Podcast appearances and mentions of bill spohn

In this engaging and insightful episode of the Building HVAC Science podcast, Eric Kaiser and Bill Spohn welcome Matt Schwoegler, founder of Blaze Infrared and longtime thermography educator. Matt shares his unexpected journey into the world of infrared—from a marketing career in the ski industry to teaching thousands about heat transfer and thermal imaging. With deep humility and clarity, he walks us through critical lessons from his 20+ year career, including some humorous—and humbling—stories from the field. Matt discusses how interpreting thermal images isn't as straightforward as it seems. From false positives caused by built-in heaters to paint that doesn't behave as expected, we hear real-world examples that underscore the importance of formal training and mentorship in thermography. He emphasizes that while technology has become more affordable, the need for skill and knowledge has only grown. The conversation closes with a compelling call to approach thermography with humility, curiosity, and a commitment to continuous learning. Matt pays tribute to the mentors who shaped his path and encourages listeners to seek guidance, invest in training, and pay it forward. Matt's quotes from the episode: “The price of the camera has nothing to do with your ability to use it well.”  “Humility is one of the most important qualities of a great trainer.”  “Infrared is like a hammer—easy to pick up, but only a skilled builder knows what to do with it.”   Here are a few standards Matt references: ASTM C1060- Standard Practice for Thermographic Inspection of Insulation Installations in Envelope Cavities of Frame Buildings (https://www.astm.org/c1060-11ar15.html) states your need a 10 C / 18 F delta T to check for missing or poorly performing insulation solar loading is referenced, that's where the 3 hr wait for wood frame buildings and up to 8 hrs for masonry structures comes from - That's how long the surface needs to be devoid of direct sunshine before inspecting with IR.   ASTM E1186 - Standard Practices for Air Leakage Site Detection in Building Envelopes and Air Barrier Systems (https://www.astm.org/e1186-22.html) NOTE IR Mentioned in 1186 as one of the pressure test methods.  states 5 C / 9 F delta T to see air leakage sites with IR   ASTM E779 Standard Test Method for Determining Air Leakage Rate by Fan Pressurization (https://www.astm.org/e0779-19.html)   Blaze Infrared: https://blazeinfrared.com/ Infrared Training Center (ITC): https://www.infraredtraining.com/ Matt's LinkedIn: https://www.linkedin.com/in/matt-schwoegler/   1 hour Video on Thermography basics from The TruTech Tools Library: https://www.youtube.com/watch?v=1qgCZCY6JCs     This episode was recorded in June 2025.  

In this in-depth episode of Building HVAC Science, hosts Bill Spohn and Eric Kaiser sit down with Phil Farese, CEO of Mojave HVAC, to explore the cutting edge of desiccant dehumidification technology. Phil, whose career began in physics at Cornell and research at Princeton before moving into consulting at McKinsey and leadership roles at NREL, Enphase, and now Mojave, brings a rare mix of scientific rigor and market savvy to the HVAC space.   The conversation traces the evolution of liquid desiccant systems and Mojave's unique approach that combines vapor compression and liquid desiccant in a single DOAS (Dedicated Outdoor Air System) unit. The result? Enhanced dehumidification, reduced energy use, and precision control of sensible and latent loads—at market-competitive prices. Phil outlines how Mojave's patented media bed and regeneration systems avoid many of the pitfalls that plagued earlier desiccant systems, while also maintaining ease of installation, low maintenance, and strong reliability.   Listeners also hear about Mojave's service philosophy, tech training programs, and broad rep network, plus a discussion of ideal use cases, efficiency standards like ISMRE (Integrated Seasonal Moisture Removal Efficiency), and how the system outperforms traditional DOAS units. Whether you're an engineer, contractor, or building owner looking to optimize HVAC performance while cutting energy bills, this episode delivers clear, science-backed insight into where dehumidification is headed.   Quotes from the episode: “We're not undoing cooling with reheat—we're using that energy to do something useful: regenerate the desiccant.”   “Liquid desiccants are like the honey of HVAC—safe, natural, and surprisingly powerful.”   “It looks like an air conditioner. That's what contractors tell us—and that's the point.”     Phil's LinkedIn: https://www.linkedin.com/in/philip-farese-49a81b1/   Mojave Energy Systems: https://mojavehvac.com/   Tony Mormino, our friend at HVAC-TV did a recent interview with Mojave: https://creators.spotify.com/pod/show/hvac-tv/episodes/Liquid-Desiccant-Dehumidification-Explained-e33elio/a-abvfahu   Eutectic system defined: https://en.wikipedia.org/wiki/Eutectic_system   AHRI Standard 920,Performance Rating of Direct Expansion-dedicated Outdoor Air System Units:  https://www.ahrinet.org/search-standards/ahri-920-i-p-and-921-si-performance-rating-direct-expansion-dedicated-outdoor-air-system-units   Papers and reports by Phil: Tool to Prioritize Energy Efficiency Investments (NREL 2012):  https://docs.nrel.gov/docs/fy12osti/54799.pdf   How to build a low-energy future (2012): https://www.nature.com/articles/488275a ASHRAE paper on Liquid Desiccants: https://mojavehvac.com/wp-content/uploads/2025/02/Liquid-Desiccant-Field-Campaign-Final-2.pdf   McKinsey paper:Unlocking Energy Efficiency in the US Economy (2009):  https://www.mckinsey.com/~/media/mckinsey/dotcom/client_service/Sustainability/PDFs/US_energy_efficiency_full_report.pdf     This episode was recorded in June 2025.  

In this high-energy episode of Building HVAC Science, Bill Spohn and Eric Kaiser welcome Tersh Blissett—entrepreneur, podcaster, and automation enthusiast—for a deep dive into how AI and automation are transforming service businesses. Tersh, known for running multiple HVAC, plumbing, and electrical companies, shares his journey from podcasting beginnings to becoming a Zapier expert and automation evangelist. He explains how AI voice tools, custom GPTs, and platforms like Notebook LM and PhoneTap are helping streamline operations, improve call conversions, and create more consistent customer experiences. The conversation explores both the promise and the pitfalls of AI, from building SOPs and staff training bots to setting up Slack-integrated employee handbooks. Tersh doesn't shy away from the challenges—like automating broken processes or managing security risks—but encourages listeners not to ignore these powerful tools. He wraps up by offering guidance and community resources for those looking to start their AI journey, reinforcing the message: don't automate for automation's sake—do it to solve real problems. Quotes from today's episode: “If you do something more than three times a week, optimize it, automate it, or delegate it.” “Don't automate just to automate—solve a problem first.” “Authentic human tone is going to win, even if AI is writing it.”   Tersh's LinkedIn: https://www.linkedin.com/in/tershblissett/ Trade Automation Pros: https://tradeautomationpros.com/ Tersh's email: tersh@tradeautomationpros.com/ Tersh's Podcast: https://www.servicebusinessmastery.com/ Other links mentioned in today's episode: https://scribehow.com/ Capture computer based learning/processes Skool.com (look for the Automation Foundation) www.plaud.ai/products/plaud-notepin  (always recording pendant) https://notebooklm.google/ Understand anything https://chat.chatbotapp.ai/claude Claude by Anthropic This episode was recorded in June 2025.  

In this episode of Building HVAC Science, Bill Spohn and Eric Kaiser welcome back Brent Davidson, founder of the U.S. Heat Pump Summit, for an energizing discussion that soars from glider flights to the frontlines of heat pump education and adoption. Brent shares the story behind launching the Summit—from a hunch inspired by his solar-industry background to a growing movement that now brings together top contractors, technical experts, manufacturers, and rebate program leaders. The goal? To improve both the business and field deployment of air and water-based heat pump solutions. Brent outlines what sets the Summit apart: a laser focus on real-world, immediately actionable knowledge, a casual and collaborative vibe, and a mission to unify high-performance trades around the electrification of homes. This year's event, happening November 18–19 at the DCU Center in Worcester, MA, will feature expanded tracks, a full trade show floor, and a speaker lineup packed with industry leaders. The conversation closes with a nerdy deep dive into the “coffin corner” of aviation physics—showcasing Brent's curious mind and setting the tone for the Summit itself: smart, focused, and driven to elevate the industry. The first podcast Brent came on:  https://www.buildinghvacscience.com/ep132-the-heat-pump-summit-with-brent-davidson-august-2023/   US Heat Pump Summit: https://www.usheatpumpsummit.com/ Brent's LinkedIn: https://www.linkedin.com/in/brentdavidson/ Brent's email: Brent@usheatpumpsummit.com   This episode was recorded in June 2025.  

"As homes get tighter, ventilation isn't optional—it's essential." — Patrick Nielsen   In this episode of RESTalk, host Bill Spohn sits down with Patrick Nielsen, Global Technical Products Manager at Broan-NuTone, to discuss the evolving world of home ventilation. With over two decades of experience, Patrick walks us through the major drivers shaping residential ventilation practices today—from tighter building envelopes to the growing emphasis on indoor air quality and energy efficiency. Patrick explains the importance of dwelling unit ventilation (DUV), spot vs. whole-house strategies, and the increasing role of energy recovery ventilators (ERVs) as builders and raters seek practical ways to meet stringent codes and achieve better HERS scores. He also touches on upcoming developments like capture efficiency standards for range hoods, automated balancing features in modern ERVs, and the implications of makeup air requirements. Whether you're a builder, rater, or HVAC pro, this episode is packed with actionable insights for navigating the ventilation challenges in today's high-performance homes. Patrick's LinkedIn: https://www.linkedin.com/in/patrick-nielsen-48b93a3/   Broan's website: https://broan-nutone.com/en-us Broan Specficier tools (A variety of code-compliant specification tools for project applications.): https://broan-nutone.com/en-us/home/specifier-tools   The Home Ventilating Institute (HVI): www.hvi.org   Links to ASHRAE 62.1 and 62.2 standards: https://www.ashrae.org/technical-resources/bookstore/standards-62-1-62-2   One of many sites to find building codes by state: https://ibhs.org/public-policy/building-codes-by-state/ To the RESNET® community, we hear you and want to engage. Learn more at www.RESNET.us. For more info on this topic, contact RESNET at INFO@RESNET.US  

“Proposals don't save energy… action does.”  — Bill Spohn   “I didn't know how cool this thing was until we started sharing it with the world.”  — Amanda Godward “Change is hard—but that's what makes it great.”  — Amanda quoting Ross Trethewey from This Old House   In this episode of Building HVAC Science, hosts Bill Spohn and Eric Kaiser welcome Amanda Godward, founder of Ecotelligent Homes and Ecotelligent Software. Amanda shares her journey from mechanical engineer in the auto industry to a passionate home performance contractor and software developer. Her Excel-based audit tool, born from a need to streamline customer reports and drive action, eventually evolved into a full-blown mobile and desktop app that's now saving contractors hours per appointment.   Ecotelligence Software is designed by a contractor for contractors. It supports fast, accurate energy audits and work orders, including customizable good-better-best proposals, automated workflows, and rich documentation via mobile-friendly tools. Amanda highlights how her engineering background helped her embed best practices, consistency, and compliance into the platform, resulting in better customer outcomes and more efficient field operations.   From audit to install, Amanda's thoughtful approach and personal joy in helping others shines through. The conversation underscores the value of consultative selling, real-time proposals, and how the right tool can empower contractors to fix more homes faster—all while delighting customers and installation crews alike.   Amanda is offering discount code: BSHVAC to get half off your first month of service with Ecotelligent, this code expires June 30, 2025.    Ecotelligent software: https://ecotelligentsoftware.com/   Amanda's LinkedIn: https://www.linkedin.com/in/amanda-godward-28898b9/   Amanda's email: amanda@ecotelligentsoftware.com   Amanda's home performance business: https://www.ecotelligenthomes.com/     This episode was recorded in May 2025.  

“The process doesn't fail. The technician fails to follow the process.”  – Dirk Nauman In this inspiring episode of the Building HVAC Science Podcast, Eric Kaiser and Bill Spohn are joined by Dirk Nauman—HVAC trainer, simulator inventor, and founder of Visual 3D Academy. Dirk shares his personal transformation from a nervous first-time trainer to an industry innovator dedicated to improving HVAC education through simulation and visualization. He discusses how necessity drove him to create his first HVAC simulator from scrap components, eventually evolving it into a line of compact training tools now used in schools, prisons, and technical programs across North America. Dirk also introduces the Visual 3D Academy platform, a 3D-based learning system designed to immerse students in HVAC theory like never before. From diagnosing faults to exploring animated equipment cutaways, learners can access both physical simulators and virtual models. He emphasizes the importance of foundational understanding and how his mission includes supporting returning citizens and changing lives through education. This episode is packed with insights on building training tools from scratch, applying theory in meaningful ways, and using technology to close the skills gap in HVAC. Whether you're a contractor, educator, or technician, Dirk's story will energize your approach to learning—and teaching—the trade. Dirk''s LinkedIn: https://www.linkedin.com/in/dirk-nauman/ Visual 3D Academy website: https://www.visual3dacademy.com/ HVAC Simulator Website: https://hvacsimulator.com/ Dirk's Technician vs. Mechanic video: https://vimeo.com/1057050226 Dirk's email address: dirk@hvacsimulator.com The book he mentions (By Daniel W. Bixby): Product Training for the Technical Expert: https://a.co/d/0lmP00o     This episode was recorded in May 2025.  

“We're not guessing what's inside the walls—we're measuring how homes really use energy.” Max Reichlin In this episode of the Building HVAC Science Podcast, Eric Kaiser and Bill Spohn sit down with Max Reichlin from Clean Power Research to explore a groundbreaking HVAC tool: Thermentor. Designed to bridge the gap between estimated and actual residential energy loads, Thermentor leverages real energy usage data to perform virtual energy audits. The goal? More accurate, faster, and accessible load calculations that empower contractors and homeowners alike—particularly when considering heat pumps, dual fuel systems, or just right-sizing equipment. Max shares the origin story of Thermentor, explains how the tool works, and discusses its current deployment across a handful of U.S. states, with more to come. He also outlines future plans, including better integration with real-time thermostat data and improved incentive visibility. Listeners will gain insight into how traditional Manual J calculations may overshoot actual needs, and why tools like Thermentor could reshape how we approach home comfort and efficiency. Whether you're an HVAC pro or a curious homeowner, this episode delivers valuable context on where HVAC technology is headed—and how data-driven tools are making that future a little smarter.   Max's LinkedIn: https://www.linkedin.com/in/maxreichlin/ Thermentor website: https://www.thermentor.com/ Thermentor White Papers: https://www.thermentor.com/how-does-it-work/#white-papers     This episode was recorded in May 2025.  

In this episode of the Building HVAC Science Podcast, Eric Kaiser and Bill Spohn welcome Ben Hildebrandt, a passionate advocate for building science and green technology education at the Southern Alberta Institute of Technology (SAIT). Ben shares his winding career path—from automotive mechanics to aircraft maintenance to architectural technology—and how that journey has shaped his deep commitment to sustainable building practices. Ben discusses the role of applied research at SAIT, highlighting its focus on real-world implementation of green technologies in residential and commercial buildings. He covers the challenges of deep energy retrofits, labor shortages, and siloed efforts within the industry, and offers insights into training programs aimed at bridging those gaps. The conversation also explores comfort, thermal resilience, and the importance of integrating mechanical systems with building envelopes to avoid costly failures. Whether you're a contractor, designer, educator, or just curious about the future of high-performance buildings, this episode delivers a comprehensive look at what's working—and what still needs work—in the green building movement. Some great quotes from the episode: You can't have a green building if you ignore building science—it's the foundation for comfort, health, and durability." "The real challenge isn't technology—it's training enough people to use it right." "We don't need more silos in this industry. We need bridges."   Ben's LinkedIn: https://www.linkedin.com/in/brhildebrandt/ Residential Deep Energy Retrofit Guide (Free PDF Download): https://www.enbix.ca/document/a-guide-to-deep-energy-retrofits/   SAIT Applied Research and Innovation Services Hub: https://www.sait.ca/research-and-innovation-services   Retrofit Canada (some great completed Canadian Retrofit Case studies here): https://retrofitcanada.com/       This episode was recorded in May 2025.  

"You can't manage what you can't measure." — Peter Drucker   In this insightful episode of RESTalk, host Bill Spohn welcomes Scott Doyle, RESNET's Managing Director of Quality Assurance (QA), for a comprehensive update on what's ahead in the world of RESNET QA®. Scott unpacks the most significant changes hitting the registry, Chapter 9 standards, and the QA app—all designed to modernize, streamline, and strengthen the QA process. The conversation delves into how these updates will affect HERS® raters and providers, with a major focus on the ENERGY STAR QA/QC program. Scott outlines the move toward increased documentation, real-time oversight, and the eventual integration of automation and AI into RESNET's workflow. With the industry's expectations for speed and accuracy climbing, these changes aim to ensure trust, defensibility, and better service. He also gives a call to action: start adapting now by reviewing ENERGY STAR Field Checklist Revision 14. Whether you're a provider, QAD, or rater, this episode equips you with both the “why” and the “what's next” behind the QA evolution—and how to stay ahead of the curve. Note: This episode was recorded on May 1, prior to the recent speculation that the Trump administration is planning to eliminate the EPA and ENERGY STAR. RESNET has been active in advocating for the preservation of the 45L tax credit and ENERGY STAR Homes and will continue to provide updates as more information becomes available.  Scott's LinkedIn: https://www.linkedin.com/in/scott-doyle-84750823/ Link to RESTalk Episode 134: Boosting Efficiency: How RESNET's QA App Is Transforming the Industry https://directory.libsyn.com/episode/index/id/33586437 Energy Star National Field Rater Checklist, Rev 14: https://www.energystar.gov/sites/default/files/2025-01/National%20Rater%20Field%20Checklist_Rev%2014.pdf RESNET QA Compliance Specialist Job Postings: https://www.resnet.us/articles/job-posting-resnet-qa-compliance-specialists-regional-positions/ To the RESNET® community, we hear you and want to engage. Learn more at www.RESNET.us. For more info on this topic, contact RESNET at INFO@RESNET.US  

In this episode of Building HVAC Science, Eric Kaiser and Bill Spohn are joined by a special guest who's carrying on the Spohn legacy—Billy Spohn. The trio recaps their experience at the 2025 National Home Performance Conference in New Orleans, the largest in the event's history, with over 2,800 attendees. They reflect on the continued convergence of HVAC and building performance disciplines, and how this cross-pollination is finally taking root at scale. From highlights in the expo hall, including interest in the new RetroTec Air Tracer and the Testo 860i thermal imager, to insightful sessions on whole-home solutions and ventilation maintenance, the conversation underscores the critical value of collaboration and continuing education. Bill shares a touching moment from his “Faces of Energy Efficiency” interview, revealing how this conference shaped his path and even inspired the founding of TruTech Tools. The episode closes with admiration for industry legends like John Tooley and rising influencers like Genry Garcia, who exemplify the power of blending theory, tools, and field application. Whether you're a veteran or a first-time attendee, this recap will inspire you to think holistically about comfort, health, and energy use in buildings—and maybe even join the community at the next show in Columbus, OH, in 2026. The next NHPC in 2026: https://building-performance.org/events/national/     Our lineup of Building Performance and HVAC tools: https://trutechtools.com/all-categories     LinkedIn: https://www.linkedin.com/in/eric-kaiser-323a1563/ https://www.linkedin.com/in/billy-spohn-jr-a06201a3/ https://www.linkedin.com/in/billspohn/     This episode was recorded in April 2025.  

“You don't want to be in the role of telling people what to do, but it's encouraging people to do what you think is right, but also being open to learn from them.” - Bill Spohn In this episode of The Entrepreneur Gene, host Laurie Barkman welcomes Bill Spohn, President and CEO of Tru Tech Tools, to discuss the characteristics of the entrepreneurial mindset, the intersection of engineering and entrepreneurship, and his career journey. Bill shares his family's legacy of risk-taking, talks about the challenges he faces as a business owner, and provides advice for other entrepreneurs. He also discusses his passion for sustainability through the construction of his eco-friendly home and his involvement in the HVAC industry.    Takeaways: Leaders should frequently communicate their vision and goals. Repeating key messages helps ensure everyone understands and aligns with the mission. Reinforce core values and objectives regularly in meetings and newsletters. Connect with other CEOs and entrepreneurs to share experiences and solutions. Maintain a network of peers for regular discussions and support, as it's essential to normalize and tackle common challenges. Highlighting and rewarding team members' adherence to core values can foster a positive and cohesive company culture. Use real-life examples to illustrate these values in action to make them more relatable and tangible. Stay engaged with the latest trends and educate your customers and team on new techniques and processes. For example, using podcasting and presentations to disseminate knowledge and build authority in your industry.   Links: Facebook: https://www.facebook.com/groups/254934411710666/  LinkedIn: https://www.linkedin.com/in/billspohn/  Website: https://trutechtools.com/  Podcast: https://www.buildinghvacscience.com/   

In this episode of Building HVAC Science, hosts Bill Spohn and Eric Kaiser sit down with Jeff Cherif and David Madden from JB Industries, a long-standing, U.S.-based HVAC tool manufacturer with deep roots in Aurora, Illinois. Jeff shares his fascinating journey from Motorola executive in Dubai to co-owner of JB Industries, sparked by a chance rooftop encounter with one of JB's own vacuum pumps in the Middle East. David brings a multi-generational connection to the business and reflects on the evolution of JB's manufacturing ethos and engineering depth. The conversation dives into what sets JB apart: a true commitment to American manufacturing, ultra-durable tool designs, and a strong feedback loop with HVAC contractors. The team shares stories behind new product development, including their latest line of wireless probes and a replaceable-sensor micron gauge. They emphasize quality, repairability, and a willingness to collaborate directly with field pros who have fresh ideas. It's a heartfelt and detailed look at a company staying grounded in principles while pushing innovation forward.   Link to JB's website: https://www.jbind.com/ Link to JB's product line: https://trutechtools.com/jb-industries.html Link to the JB Product Ideas form: https://www.jbind.com/wp-content/uploads/2025/04/JB-Product-Idea-Submission-Form_web.pdf JB ClimateClass Wireless probes:https://trutechtools.com/jb-climate-class.html/ Jeff's LinkedIn: https://www.linkedin.com/in/jeff-cherif-15351a1/ Dave's LinkedIn: https://www.linkedin.com/in/david-madden-926b6890/   This episode was recorded in April 2025.  

“How much pain they have cost us, the evils which never happened.” —Thomas Jefferson In this episode of the Building HVAC Science Podcast, Eric Kaiser and Bill Spohn sit down with Anthony Woo, an HVAC contractor from Quebec, Canada. Anthony shares his journey from dropping out of college to becoming a successful business owner specializing in heat pump installations in one of North America's coldest climates. He discusses his personal and professional evolution, from gaining confidence through a Tony Robbins seminar to implementing systems like EOS in his rapidly growing business. Anthony also highlights the power of data-driven decisions, the importance of networking through NCI, and his passion for educating homeowners about indoor air quality and comfort. Throughout the conversation, Anthony gives us a peek into his strategic approach to business growth, emphasizing sustainable scaling, reinvesting in his team, and leveraging modern tools like the TrueFlow Grid for diagnostics. He also talks about creating a strong personal brand and reputation that fueled his success primarily through word-of-mouth marketing. This episode offers actionable insights for HVAC professionals looking to elevate their craft, implement smart business practices, and lead with purpose. Some thought nuggets from Anthony: “Podcasts are like a university on wheels for learning.” “As I learn new things, I'm conscious of making sure my colleagues have the framework to understand what I am talking about.” “I apply filtration to ideas to decide what to implement.” Finally, Anthony offers a simple yet powerful piece of advice: set your goals, make a plan, and go after what you want—without fear. After we finished recording, ELK helped summarize: “You've said you don't know how to run a business. What you are really saying is you are not running a business the way others do or advise you to do, you are running your business on your own terms.”   Anthony's LinkedIn Profile: https://www.linkedin.com/in/anthony-woo-88a77466/ YouTube: https://www.youtube.com/@ClimatisationACG Facebook: https://m.facebook.com/anthonywoohvac/reels/ Instagram: https://www.instagram.com/climatisationacg/     This episode was recorded in March 2025.

“You can be high quality and effective, but also efficient at the same time.” — Furman Haynes, Founder of WorkHero   In this episode of the Building HVAC Science Podcast, Eric Kaiser and Bill Spohn sit down with Furman Haynes, co-founder of WorkHero, to explore a critical challenge facing small HVAC business owners: the administrative burden that stifles growth. Furman shares his journey into the HVAC industry, inspired by a passion for building organizations that support small business success. He recounts his eye-opening experiences at industry events and his realization that paperwork and administrative tasks often overwhelm small operators. Furman explains how WorkHero was designed to provide expert office management for companies with under ten employees—helping them streamline operations without adding complex software. Through a combination of dedicated virtual office managers and AI-powered tools, WorkHero tackles the paperwork bottlenecks that can prevent growth. Furman also discusses insights from their recent industry survey, revealing that small businesses spend over 15 hours a week on admin work and often get stuck at the $1-2 million revenue mark without making strategic investments in people or systems. The conversation wraps up with Furman's take on the importance of mindset shifts for owner-operators, the role of data in improving pricing strategies, and the need for a supportive community like www.BetterHVAC.org to ensure quality-focused businesses can remain profitable and thrive. Furman's LinkedIn: https://www.linkedin.com/in/furmanhaynes/ His email: furman@workhero.pro  Work Hero Website: https://www.workhero.pro/ Link to the Survey Results: https://www.workhero.pro/blog/report There are many reports out there, but none of them look specifically at the day-to-day realities of running your own small business. ‍   That's why WorkHero partnered with HVAC School to survey over 1,300 industry professionals.   This Industry Pulse report examines:   The state of the industry - from company sizes to revenue patterns How contractors balance technical work with business operations Why owners often hit a growth ceiling around $1-2M in revenue Which tools and technologies companies are adopting What successful companies are doing differently Drawing from real data across the country, we provide insights about managing growth, freeing up owner time, and dealing with the technician shortage. The findings reveal both challenges and opportunities for contractors of all sizes.   This episode was recorded in March 2025.  

"Innovation is taking two things that exist and putting them together in a new way." — Tom Freston   In this episode of the RESTalk podcast, Bill Spohn sits down with Jason Barlow, former President & CEO of Habitat for Humanity Central Arizona, to discuss a groundbreaking achievement in homebuilding—the first 3D-printed concrete home in Arizona. Jason shares how this innovative project, born from a collaboration with ASU graduates and a German scaffolding company, PERI, pushed the boundaries of affordable housing construction. From overcoming extreme heat challenges to designing a home with unique structural and artistic elements, Jason details the incredible journey of bringing this home to life. The conversation dives into the long-term implications of 3D printing in construction, its potential for large-scale housing developments, and the lessons learned from Habitat's pioneering efforts. Jason also touches on Habitat's broader mission, its work in providing energy-efficient and affordable housing, and how listeners can engage with their local Habitat affiliates. This episode is a fascinating look at the intersection of technology, sustainability, and community impact.   Here is the LinkedIn profile for our podcast guest Jason Barlow: https://www.linkedin.com/in/jasbarlow/   Additional information as well on the 3D home.   https://habitatcaz.org/habitats-first-3d-printed-home-in-the-u-s/   Habitat Resnet Presentation 2025.pdf Habitat for Humanity's first 3D-printed home in Arizona Why not us? Habitat's 3D-Printed home in Tempe, Arizona (3 min)   To the RESNET® community, we hear you and want to engage. Learn more at www.RESNET.us. For more info on this topic, contact RESNET at INFO@RESNET.US  

In this episode of the Building HVAC Science Podcast, Bill Spohn and Eric Kaiser interview Jake Yurek, the co-founder of Pearl Edison, a platform designed to simplify the installation of energy-efficient systems for homeowners and contractors. Jake shares the origins of the company's name, inspired by Thomas Edison's first power station on Pearl Street, and explains how Pearl Edison partners with trusted entities like utilities and city governments to facilitate HVAC installations. Their approach aims to reduce customer acquisition costs for contractors while improving the decision-making process for homeowners. Jake delves into the unique value proposition of Pearl Edison: acting as an intermediary that guides homeowners to the right system design before involving contractors. This approach saves contractors time and increases profitability by ensuring they engage with highly qualified leads. Pearl Edison focuses on maintaining high-quality standards by utilizing BPI-certified experts for home assessments, conducting blower door tests, and leveraging robust data analytics to provide personalized system recommendations. The conversation also explores Pearl Edison's business model of partnering with utilities and local governments, its strategic expansion plans, and the commitment to building trust and comfort with homeowners. Jake highlights the company's continuous messaging and technology evolution to serve contractors and enterprise partners better. He invites interested contractors to connect with Pearl Edison, emphasizing the potential for mutually beneficial partnerships as the company grows into new markets. Learn more at: https://www.pearledison.com/ Jake's LinkedIn: https://www.linkedin.com/in/jakeyurek/   This episode was recorded in February 2025.

In this episode of Building HVAC Science, Bill Spohn and Eric Kaiser sit down with Eric George, founder of Home Comfort Advisor, to discuss his journey from insulation and energy audits to content creation and education. Eric shares how his background in home performance shaped his passion for providing homeowners and tradespeople with reliable, science-based information. He details his soon-to-launch online course, which simplifies building science principles for homeowners and professionals alike, helping them ask the right questions and make informed decisions about home comfort, insulation, and energy efficiency. Eric also dives into the importance of proper diagnostics, virtual inspections, and the role of high-quality content in debunking myths and misinformation in the industry. Eric's insights and resources provide a fresh, practical approach to improving indoor environments if you're a contractor, homeowner, or just someone interested in the science behind home comfort. Tune in to learn more about his course, YouTube channel, and how he's making building science accessible to all. Eric's LinkedIn: https://www.linkedin.com/in/ericngeorge/ Learn Home Comfort Resources: https://learnhomecomfort.com/ His YouTube channel: https://www.youtube.com/@HomeComfortAdvisors His course: https://myhomecomfortadvisor.com/   This episode was recorded in February 2025.

In this episode of Building HVAC Science, hosts Bill Spohn and Eric Kaiser welcome Sophie Ashley of Energy Vanguard, an HVAC designer with a background in carpentry and building science. Sophie shares her journey from hands-on construction work to HVAC design, emphasizing the critical integration of mechanical systems and building structures. She discusses the importance of feedback loops with installers and her experience performing HERS ratings in the field. Sophie also highlights the shift toward high-performance homes, the growing adoption of heat pumps, and the evolving role of ventilation strategies like ERVs. She provides insights on overcoming industry challenges, the need for better collaboration between trades, and the importance of attracting more women to the field. Wrapping up, she encourages continuous learning and engagement in the HVAC community, emphasizing the rewarding nature of the industry. Energy Vanguard website: https://www.energyvanguard.com/ Sophie on LinkedIn: https://www.linkedin.com/in/sophie-ashley-6b531119a/   This episode was recorded in February 2025.

"Leadership and learning are indispensable to each other."  – John F. Kennedy   In this episode of RESTalk, host Bill Spohn welcomes the 2025 Emerging Leadership Council (ELC) fellows—Jennifer Goldberg, Dorian Gothard, and Alex Haworth—for an insightful discussion on their career journeys, experiences at the RESNET conference, and their visions for the future of energy efficiency and building science. Each fellow shares how they entered the industry, what drew them to the ELC program, and how they apply their knowledge professionally and personally. The conversation covers key takeaways from the RESNET conference, including the industry's ambitious goal of 1 million HERS ratings by 2028, the importance of HVAC grading, and the role of building science in improving homes and communities. Throughout the episode, the fellows highlight the value of collaboration, education, and continuous learning, inspiring those new to the industry and seasoned professionals. Whether you're a rater, builder, or someone passionate about energy efficiency, this episode provides valuable insights into the next generation of industry leaders shaping the future.   Here are the LinkedIn profiles for our podcast guests: Alex Haworth: https://www.linkedin.com/in/alexander-haworth-aa1b90227/ Jennifer Goldberg: https://www.linkedin.com/in/jennifer-goldberg-4688b6107/ Dorian Gothard: https://www.linkedin.com/in/dorian-gothard/ To the RESNET® community, we hear you and want to engage. Learn more at www.RESNET.us. For more info on this topic, contact RESNET at INFO@RESNET.US

In this episode of Building HVAC Science, Bill Spohn and Eric Kaiser, along with the TruTech Tools team, recap their experiences at the 6th Annual HVACR Training Symposium and AHR Expo in Orlando, Florida. They share insights from meeting industry professionals, attending educational sessions, and exploring the latest HVAC tools and technology. The team discusses key highlights, including the impact of Second Chance University, the HVAC Tactical Awards, and the High-Performance Hangout, emphasizing the strong sense of community within the industry. The team also dives into standout products showcased at AHR, such as Testo's new thermal imaging cameras, Inficon's D-TEK Pro leak detector, and NAVAC's latest digital manifold. They touch on the increasing role of technology in HVAC, including EEV Mate's electronic expansion valve tool and advancements in vacuum pumps and refrigerant scales. Finally, they reflect on the growing educational initiatives in HVAC, such as the Grit Foundation's efforts to introduce young people to the trades and the launch of Better HVAC, a nonprofit that fosters ethical practices and knowledge-sharing. Whether you attended the events or missed out, this episode provides an engaging recap of what's shaping the HVAC industry in 2024. Tune in to hear firsthand experiences and takeaways from some of the most significant gatherings in the field!   Two things we missed: The Third US HeatPumpSummit is on tap for this November in Massachusetts. https://www.usheatpumpsummit.com/   Our friends at www.WorkHero.pro ran a survey in conjunction with the www.HVACRSchool.com to look at the day-to-day realities of running a small HVAC business. See the survey results here: https://www.workhero.pro/blog/report   Sue on LinkedIn: https://www.linkedin.com/in/suzanne-bertsch-962496174/ Josh on LinkedIn: https://www.linkedin.com/in/josh-crawley-20b41550/ Bill, Jr. on LinkedIn: https://www.linkedin.com/in/billy-spohn-jr-a06201a3/ Eric on LinkedIn: https://www.linkedin.com/in/eric-kaiser-323a1563/ Bill, Sr. on LinkedIn: https://www.linkedin.com/in/billspohn/   2nd Chance University: https://2ndchanceuniversity.org/   www.BetterHVAC.org                     HVAC Tactical: https://hvactactical.com/   www.TheGritFoundation.com   https://hvacrschool.com/events/6th-annual-hvac-r-training-symposium/   The NCI Summit: https://www.gotosummit.com/ This episode was recorded in February 2025.  

Join us for a candid conversation with Bill Spohn from TruTech Tools at AHR Expo 2025! Bill shares exciting news about his planned retirement and transition plan for TruTech Tools, plus gives his insights on this year's 6th Annual HVAC/R Training Symposium where TruTech Tools was the title sponsor. We discuss the unique community atmosphere of both the Symposium and AHR Expo, exploring what makes these events special for the HVAC industry. In this livestream, we dive into: Bill's announcement about transitioning TruTech Tools leadership to his son over the next 3 years A detailed recap of HVAC School Symposium and what made it successful Thoughts on building authentic industry communities and fostering connections Leadership insights and maintaining vision while giving team members agency Perspectives on AHR Expo 2025 and why it matters for HVAC professionals    Don't forget to use offer code GETSCHOOLED for a great discount at trutechtools.com! Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool. Purchase your tickets or learn more about the 6th Annual HVACR Training Symposium at https://hvacrschool.com/symposium. Subscribe to our podcast on your iPhone or Android. Subscribe to our YouTube channel. Check out our handy calculators here or on the HVAC School Mobile App for Apple and Android

In this episode of Building HVAC Science, Eric Kaiser and Bill Spohn welcome Craig Migliaccio, the creator of AC Service Tech, author, educator, and industry influencer. Craig shares his journey from teaching HVAC in high school to becoming a prolific author and content creator, driven by a passion for making practical, hands-on learning accessible to HVAC professionals and students. With over 60,000 copies sold of his first book and a rapidly growing suite of resources, Craig has made an indelible mark on the industry. Craig discusses the challenges and rewards of writing technical books, the value of bridging the gap between theory and practice, and the immense effort involved in producing educational materials. His team-driven approach and dedication to quality are evident in his books, training tools, and YouTube channel, which boasts over 500,000 subscribers. Craig also emphasizes the importance of work-life balance, family, and faith, encouraging listeners to prioritize their well-being alongside their professional goals. Craig's motivation to write came from gaps he observed in existing HVAC textbooks, leading him to create step-by-step, procedure-focused resources. Building a robust educational platform requires collaboration, persistence, and a willingness to iterate and improve. Craig's advice to technicians: prioritize family, invest in knowledge and skills, and focus on meaningful connections in the industry. Craig's YouTube Channel: https://www.youtube.com/@acservicetechchannel Craig's books at TruTech Tools: https://trutechtools.com/ac-service-tech/ And his newest book can be found here: https://trutechtools.com/ac-service-tech-refrigerant-charging-and-service-procedures-2nd-edition/ His website: https://www.acservicetech.com/ EP 74 with Craig from 2022: https://www.buildinghvacscience.com/ep74-where-you-can-go-with-passion-and-persistence-with-craig-migliaccio-april-2022/ Craig on LinkedIn: https://www.linkedin.com/in/craig-migliaccio-71085a74/   This episode was recorded in January 2025.  

In this heartfelt episode of the Building HVAC Science Podcast, Eric Kaiser and Bill Spohn welcome Manly Arnason, an HVAC business owner from Brandon, Manitoba, Canada. Manly shares his journey of transformation—from a challenging past to becoming a dedicated tradesperson with a mission to bring integrity and quality to the HVAC industry. Drawing from his experiences running a small business, Manly opens up about the challenges of implementing proper practices in the trades, the importance of continuous education, and the role of community in fostering growth and excellence. Manly's story highlights the power of personal and professional change, emphasizing his commitment to commissioning systems properly, adhering to codes, and treating customers with the respect they deserve. The conversation touches on the unique challenges of working in the Canadian climate, the significance of national apprenticeship programs, and the value of building a like-minded community to support others striving to improve their craft. This inspiring episode is a reminder that growth, both personal and professional, begins with a decision to do better. His business website: https://www.firstcallbrandon.ca/ His business on Facebook: https://www.facebook.com/firstcallbrandon Manly's email: firstcall2255@gmail.com     This episode was recorded in January 2025.

“Excellence is never an accident. It results from high intention, sincere effort, intelligent direction, skillful execution, and the vision to see obstacles as opportunities."   – Aristotle (adapted interpretation) In this insightful episode of RESTalk, host Bill Spohn interviews three key members of RESNET's team.: Ryan Moore, Jordi Kimbrough in Quality Assurance, and Michael Matthews in Programs. Each brings a unique background and perspective to their roles, strengthening RESNET's mission to ensure high-quality standards in energy-efficient home ratings. Ryan Moore, the Quality Assurance Investigations Program Manager, shares his journey from a varied background in environmental studies, construction, and tourism to his pivotal role at RESNET. Ryan emphasizes the importance of a level playing field in the rating industry, using investigations to ensure compliance and education among stakeholders. Jordi Kimbrough, Quality Assurance Project Manager, reflects on her serendipitous entry into the rating world and her focus on making providers' challenging roles more manageable. She highlights her goals of streamlining processes, providing training, and gathering feedback to reduce ambiguity and enhance the industry's efficiency. Michael Matthews, Programs Engagement Specialist, rounds out the conversation with his passion for connecting people and advancing energy efficiency. From his early days in weatherization to his current role, Michael facilitates stakeholder conversations, promotes better building practices, and supports t's RESNET's ambitious goals. The episode concludes with discussing the value of teamwork, service, and a shared commitment to sustainability, underscoring the human connection behind RESNET's impactful work. Here is the contact info for our guests: Jordi Kimbrough: Jordi@resnet.us Michael Matthews Michael@resnet.us, https://www.linkedin.com/in/michael-matthews-a8931928/ Ryan Moore: Ryanmoore@resnet.us, https://www.linkedin.com/in/rymoore/ Here is a link to the complaint resolution process: https://www.hersindex.com/about-resnet/complaint-resolution-process/ and the Complaint form https://www.hersindex.com/file-complaint-resolution/   Job Posting for Regional Positions for QA specialists: (Posted 12-4-24) https://www.resnet.us/articles/job-posting-resnet-qa-compliance-specialists-regional-positions/ To the RESNET® community, we hear you and want to engage. Learn more at www.RESNET.us. For more info on this topic, contact RESNET at INFO@RESNET.US

In this engaging episode of the Building HVAC Science Podcast, hosts Eric Kaiser and Bill Spohn welcome Jason Esteves and Dan Kelly from Seitron Americas. The discussion offers an in-depth look at Seitron's evolution, its role in the HVAC industry, and the company's dedication to training and customer support. Jason and Dan share their personal journeys, recounting how they started in the industry, their mentorship under the late Ray Biarnes, and their passion for delivering high-quality products and service. The conversation highlights Seitron's live-fire training academy, the launch of new products like the BeSafe portable gas monitors and combustion analyzers, and their upcoming refrigeration tools debuting at AHR Expo. The guests emphasize the company's focus on customer feedback, innovation, and a family-oriented culture. Personal anecdotes, such as Jason's son competing in the Little League World Series and their mutual connection to their soccer coach turned mentor, add a relatable and heartfelt dimension to the episode. This episode is a must-listen for HVAC professionals eager to learn more about Seitron's commitment to supporting technicians, innovating in the field, and fostering a sense of community in the industry. Find Seitron at Booth 5391 at the AHR expo Seitron's homepage: https://seitron.com/en_us/ Seitron Products at TruTech Tools: https://trutechtools.com/seitron-americas.html Jason's contact info: https://www.linkedin.com/in/jason-esteves-9690255/ jesteves@seitronamericas.com Dan's contact info: https://www.linkedin.com/in/dan-kelly-b387b873/ dkelly@seitronamericas.com   This episode was recorded in January 2025.

In this insightful episode of Building HVAC Science, co-hosts Bill Spohn and Eric Kaiser reconnect with Silas Hoeppner for a follow-up discussion that dives deeper into optimizing comfort and efficiency in existing homes. Silas shares his journey of transitioning from a house-centric approach to an occupant-centric model in his work, detailing the lessons he's learned and how these shifts have reshaped his philosophy. You can find more details on Silas' backstory in Episode 193, found here: https://www.buildinghvacscience.com/ep193-building-performance-with-purpose-silas-hoeppners-journey-november-2024/ Silas explains the importance of understanding homeowners' unique goals and success metrics rather than imposing a one-size-fits-all solution. Through his experiences, he emphasizes the value of asking the right questions, effectively addressing comfort issues, and avoiding assumptions about efficiency or customer priorities. Silas also explores the nuances of balancing technical precision with customer communication, highlighting real-life examples of problem-solving that reflect this paradigm shift. The conversation touches on common misconceptions, such as the oversizing of heat pumps and misplaced priorities in energy audits. Silas concludes by offering actionable advice for listeners: prioritize clear communication, understand the occupants' real needs, and ensure solutions align with both immediate and long-term goals. Here is his LinkedIn profile: https://www.linkedin.com/in/silasjames/   This episode was recorded in December 2024.

Networking is not about just connecting people.  It's about connecting people with ideas and opportunities -Michele Jennae   In this episode of RESTalk, Bill Spohn chats with Clara Hedrick, Lead Events Coordinator for RESNET®, to discuss the upcoming 2025 RESNET® Conference. Clara shares the event details, which is set to take place from January 26-29, 2025, in Tempe, Arizona. Attendees can look forward to engaging sessions, dynamic networking opportunities, and exciting receptions hosted by sponsors like NAIMA and Knauf. Clara highlights the innovative offerings this year, including a live demonstration of the new RESNET® insulation grading standard and Knauf's VR training system. Clara also delves into the conference's tracks, which cover a broad range of topics such as building science, workforce development, and energy codes. Special events like the offsite Fulton Homes tour and training opportunities add further value to the conference. Looking ahead, Clara announces future RESNET® conference locations: San Antonio, TX in 2026 and Savannah, Georgia, in 2027, both offering unique settings for continued learning and connection. Bill wraps up by encouraging listeners to explore the conference page at resnet.us/2025 for more details and download the WHOVA app to easily access schedules, session info, and networking opportunities. Here's the link to the conference website: https://whova.com/web/1qIMgnn8Jh5Y4xsupaZaVuFO57dR7GOfzNfNibqilSE%3D/ To reach the conference team, you can email them at: conference@resnet.us To the RESNET® community, we hear you and want to engage. Learn more at www.RESNET.us. Or for more info on this topic, contact RESNET at INFO@RESNET.US  

In this milestone episode, Bill Spohn and co-host Eric Kaiser welcome Bryan Orr, the instigat-ORR behind the creation of the Building HVAC Science podcast. They dive deep into the podcast's origin story, reflecting on how Bryan's love for audio and creative expression sparked a wave of content that has deeply impacted the HVAC industry. Bryan shares his journey from audio experimentation as a child to podcasting professionally, highlighting the values of curiosity, passion, and the abundance mindset in both personal and professional life. Bill and Bryan discuss how podcasting has shaped their careers and relationships, emphasizing the joy of connecting with people, sharing knowledge, and leaving a legacy. Bryan lauds Bill's warm, engaging voice and thoughtful approach to podcasting, while Bill credits Bryan for mentoring him into the space. They share insights into the challenges and rewards of consistent content creation and how the show has evolved to explore topics that truly inspire them. Looking forward, Bill envisions a gradual transition, with Eric taking on more of the driving role while Bill continues as a passionate participant. The episode concludes with a plug for the HVACR Training Symposium, an event Bryan leads to connect industry professionals and advance the field. HVACR SCHOOL WEBSITE (Chock full of resources!):https://hvacrschool.com/ HVAC School Podcast: https://hvacrschool.com/podcast/ 6th Annual Symposium: https://hvacrschool.com/events/6th-annual-hvac-r-training-symposium/   This episode was recorded in December 2024.

In this powerful episode of the Building HVAC Science Podcast, hosts Bill Spohn and Eric Kaiser bring on a truly inspiring guest, Danny Huffman, founder of Second Chance University. Danny shares the transformative mission behind his organization, which helps individuals transitioning from incarceration, substance abuse, or homelessness rebuild their lives through HVAC training, life skills development, and career preparation. Danny's passion shines as he recounts his journey, from growing up on a Texas farm to creating a program that changes lives. Listeners will learn how Second Chance University's intensive six-week program provides participants not only with technical expertise but also the mental tools and confidence needed to succeed in life and work. With partnerships from organizations like TruTech Tools, CareerSource, and others, Danny emphasizes the importance of doing the right thing and fostering community safety and success. This episode is a must-listen for anyone interested in workforce development, second chances, or the transformative power of education and mentorship. Here is Danny's Linkedin: https://www.linkedin.com/in/dannyhuffman/ And a link to his website: https://2ndchanceuniversity.org/ And his email: dhuffman@2ndChanceUniversity.org   This episode was recorded in December 2024.

In this episode of Building HVAC Science, Bill Spohn and Eric Kaiser are joined by Ross Trethewey, a mechanical engineer, consultant, and building science advocate who also appears on This Old House. Ross shares his journey from being a fifth-generation plumber to becoming a professional engineer with a passion for high-performance buildings. He discusses the critical interplay between building systems and science, highlighting his work in residential and commercial design through his firm, TE2 Engineering. He also delves into his unique projects, including a World War I lookout tower retrofit, which underscores the importance of holistic building assessments. The conversation transitions into the challenges of translating the wealth of building science knowledge into practical applications. Ross emphasizes the need for a structured approach, like checklists or decision trees, to guide professionals through complex building scenarios. He praises initiatives like Better HVAC, which aim to centralize resources for the industry. Finally, Ross explores the importance of mentorship, shared resources, and ongoing learning, advocating for tools like ACCA Manual J, the Passive House Planning Package to prioritize impactful changes in building performance. Ross' LinkedIn: https://www.linkedin.com/in/rosstrethewey/ Ross' Engineering business:http://www.te2engineering.com/ This Old House on YouTube: https://www.youtube.com/user/thisoldhouse Passive House Planning Package: https://passivehouse.com/04_phpp/04_phpp.htm Our episode with Adam from Heat Geeks: https://www.buildinghvacscience.com/ep176-empowering-engineers-the-heatgeek-approach-to-high-efficiency-heating-with-adam-chapman-july/ Building Science Corporation classes and events: https://buildingscience.com/upcoming-events-and-training Coffee and Caleffi webinars: https://www.caleffi.com/en-us/education/coffee-caleffitm Enrico Bonilauri's Emu hands on classes: https://emupassive.com/training/ Pretty Good House Concepts: https://www.prettygoodhouse.org/ Pretty Good House Book: https://www.amazon.com/Pretty-Good-House-Michael-Maines/dp/1641551658 Our episode on Pretty Good House: https://www.buildinghvacscience.com/ep105-whats-a-pretty-good-house-with-dan-kolbert-and-chris-briley-dec-2022/ Allison Bailes' book: https://trutechtools.com/hardcover-a-house-needs-to-breathe-or-does-it.html BetterHVAC website: www.BetterHVAC.org Our episode with Shawna Henderson of BlueHouse Energy: https://www.buildinghvacscience.com/ep147-building-science-haiku-with-shawna-henderson-november-2023/ HVACR School Symposium: https://hvacrschool.com/events/6th-annual-hvac-r-training-symposium/ Rocky Mountain Institute Green Upgrade Calculator: https://greenup.rmi.org/ The National Institute of Building Sciences: Whole Building Design guide: https://www.wbdg.org/whole-building-design Residential Energy Book by John Kirgger, 7th edition (530 pages):: https://srmi.biz/product/residential-energy/ Residential Energy Book by Krigger & Dorsi, 2004 edition (320 pages):: https://www.amazon.com/Residential-Energy-Savings-Existing-Buildings/dp/1880120127   This episode was recorded in December 2024.

In this engaging Building HVAC Science Podcast episode, hosts Bill Spohn and Eric Kaiser welcome Dr. Allison Bailes, a renowned building science expert, to discuss his ongoing home remodeling journey. Allison shares his firsthand experiences of retrofitting a 1960s ranch home in Georgia, uncovering challenges, lessons, and unexpected discoveries along the way. Allison dives deep into the realities of balancing technical expertise with practical decision-making, from asbestos abatement to air sealing, insulation, and innovative systems like Zehnder ERVs. He highlights the importance of communication with contractors, dynamic environmental factors like radon and air leakage, and the challenges of maintaining performance in existing homes. Throughout the episode, listeners gain invaluable insights into the intersection of building science, project management, and homeowner expectations. Whether you're an HVAC professional, a homeowner, or simply curious about building science, this episode provides a wealth of knowledge wrapped in relatable anecdotes and humor.   Learn more about his business at www.energyVanguard.com and subscribe to his emails. Here is his LinkedIn profile:https://www.linkedin.com/in/allisonabailes/ We sell his book at TruTech: https://trutechtools.com/hardcover-a-house-needs-to-breathe-or-does-it.html   This episode was recorded in December 2024.

In this episode, Bill Spohn reviews the 52 episodes of the Building HVAC Science Podcast. published in 2024. EP# Published Topic Guest(s) 147 1-5-24 Building science hiaku with Shawna Henderson Shawna Henderson 148 1-12-24 Trade Secrets Revealed- Inside Classset, the Platform Building a Blue-Collar Boom with Cooper Newby Cooper Newby 149 1-19-24 More Than Just Fixing Furnaces: Why NCI is the Heartbeat of the HVAC Industry with Dominick Guarino Dom Guarino 150 1-26-24 Filtering the Future - The Journey of John Ellis in Reinventing Air Quality John Ellis 151 2-2-24 From Ice to Inspiration-Highlights at the AHR Expo .docx ELK and Bill 152 2-9-24 Ralph Wolf's HVAC Odyssey Lessons, Laughs, and Legacies Ralph Wolf 153 2-16-24 HVACR Horizons: From 12-Year-Old Prodigies to Industry Pioneers ELK and Bill 154 2-23-24 Closing the Gap AeroSeal's Quest for Net-Zero Buildings Amit Gupta 155 3-1-24 Sustainable Spaces: The Journey from Efficiency to Humanity in Design Lucas Johnson & Austin 156 3-8-24 Inside the Toolbox- Rethinking HVAC with a High-End Twist With Chris Wisniewski Chris Wisniewski 157 3-15-24 Heat Pumps, Homes, and High Tech Amply Energy's HVAC Evolution Ed Fitz, Eric Smith 158 3-22-24 Comfort, Co-ops, and Climate Care Revolutionizing HVAC in Ontario with Victor Hyman Victor Hyman 159 3-29-24 Blueprints to Bytes How Russ King is Redefining HVAC with Technology Russ King 160 4-5-24 From Recovery to Revolution The Jason Julian HVAC Journey with Jason Julian Jason Julian 161 4-12-24 Connecting the Dots HVAC Excellence Conference Highlights and Industry Evolution witj Josh Crawley & Casey Prater.docx ELK, Josh, Casey 162 4-19-24 Inside HVAC: Wes Davis on Codes, Standards, and Shaping the Future at ACCA 2024 Wes Davis 163 4-26-24 Lies, Damn Lies and Manometer Readings Jesse Smith 164 5-3-24 Behind the Scenes at ACCA 2024: A Dialogue with Ed Janowiak Ed Janowiak 165 5-10-24 Blueprints for Efficiency: Enrico Bonilauri's Deep Dive into Building Standards Enrico Bonilauri 166 5-17-24 Simplifying Home Electrification: Insights from Zero Homes' Grant Gunnison Grant Gunnison 167 5-24-24 Tech Meets Trades Wyatt Smith's Mission to Modernize Workforce Productivity Wyatt Smith 168 5-31-24 Unveiling HVAC Mastery A Journey of Skill and Passion Matt Akins 169 6-7-24 From Attics to Airwaves Tony Mormino's HVAC Journey Tony Mormino 170 6-14-24 How to Grow and Scale a Business from the Ground Up Tommy Mello Tommy Mello 171 6-21-24 Random updates from Bill Bill Spohn 172 6-28-24 Tech Trends and HVAC Triumphs: A Denver Summit Recap ELK & Bill 173 7-5-24 Harnessing AI for Healthier Buildings: Insights with Attune's Co-Founder Julien Stamatakis Julien Stamatakis 174 7-12-24 Smart Homes, Smarter Trades: Dan Goodman Discusses Building 36's Innovations Dan Goodman, 175 7-19-24 From Engineering to Sales: Karine LeBlanc on Building Connections in HVAC Karine Leblanc 176 7-26-24 Empowering Engineers: The HeatGeek Approach to High-Efficiency Heating Adam Chapman 177 8-2-24 Smart Tools, Smarter Tech: Jim Bergmann's MeasureQuick Evolution Jim Bergmann 178 8-9-24 From Gopher to Guru: Steven Rardon's HVAC Journey Stephen Rardon 179 8-16-24 The Science of Hot Water: Insights and Innovations with Gary Klein Gary Klein 180 8-23-24 Home Monitoring Madness: Tracking Energy, Air, and More with Bill and ELK ELK & Bill 181 8-30-24 From Drawings to Durability: Inside the Minds of Building Science Experts ELK & Bill 182 9-6-24 Transforming Homes and Training Minds: The Brynn Cooksey Approach Brynn Cooksey 183 9-13-24 Reinventing Wind Power: Inside the World of Harmony Turbines Chris & Cheryl Moore 184 9-20-24 Cracking the Code: Mastering HVAC Design with Manual S Russ King 185 9-27-24 Building Better Homes: Bridging the Gap Between Energy Ratings and HVAC Steve Byers 186 10-4-24 Unlocking Trades: The Power of Skillcat's Mobile Training Ruchir Shah 187 10-11-24 Revolutionizing Home Comfort: Marco Radocaj's Balanced Approach to HVAC Marco Radocaj 188 10-18-24 Young HVAC Prodigy: Elena Day's Journey to EPA Certification at 12 Elana and Jordan Day 189 10-25-24 Breaking the Cycle: Huff's Journey to HVAC Excellence and Industry Change Tom Hoffmaster 190 11-1-24 Breathing Easy: Tackling Outdoor Contaminants in Indoor Spaces Linda Wigington, Rhett Major, Bill Collinge 191 11-8-24 From Building Automation to Smart Homes: The Lumen Cache Revolution Derek Cowburn 192 11-15-24 Building a Legacy: Energy Efficiency and Innovation with Mark Kaiser Mark Kaiser 193 11-22-24 Building Performance with Purpose: Silas Hoeppner's Journey Silas Hoeppner 194 11-29-24 Behind the Scenes at TruTech Tools: Meet Greg Bokan Greg Bokan 195 12-6-24 Farming Ideas vs. Farming The Land: Reflections from Another Continent Bill Spohn 196 12-13-24 EP196 Bill's review of 2024's podcasts BILL Spohn 197 12-20-24 His remodelling work Allison Bailes 198 12-27-24 Using knowledge we have in the real world Ross Trethewey   This episode was recorded in December 2024.  

"The future belongs to those who believe in the beauty of their dreams."  – Eleanor Roosevelt   Welcome to a special episode of RESTalk: "Best of RESTalk 2024"! This year has been transformative for RESNET® and the residential energy efficiency industry. From setting bold goals to launching innovative tools and forming impactful collaborations, 2024 has redefined what's possible in energy efficiency and sustainability. In this episode, we revisit the year's most insightful and impactful moments, featuring highlights from the conversations that shaped the industry. Join us as we dive into the ambitious goal of achieving 1 million RESNET® HERS ratings annually, explore the evolution of new QA tools, and unpack the growing Build-to-Rent housing trend. We'll also reflect on RESNET®'s strides in water and carbon efficiency programs and the game-changing advocacy efforts that have amplified energy efficiency policies nationwide. Below is a table of all the topics in this episode with links to the full podcasts. Reflection on 2024: As we recap the highlights, we celebrate the progress and resilience of the RESNET® community in driving energy efficiency and sustainability. This episode highlights the industry's achievements and innovation, from RESNET®'s ambitious goals and policy wins to groundbreaking tools like the QA app and evolving market trends like Build-to-Rent housing. Looking Ahead: 2025 promises to bring even more exciting initiatives, broader adoption of RESNET® programs, and a collective journey toward achieving 1 million HERS ratings annually. Don't miss the opportunity to engage with RESNET® through upcoming events like the RESNET® 2025 Conference and continued advocacy efforts. Call to Action: If this episode inspired you, revisit the full conversations for deeper insights and ideas. We thank our listeners, guests, and stakeholders for their contributions to an impactful year. Here's to even greater achievements in 2025! Topic & Episode Topic Full Episode link Part A GOALS & MACRO TRENDS     124 Ambitious goals 2028 www.bit.ly/RT-124 124 Stretch goals www.bit.ly/RT-124 128 Defining BTR & HERS Ratings www.bit.ly/RT-128 Part B SOFTWARE & DATA     125 Development of the QA app www.bit.ly/RT-125 134 Purpose and goals for QA App www.bit.ly/RT-134 131 Highlights from the Trends report www.bit.ly/RT-131 132 QA is the backbone www.bit.ly/RT-132 Part C PEOPLE     126 Perspectives on Women in the HERS industry www.bit.ly/RT-126 127 Robert's advocacy experience www.bit.ly/RT-127 127 Carl on how advocacy days are structured www.bit.ly/RT-127 129 Paulette explains her role in outreach www.bit.ly/RT-129 133 Evolution of IECC/HERS Compliance Specialist www.bit.ly/RT-133 130 Preview of the 2025 RESNET Conference www.bit.ly/RT-130   To the RESNET® community, we hear you and want to engage. Learn more at www.RESNET.us. Or for more info on this topic, contact RESNET at INFO@RESNET.US  

In this episode of the Building HVAC Science Podcast, Eric dives into Bill's recent two-week trip to Africa, covering his time in Kenya and Tanzania. The discussion is rich with cultural insights, unique experiences, and lessons in building science. Bill shares his observations of local architecture, sustainability practices, and the warmth of the people he met, all against the backdrop of Africa's breathtaking landscapes and abundant wildlife. The full video presentation will be available shortly on the Trutech Tools YouTube channel:  https://www.youtube.com/@TruTechTools/featured Key highlights include: The distinct climate and seasonal patterns near the equator, where temperatures remained mild (59°F to 85°F) and the length of day varied only slightly year-round. Exploring open-air, sustainable structures designed for natural ventilation and comfort without reliance on modern HVAC systems. Encounters with wildlife, from giraffes and lions to hippos and wildebeests, often seen just steps away from their accommodations. Reflections on cultural humility, local hospitality, and the sharp contrast between rural simplicity and modern amenities. The episode closes with a profound observation from a local guide about life in rural areas versus cities: “In village life, your work sustains you directly (farming crops and livestock), while in city life, your work sustains you financially by farming the ideas in your mind.” This episode was recorded in November 2024.

In this episode of the Building HVAC Science Podcast, hosts Bill Spohn and Eric Kaiser sit down with Silas Hoeppner, a passionate advocate for building performance and HVAC design, to explore his unconventional career journey in the industry.  Silas shares his story of starting in his family's insulation business, transitioning through various roles in energy ratings, HVAC consulting, and contracting, and ultimately finding his niche at Modern Heating and Air Conditioning in Iowa. He details the challenges he faced, such as battling imposter syndrome and the steep learning curve of technical design, while also emphasizing the importance of connecting technical expertise with people-centric solutions. Silas offers valuable insights for technicians, focusing on blending technical know-how with clear, relatable communication to homeowners and stakeholders. He highlights the lasting impact of programs like HVAC SAVE and the evolving importance of addressing comfort, durability, and health in building performance. Silas also shares personal lessons about confidence, mental health, and humor in professional growth, encouraging listeners to embrace their individuality while staying committed to learning. Learn more about Silas here: https://www.linkedin.com/in/silasjames/   This episode was recorded in November 2024.

In this episode of the Building HVAC Science podcast, co-hosts Bill Spohn and Eric Kaiser are joined by Eric's father, Mark Kaiser, for a special father-son discussion. Mark shares his experiences with building and improving a unique energy-efficient home in Carlinville, Illinois. His journey began in the late 1970s, when he retrofitted a modest house to reduce energy consumption using insulation, solar energy, and a variety of unconventional methods. Mark talks about his motivation for energy efficiency, stemming from his role overseeing utilities at Blackburn College, where he gained valuable insights into energy management and building systems. Throughout the conversation, Mark delves into the construction techniques he employed, including double wall construction for added insulation, using solar heat gain, and even creating a thermal mass storage system with water-filled milk jugs to retain heat. He explains how he balanced various heating systems, such as solar, wood, and natural gas, and how his hands-on approach—digging around the foundation, raising the roofline, and using sustainable materials—resulted in a home that remains energy-efficient to this day. The Kaisers also touch on innovative electrical systems, such as 12-volt and 24-volt setups, and how these have helped keep energy costs low. Mark's deep understanding of thermal mass, energy usage, and alternative construction methods highlights the importance of thoughtful, sustainable home design. As the discussion wraps up, Mark reflects on the lessons learned from maintaining and improving his home over the years, emphasizing the ongoing challenges of perfecting energy-efficient construction. The conversation offers listeners a unique blend of family history, practical tips, and a deep dive into the technical aspects of home energy management. The DC Freezer Mark mentioned www.sundanzer.com The paper on the Lo-Cal House may be found here: https://www.ideals.illinois.edu/items/54705   This episode was recorded in October 2024.

Without continual growth and progress, such words as improvement, achievement, and success have no meaning. – Benjamin Franklin In this episode of RESTalk, Bill Spohn speaks with three guests to discuss the RESNET® QA app, an innovative tool designed to streamline the quality assurance process for home energy ratings. Bill is joined by Billy Giblin, RESNET®'s quality assurance field specialist, Kelvin Abong and Kiro Bondarev from The Fourth Dimension (4D), RESNET®'s technology partner. Together, they explore the app's journey from ideation to execution, its role in harmonizing quality assurance efforts, and the benefits it brings to users.   Billy provides insight into the app's development, explaining how it shifts the industry from inconsistent spreadsheet-based reviews to a more transparent, data-driven approach. Kelvin discusses 4D's collaborative efforts to design a user-friendly app and highlights future improvements based on user feedback. Kiro offers technical details describing the app's ability to integrate with external QA tools via an API, ensuring flexibility for providers.   The conversation touches on the importance of industry adoption, the app's intuitive design, and its positive impact. The episode includes exciting news about upcoming features, including cloud syncing and expanded integration with Energy Star. Here is a link to RESTalk EP125, where we first introduced the QA App on this podcast https://restalk.libsyn.com/ep125-qa-in-your-pocket-how-a-mobile-app-is-empowering-resnet-hers-ratings-with-cassandra-wright-leo-jansen-and-billy-giblin   A press release on the RESNET® QA App, including links to download the app: https://www.resnet.us/articles/resnet-launches-new-qa-app-for-resnet-rating-providers-and-qads/   More details on the RESNET® QA App: https://www.resnet.us/about/qa/resnet-qa-app/   To the RESNET® community, we hear you and want to engage. Learn more at www.RESNET.us. Or for more info on this topic, contact RESNET at INFO@RESNET.US  

In this episode of the Building HVAC Science podcast, Bill Spohn and Eric Kaiser welcome Derek Cowburn, founder of Lumen Cache, to discuss his journey from building automation in pharmaceutical facilities to pioneering smart DC power systems for homes and offices. Derek shares how his background in building controls and automation influenced his development of Lumen Cache; a company focused on creating a smart infrastructure that integrates DC power to drive lighting, sensors, and automation. He explains the advantages of DC power, especially as modern buildings transition to solar panels, batteries, and increasingly DC-centric electronics. Derek explores the challenges of mainstreaming smart building technologies, particularly overcoming builders' concerns with reliability, cost, and installation ease. Lumen Cache's innovative modular plug-and-play system simplifies integration for builders and offers adaptability for future technology upgrades, unlike traditional AC systems. Derek also highlights the potential of integrating indoor air quality and energy management sensors, envisioning homes and offices that are "smart from the start" without the need for complex retrofits. Throughout the conversation, Derek discusses his experiences in Shenzhen, China, leveraging the city's manufacturing ecosystem to scale production while planning to expand globally. The episode wraps up with Derek's vision for the future—an interconnected ecosystem of smart devices that support energy efficiency and comfort, driven by Lumen Cache's evolving infrastructure. He invites listeners to explore their new generation product, ReNetA, and looks forward to a follow-up conversation to share future developments. Derek's LinkedIn: https://www.linkedin.com/in/derekcowburn/ YouTube channel:https://www.youtube.com/@LumenCache The System Design Tool Derek spoke of: https://youtu.be/ZCHEFiY5Bf0?si=4oqtf3jObVJEPV4O Website: https://www.lumencache.com/ Company Linkedin: https://www.linkedin.com/company/lumen-cache-inc-lumencache-/about/ Derek's LinkedIn: https://www.linkedin.com/in/derekcowburn/ Contact: https://www.lumencache.com/contact   This episode was recorded in October 2024.

In this episode of the Building HVAC Science Podcast, co-hosts Eric Kaiser and Bill Spohn interview Elana Day and her father Jordan Day, creators of the YouTube channel Little Miss Fix It. At just 12 years old, Elana has achieved remarkable feats, including passing the EPA-608 certification, possibly making her one of the youngest certified HVAC technicians. The conversation highlights Elana's growing interest in HVAC, her passion for science, and how her curiosity and hands-on learning led her to explore technical trades. Elana shares her experience preparing for the EPA certification through a month-long study program, aided by her father and supplemental resources like YouTube. Her keen interest in topics such as atmospheric pressure and vacuum systems reflects her deep engagement with HVAC concepts. Elana also discusses her excitement for future projects, including using her new 3D printer, exploring welding, and continuing hands-on building projects. Jordan, her father, describes how he supports Elana's learning by letting her safely experiment with tools and guiding her through various projects. Both emphasize the importance of encouraging young people to explore trades and follow their passions. The episode concludes with Elana offering inspiring advice to listeners, encouraging them to pursue their dreams and continue searching for what excites them. Jordan Day's Linked: https://www.linkedin.com/in/jordan-day-93590220b/ You can find Elana doing her thing on YouTube at this link https://www.youtube.com/channel/UC1PLmZrxcVu09_rWjy1YkmA  Or by searching for Lil'MissFixIt on YouTube    This episode was recorded in September 2024.

Knowledge is of no value unless you put it into practice. Anton Chekhov   In this episode of the RESTalk podcast, host Bill Spohn talks with Mark Johnson from the International Code Council (ICC) and Steve Baden from RESNET® about a new collaboration to enhance energy code compliance. They discuss the growing complexities of energy codes, particularly the challenge of ensuring compliance amid increasing technical and regulatory demands. To address this, ICC and RESNET® are introducing a program to involve HERS raters as third-party verifiers, providing quality assurance and supporting local code officials, especially where resources are limited.   The conversation delves into the origins and development of this program, which has been over a decade in the making. Steve and Mark describe their journey, starting with joint training initiatives and establishing standards such as the Energy Rating Index (ERI). The latest effort includes certification of RESNET® HERS® raters to act as recognized compliance specialists under the International Energy Conservation Code (IECC). This certification ensures that raters understand building science and are well-versed in energy code requirements, enhancing credibility with code officials.   Mark and Steve emphasize the need for collaboration and transparency in implementing these new compliance measures. They highlight that this partnership helps jurisdictions struggling with limited code enforcement capacity and provides career growth opportunities for HERS raters. The program aims to be fully launched by the end of 2025, with both guests encouraging raters to obtain their certifications soon to position themselves at the forefront of this compliance evolution.   Here's the link to the ICC website with all of the info on the IECC/HERS Compliance Specialist Designation: https://www.iccsafe.org/content/ecs-designation/ Flyer with a quick summary: https://cdn-www-v2.iccsafe.org/wp-content/uploads/ICC_HERSComplianceSpecialist_MessagingToCodeOfficials_infographic-002.jpg.webp   To the RESNET® community, we hear you and want to engage. Learn more at www.RESNET.us. Or for more info on this topic, contact RESNET at INFO@RESNET.US

In the latest episode of the Building HVAC Science Podcast, host Bill Spohn speaks with Ruchir Shah, founder of Skillcat, a mobile training platform for skilled trades. Skillcat offers around 1,500 hours of training in areas such as HVAC, plumbing, appliance and electrical work, and has successfully trained over 300,000 individuals in just three years. Ruchir explains that the platform began as a free resource to make training accessible, eventually transitioning to a subscription model costing $10 per person per month. The app includes comprehensive certification courses and features a unique asynchronous proctoring system for exams, allowing users to take assessments flexibly. Ruchir shares insights into the challenges of building Skillcat, particularly the transition from a free service to a paid subscription, which required careful communication with users. Despite initial apprehensions, the decision has been met with support, contributing to the platform's rapid growth. He emphasizes the importance of user feedback, especially from skilled tradespeople, which has driven continuous improvements and high satisfaction ratings for the app. The conversation also touches on Ruchir's journey into the trades sector, highlighting the surprising interconnectedness within the HVAC industry. Ruchir expresses his commitment to enhancing education and training for tradespeople, believing that the future holds significant opportunities as the industry addresses workforce shortages. He encourages listeners to explore Skillcat, emphasizing the potential for career growth and job satisfaction in the trades. Ruchir's LinkedIn: https://www.linkedin.com/in/ruchirshah2/ SkillCat website: https://www.skillcatapp.com/   This episode was recorded in September 2024.

In this episode of the Building HVAC Science podcast, Bill Spohn and co-host Eric Kaiser welcome Steve Byers from Energy Logic in Colorado. Steve shares his background and discusses his company's focus on energy ratings, sustainability work, and program compliance, such as Energy Star and DOE Zero Energy Ready programs. He explains how Energy Logic operates across Colorado and Hawaii, working primarily in new home construction while also addressing commercial and multifamily projects. Steve highlights the core role his company plays in ensuring that homes are built for optimal energy efficiency, comfort, and sustainability, which many builders may not prioritize due to their focus on completing projects. Steve delves into the challenges faced by energy raters, particularly in the field of new construction. He explains how construction trends and the role of project managers have evolved, with managers overseeing more homes than ever before. This increase has led to greater pressure on quality control and the need for energy raters to ensure homes meet energy efficiency standards. He touches on the disconnect between the work of raters and the awareness of homebuyers, emphasizing that most homebuyers are unaware of the value energy raters bring unless they're educated about the benefits of energy-efficient homes. The conversation shifts toward industry trends, including modular construction and advancements in heat pump technology. Steve expresses excitement about the innovation in the modular off-site construction space and the potential for cost reduction in homebuilding. He also discusses the evolving HVAC standards and the integration of commissioning practices like the ACCA 310, which presents challenges for raters and HVAC companies alike. The podcast closes with a reflection on the importance of communication and collaboration between HVAC professionals, builders, and energy raters to ensure better, more efficient, and comfortable homes. Steve's LinkedIn: https://www.linkedin.com/in/stevebyers/ Steve's email: steve@nrglogic.com Energy Logic website: https://theenergylogic.com/ RaterFest website: https://theenergylogic.com/services-for-energy-professionals/raterfest/   This episode was recorded in September 2024.

In this episode of the Building HVAC Science Podcast, host Bill Spohn is joined by co-host Eric Kaiser and guest Russ King to discuss various aspects of HVAC design, focusing on the complexities and updates to Manual S, a critical document for HVAC equipment selection. Russ King shares his extensive background in building energy modeling and HVAC design, including his journey from traditional HVAC methods to co-founding Coded Energy, a company that developed Kwik Model 3D, a 3D modeling software for load calculations, which has greatly simplified and improved the accuracy of HVAC designs. The conversation delves into the intricacies of Manual S, highlighting how it has evolved to better address modern challenges in HVAC design, particularly with the rise of variable speed equipment and the need for more precise dehumidification strategies. The guests discuss the importance of proper equipment sizing to ensure comfort and efficiency, and they explore how Manual S provides a structured approach to this process. They also touch on the challenges contractors face in following these guidelines, noting that despite the benefits, a relatively small percentage of designs adhere strictly to Manual S due to a lack of awareness or understanding within the industry. The episode concludes with insights into practical HVAC design challenges, such as thermostat placement and the importance of air distribution, emphasizing the need for continuous learning and application of best practices. Both Eric and Russ stress the value of using accurate data and following established guidelines to improve the overall quality and performance of HVAC systems, urging listeners to engage with the math behind the designs and to collaborate with others in the industry to refine their skills. Russ' LinkedIn: https://www.linkedin.com/in/russell-king-m-e-70342913/ Kwik Model 3D website: https://kwikmodel.com Downloadable Manual S: https://www.acca.org/standards/technical-manuals/manual-s SpeedSheets downloads https://www.acca.org/standards/speedsheets/speedsheets-download?submissionGuid=645e594e-00c3-4006-8983-086f39f6fd35 ACCA Approved software: https://www.acca.org/standards/approved-software The Structure and “path” of using ACCA manuals in Residential and Commercial Applications: https://www.acca.org/standards/technical-manuals Overview of Manual S: https://www.viridiant.org/wp-content/uploads/2022/01/Manual-S-Brochure_.pdf Free Online Sizing calulator: https://www.loadcalc.net/sizing.php An Overview of Manual S: https://www.load-calculations.com/what-is-acca-manual-s-.html   This episode was recorded in August 2024.

In this episode of the Building HVAC Science Podcast, hosts Eric Kaiser and Bill Spohn are joined by Chris and Cheryl Moore, the founders of Harmony Turbines, to discuss their innovative approach to wind energy. Chris and Cheryl share the origin story of Harmony Turbines, which started as a personal project in Chris's basement, driven by his desire to create a quieter, more efficient wind turbine that could operate in lower wind conditions compared to traditional propeller turbines. They explain the challenges they faced, particularly in moving from a small-scale DIY project to a legitimate business venture, which included learning about equity crowdfunding and establishing the necessary corporate structures to raise funds. The Moores delve into the technical aspects of their turbines, explaining how Harmony's design differs from traditional wind turbines. They describe it as a modified Savonius vertical axis wind turbine with a unique helix twist, allowing it to capture wind from any direction and self-regulate its speed in high wind conditions by furling its blades. This furling capability, inspired by the yin and yang symbol, sets Harmony Turbines apart, offering a way to protect the turbine from damage while continuing to generate energy. They also discuss the ongoing development of their patented variable air gap generator, which promises greater efficiency but has been challenging to perfect and integrate with the turbine. Towards the end of the discussion, the Moores emphasize that Harmony Turbines is still in the research and development phase, and they are actively raising funds through StartEngine to continue their work. They invite listeners to consider investing in their company, highlighting that even small contributions can help them advance their innovative technology. The episode wraps up with a call to the audience to support or at least learn more about the groundbreaking work being done at Harmony Turbines. Chris' LinkedIn: https://www.linkedin.com/in/creatingmoore/ Harmony Wind Turbines website: https://harmonyturbines.com/ Start Engine investment page: https://www.startengine.com/offering/harmony-turbines Harmony's YouTube: https://www.youtube.com/@HarmonyTurbines Harmony's patent: https://patents.google.com/patent/US10724502B2/en Email address: Support@harmonytrubines.com   This episode was recorded in August 2024.

Quality is never an accident; it is always the result of intelligent effort. John Ruskin     In this episode of RESTalk, host Bill Spohn is joined by Scott Doyle and Ryan Meres from RESNET® to discuss their ambitious goal of achieving one million ratings annually by 2028. The conversation begins with an overview of RESNET®'s significant progress, which recorded 360,000 ratings in 2023—a 136% increase since 2013. The discussion highlights the importance of quality assurance in maintaining the credibility of the HERS rating system, particularly as RESNET® scales its operations and engages more stakeholders.   Scott Doyle, the Managing Director of Quality Assurance at RESNET®, emphasizes the critical role of quality assurance in ensuring consistency and reliability in the HERS rating process. This is especially important as RESNET's® influence grows, necessitating the trust of external stakeholders. Ryan elaborates on how the RESNET® self-funding model, primarily through fees for homes submitted to their registry, has allowed the organization to expand its staff and services since 2017 without relying on government grants.   The episode also explores opportunities to expand HERS® ratings in new and existing home markets. Ryan and Scott discuss how federal tax credits, builder incentives, and new technologies drive interest in HERS® ratings, particularly among large national production builders. They also touch on the potential for growth in the existing homes market, especially among companies that manage large portfolios of older properties. The conversation concludes with a call to action for HERS® raters to build capacity in anticipation of the growing demand for energy, water, and carbon ratings and energy codes services and a reminder of the importance of attending the upcoming RESNET® conference to stay informed and connected in the industry.   Link to the 2025 RESNET® Conference: https://whova.com/web/O69mUZ3%40Ukqwwk5w4pS%40yN-VrNyD68R4WHS7uRqUeos%3D/ To the RESNET® community, we hear you and want to engage. Learn more at www.RESNET.us. Or for more info on this topic, contact RESNET at INFO@RESNET.US      

In the recent episode of the Building HVAC Science Podcast, hosts Eric Kaiser and Bill Spohn welcome Brynn Cooksey, the owner of Air Doctors Heating and Cooling. Brynn, who is deeply involved in the HVAC industry and building performance, shares his journey from growing up in a family-run HVAC business to becoming an influential figure in the industry. He recounts how his early exposure to the field through his parents' business and subsequent work with a utility company helped shape his career. Brynn emphasizes the importance of continuous learning and the significant impact organizations like the Refrigeration Service Engineers Society (RSES) have had on his professional development. Brynn discusses his transition from a traditional HVAC service model to a more comprehensive home performance approach, influenced by his training in building science. He explains how his company now incorporates advanced diagnostic tools and techniques, such as blower door tests and combustion analysis, to offer more holistic and energy-efficient solutions to their customers. Brynn's dedication to building science and performance has led to his company rebranding and expanding their services to include shell modifications, insulation, and air sealing. The podcast also highlights Brynn's efforts in workforce development through his training organization, HVACU, which addresses the shortage of skilled workers in both HVAC and building science. Brynn's involvement with educational initiatives like HeatSpring and his role in a new software venture, Pearl Edison, demonstrate his commitment to advancing industry standards and training the next generation of HVAC professionals. His emphasis on proper training, communication, and the use of advanced technology underscores his approach to business and his contributions to the industry. Brynn's LinkedIn: https://www.linkedin.com/in/brynn-cooksey-sr-cem-cms-1968a72a/ Byrnn's website: https://www.airdoctorshvacservice.com/ HVACU: https://www.hvactrain.com/ PearlEdison: https://www.pearledison.com/ HeatSpring learning:https://www.heatspring.com/ Brynn's courses at HeatSpring: https://www.heatspring.com/courses?query=brynn&button= GoldmanSachs 10,000 Small Businesses Program that Both Byrnn and Bill took part in: https://10ksbapply.com/ BSP: Building Science Principles: The Certificate: https://bsp.bpi.org/portal/bsp/ The Book: https://trutechtools.com/BPI-BSP-GUIDE   This episode was recorded in July 2024.

In this episode of the Building HVAC Science Podcast, Bill Spohn and Eric Kaiser discuss their recent experiences at industry events, particularly the Westford Symposium on Building Science, also known as Building Science Summer Camp. They reflect on the event's unique blend of technical presentations and social interactions, highlighting the presentation by Keith Simon on the longevity of building designs and the importance of balancing aesthetics with functionality. The discussion emphasizes how architecture should prioritize craft and function to ensure the longevity and sustainability of buildings. Eric also shares his insights on another compelling presentation by Steve Baczek, who stressed the importance of clear communication in architectural drawings. Baczek's approach underlines the necessity for architects to convey their intentions precisely to ensure that contractors can execute designs effectively. This conversation leads to a broader discussion on how crucial it is for the HVAC industry to embrace detailed and thoughtful design practices to improve system performance and occupant comfort. The episode concludes with a look at the social side of these events, where industry professionals from around the world gather to exchange ideas and experiences. The hosts emphasize the value of continuous learning and engagement within the industry, encouraging listeners to seek out educational opportunities and resources to stay informed and improve their professional practice. Eric's LinkedIn:https://www.linkedin.com/in/eric-kaiser-323a1563/ Bill's LinkedIn: https://www.linkedin.com/in/billspohn/   Building Science Corporation link to Summer Camp Slides: https://buildingscience.com/past-events   This episode was recorded in August 2024.

In this episode of the Building HVAC Science Podcast, hosts Bill Spohn and Eric Kaiser engage in a lively "duo cast" discussing the various measurements they take in their homes and the reasons behind them. They start the conversation by reflecting on their recent episode with Gary Klein, which inspired Eric to set up a data logging system to monitor hot water temperatures in his home. This leads to a broader discussion about the different tools and devices they use to track energy consumption and efficiency, such as the Emporia Vue energy monitor, which helped Bill identify a faulty installation in his heat pump system. The hosts delve into their personal experiences with various smart home devices, including air quality monitors from Airthings, radon monitors, and even an innovative weather station called Tempest. They share insights on how these devices have provided valuable data, helping them make informed decisions about their home's energy use and indoor air quality. Bill highlights his use of an ERV system that runs based on CO2 levels. At the same time, Eric discusses his plans to upgrade his home's ventilation and dehumidification systems using the Haven air quality monitor. Toward the end of the episode, Bill and Eric discuss their use of fitness trackers, discussing the metrics they monitor for personal health. Bill also mentions his latest acquisition, a Bluetooth meat probe, which he plans to use to perfect his grilling techniques. The episode wraps up with the hosts emphasizing the importance of integrating monitoring tools into everyday life to enhance comfort, efficiency, and well-being and inviting listeners to reach out for more information on the products discussed. Contact us at bill@trutechtools.com LinkedIn: https://www.linkedin.com/in/billspohn/ ekaiser@trutechtools.com LinkedIn: https://www.linkedin.com/in/eric-kaiser-323a1563/ The spray foam attic ping pong effect: https://www.energyvanguard.com/blog/high-humidity-in-a-spray-foam-attic-part-2/ Products we mention in this podcast: HAVEN IAQ monitors: https://trutechtools.com/haven Airthings Radon CO2 and more: https://trutechtools.com/Airthings Emporia Circuit Power Monitors and EV Chargers: https://www.emporiaenergy.com/ CERV2: Bill's Conditioning ERV that uses a CO2 sensor to decide when to run: https://buildequinox.com/ Home weather station: https://shop.tempest.earth/products/tempest Security cameras: Eric's:  https://www.eufy.com/eufycam#navimenu_4_copy Bill's: https://www.wyze.com/products/wyze-cam EcoQube Radon: https://ecosense.io/products/ecoqube Aranet COs monitor: https://aranet.com/products/aranet4-home Meater Bluetooth cooking thermometer: https://store-us.meater.com/products/meater-plus Kardia portable 6 lead EKG: https://store.kardia.com/products/kardiamobile Apple watch for fitness: https://www.apple.com/watch/ Home Automation: https://www.home-assistant.io/   This episode was recorded in July 2024.

In this episode of the Building HVAC Science Podcast, hosts Bill Spohn and Eric Kaiser are joined by Gary Klein, a veteran in the field of energy conservation, particularly in hot water system design. The discussion begins with Klein explaining his innovative teaching method, using tape on the floor to illustrate the distances between water heaters and home fixtures. This method helps participants understand the time it takes for hot water to reach different parts of a house. Klein emphasizes the importance of efficient hot water system design, criticizing common practices that prioritize aesthetics over functionality. The conversation then shifts to Klein's experiences and contributions to right-sizing plumbing systems, highlighting the inefficiencies in current standards based on outdated data. He discusses the development of the water demand calculator, a tool that more accurately estimates peak water demand and leads to more efficient pipe sizing. Klein provides examples of how modern buildings can significantly reduce their water supply infrastructure needs, using real data to support the argument for updating plumbing codes and practices to reflect contemporary water use patterns. In the final segment, Klein shares personal anecdotes from his extensive career, including his time in Lesotho, where he implemented solar energy solutions. He reflects on his work in the United States, promoting the adoption of air-source heat pump water heaters and continuing to lead efforts in right-sizing plumbing systems. Klein also touches on his teaching philosophy, advocating for practical, evidence-based approaches to plumbing and energy conservation. The episode concludes with Klein urging industry professionals to integrate modern technologies effectively and to consider real-world usage patterns in their designs. Gary's LinkedIn: https://www.linkedin.com/in/gary-klein-b112592/ Gary's website: https://www.garykleinassociates.com/ IAPMO Water Demand Calculator: https://www.iapmo.org/water-demand-calculator/   Larry Weigarten's books mentioned in the episode: The Water Heater Workbook: A Hands-On Guide to Water Heaters: https://a.co/d/g2vN6rt The Philosopher's Wrench: Using Your Creativity, Heart & Tools to Fix the World: https://a.co/d/7zmtq5A     This episode was recorded in July 2024.