Podcasts about heat pumps

Is there a collaboration problem in retrofit within the social housing sector? That was the premise for this conversation with Rafe Bertram, an architect and retrofit expert—appearing in a personal capacity—who was very surprised when I posed the question because he's found collaboration to be a strength in the sector, at least in London.In the end it led to a conversation about what he's learned from the experiences he's had working on retrofits in the social housing sector, in his community, and even doing big flashy Apple stores.The most interesting bit though is the strategy he's using to reduce the cost of retrofit, with his theory of reactive planning. It's an approach that takes a systematic integrated asset management approach and adds strategic opportunism into the mix in a way that enables him to piggyback essential works, like roof replacement, and use them as a catalyst for getting into a building to do the sustainability stuff that's usually a lower priority.Notes from the showRafe Bertram on LinkedinRetrofit Kentish Town The Good Homes Alliance websiteRafe's finance report for the Good Homes Alliance — “The Green Shift – The existing financial incentives for higher environmental performance of new homes” (October 2023) More links to articles about green building, favourable finance, and better valuations:Homebuyers pay a ‘green premium' of up to £40,000 for the most energy efficient properties (September 2021)—Lloyds Banking GroupHalifax includes EPC ratings in maximum lending calculationsHalifax to use EPC rating in affordability calculationsOctopus reducing interest rates for finance capital: 4 criteria = 1.25% discount, 6+ criteria = 2.00% discount**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this podcast, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Retrofit Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

Send us a textNathan is joined by Christopher Taylor at Vital Energy, Richard Barwick at RJ Barwick and Russell Murchie at Nusku to discuss how innovation through the Heat Pump Ready projects has improved heat pump technology and the ease of installation of heat pumps in difficult to decarbonise homes, the impact this could have on the market, and what future innovation is still needed.NEWS FLASHThe Guild of Master Heat Engineers is coming. Read more here and sign up to the newsletterSupport the showLearn more about heat pump heating by followingNathan on Linkedin, Twitter and BlueSky

The UK's push toward net zero has dramatically improved building insulation and airtightness. But there's an unintended consequence that could prove dangerous: overheating. As climate change brings more extreme heat to Britain, these highly insulated homes risk becoming dangerously hot without adequate cooling strategies.In this episode, co-founder Martin Wood explores climate resilience in residential design with Helen Hough and Pablo Gugel from our sustainability team. With Pablo's Spanish perspective on Mediterranean design principles, they examine how the UK can adapt its housing for a hotter future without resorting to energy-intensive air conditioning.The conversation covers everything from cultural shifts in thermal comfort expectations to the massive challenge of retrofitting millions of existing homes. They explore whether government intervention is necessary given the scale of the problem, and question whether we're modeling future climate scenarios or simply ignoring the risks ahead.A thought-provoking discussion about designing for the climate we're actually going to live in, not just the regulations we need to meet today.Timestamps: 0:00 Introduction - The perfect storm facing UK housing 3:00 Mediterranean lessons: shading and cultural adaptation 8:00 Thermal comfort expectations vs climate reality 15:00 Retrofit priorities: walls, glazing, or energy supply? 25:00 The density problem: underoccupied housing 35:00 Government intervention vs individual responsibilitySend us a textTo learn more about Bryden Wood's Design to Value philosophy, visit www.brydenwood.com. You can also follow Bryden Wood on LinkedIn.

Send us a textIn this episode, Paul, Bryn and Sean discuss some of the common heat pump myths or misconceptions, and what actually makes them untrue.The METUS Tech Show will now have limited Video Recorded Podcasts on Youtube. This will allow us to provide visual aids to the various topics discussed on the show. Episodes with [VIDEO] in the title will be available for viewing.Check out the METUS Training Network to watch the METUS Tech Show, as well as many other helpful videos!Thanks for listening! Please visit www.mitsubishicomfort.comContact us at metustechshow@hvac.mea.com

Kiwis have racked up more than a billion dollars in green loans for energy efficient items like EVs, solar panels, and heat pumps. BNZ, ASB, and ANZ all lend up to $80 thousand on a 1% interest rate over three years. Massey University Banking Expert Claire Matthews says these are small loans, meaning the banks are pumping them out, while not actually lending a huge amount. She told Mike Hosking customers still have to go through the same process as loans with higher interest rates, and go through affordability checks. LISTEN ABOVE See omnystudio.com/listener for privacy information.

  The Green Impact Report Quick take: 16-year heat pump water heater evangelist Gregg Holladay reveals how homeowners can slash energy costs by $400+ annually, why May 2029 changes everything for 50% of American homes, and his "proactive replacement" strategy that turns water heater failures into profitable opportunities. Meet Your Fellow Sustainability Champion Gregg Holladay is Business Development Manager for Specialty Markets at Bradford White, where he champions heat pump water heater technology across residential and commercial markets. The industry's only 16-year veteran of heat pump water heaters, Gregg introduced America's first Energy Star-rated unit while at GE in 2009. A sustainability pioneer who built his first energy-efficient home 33 years ago on a Kentucky farm, he's known for translating complex technology into compelling financial stories—like how homeowners can save $400+ annually while achieving 420% efficiency. Gregg teaches contractors nationwide that water heaters are evolving from "failure replacement" to proactive upgrades that actually pay for themselves.

Messing with water heaters sounds like something that professionals who typically deal with hard wiring and electrical work would much rather avoid. However, in today's increasingly connected home, where every system appears to interact and communicate with one another, water heaters are becoming smarter. Here, we chat with Cala Systems Co-Founder and CEO Michael Rigney about the company's forthcoming smart heat pump water heater, how it's changing the game from an efficiency standpoint, and the role he hopes custom integrators can play in getting their product into more consumers' homes, quickly. https://youtu.be/QiPSVg9i3gw

This episode is all about case study in circularity and a group of people turning waste into useful materials for the built environment. Daniel Dinizo and Charmaine Cu-Unjieng of NaturLoop are bringing a new bio-based product to market that transforms waste coconut husk into a material that's something between MDF and a particle board.For us, this presented a chance to talk about how sustainable materials are developed, the challenges of bringing them to market and how responsible businesses can approach supply chain development (the big challenge now). As professionals who work with LCAs, EPDs, and carbon calcs all the time it was refreshing to get into a product that will have an impact that can be accounted for in human terms, as well as the usual economic and environmental terms. They're also fundraising right now, so here's the pitch from Charmaine.NaturLoop at the Final Stage of Pre-Seed Funding"NaturLoop, the Swiss–Philippine climate-tech startup behind Cocoboard, is at the final stage of its pre-seed round. Cocoboard is the first industry-ready fibreboard made entirely from coconut husk waste and natural adhesives—a truly biocircular material. Featured at Interzum Cologne 2025, Cocoboard embodies the shift in construction and furniture toward biocircularity—no longer a trend but the future of materials. Europe's sustainable furniture market is set to more than double to $42.6 bn by 2032, with consumers paying around 10% more for sustainable products. NaturLoop is closing its round soon, inviting strategic investors to co-build a climate-positive business that reduces deforestation and uplifts poor coconut farmers—making the industry more future-proof."Notes from the showCharmaine Cu-Unjieng on LinkedinDaniel Dinizo on Linkedin NaturLoop on Linkedin The NaturLoop websiteA short film about Cocoboard®An investor CTA from CharmaineAn example of Cocoboard in use as a speaker box for a Schwab System**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this podcast, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Retrofit Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

Heat pumps are the EVs of HVAC—so why aren't we all using them?Stephen Lake, a highly successful engineer turned climate-tech entrepreneur, is here to explain why heating and cooling is the most overlooked piece of the decarbonization puzzle.After selling his last company to Google, Stephen founded Jetson to tackle one of the biggest—and slowest-moving—sectors of home energy: HVAC. From cold-weather performance to noise, he busts the myths about heat pumps and outlines why they haven't hit mass adoption in North America.Spoiler: it's not the tech. It's everything else—price, friction, contractors, complexity.Expect a crash course in sector disruption, including Jetson's decision to build everything in-house and cut install costs by half through full-stack operations. If Tesla built HVAC, it'd look like this.

Join Journal Technical Editor Rebecca Matyasovski and Alexander Butkus as they discuss the advantages of heat pumps over natural gas furnaces, highlighting energy savings and cost benefits.

Send us a textJoin Nathan on this episode of BetaTalk as he sits down with Olly Cutting, Johann Kühns, and Pranjal Arya from HomeTree. The team from HomeTree shares their incredible journey, from a boiler installation company to a multifaceted energy services provider. We learn how Olly and Pranjal's economic backgrounds, combined with Johann's expertise in Climate Change management and finance from Imperial College London, have shaped their innovative, data-driven approach.The Customer Journey FlywheelThe conversation centers on HomeTree's innovative business model, structured around a "customer journey flywheel" with three key divisions:Home Cover: Offering service plans for boilers and heat pump installations, rivaling big players like British Gas.Renewable Installations: Specializing in the installation of solar, battery, and heat pump systems.Renewable Financing: A crucial division that helps customers overcome the significant upfront cost of new energy systems, making the transition more accessible.This flywheel model ensures that customers are supported at every stage of their energy transition.A Different Approach to AcquisitionNathan and his guests discuss HomeTree's unique strategy of acquiring local SME's (Small and Medium-sized Enterprises), like the respected IMS Heat Pumps Ltd led by Emma Bohan. They explore why this approach is so beneficial for both HomeTree and the acquired businesses. HomeTree's data revealed that customers prefer working with local installers, and this acquisition model allows them to scale while maintaining a personal touch.Beyond TechnologyThe discussion also highlights that the move to renewable energy isn't just a technological change; it's a behavioral shift for customers. Nathan shares his thoughts on how the Guild of Master Heat Engineers can collaborate with HomeTree to help both the company and its customers navigate this transition, building on the great conversation they started over dinner.

Join us for an informative webinar where we'll explore Carrier® Crossover Solutions—an innovative approach that combines the strengths of traditional ducted heating and cooling with the versatility of ductless technology. This session will delve into how our systems are designed for compatibility with residential fan coils and furnaces, ensuring effortless integration with your current HVAC setup.Learning Objectives:Discover consumer trends in sustainable and high efficiency products in the homeLearn about Carrier's latest heat pump technologyTake a deep dive of Carrier's Crossover heat pump product lineUnderstand crossover heat pump applications

According to a recent study by McKinsey, the heat pump market is expected to grow by more than 15% annually, especially in the food and beverage industry, where they are increasingly being incorporated into refrigeration systems. Industrial heat pumps use electricity as their fuel source instead of coal or gas, and they have the potential to be powered by completely renewable energy. Marc Gieseking, head of renewable energy solutions at Güntner, joins From the Cold Corner to discuss how heat pumps can be used in the cold foods industry.

Send us a textOn this episode, Paul, Steve and Bryn talk with Chris and Brent about the 2025 U.S. Heat Pump Summit at the DCU Center in Worcester, Massachusetts. They talk about the presenters, speakers, and exhibitors attendees can expect. They also talk cheese curds and brontosaurus ribs.Also, listeners of the show are provided with a discount code for registration. To register, visit: https://www.usheatpumpsummit.com/Thanks for listening! Please visit www.mitsubishicomfort.comContact us at metustechshow@hvac.mea.com

In this episode we are exploring the relationship between financial institutions and the built environment in relation to sustainability, building performance and mitigating climate change with Ian Bhullar and Ronnell Reffell from UK Finance, the UK financial sector's membership organisation.The episode itself was prompted by a report that UK Finance published in relation to the incoming UK Government's own Warm Homes Plan: Greening Homes, Creating Growth: Unlocking demand for green home finance. Its recommendations will be familiar to anyone who has been working in the green building sector but it's notable because these arguments and demands are being presented by the banks and lenders.For us this presented an opportunity to find out what the finance sector is actually thinking about how to address the demands of the built environment in relation to climate change and the financial risk that comes with it. Most importantly, they're serious about the matter—this is not ESG-style fluff, they know they need to draw in expertise from built environment professional and they want to know what people like you think.Notes from the showIan Bhullar on LinkedinRonnell Reffell on Linkedin The UK Finance website The report itself—Greening Homes, Creating Growth: Unlocking demand for green home finance**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this podcast, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Retrofit Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

An uptick in heat pump use could ease pressure on the energy system and cut costs. A report by the New Zealand Green Building Council reveals if more households opt for heat pumps, it could save Kiwis more than a billion dollars a year. It's also revealed this could protect thousands of industry jobs, with three mills closing in the last year due to soaring energy prices. Green Building Council CEO Andrew Eagles says more heat pumps in the country will reduce these demand pressures for the gas sector. He told Mike Hosking they've got an opportunity to free up gas from a sector that doesn't need it. LISTEN ABOVE See omnystudio.com/listener for privacy information.

More heat pumps in households could cut energy bills by a total of $1.5 billion a year. A report by the New Zealand Green Building Council has found replacing gas and electric heaters with heat pumps could save 40% of gas produced, each year. It's also revealed this could protect thousands of jobs, with three mills closing in the last year due to soaring energy prices. Energy Efficiency and Conservation Authority's Richard Briggs told Ryan Bridge heat pumps are about 3.5 times more efficient than a resistive heater. He says the upfront cost is quite expensive, but they are significantly cheaper to run. LISTEN ABOVE See omnystudio.com/listener for privacy information.

Send us a textJoin Nathan this week for an exclusive episode recorded live from the Qvantum HQ in Sweden! Nathan sits down with a team of true industry heavyweights to discuss the future of heating solutions for multi-occupancy dwellings.In this insightful conversation, Nathan is joined by his good friend and a titan of the European heat pump sector, Thomas Nowak. As the former General Secretary of the European Heat Pump Association for nearly 18 years, Thomas shares his unparalleled knowledge of how Europe is tackling the challenge of heating decarbonisation.We also speak with Philip Ord, Qvantum's Managing Director, and Darren Manley, the technical expert behind Qvantum's innovative solutions. The discussion delves into the intricacies of their offering, exploring the dual benefits of heating and cooling, the critical issue of overheat protection, and the technical innovations that make their systems ideal for multi-residential buildings.This episode is a must-listen for anyone interested in the technical and strategic side of decarbonisation, from on-the-ground installers to policy makers. Tune in to hear from a leading company in the space and get a unique perspective on the European journey to a cleaner heating future.This season is being sponsored by Intergas... check out their xylinder, a cylinder designed for heat pumpsSupport the showLearn more about heat pump heating by followingNathan on Linkedin, Twitter and BlueSky

It's been a while! Buildings + Beyond host Robb Aldrich is back with a quick update on a new (and free!) video series for anyone who wants to learn how to install an air-source heat pump. The post Mini Episode – Listen Before You Install Your Next Heat Pump appeared first on Steven Winter Associates, Inc..

Will ICF foundations burn? Do modern materials destroy old houses? Do heat pumps peter out in hot temperatures? Can you prevent rain from coming in gable vents? Grant and Mike help Patrick address FHB Podcast feedback and answer listener questions. Tune in to The FHB Podcast 696 to learn about these and other topics.    Tune in to Episode 696 of the Fine Homebuilding Podcast to learn more about:  Preventing house fires through smart design Is there a drop in heat pump performance in very hot conditions Is there a way to prevent rain from coming in gable vents  Have a question or topic you want us to talk about on the show? Email us at fhbpodcast@taunton.com.     ➡️ Check Out the Full Show Notes: FHB Podcast 696 ➡️ Learn about the 2025 Fine Homebuilding Summit ➡️ Follow Fine Homebuilding on Social Media:   Instagram • Facebook • TikTok • Pinterest • YouTube  ⭐⭐⭐⭐⭐  If you enjoy the show, please subscribe and rate us on iTunes, Spotify, YouTube Music, or wherever you prefer to listen.

Roger visits the Pipelife Academy in Cork, Ireland, to discuss heat pumps and renewable energy technology with Mike Geary.

We're joined by our new friends from Building Atlas, Nick Taylor and Olga Khroustaleva, who join us for a conversation about commercial retrofit—the non-residential kind. They've got a data driven business Building Atlas that helps commercial asset owners to plan pragmatic retrofit pathways for commercial real estate.This isn't just important because of how much energy the non-residential sector consumes, it's also because 70% of non-residential building assets are on course to become stranded assets because of their EPC rating and MEES regulation.They are simplifying a complex problem into something that's comprehensible—aggregating experience (and data) to give broad brush stroke direction that's useful. They've also published a paper about retrofit strategy for commercial buildings: The Beauty in Boring Buildings: The Business Case for Retrofit Beyond Flagship Assets.Notes from the showNick Taylor on LinkedIn Olga Khroustaleva on LinkedIn The Building Atlas website Their recent paper — The Beauty in Boring Buildings: The Business Case for Retrofit Beyond Flagship AssetsUK Government MEES guidance — Non-domestic private rented property: minimum energy efficiency standard - landlord guidance**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this podcast, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Retrofit Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

In this episode of the HVAC Know It All Podcast, host Gary McCreadie is joined by Jamie Kitchen, an HVAC expert, Training and Account Manager at Danfoss, to talk all about TX valves for heat pumps. Jamie breaks down how these valves work in both heating and cooling modes and why they need to handle refrigerant flow in two directions. They discuss the parts of a TX valve, how pressure and temperature control the flow, and why Danfoss uses stainless steel in their design. Jamie also explains how proper installation helps prevent common issues and why external equalizers are important in many setups. It's a must-listen for anyone working with heat pumps. Jamie Kitchen from Danfoss joins Gary to talk about TX valves used in heat pumps. Jamie explains how these valves control refrigerant flow when switching between heating and cooling. He breaks down how the valve parts work together, using pressure and temperature to open and close. They also talk about why heat pumps need special valves, and how check valves help flow in both directions. Jamie explains why Danfoss uses stainless steel bulbs and tubes to stop leaks and handle rough conditions. It's a helpful talk for techs who want to understand heat pump valves better and install them correctly. Jamie explains how TX valves in heat pumps work like traffic lights for refrigerants, letting it flow the right way in heating or cooling. He shows how the valve uses pressure from a sensing bulb, a spring, and the coil to open or close. Jamie and Gary talk about why using an external equalizer helps the valve work better, and how check valves let refrigerants move both ways. Jamie also shares why Danfoss uses stainless steel parts; they last longer and don't break or leak. It's a smart guide for techs who want to understand these valves and avoid system issues. Expect to Learn: How TX valves work in both heating and cooling modes. Why heat pumps need valves that flow in both directions. How pressure and temperature control valve opening and closing. Why using an external equalizer helps the valve feed right. How stainless steel parts make the valve last longer and stay leak-free. Episode Highlights: [00:44] - Introduction to Jamie Kitchen - Part 01 [02:02] - What Makes Heat Pumps Different: Reversing Valve Basics [04:48] - How TXVs Work: Refrigerant Flow & Check Valve Role [06:25] - TXVs in Southern U.S. vs. Cold Climate Installations [10:36] - Why External Equalizers Help TXVs Feed Properly [16:05] - The Three Forces in a TXV: Bulb, Spring & Evaporator Pressure [19:23] - What's Inside the Bulb? Refrigerant Mix for Better Control [22:07] - Why Danfoss Uses Stainless Steel for Bulbs & Tubes This Episode is Kindly Sponsored by: Master: https://www.master.ca/ Cintas: https://www.cintas.com/ Supply House: https://www.supplyhouse.com/ Cool Air Products: https://www.coolairproducts.net/ property.com: https://mccreadie.property.com Follow the Guest Jamie Kitchen on: LinkedIn: https://www.linkedin.com/in/jamie-kitchen/ Danfoss: https://www.linkedin.com/company/danfoss/ Follow the Host: LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/ Website: https://www.hvacknowitall.com Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/ Instagram: https://www.instagram.com/hvacknowitall1/

Andy Cam and Todd Glister look into a range of incentives and routes into the Clean Heat market for those of you considering joining. Andy brings a new training centre to light in his home town of Sheffield. There's information on an iniative to give Installers a Heat Pump to play with in their own home and there's a look at why some training might be failing those looking to join. Guests include: Sarah Stevens, Aira Academy Manager, Oliver Zanetti, NESTA Senior Mission Manager & Lewis Litherland (Heat Geek)

Running 24/7 or one short blast? Dr Gareth Gretton, a Lead Advisor at the Energy Efficiency and Conservation Authority joins Emile to settle the (relatively) age-old question.

The great Mr. Fix-It, Lou Manfredini, joins John Williams to tell us the projects we need to be working on this week. Lou talks about his recent remote with our landscape expert Bob Bertog, what a heat pump does, and what you should be doing to take care of your established plants. Listen to HouseSmarts Radio on WGN each […]

The great Mr. Fix-It, Lou Manfredini, joins John Williams to tell us the projects we need to be working on this week. Lou talks about his recent remote with our landscape expert Bob Bertog, what a heat pump does, and what you should be doing to take care of your established plants. Listen to HouseSmarts Radio on WGN each […]

Roger visits the Pipelife Academy in Cork, Ireland, to discuss heat pumps and renewable energy technology with Mike Geary.

The great Mr. Fix-It, Lou Manfredini, joins John Williams to tell us the projects we need to be working on this week. Lou talks about his recent remote with our landscape expert Bob Bertog, what a heat pump does, and what you should be doing to take care of your established plants. Listen to HouseSmarts Radio on WGN each […]

Send us a textReturning guest Steve "Wheels" Wieland joins the fellas but this time with a new title—Director of National Accounts for Ariston USA Heating. (But we all know him from NTI Boilers.) Steve talks being on the precipice for hydronics, heat pumps, beer brewing and Thirsty Thursdays.The For The Pro® app is available for both iOS and Android devices through the Apple and Google app stores, download it today!Subscribe to the Appetite for Construction podcast at any of your favorite streaming channels and don't forget about the other ways to interact with the Mechanical Hub Team! Follow Plumbing Perspective IG @plumbing_perspective Follow Mechanical Hub IG @mechanicalhub Sign up for our newsletter at www.mechanical-hub.com/enewsletter Visit our websites at www.mechanical-hub.com and www.plumbingperspective.com Send John and Tim your feedback or topic ideas: @plumbing_perspective

Send us a textRhiannon and Nathan discuss the recent Installer Show 2025 at Birmingham NEC, covering current trends within the heating industry, including issues related to training.This season is sponsored by Intergas Support the showLearn more about heat pump heating by followingNathan on Linkedin, Twitter and BlueSky

In this episode Rose Chard joins us to describes her multilayered and multi textured approach to innovation and research. It's a conversation about Energy Systems Captapult's experiment in prescribing heating to keep people warm—that's pretty much it, but there was a lot to talk about.Notes from the showRose Chard on LinkedInThe Inclusive Smart Solutions project that Rose mentionsWarm Home Prescription® Insights and Impact Report (July 2024) by Energy Systems CatapultWarm Home Prescription recommended by 93% of health professionals in latest trial (September 2023) by Energy Systems CatapultOne of the papers Jeff mentioned: Occupant Interactions and Effectiveness of Natural Ventilation Strategies in Contemporary New Housing in Scotland, UKThe other one: Ventilation and Indoor Air Quality in Part F 2006 Homes (BD 2702) from 2010**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this podcast, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Retrofit Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

In this insightful episode, Bill and Eric are joined by Abhi Katamneni from Efficiency Canada and Nate Adams, also known as the House Whisperer, for a wide-ranging conversation on the future of home performance, policy, and how HVAC contractors can play a central role in the electrification and decarbonization of housing. Abhi shares lessons from his ride-alongs with contractors across North America, emphasizing how real-world experience shapes policy that actually works. Nate dives into his shift toward consumer education and the systemic problems he's observed in program design and incentives. Together, they unpack how well-meaning policies can backfire when they disrupt the natural rhythm of contracting businesses—highlighting the urgent need for smarter, more contractor-centric approaches. They discuss “boundary spanners,” the unintended consequences of top-down mandates, and why the HVAC service truck is ground zero for climate solutions. Both guests call for immersion, experimentation, and communities of practice to move from boutique success stories to scalable change. Some quotes from the Episode: “The brain can't absorb what your butt can't endure.” – Abhi “If you're not building something shovel-ready for contractors, what are you even doing?” – Abhi “A heat pump isn't just green—it's better. More comfort, less noise, fewer regrets.” – Nate Nate's LinkedIn: https://www.linkedin.com/in/natethehousewhisperer/ Abhi's LinkedIn: https://www.linkedin.com/in/akantamn/ Boundary Spanners podcast: https://open.spotify.com/show/1OunercMNOjZ3poROcI5Z4 Nate's website where  you get free downloads or the book: https://www.natethehousewhisperer.com/ ACEEE: https://www.aceee.org/ Efficiency Canada: https://www.efficiencycanada.org/   This episode was recorded in June 2025.  

In this episode of the HVAC Know It All Podcast, host Gary McCreadie talks with Drew Tozer, an energy advisor and Partner at Foundry Heat Pumps, and Expert Advisor at Building Decarbonization Alliance and Jouleia, about heat pump systems and how to make homes more comfortable. They discuss common problems like hot and cold rooms, the myths around heat pumps, and why right-sizing equipment matters. Drew explains how heat pumps have improved and how to pick the best one based on home size, ductwork, and local climate. They also cover hybrid setups, electric backups, and simple tips to avoid overworking systems and keep indoor air comfy and efficient. Drew Tozer explains how many homes have rooms that are too hot or too cold because of wrong HVAC sizing. He shares why heat pumps are a smart fix when sized right and how older myths make people avoid them. Drew says most homes don't need gas backup and that hybrid systems help when ductwork or power panels are limited. Gary shares job stories showing how right sizing and good planning improve comfort. They both agree that knowing a home's needs and choosing the right system can lower costs, save energy, and keep homes more comfortable year-round. Here, Drew explains how many HVAC systems are too big for the home, which causes hot and cold spots and short run times. Like using the right shoe size, right-sizing heat pumps helps keep comfort steady. He says heat pumps now work well even in cold places, and hybrid setups help when ductwork or power is limited. Gary shares how proper installs and load checks made big comfort changes. They remind techs that smaller, well-planned systems run better, save energy, and avoid problems like noise, bad airflow, and early breakdowns. Expect to Learn: Why do many homes have hot and cold rooms year-round? How oversized HVAC systems cause poor comfort and airflow. Why modern heat pumps often don't need a gas backup. How hybrid systems help when ducts or power are limited. Why right-sizing saves energy and makes homes feel better. Episode Highlights: [00:00] - Intro to Drew Tozer in Part 01 [02:07] - Modern Heat Pumps Don't Need Gas Backup [04:49] - Why load calculations are key for heat pumps [05:45] - Hybrid setups for duct and power limitations [09:25] - Oversized cooling and moisture issues explained [11:37] - Real loads vs. guessed loads in HVAC installs [13:32] - Choosing the best size heat pump for ductwork [16:58] - Panel upgrades vs. staying with gas backup [19:39] - Fixing hot/cold rooms with the right equipment sizing

Andy Cam and Todd Glister are joined again by Damon Blakemore to talk in depth about heat pumps. Damon talks about how he got trained, what he thinks could be improved about the way we train and install heat pumps and where heat pumps are heading from here.

On the phone-in: Barry Walker and Eric Murphy provide advice to listeners about cooling and heating systems like heat pumps. And off the top of the show, we hear from a landlord on PEI whose property has been damaged by tenants. She wants to have them evicted. We also hear about Saint John City Council's vote on the expansion of the Spruce Lake Industrial Park.

I spoke with Brent Davidson, the Creator of the US heat Pump Summit which will be held in Worcester Massachusetts on November 18th and 19th of 2025 and again in September of 2026. Brent saw an opportunity to develop a niche conference that is gaining momentum alongside the push to electrify our homes. The aspirations of this summit have grown to not only tackling the technical side of air and water heat pumps but also the business opportunities that are arising quickly from the tremendous growth and interest. The summit will have a full track for owners and managers of businesses addressing issues like growth, sales and marketing, employee training, and managing that age-old question of working in the business or on the business. The Summit will also host presentations and conversations with regulators, rebate providers and implementers, energy industry experts, members of the private equity investment community, and a full exhibitor hall.  If you are working within the world of Heat pumps or just interested, the US heat pump summit might just be the place to go this November.  Brent Davidson on LinkedIn US Heat Pump Summit brent@heatpumpsummit.org

Dean dives into the world of heating and air-conditioning in 2025. He breaks down HVIC systems, heat pumps, and clears up the confusion around California's heat pump mandates. Dean also explores uneven cooling in homes, how system controllers can balance room temperatures, and why frequent A/C cycling impacts power consumption. Plus, tips on finding a great HVIC installer and why changing your filter every 90 days really matters.

Send us a textIn this episode Nathan chats to his friend Ian Edgeworth, author of the recent books "Wellcome to the Wonderful world of Air source Heat Pumps - What Kept You"  and "The Pocket Guide to Low Temperature Central Heating" You can find the books at New Perspectives.ComListen to Ian's journey into teaching and what he and Nathan think of the current situation regarding heat pump training.This season is being sponsored by Intergas who make the quality xylinder - a heat pump cylinderSupport the showLearn more about heat pump heating by followingNathan on Linkedin, Twitter and BlueSky

The Future of Geothermal. What is it and how does it play out? The recent report by the IEA with the aforementioned title "The Future of Geothermal" goes into detail on the past, present and future of geothermal, new technologies, startups, oil and gas crossover, and so much more. It is well worth a read, but in the meantime, I sat down with Heymi Bahar, a senior analyst with the IEA to talk about the report in detail, giving a view into what the future may indeed hold for this amazing resource - the heat beneath our feet.  Heymi Bahar https://www.linkedin.com/in/heymi-bahar/IEA https://www.linkedin.com/company/international-energy-agency/posts/?feedView=allHeymi's Book Recommendation The Perfectionist: Life and death in Haue cuisine by Stephen Chelminski Nick Cestari https://www.linkedin.com/in/nick-cestari-48059268/CORE Knowledge https://www.linkedin.com/company/core-geothermal

In a slight departure from our usual building performance themes joining us for this episode we have Richard Muscat, a man who has experienced the world of investment and tech from a fascinating range of angles and is seeking ways to do things differently.In essence, we're looking at the way venture capital and climatetech are organised in ways that aren't conducive to delivering the impact that's promised. We're not just picking on VCs, we're using them as a means of highlighting a bunch of systemic economic issues—chief among them is how unrealistic goals for growth (in its myriad forms) almost always leads to failed impact. Perversely, it's a bug in the impact investment space that's a feature of the broader investment system.We also get into concepts of degrowth and economic biodiversity.Good Homes Alliance eventLaunch event of our a best practice guide to ‘Water Efficiency and Reuse in Housing' on Thursday 10 July.Notes from the showRichard Muscat on LinkedinThe Untangled websiteRichard's recent LinkedIn post that we mentionThe Project Drawdown websiteHuman flourishing doesn't require perpetual growth; it requires sufficiency, by Jason HickelSmarter Finance 4 EU — the project Jeff's been working on and promoting because green home certification is about not just energy use, or IAQ, etc, but how residents live their lives once they leave the front door i.e. nature + cycling + public transport + climate resilience etc. all matter**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Retrofit Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

In this episode of the HVAC Know It All Podcast, host Gary McCreadie talks with David Rames, Senior Product Manager at Midea America, about how Multi-zone Ductless systems work and where they fit best. David explains why they're great for homes without ductwork and how each room can have its own comfort setting. They break down how the system runs, including how it uses one outdoor unit for many indoor units. Gary and David also cover installation tips, design tricks, and how to avoid wiring mistakes. Plus, they share real-world advice on mounting units to reduce noise and making sure systems run smoothly and last longer. David Rames explains why Multi-zone Ductless systems are a smart choice for homes without ductwork. He shares how one outdoor unit can run many indoor heads, giving each room its own comfort level. David also talks about how the system adjusts refrigerant flow to match the needs of each zone. He explains why line sets and wiring must be carefully planned and how a special feature can fix mistakes if zones are mixed up. David gives tips on placing the outdoor unit to avoid noise, and how knowing these small things helps the system work better and keeps customers happy. Here, David explains how Multi-zone Ductless systems give better comfort by letting each room set its own temperature. Like having light dimmers, people can control heat or cool just where they need it. He talks about how one unit sends refrigerant to all zones and why installers must size and wire things right. David also shares how a smart feature can fix wiring mistakes fast, but it's still best to fix it right later. He reminds techs that placing the outdoor unit in the right spot helps avoid noise and keeps the home peaceful. Expect to Learn: Why Multi-zone Ductless is great for homes without ductwork. How one outdoor unit runs many rooms with custom comfort. Why line sets and wiring need careful planning and setup. How a smart feature can fix wiring mix-ups in a pinch. Why unit placement matters to keep noise levels low. Episode Highlights: [00:00] - Intro to David Rames in Part 01 [01:16] - Shoutout to past episode and HVAC Nationals competition [03:28] - What is a Multi-zone Ductless System? [05:46] - Room-by-room comfort with zone control [07:15] - How refrigerant flows and the system modulates [08:44] - Outdoor Expansion Valves Explained [12:10] - Key install tips for wiring and line sets [15:56] - Smart fix for wiring mistakes with Synchro [17:58] - Using Synchro Connect as a quick fix for wiring mix-ups [19:38] - Outdoor Unit Mounting Best Practices

Send us a textThe latest episode of BetaTalk dives deep into a topic of critical importance for the future of skilled trades and green technology: the intricate world of Vocational Training Qualifications (VTQs) and how they stack up against General Qualifications (GQs).Host Nathan Gambling, always at the forefront of heating and skills discussions, explores a key differentiator in VTQs: the expectation that ALL learning outcomes must be truly mastered for a qualification to be awarded. This isn't just about passing an exam; it's about demonstrating genuine competence.What makes this particularly "interesting," as Nathan highlights, is the unique assessment model. Unlike GQs, the assessment for VTQs is largely devolved to the training centre, rather than solely residing with the awarding organisation (AO). However, here's the kicker: the AO remains fully responsible and accountable for the quality and integrity of the qualification itself.This creates a fascinating dynamic. On one hand, it makes it incredibly straightforward to independently assess whether individuals have genuinely mastered every single learning outcome. If something's amiss, it's very easy to trace accountability back to the awarding organisation.This conversation takes on even greater significance when we consider the millions of taxpayer pounds currently funding crucial qualifications, such as those for heat pump installations. With significant public investment, ensuring that these qualifications genuinely produce competent professionals is paramount.Tune in to the latest BetaTalk episode to understand the implications of this assessment model, the responsibilities of AOs, and why robust VTQs are essential for building a skilled workforce, especially in vital sectors like renewable heating.This season is sponsored by IntergasSupport the showLearn more about heat pump heating by followingNathan on Linkedin, Twitter and BlueSky

With the innovative inverter heat pump, not only did you get to enjoy superior heating and cooling performance under extreme weather, but also saving energy and money. Sponsored by Midea.

In this episode we're talking about Zero Bills Homes, so we welcome back Nigel Banks, this time accompanied by his Octopus colleague Emma Fletcher*.We're not directly talking Fabric Fifth again but the concept is central to the Octopus zero bills strategy i.e. prioritising decarbonising energy use and reducing the cost of energy use rather than focusing on reducing energy demand through fabric measures. As before, basic fabric standards are required in order to make the proposition financially viable.As you might imagine, Jeff was keen to dig into the technical and performance side, so Nigel explains what's going on in the standard and what they know about how well it's functioning and Emma fills us in on how it's shaping up to evolve into a building standard in its own right. We're particularly keen because—although we might be sceptical, which we discuss—the action that Octopus is initiating will raise standards and will shape expectations that will influence the whole residential construction sector, and could go some way to catalysing the bridging of the skills gap.*She, too, works at Octopus Energy—she is not an actual octopus.Notes from the showNigel Banks on LinkedinEmma Fletcher on LinkedinThe Octopus Zero Bills proposition in their own words The Octopus Tenant Power propositionNigel Banks' addressing the embodied carbon question on LinkedIn Link to The Octopus Energy Tech Summit (23rd June)The Fabric Fifth ZAP episode from last year**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Retrofit Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

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.  

​Grant Gunnison is the founder and CEO of Zero Homes, a Denver-based firm that specializes in electrification of homes in Colorado, Minnesota, Illinois, and California. Grant gave up his post-MIT work at NASA and returned to Colorado to run his family's construction business, shifting its focus to tackle climate change. He recognized the need to decarbonize some 60 million American homes, with 4 - 5 measures per home. What he did then was revolutionize the retrofit process, uncovering efficiencies to drive down costs and to boost the customer experience. Grant, an enthusiastic soul, has clearly been a beneficial disruptor!Zero Homes is unique in many ways: Its primary focus is on electrifying homes... their space and water heating, cooking, etc, to help solve the climate crisis. He works to upgrade electrical panels to make homes ready for heat pumps, EVs, and solar systems. Of note, Zero Homes has reformed the front end of all construction processes... the process of bidding on construction jobs. Zero Homes provides interested parties with an online tool. It gives homeowners some homework... wiping out the inefficiency of multiple firms coming to the property to analyze and compete for opportunities for jobs and savings.Grant came up with the business model after working on his family's construction business. Free quotes cost all contractors and their customers time and money. By using Zero Homes' online tool, homeowners take photos and videos of their home and provide other pertinent data Then Zero Homes builds a 3D model of the home and identifies and prices measures for decarbonization. Zero Homes collapses the sales cycle; it also provides the design and quality assurance services. As a licensed general contractor, Zero Homes maintains a roster of vetted subs who complete the installations. Zero's process is faster and more efficient, and the result is projects that cost ~10% less while improving both the contractor and customer experience.

If refrigerant, the key substance inside a heat pump leaks into the atmosphere, it can warm the planet thousands of times more than CO2. The Possibly team does the math to see if that risk outweighs the climate benefit of heat pumps.

John reminds the Podcast that not too long ago FHB magazine commonly had fireplace ads. Michael thinks bionic arms can help with drywall sanding. Austin asks for advice on building brick steps. Alex wonders if a ground-source heat pump is right for his new house. George asks about a foundation for a greenhouse.   Tune in to Episode 686 of the Fine Homebuilding Podcast to learn more about:  Will forgoing a fireplace sacrifice marital bliss Where you can learn more about brick steps in FHB The pros and cons of ground-source heat pumps  Shallow foundations for outbuildings Have a question or topic you want us to talk about on the show? Email us at fhbpodcast@taunton.com.     ➡️ Check Out the Full Show Notes: FHB Podcast 686 ➡️ Sign up for Fine Homebuilding All Access ➡️ Follow Fine Homebuilding on Social Media:   Instagram • Facebook • TikTok • Pinterest • YouTube  ⭐⭐⭐⭐⭐  If you enjoy the show, please subscribe and rate us on iTunes, Spotify, YouTube Music, or wherever you prefer to listen.

In this episode, I chat with Kathy Hannun of Dandelion Energy about ground-source heat pumps, which are twice as efficient as air-source units but still more expensive up front. Dandelion has designed its own drills and heat pumps, and with a new 1,500-home partnership with a developer in Colorado, it's looking to scale up and bring costs down. This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe