Podcasts about heat pumps

Send us Fan MailWe explore the challenges and lessons learned from installing new heat pump systems, including a detailed account of a failed project. We discuss equipment selection, troubleshooting, and the realities of integrating innovative technology into residential heating and hot water systems.Chapters00:00 Introduction to New Technologies in HVAC02:44 Challenges with New Equipment Installations05:21 Case Study: Air to Water Heat Pump Installation08:00 Understanding System Limitations and Performance10:44 The Importance of Proper Equipment Selection13:35 Learning from Past Experiences16:16 Customer Expectations and Communication18:58 Technical Challenges and Support Issues20:16 Navigating Equipment Challenges23:11 Customer Communication and Solutions26:14 Innovative Heating Solutions29:49 Quality of Equipment and Manufacturing33:19 Understanding Heat Pump PerformanceSend us your feedback or topic ideas over on our social channels!Eric Aune @mechanicalhub Andy Mickelson @mick_plumbNewsletter sign up: https://bit.ly/MH_email

On the phone-in: Barry Walker & Eric Murphy answer listeners' questions about heat pump systems. And off the top, we speak with Ken Hynes about Sergeant Norman Harold McLennan from Cape North, Cape Breton. He has now been identified as the previously unknown soldier buried in a grave in Courcelette British Cemetery in northern France.

Energised Futures, Centrica's in-house research and innovation incubator, has partnered with Panasonic in a new pilot designed to advance intelligent heat-pump control. Demonstrating how collaboration across manufacturers, installers and technology innovators can accelerate the shift to smarter, more efficient low carbon heating. Heat Pump Trial The research has explored the automation and optimisation of heat pumps in Dublin homes as part of an EU funded Horizon-2020 programme – the DEDALUS project – to develop user-centered demand side response (DSR) systems. By combining technical innovation from Energised Futures with Panasonic's manufacturing expertise alongside local installer partner Mos Mechanical's on the ground installer insight, the project reflects the full lifecycle of heat pump deployment. Energised Futures is creating bespoke digital twins for all participating homes and remotely controlling each Panasonic heat pump with predictive algorithms to deliver optimum comfort and efficiency. Building on the success of its earlier MESH project, funded by the Department of Energy Security and Net Zero, the team has developed advanced control algorithms to enable the Panasonic heat pumps to participate in Demand Response. The system prioritises heating the home and hot water tank when electricity is cheap and low-carbon, while preserving occupant comfort: reducing heat pump operating costs and emissions and simultaneously supporting grid balancing and integration of renewables. Insights from the Dublin trial will feed directly into complementary pilots in Austria, Denmark, Italy, Spain and Romania, helping to build a holistic understanding of how smart heating and flexibility solutions work across different climates, housing types and energy systems. The overall programme wrapped at the end of April, following which the combined results from Dublin and the other EU pilots will be analysed and shared. Ben Krikler, PhD, Head of Energised Futures and Director of Research & Innovation, Centrica, emphasised the opportunity ahead: "Heat pumps have incredible potential, but that potential isn't being fully realised" "By combining advanced controls, predictive algorithms, and real-world data, we can make heat pumps smarter, more efficient, and more rewarding for households by delivering comfort at the lowest running cost while also helping to balance the grid and reduce emissions." Underscoring the wider benefits of the project, Laurence Cox, Country Manager for Panasonic Heating & Cooling Ireland said: 'This project highlights the real-world benefits of heat pump technology, from reduced energy costs and improved comfort to lower carbon emissions. We are proud to be working alongside Centrica and MOS Mechanical to help underline the growing importance of proven, low-carbon technologies in supporting the transition to a more sustainable built environment." The pilot adopts a user-centric, co-creation approach to understand what drives or hinders participation in demand response, including factors such as comfort, data privacy, and energy literacy. Supported by a robust social science framework and drawing on behavioural science, motivation theories, and socio-economic insights, the project actively involves participants through workshops, segmentation analysis, and interface testing. MSM Renewable installed the heat pumps and worked directly with participating households, giving them practical support and helping ensure the trial reflected real-world installer and customer experience. Reflecting on the trial, Mick O'Shea, Founder & CEO of Mos Mechanical's said: "Heat pumps are evolving quickly, and projects like this make sure installers stay ahead" "Hands on experience with the latest systems gives us the confidence to show customers how efficient heat pumps really are. It also proves that when the industry works together, the technology delivers more for households — and opens new opportunities for installers." As the progra...

https://engleservicesheatingandair.com/blog/hvac/bham_heat-pump-service-in-birmingham-al-cost-reviews-and-best-companiesCurious what heat pump repairs really cost? From $150 fixes to $2,800 compressor jobs, we break down pricing, the $5,000 replacement rule, maintenance tips, and how local humidity impacts your system's performance. Engle Services City: Sylacauga Address: 40300 U.S. 280 Website: https://engleservicesheatingandair.com/

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/subscribeBoiling water to make steam for industrial processes consumes an enormous amount energy around the globe, yet it has proven remarkably resistant to electrification. In this episode, I talk with Addison Stark of AtmosZero about why replacing the standard fossil-gas boiler requires an entirely new approach to industrial heat pumps. We discuss the engineering behind his high-temperature system, the challenges of scaling up, and the growing imperative to get free of global LNG markets.

This week on the podcast, Jackie and Peter are joined by Marcus Rocque, Vice President of Research at the ARC Energy Research Institute. This episode focuses on how the oil and gas shock from the closure of the Strait of Hormuz is reshaping the outlook for clean energy, including how governments are rationing oil and gas use through policies such as work-from-home measures and lower speed limits. There is already evidence of increasing sales of alternatives, including EVs, heat pumps, and electric cookstoves. The shortage, however, is also expected to increase demand for coal as an alternative in countries like India and China, which have abundant domestic resources that provide energy security. The podcast discusses whether this could change long-term demand for oil and gas and the implications for Canada. They also consider some of the latest news in Canada, including last week's visit to Ottawa by IEA Executive Director Fatih Birol, and reports that the federal government is proposing to reverse the order of environmental approvals, allowing cabinet to green-light projects prior to the completion of technical assessments and approvals, along with implementing a maximum one-year review period. Finally, Premier Danielle Smith also traveled to Ottawa last week and left with a confident message about the delivery of the MOU.Content referenced in this podcast:Globe and Mail, “Canada should accelerate new energy infrastructure as market shifts, IEA chief says” (May 4, 2026) Latitude Media, Jigar Shah, “This isn't demand destruction. It's rationing.”  (April 24, 2026) Premier Danielle Smith's post on X regarding her positive meeting with Prime Minister Mark Carney on the MOU agreement (May 8, 2026) FT, Spencer Dale, “Why the Iran war might not spur a faster transition to low carbon energy” (May 4, 2026) Please review our disclaimer at: https://www.arcenergyinstitute.com/disclaimer/ Check us out on social media: X (Twitter): @arcenergyinstLinkedIn: @ARC Energy Research Institute Subscribe to ARC Energy Ideas PodcastApple PodcastsAmazon MusicSpotify 

We are joined by Ian Pritchett of Greencore Homes to talk about his science-based approach to green building and the work that has led him from developing green building materials becoming the co-founder of a vertically-integrated developer and house builder.There's a lot of history and legacy to cover because Ian has been in the green building game for decades and it's this that has informed the approach being taken right now.Greencore is also challenging the Passive House Institute about the accuracy of its PHPP (passive house planning package) modelling software because their homes outperform the model's predictions because of their use of phase-change materials.Be warned, this is nerd business—Jeff gets to interrogate the build up specification—but it doesn't get too technical to be able to follow the thread.Notes from the showThe Greencore Homes website Ian Pritchett on LinkedIn A PH+ article about Neil May**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 Fan MailThe UK heat pump sector is entering a new phase. In this episode, we speak with senior leaders from the newly formed Association, created by merging three major industry bodies (Ground Sorce Heat Pump Association, Heat Pump Federation and Heat Pump Association) into a single, unified voice: The Heat Pump Association UKWe explore why this merger happened, what it means for installers, manufacturers, and homeowners, and whether heat pumps are finally ready to scale across the UK. From policy challenges to consumer misconceptions, this conversation breaks down the real barriers in the race to decarbonise heating.Support the showLearn more about heat pump heating by followingNathan on Linkedin, Twitter and BlueSky

The Government is looking at providing one-off payments for energy saving home upgrades such as heat pumps and efficient cars to help households become less reliant on fossil fuels amid the current global fuel crisis. Philip Hannon, chief executive of the Alliance for Zero Carbon Heating, and Muireann Lynch, senior research officer at the ESRI, join The Last Word to discuss the latest proposals being considered by Government.Catch the full chat by pressing the 'Play' button on this page!

On the phone-in: Eric Murphy and Barry Walker provide listeners with advice on heat pumps and other heating and cooling systems. And off the top of the show, we hear about changes that are coming in the Maritimes to Agropur Dairy Cooperative plants. And we also hear about a special meeting on crime in Moncton.

Join Rebecca Norris and Paul Raymer as they discuss practical tips for contractors and consumers alike to make informed decisions about residential heat pump systems.

New England has some of the highest electricity prices in the country. But this past winter, 140,000 households in Massachusetts got a break on their bills because they have a heat pump.

We take a look at the state of the green building sector through the lens of itss biggest dedicated show in the UK, Futurebuild. It on 12–14 May this year and you can sign up here.Helping us to peek behind the curtain is the event's director, Martin Hurn, a man who is, ultimately, responsible for it all.It seemed with a conversation because this year Futurebuild was acquired by a new owner and repackaged to become a super event. The green building great big networking event has merged with UK Construction Week and the Stone and Surfaces Show. In light of this we get into the history of Futurebuild that sheds a little light on how the impact of changes that it's going through right now are a little more like a return to its roots.The episode has a bit of a long wind up because we've included a chunk of preamble in which Jeff explains his background to Martin which wasn't intended for the episode but it ended up revealing similarities, and differences, in their backgrounds that felt worth including. Both Martin and Jeff have been in this working within the business of the built environment for about the same amount of time (early 00s), and both coming from publishing backgrounds. They've seen the heydays, boom times, and catastrophes created by the Celtic Tiger and the UK's solar subsidisation and feed-in tariffs. Consequently, the pair of them are able to offer a some illuminating and interesting perspectives on where they see the sector at this strange point in time.We also let Martin plug the show.And, at the end we do get around to asking ‘how sustainable are events?'Notes from the showRegister with Futurebuild 2026 for your event passThe Futurebuild website Martin Hurn on LinkedIn **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**   

Buckle up, because we're not just talking about building codes today; we're also taking a peek behind the curtain at some exciting projects happening on the Around the House Show. From a brand-new studio space that's about to become the hub of creativity to the nitty-gritty of construction updates, we're on the brink of something big! Imagine a space where DIY dreams come to life—not just through audio but also visually! We're crafting a place where our listeners can actually see the magic happen. And speaking of magic, let's not forget the hilarious and slightly terrifying recall of male-to-male extension cords that could turn your home into a real-life horror movie. Seriously, who thought that was a good idea? Tune in as we navigate the wild world of home improvement with a sprinkle of humor and a dash of caution—it's the perfect recipe for your midweek listen!Takeaways:Building codes are evolving across the U.S., so keep an eye on your state's regulations to avoid surprises.Oregon's new mandate requiring energy-efficient heat pumps is a game-changer for new home construction.We're working hard on a brand new studio space for the show, complete with video capabilities—stay tuned!Safety recalls are no joke: a recent male-to-male extension cord recall highlights the importance of being cautious with home products.Our podcast is gearing up for some exciting guests and stories, so make sure you don't miss out!With tax season upon us, remember to file those returns or extensions to avoid any government headaches!Links referenced in this episode:cpsc.govwalmart.comaroundthehousehqCompanies mentioned in this episode:WalmartBissellParkrose HardwareFloor and DecorConrad LumberThanks for listening to Around the house if you want to hear more please subscribe so you get notified of the latest episode as it posts at https://around-the-house-with-e.captivate.fm/listenIf you want to join the Around the House Insider for access to the back catalog, Exclusive Content and a direct email to Eric G and access to the show early https://around-the-house-with-e.captivate.fm/support We love comments and we would love reviews on how this information has helped you on your house! Thanks for listening! For more information about the show head to https://aroundthehouseonline.com/Information given on the Around the House Show should not be considered construction or design advice for your specific project, nor is it intended to replace consulting at your home or jobsite by a building professional. The views and opinions expressed by those interviewed on the podcast are those of the guests and do not necessarily reflect the views and opinions of the Around the House Show.Mentioned in this episode:Subscribe to the podcast Make sure and Subscribe on your favorite podcast player or the link below! Podcast Subscribe 2026

Send us Fan MailNathan chats to his friend Ricky from Thoroughflush about water quality in UK heating systems. Ricky leads the way in helping domestic heating engineers prevent corrosion in their boiler and heat pump wet heating systems. As well as discussing the VDI 2035 method of keeping heating systems clean they two chat about Ricky's own heat pump installation. It's a bit similar to Nesta's 'Start at Home' scheme. Support the showLearn more about heat pump heating by followingNathan on Linkedin, Twitter and BlueSky

Discover the latest advancements in smart home technology, featuring insights into Matter support, room-specific heating solutions, and the future of connected devices — all with expert commentary from industry insiders. This week, Mary-Ann Rau joins, CEO of Merino Energy who has launched the very first heat pump to support Apple Home.Key Topics:The significance of Philips' new TV acting as a Matter endpoint and what that means for smart home control.The rise of room-specific heat pumps, exemplified by Merino Energy's innovative, compact, and affordable heat pump with Apple Home integration.The debate over native Apple Home support versus Matter standards in smart devices, and the importance of ecosystem interoperability.Practical showcases of new smart home tools, such as Home Mapper app for device analysis and firmware insights.The strategic approach of companies like Acara, Reolink, and Merino in supporting open standards and proprietary integrations.Send me your smart home questions and recommendations with the hashtag #SmartHomeInsider. Tweet and follow your host at:@andrew_osu on Twitter@andrewohara941 on ThreadsEmail me hereSponsored by:CleanMyMac: Get Tidy Today! Try 7 days free and use my code SMARTHOME for 20% off at https://clnmy.com/SMARTHOME.Smart Home Insider YouTube ChannelSubscribe to the Smart Home Insider YouTube Channel and watch our episodes every week! Click here to subscribe.Links from the showPhilips Amblight TVCyberModStudio TV revealHomeMapper Testflight beta signupAqara W200 written reviewAqara W200 videoHeat pump weekMerino Energy on launching a heat pumpPreorder Merino Heat Pump MonoThose interested in sponsoring the show can reach out to us at: andrew@appleinsider.com

EPISODE QUOTES "Anyone can install a heat pump, but if you don't understand how houses work, you're gambling with comfort."   "Our intake process is a pre-screen. We want customers who already want the heat pump." "Electrify everything is cute. Electrify efficiently is the job."   In this episode of the Building HVAC Science Podcast, Bill Spohn and Eric Kaiser talk with Larry Waters and Alex Sloan of Electrify My Home, a Bay Area contractor focused on efficient home electrification. Larry walks through his 43-year path in the trade, from early technical training and commercial HVAC work to residential, where he kept running into the same puzzle: systems that "worked" but didn't deliver comfort. A turning point came through BPI training and the building-science lens, which shifted his work from fixing equipment to fixing houses, and eventually led him to launch an electrification-only company when retirement plans and COVID reshuffled the deck.   Alex shares his own route, coming from incentive programs and building-science work, then meeting Larry as a homeowner customer, and later joining to help build business development and operations. Together, they describe an accidental but very real "visionary and integrator" pairing (EOS style), and how that partnership shaped a business model that prescreens customers: detailed online intake, a virtual assessment first, and an onsite visit only after budget alignment. Their goal is to spend time with people who already want the solution, not those who need convincing.   They dig into what "electrify efficiently" means in practice: load calculations on every job, job-type checklists, and designing around modulation, not just peak capacity. They also get candid about challenges, especially California utility pricing, old, leaky homes, and tricky heat pump water heater installations with space and wiring constraints. A standout concept is the "Watt diet," which plans electrification so homeowners can often avoid panel upgrades by using smarter equipment choices, circuit sharing, and load management. The episode closes with a clear takeaway from both guests: installing heat pumps without understanding houses, envelopes, and electrical realities is a recipe for disappointment. They also tease a future follow-up episode focused entirely on the history of electrification in the U.S. Regarding the National Home Performance Conference: New Contractor Discount - $825 - HVACSCIENCE Unique URL for your Show: http://nhpc26.org/building-hvac-sci Alex's LinkedIn: https://www.linkedin.com/in/alexjsloan/ Larry's LinkedIn: https://www.linkedin.com/in/larry-waters-31677b19/ Their company website: https://electrifymyhome.com/ Electrify Academy course calendar:https://emhlearn.com/calendar/?mcat=4# Electrify My Home YouTube Channel: www.youtube.com/@electrifymyhome      This episode was recorded in February 2026.

Wondering if heat pumps really work in Canadian winters? The answer might surprise you, especially when you see the numbers on efficiency and savings. Go to https://www.customcomfort.ca/home-heating/heat-pump-installation/ for more information. Custom Comfort ClimateCare City: Barrie Address: 61 Patterson Road Website: https://www.customcomfort.ca/

Send us Fan MailThis episode of Betatalk features Will Rivers, associate director of residential decarbonisation at the Carbon Trust and Madeleine Gabriel, Sustainable Futures Mission Director at Nesta.We discuss the Department of Energy Security and Net Zero's funded Heat Pump Ready Programme which was part of the Net Zero Portfolio (NZIP) and ran from 2021-2025.The collaboration, evaluation and knowledge of this programme was managed by Carbon Trust who used the BetaTalk podcast to help share information. Heat Pump Ready 2 will start soon and Nathan's guests talk about the kind of innovation we might see.  Support the showLearn more about heat pump heating by followingNathan on Linkedin, Twitter and BlueSky

What is social value? It's a messy, ill-defined beast that's increasingly a core component of public procurement, and it's something that we worked on recently so it's been front of our minds.We invited Michael McLaughlin (LHC Procurement Group) onto the show to talk through what he thinks about social value, and what he thinks it could be if the sector was able to organise itself better. No shade intended and we're not suggesting that it's easy to fix things, but we have looked into it. While there's a lot of great work being done there are an unconscionable number of opportunities being wasted, and not for want of trying.Notes from the showMichael McLaughlin on LinkedInThe LHC Procurement Group website LHC on LinkedIn **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**

This week's episode is the first ever two parter!This was supposed to be an episode on home retrofit, and I'm chatting to SaraG Grimes from Bath and West Community Energy about some of the brilliant work that they're doing, and what people can do in their own homes.This first part is looking bigger picture and is quite a wide ranging chat! We cover community energy generally, as well as hearing about some of the specific projects that BWCE are working on; solar; heat pumps; the UK government's Warm Homes Plan; and support for renters amongst other things.In the second part (available to listen to now!) we look more specifically at home retrofit and some of the lower cost retrofit measures available, like draught proofing and insulation.I'm very aware that both of those potentially sound more than a little dull and dry as podcast episodes, but I really hope that they're interesting and useful! Do let me know!There we go - I did warn you it was quite a wide ranging chat, but I really hope it was interesting and there were some nuggets there that you can take away.Part 2 is much more focussed on home retrofit, and some of the lower tehc, more affordable options, and should be available to listen to now if you want to dive straight in, or save that particular treat for another day!Thanks so much for listening - do let me know any thoughts, comments or questions from this episode, amd I'll catch up in Pt 2Sara Grimes LISTEN... USEFUL LINKS:Sara Grimes- Linked InBath and West Community Energy (BWCE)- Website- Community benefit- BWCE home energy plans and surveys (for people in the Bath area)- Green Heritage Homes- Linked In- Facebook- InstagramCommunity Energy EnglandCommunity Energy ScotlandCommunity Energy WalesCommunity Energy Northern Ireland[112] - Community Energy with Brighton Energy Co-op[135 ] - The local electricity bill with Steve Shaw (lots of community energy chat in this episode!)Green Open Homes networkVisit a Heat PumpWarm Homes Plan- On the UK government website- Which explainer articleFind energy grants for your home (UK gov)Energy grant helpline: 0800 0987950Boiler upgrade scheme (for heat pumps)Find an energy certificate (EPC)Historic England - Energy efficiency and retrofit in historic buildingsHeat GeekEnergy Saving TrustCentre for Sustainable EnergySustainable(ish) Clubhouse - doors opening again soon!Carbon Literacy- Carbon Literacy with me!

On the phone-in: Heat pump experts, Barry Walker and Eric Murphy, take questions from listeners. And off the top of the show, we speak with the CBC's Jacques Poitras about bill 23 which didn't pass in the New Brunswick legislature yesterday.

Lucy Lyons of Kestrix joins us this week to talk about their use of drones, infrared imaging, and AI to quicken the pace of retrofit surveying. Specifically, with regard to a case study detailing their work with Peabody housing association.Kestrix is a software company that works with landlords to assess their building stock in terms of which homes need help and whether the retrofit works that have been carried out are performing. They use their sophisticated broad-brush surveys and image analysis is is designed to help asset owners get the greatest value out of stretched budgets and capacity, investing time wisely and proving value for money.Notes from the showLucy Lyons on LinkedInKestrix on LinkedIn The Kestrix website The Kestrix & Peabody case study that we refer toNational Audit Office report of retrofit performance: Energy efficiency installations under ECONHMF award 'Best Warm Home Initiative' 2026New Study Suggests Using AI Made Doctors Less Skilled at Spotting Cancer**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 Fan MailIn this episode of BetaTalk, Nathan sits down with industry veteran Graham Hendra to unpick the complexities and misconceptions currently stalling the UK's heat pump rollout. While much of the national conversation is bogged down in rigid technical defaults and confusing marketing jargon, this discussion focuses on the practical realities of machine design, the untapped potential of air to air systems, and why the industry must change how it communicates with the general public.Key Discussion Points:The Engineering Reality at Haier Graham shares his journey from a refrigeration engineer to his current role at Haier, the major Chinese electronics manufacturer and a global leader in heat pump production. He discusses the unique challenge of building a better machine from the ground up, moving past the limitations of current units that simply are not good enough for the demands of the modern energy transition.Debunking the "Fridge in Reverse" Myth A deep dive into the industry's communication problem. Both Nathan and Graham offer a clear rejection of the "fridge in reverse" analogy often used by journalists and salespeople. They argue it is a nonsensical description that confuses consumers. Instead, they frame a heat pump as a machine where the engineer is simply interested in the hot bit rather than the cold bit of the same refrigeration cycle.The Strategic Case for Air to Air Heat Pumps Drawing on Graham's extensive background, there is a strong emphasis on air to air heat pumps as a secret weapon for decarbonisation. They explain why these systems are ideal for specific use cases, such as conservatories, bedrooms, or for families needing to heat a single room quickly and affordably, rather than forcing a one size fits all wet system on every property.Installation Nuance and Electrical Standards The conversation highlights the differences in installation quality and regulation. Graham contrasts a high end, quiet installation featuring hidden pipework against minimal budget options that compromise aesthetics. He also addresses the technical nuance behind why UK regulations require fixed appliances to be hardwired, adding cost and requiring a qualified electrician compared to simpler plug in models seen on the continent.Live at The Heat Pump Show, Newark A look ahead to The Heat Pump Show at Newark on April 22nd. Nathan will be hosting a panel featuring Graham, where they will dive deeper into the potential for air to air systems within national decarbonisation strategies and the specific sizing challenges that engineers face in the field.Thanks to the Patrons of the Guild of Master Heat Engineers who help make these podcasts possible. For more technical deep dives visit betateach.co.uk.Support the showLearn more about heat pump heating by followingNathan on Linkedin, Twitter and BlueSky

In fact, several chilly Nordic countries lead the world in heat pump adoption. Learn more at https://www.yaleclimateconnections.org/ 

Send a textIn this episode, Paul, Steve and Bryn go deeper into the Ecodan Air to Water Heat Pump as we prepare for launch.Thanks for listening!  Please visit www.mitsubishicomfort.comContact us at metustechshow@hvac.mea.com

But efficiency upgrades and 'demand response' programs can help keep costs down. Learn more at https://www.yaleclimateconnections.org/ 

To watch a video version of this podcast, click here: https://youtu.be/U0ALmS9vUC0In this episode, Reuben Saltzman and Tessa Murry talk with Sophie Ashley of Energy Vanguard about her journey from hands‑on carpentry and post‑Katrina rebuilding work to becoming an HVAC designer for high‑performance homes. Sophie shares how her field experience shaped her understanding of building science and why proper load calculations, ventilation strategies, and dehumidification planning are essential for modern airtight homes.The conversation also explores the challenges of open‑cell spray foam, moisture buildup in encapsulated attics, and what builders and inspectors often overlook in new construction. Sophie breaks down heat‑pump retrofits, electrification trends, and the importance of balancing comfort, durability, and system design—offering practical, science‑based insights for anyone working with or living in high‑performance homes.Here's the link to Inspector Empire Builder: https://www.iebcoaching.com/eventsYou can check out Energy Vanguard website here: https://www.energyvanguard.com/TakeawaysTight, high‑performance homes often require dedicated dehumidification, even in northern climates.Open‑cell spray foam allows moisture movement, which can raise attic humidity and impact roof decks.Proper HVAC design requires accurate load calculations, not rule‑of‑thumb sizing.Balanced ventilation (HRVs/ERVs) is essential in tight homes; Minnesota enforces some of the strictest standards.Retrofitting heat pumps into existing homes requires duct evaluation—it's not a simple swap.Many builder issues stem from overlooked details: attic access leaks, duct issues, missing covers, and ceiling‑plane air leaks.Electrification is growing, but homeowners must understand system impacts and design considerations.Chapters00:00 — Introduction02:00 — Sophie's Background & Career Path05:00 — High‑Performance Building & HVAC Design11:00 — Ventilation, ERVs & Climate Differences15:00 — Dehumidification in Airtight Homes17:00 — Moisture Problems with Open‑Cell Foam22:00 — Solutions: Conditioning Attics & Diffusion Ports26:00 — Heat Pumps, Dual‑Fuel & Proper Sizing31:00 — Electrification Trends38:00 — Common New‑Construction Issues47:00 — Field Lessons & Moisture Failures52:00 — How to Reach Sophie53:00 — Closing Remarks

Paul Braren from TinkerTry.com joins me this week to discuss energy-efficient home technology, including heat pumps, air sealing, and upgrading older homes for modern HVAC systems. They explore the real-world costs of improving home energy efficiency, the role of smart electrical panels and lithium-ion battery backups, and how modern monitoring tools help homeowners better understand their energy usage. The conversation also covers robotics, network upgrades, and the growing role of AI in everyday technology troubleshooting. Thanks for listening! In this episode of Home Gadget Geeks, Jim Collison welcomes Paul Braren, founder of TinkerTry.com and a long-time advocate for energy-efficient home

Paul Braren from TinkerTry.com joins me this week to discuss energy-efficient home technology, including heat pumps, air sealing, and upgrading older homes for modern HVAC systems. They explore the real-world costs of improving home energy efficiency, the role of smart electrical panels and lithium-ion battery backups, and how modern monitoring tools help homeowners better understand their energy usage. The conversation also covers robotics, network upgrades, and the growing role of AI in everyday technology troubleshooting. Thanks for listening! In this episode of Home Gadget Geeks, Jim Collison welcomes Paul Braren, founder of TinkerTry.com and a long-time advocate for energy-efficient home

In this episode of 50 Shades of Green, we sit down with Cora Wyent, Head of Research & Data Science at Rewiring America, the US' leading electrification nonprofit, to demystify one of the most impactful climate and cost‑saving technologies available today: heat pumps.Cora breaks down:What a heat pump is and how it works as a highly efficient, two‑in‑one heating and cooling systemHow electrification lowers energy bills, boosts indoor air quality, and reduces carbon emissionsWhy 75% of U.S. households could save money by switching to a heat pumpTools Rewiring America offers - including incentives calculators, a personal electrification planner, and a national network of quality contractorsHow renters can electrify their homes, from portable heat pumps to induction hot platesWhy every home is a “unicorn” and what that means for your own electrification journeyWe also dive into policy, workforce readiness, energy equity, and how electrification can help address rising utility costs, especially for vulnerable communities. Whether you're a homeowner, renter, or just energy‑curious, this episode will change how you think about the appliances that shape your daily life.See below for resources mentioned in the episode:Rewiring America Savings CalculatorRewiring America's Latest Homegrown Energy ReportNational Quality Contractor NetworkResources for renters! Hosted on Acast. See acast.com/privacy for more information.

Baz Iyer (Vulcan) and Stephen Lloyd (Savills Earth) join us to talk about the likely impact of the UK's long-awaited Future Homes Standard (FHS) and, perhaps more importantly, the Home Energy Model (HEM).HEM is the new model that will inform the UK's Energy Performance Certification (EPC) rating system. It's much more detailed in terms of the information that it demands about the buildings it is being used to rate, and therefore much more demanding of the assessors.But this means that it can be much more useful for modelling the energy performance of buildings because it will better reflect how the building will be experienced by its users.  It won't be perfect but the level of detail that it demands means that homeowners may be able to use EPCs to make meaningful decisions about how to improve the buildings in which they live. This also means that, in time, it is conceivable that HEM can become a design tool in the same way designers use PHPP to predict performance and calibrate design. That's certainly what Baz is planning and why he and Stephen have been interrogating the place HEM will occupy in the UK construction sector, the impact it might have on its culture, and the opportunity that its adoption will open up.If anyone needs some help getting to grips with this I'd recommend they connect with Baz, he's very friendly and well-informed.Notes from the showBaz Iyer on LinkedInStephen Lloyd on LinkedIn The Vulcan websiteThe Savills Earth websiteVulcan on LinkedInOld ZAP #1 - 'Incompetence still reigns supreme' in energy ratings: DPE certification, EPCs, BERs, and a little bit of ESGOld ZAP #2 - ZAP Shady business #1 – overheating, and Camden: we should think about solar gain all year round, with Zoe De Grussa (BBSA)**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**

https://youtu.be/v1o7RY43K-EMatt and Sean talk about heat pump comparisons, and a full long-form discussion with Paul Braren from TinkerTry.comWatch the Undecided with Matt Ferrell episode, Did I Get the Wrong Heat Pump: Geothermal vs Air Source https://youtu.be/CPwQTUaU-jI?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQA couple of posts about our heat pump comparison on TinkerTry.com:https://tinkertry.com/planning-for-heat-pump-comforthttps://tinkertry.com/geothermal-vs-air-source-heat-pumps-feat-undecided-and-tinkertry(00:00) - - Intro (02:35) - - Undecided Feedback (09:23) - - Paul Braren Interview YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★

Electrification is accelerating across North America. Rebates are expanding. Regulations are tightening. And HVAC contractors are being asked to deliver higher efficiency, lower emissions, and better comfort all at the same time. So where does dual fuel fit in? In this episode of Service Business Mastery, recorded live at AHR Expo, Tersh Blissett sits down with Matt Schlegel and Charles Hurd to break down how dual fuel heat pumps are becoming a powerful solution for commercial and residential contractors. If you're trying to navigate electrification, cold climate performance, rebate programs, and evolving control requirements, this episode gives you clarity and strategy. What You Will Learn in This Episode • What dual fuel heat pumps are and how they operate • The difference between single heat operation and simultaneous heating • Why electrification incentives are driving commercial demand • How dual fuel helps avoid expensive electrical upgrades • Why gas can outperform electric strip heat in extreme cold • How adjustable changeover temperatures impact comfort and cost • How to calculate annual operating costs and emissions impact • How Controls Verification Protocol affects inverter systems • The growing push toward communicating equipment • What AHRI 1380 demand response compliance means for contractors • How manufacturers are using AI to improve troubleshooting and service Timestamps 00:00 Adjustable changeover temperature explained 05:23 What dual fuel solves in commercial applications 08:12 Gas vs electric strip heat in extreme cold 12:24 Utility cost and emissions comparison tool 16:02 How thermostats and changeover logic work 23:39 Brand loyalty after COVID shortages 28:24 Refrigerant transition challenges 33:01 CVP and communicating systems 35:31 Future of proprietary thermostats 40:49 AI in HVAC troubleshooting 44:09 Automation vs AI hype 48:15 How to become a dealer How to become a YORK dealer https://www.york.com/dealers/become-a-contractor  Follow the Host and GuestTersh Blissett: https://www.linkedin.com/in/tershblissett/ Josh Crouch: https://www.linkedin.com/in/josh-crouch/ Matt Schlegel: https://www.linkedin.com/in/matthew-schlegel/ Charles Hurd: https://www.linkedin.com/in/charlesrhurd/  Bosch: https://www.linkedin.com/company/boschhomecomfortgroup/ Connect with Us• LinkedIn - https://www.linkedin.com/company/service-business-mastery • TikTok - https://www.tiktok.com/@servicebusinessmastery • Facebook Group - https://www.facebook.com/groups/servicebusinessmasterypodcast • Instagram - https://www.instagram.com/servicebusinessmasterypodcast

Ever wanted a lower electrical bill during the summer or winter? Look no further than your friendly geothermal heat pump, that uses the ambient temperature of the Earth to heat or cool your home, office building, school, etc. It has often been overlooked in areas with hotter climates, regions where geothermal is primarily harvested for electricity or just for lack of knowledge behind the mechanics of deploying such a system.  Well, in today's episode, I talk with Yale Carden of GeoExchange Australia, about the 20 years of developing, deploying, partnering and overall sharing of knowledge that he and team have done.  GeoExchange Australia https://www.linkedin.com/company/geoexchange-australia/posts/?feedView=all Yale Carden https://www.linkedin.com/in/yalecarden/ CORE Knowledge https://www.linkedin.com/company/core-geothermal Nick Cestari  https://www.linkedin.com/in/nick-cestari-48059268/

David Dilley, a former NOAA and Air Force meteorologist, says climate is driven by natural “climate pulse” cycles from Earth–Moon–Sun gravitational/electromagnetic interactions, not human CO2. He argues warming and cooling have repeated for centuries and claims Arctic ice loss since 1990 is mainly from periodic surges of warm Atlantic subsurface water about every nine years. He critiques NOAA temperature averaging and ice-core CO2 estimates, citing fossil leaf stomata to claim CO2 often exceeded 300 ppm and that most post-1850 CO2 rise is natural. He forecasts a global cooling cycle starting around 2030 lasting 60–75 years, with shorter growing seasons, possible food shortages, and greater energy needs. He advocates shifting climate research funding and expanding thorium/molten-salt nuclear power.00:00 Shorter Growing Seasons & Food Shortage Warnings (2030s)00:31 Meet Meteorologist David Dilley + Climate Pulse Tech Overview03:49 CO₂ Since 1850: Challenging the “All Fossil Fuels” Claim05:05 Historic Warming & Cooling Cycles: Medieval Warm Period to Today07:44 Why Arctic Ice Melted (1990–2025): Warm Atlantic Surges10:52 How NOAA Calculates Global Temps: Oceans Skew the Average13:39 Earth–Moon–Sun Cycles: The “Climate Pulse” & Long-Term Rhythms17:49 Gravitational Peaks & the Coming Global Cooling Cycle21:55 CO₂ Proxies Explained: Ice Cores vs Fossil Leaf Stomata27:36 Correcting the CO₂ Record: Natural vs Human Contributions33:10 CO₂ in the Atmosphere: What the Numbers Actually Are35:30 Ocean Cycles 101: The Atlantic's 65–70 Year Warm/Cold Pattern38:42 ENSO Shift Ahead: La Niña to El Niño and ‘Erratic Weather' (2027–2030)40:27 2030 Arctic Freeze-Up Forecast: Cold Water ‘Plunges' and Europe's ‘Beast from the East'41:40 All Oceans + Solar/Geomagnetic Cycles: Why the 2030s Could Flip to Cooling43:16 Energy Crunch in a Cooling World: AI Power Demand, Heat Pumps, and Grid Risk44:39 Next-Gen Nuclear Pitch: Molten Salt & Thorium Reactors vs Wind51:39 Sudden Stratospheric Warming Explained: Jet Stream ‘Rubber Band' Break55:54 Food & Society Impacts: Shorter Growing Seasons, Europe Cold, and ‘Year Without a Summer'01:02:54 Wrap-Up: Call to Refocus Research Away from ‘Political Science'David Dilley's March 2025 appearance on this podcast (episode #284): https://youtu.be/DKNP_LXp0o8https://www.globalweathercycles.com/http://www.globalweatheroscillations.com/https://x.com/WeatherCycleshttps://www.youtube.com/@DilleyGlobalWeatherCycles=========Slides, summaries, references, and transcripts of my podcasts: https://tomn.substack.com/p/podcast-summariesMy Linktree: https://linktr.ee/tomanelson1

This week on the Fine Hombuilding Podcast, listeners write in about heat-pump performance and ask questions about using asphalt felt for a WRB and maintaining comfortable indoor humidity. FHB senior editor Patrick McCombe is joined by Green Building Advisor editor Randy Williams, Fine Homebuilding technical editor Mark Peterson, and producer Cari Delahanty.   Tune in to Episode 726 of the Fine Homebuilding Podcast to learn more about:  Heat-pump performance during cold snaps Using tar paper as a WRB Raising indoor relative humidity during winter months 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 726 ➡️ Sign up for an FHB All-Access Membership ➡️ 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.

The world's biggest heat pump and air conditioning manufacturers has expanded its presence in this country. Daikin has now moved into a new $30 million warehouse facility in the Christchurch suburb Hornby. 

Pithy quotes "We do our job well if the homeowner forgets about us, because the system just works." "The bar is so low in some homes that doing a quality install can genuinely change someone's life." "The best way to learn is crawling in the crawl space behind a great technician and handing them tools." Semi-famous quote that fits our theme "Stay hungry, stay foolish." © Steve Jobs Shreyas Sudhakar joined the Building HVAC Science podcast to talk about his path from rocket propulsion engineering to building high-quality heat pump installs in California. Bill and Eric found him through his thoughtful LinkedIn posts, and Shreyas shared that a friend's relentless heat-pump evangelism finally pushed him to look deeper. Once he did, the tech clicked. He realized HVAC and rockets share the same core idea: moving energy through systems, and the math is not as far apart as it sounds. What really pulled him in was the homeowner experience. After talking with homeowners on Nextdoor and Reddit, and even calling contractors for quotes himself, he kept hearing the same frustrations: heat pumps feel expensive, contractor advice is inconsistent, trust is low, and myths like "heat pumps don't work in the cold" still show up, even in mild California climates. Shreyas' view is simple: most homeowners do not care what the equipment is called. They care about comfort, noise, bills, and safety, and the best outcome is when the system is so reliable they barely think about it. Shreyas now runs Vayu, a lean heat pump installation company operating with vetted subcontractor partners, while his Heat Pumped newsletter and podcast focus on education for homeowners, technicians, and policy folks. Vayu handles the end-to-end process, from load sizing and equipment selection to permits and rebates, while partner shops focus on the craft of installation. His definition of success is not just a happy install day, but a customer still loving the system a decade later, and technicians thriving because the model removes desk work and supports quality work at scale. Shreyas' LinkedIn: https://www.linkedin.com/in/shreyassudhakar/ His websites: https://www.vayu.pro/about & https://www.heatpumped.org/ HeatPumped Newsletter sign up: https://www.heatpumped.org/subscribe Heat Pumped Podcast: https://creators.spotify.com/pod/profile/heat-pumped/     This episode was recorded in January 2026

https://youtu.be/9M5cISgMNMMMatt and Sean get pumped talking about 3D Printing, Heat Pumps, and your comments.Watch the Undecided with Matt Ferrell episode, Are Heat Pumps a Scam? https://youtu.be/K2c6Rucbi84?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback (25:58) - - Heat Pumps Discussion YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★

Send me a messageWhat if the biggest mistake in climate action is that we're still designing buildings for a climate that no longer exists?In this episode of the Climate Confident Podcast, I'm joined by David Sellers, principal architect at Hawaii Offgrid Architecture & Engineering. David designs net-zero and off-grid buildings on Maui, not as an experiment, but because the climate he's designing for is already shifting. Faster than most regulations, models, or assumptions can keep up.Buildings account for a huge share of global emissions, energy demand, and climate risk. Get the design wrong today, and we lock in higher emissions, higher costs, and lower resilience for decades. This conversation is about how to stop doing that.We dig into why designing with historical climate data is quietly undermining net zero goals, and why buildings completed today will spend most of their lives in a climate no human has experienced before. David explains how shifting wind patterns, rising temperatures, water scarcity, and fire risk are already breaking “best practice” design rules.You'll hear why off-grid no longer means uncomfortable or compromised, and how advances in solar, batteries, heat pumps, and building envelopes have changed the economics completely. We also talk about fire-resistant construction after the Lahaina fires, reusing waste surfboard foam to create ultra-insulated building blocks, and why resilience that only the wealthy can afford isn't resilience at all.This is a grounded, experience-driven look at climate tech, decarbonisation, and the energy transition, without the fantasy timelines or glossy nonsense.

If all U.S. single-family homes adopted heat pumps, it would equal taking 32 million cars off the road. But we need to 10x the current adoption pace by 2030. Quilt CEO Paul Lambert explains how his team from Google, Apple, and Nest is making heat pumps irresistible — with sleek design, 25+ SEER2 efficiency, and software that makes systems smarter over time. He also discusses Quilt's rapid scaling strategy, its $20M Series B funding round, and the new 3-zone system.

Heat pumps are having a moment. Last year, the U.S. passed China to become the world's number one market for heat pumps—and they're not slowing down. But while heat pumps are efficient and effective on paper, they haven't always been objects of desire. Until now.This week, Molly talks to Paul Lambert, CEO and co-founder of Quilt, about building a heat pump company that's equal parts climate solution and consumer product. Paul explains how his team is reimagining the mini-split heat pump—not just as an HVAC system, but as a piece of technology you're proud to have on your wall.We dive into:How heat pumps work: Why an AC is basically "a half-broken heat pump" that only runs in one directionThe two types of heat pumps: Ducted systems vs. ductless mini-splits, and why room-by-room control is a game-changerDesign as climate strategy: How Quilt spent half their initial capital on a domain name and invested heavily in industrial design to create pull, not just policy pushThe installer advantage: Why partnering with contractors (instead of doing it all in-house) unlocked national scaleSmart grid integration: How Quilt's internet-connected system enables demand response without sacrificing comfort—curtailing load in empty rooms while keeping occupied spaces perfectThe data center opportunity: How replacing electric resistance heating with heat pumps near data centers can free up 75% of the energy load—without building new generation capacityWhy incentives help but aren't required: 60% of America is primarily cooling-driven, and heat pumps are just better air conditionersPricing reality: Quilt is competitive with high-end Japanese mini-splits, not luxury-priced like early Nest thermostats or TeslasThe personal mission: How Paul's Alberta roots in the fossil fuel industry and his commitment to his kids' future drove him to climate techKey insight: Space heating and cooling represent half of all home energy use and 70% of fossil fuel consumption in homes—making HVAC the single biggest lever for decarbonizing buildings.Links:Quilt: https://quilt.comFind a Quilt installer: https://quilt.com (click "Find an Installer")All episodes: https://www.everybodyinthepool.com/Subscribe to the Everybody in the Pool newsletter: https://www.mollywood.co/Become a member for the ad-free version of the show: https://everybodyinthepool.supercast.com/ Hosted on Acast. See acast.com/privacy for more information.

Send me a messageHeating cities by opening windows is not a joke. It's how many buildings still control temperature in winter, and it's a climate disaster hiding in plain sight.In this episode, I'm joined by Drew Maggio, Technical Director at Highmark Building Efficiency, to unpack why buildings are one of the biggest, most underestimated levers in the climate transition, especially in dense cities like New York.Buildings account for roughly 70% of New York City's emissions, yet much of the stock was designed for an era of cheap fossil fuels, crude controls, and worst-case thinking. Drew works at the sharp end of fixing that. We talk about what actually breaks when you try to electrify old buildings, and why bad assumptions, not bad technology, are slowing progress.You'll hear why oversizing heat pumps for rare freezing days drives up costs and kills projects. We dig into how treating heat as a resource, not waste, unlocks massive gains, from wastewater heat recovery to capturing subway heat that currently just bakes tunnels to 100º F. And you might be surprised by how much energy can be recovered before it ever leaves a building.We also get into Local Law 97, New York's landmark building emissions regulation, and why it's forcing real-world change instead of glossy pledges. This is a grounded, practical conversation about decarbonisation, climate tech, policy, and the uncomfortable reality that many “heritage” systems are simply uncontrolled systems we've tolerated for too long.

Chris shares a news story about recently-introduced window-mounted heat pumps. Mason describes the joy that comes from using top shelf tools, even if it's once or twice a year. Alex asks about installing spray foam under roof sheathing and exterior roof insulation.   Grant and Mike discuss their home projects and help Patrick address listener feedback and answer questions about roof insulation.      Tune in to Episode 721 of the Fine Homebuilding Podcast to learn more about:  ·       Window-mounted retrofit heat pumps for rooms and apartments ·       Finding space and spending money for good tools ·       The right way to combine interior and exterior roof insulation     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 721 ➡️ Learn about the 2025 Fine Homebuilding Archive ➡️ 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.    *************************************************************************************

Don Lemon is still making headlines as a judge rejects his charges. Then, Maura Healey announces her latest scam to 'cut rates.'  Visit the Howie Carr Radio Network website to access columns, podcasts, and other exclusive content.

In this episode of the HVAC Know It All Podcast, host Gary McCreadie talks with John Davidson, Regional Trainer at Fujitsu General America, Inc. John explains how heat pumps work in cold climates by using refrigerant technology to move heat from outside to inside. He discusses the role of coil temperature, pressure, and energy transfer in the heating process. The episode also covers inverter technology, the importance of base pan heaters, and how matched air handlers improve system efficiency. John shares tips for choosing between dual-fuel and all-electric setups based on cost, climate, and home design. In this conversation, John explains how heat pumps use refrigerant and pressure changes to move heat in cold weather. He gives clear examples to help listeners understand how coils absorb energy even in freezing temperatures. John also talks about the role of inverter compressors in matching indoor heating needs and how newer models improve low-temperature performance. He highlights the importance of base pan heaters and proper drainage to prevent damage during defrost. The discussion ends with a look at dual fuel versus all-electric setups and how system design affects comfort and efficiency. Expect to Learn: How heat pumps move heat from cold outdoor air using refrigerant and coil temperature. Why pressure and temperature changes are key to efficient heat transfer in HVAC systems. What inverter technology does to match heating needs and improve comfort. How base pan heaters prevent ice damage and support proper defrost operation. When to choose dual fuel or all-electric setups based on cost, climate, and home needs. Episode Highlights:   [00:00] - Intro to John Davidson in Part 1 [02:15] - Heat pumps thrive in cold [03:58] - Visual: How heat really moves [07:09] - Real-world analogy for temperature difference [09:20] - Inverter technology explained [10:53] - XLT/XLT+ capacity in extreme cold [13:40] - How cold-climate heat pumps gain capacity [14:35] - Critical role of the base pan heater [17:28] - Dual fuel vs. all-electric system choice [22:33] - Systems that monitor efficiency   This Episode is Kindly Sponsored by: Master: https://www.master.ca/ Cintas: https://www.cintas.com/ Cool Air Products: https://www.coolairproducts.net/ property.com: https://mccreadie.property.com SupplyHouse: https://www.supplyhouse.com/tm Use promo code HKIA5 to get 5% off your first order at Supplyhouse!   Follow the Guest John Davidson on: LinkedIn: https://www.linkedin.com/in/johndavisonvrf/ Fujitsu General America, Inc: https://www.linkedin.com/company/general-inc-us/    Website:  Fujitsu General America, Inc: https://www.fujitsugeneral.com/    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/ 

Heat pumps sit at the heart of Europe's strategy to cut emissions and reduce dependence on imported gas. Under the EU's REPowerEU plan, the bloc is targeting 60 million heat pumps by 2030. By the end of 2025, almost 30 million units were already installed — progress, but still only halfway to the goal.Gerard and Laurent are joined by Paul Kenny, Director General of the European Heat Pump Association (EHPA), to unpack why adoption has surged in countries such as Japan, Scandinavia and parts of the US, while many European markets continue to lag.After a strong year in 2022, European heat pump sales slowed in 2023 and 2024 amid high upfront costs, a shortage of qualified installers, weaker policy support and an unfavourable price relationship between gas and electricity. Paul explains why confidence is returning in 2025, with 1m heat pumps sold across 13 European countries in the first half of 2025, a 9% increase on 2024.We also look beyond residential heating to the rapid rise of industrial heat pumps, which could become a major decarbonisation tool for sectors requiring heat below 200°C, including food processing and pharmaceuticals. The conversation explores how heat pumps can add flexibility to the power system, in some cases reducing the need for battery storage, and why data centre heat management is emerging as a key new application.As the leading voice of Europe's heat pump industry, EHPA is working to make heat pumps the preferred technology for sustainable heating and cooling — strengthening Europe's competitiveness, resilience and energy security in the process.-----At Redefining Energy, we are excited to be part of International Energy Week, where some of the biggest names in global energy come together for a packed agenda tackling the ideas, technologies, and policies shaping the future. ENGIE's CEO Catherine MacGregor will be speaking, as well as IEA Executive Director Dr Fatih Birol and Shell's CEO Wael Sawan.  Join us there and get 20% off your ticket with the promo code REIEWEEK20. https://www.ieweek.co.uk/--Finally, Gerard and Laurent are invited by Jan Rosenow, professor of energy and climate policy at Oxford university and an energy policy expert, for a live session at Oriel College in Oxford on 25/2/26.    

In this short podcast, Bryan answers a listener-submitted question and explains why heat pumps get a bit weird: when it comes to superheat in heat mode. He also explains how we can move heat from outdoors to indoors, even in temperatures below freezing (cold temperatures just have less heat, not zero heat). In order to move heat in very cold conditions, we need very low suction pressures and cold coils, which gives us a high compression ratio. Superheat will be affected by these conditions. Remember: superheat that is too low can cause floodback, and superheat that is too high can cause the compressor to overheat. Superheat is easy to check in cooling mode, but it's harder in heating mode, especially since the suction line is at the outdoor unit. In heating mode, we can only measure superheat between the coil outlet and the reversing valve inlet, which is a very short run of tubing. The superheat will also be less stable in heat mode in cold weather, and it will have a wider range of "normal" values than cooling mode, depending on the conditions. Superheat could even drop to zero with some fixed-orifice metering devices (which would cause floodback). That's why many of these heat pumps have accumulators, which collect liquid refrigerant to protect the compressor. Even though TXVs attempt to maintain superheat, you may still see some variation in heat mode during cold weather. EEVs are common in ductless systems and are highly controllable but maintain relatively low superheats by design; fast metering control, intelligent logic, accumulators, and low refrigerant charges allow them to avoid floodback in low temperatures. In any case, spikes and drops in temperature can cause the superheat to jump or collapse because the load changes (as the outdoor coil is the evaporator). Frost buildup on the coil also inhibits airflow and heat transfer, causing the superheat to change as the evaporator pressure and temperature drop. Defrost also introduces chaos to the equation. All of these should influence your judgment when checking superheat to diagnose or commission a system in heat mode.   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 7th 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.

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