Best Bill Spohn Podcasts (2025)

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EP247 From CEO to Chief Education Officer: Bill Spohn on Legacy, Leadership & Better HVAC (November 2025) 33:19

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"Get mad at the problem, not the person. When people feel safe, they'll actually bring you the real issues." - Bill Spohn "We're woven into the fabric of this industry. The industry made me—so in a way, it owns me." - Bill Spohn "What we have to learn to do, we learn by doing." - Aristotle In this episode, Eric turns the mic around and interviews h…

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EP249 The Hidden Hazards: CO, H₂S and the Tech Behind Modern Gas Detection With Dave Massner from Sensorcon (December 2025) 46:05

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Episode quotes: "Hydrogen sulfide doesn't announce itself. It can drift in, hit your mucus membranes, and start causing real harm before you know it's there." "You can't treat sensor response like magic—it's physics, chemistry, and smart filtering working together to tell you what's actually happening in the space." In this episode, Bill & Eric sit…

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EP147 Best of 2025: The Year RESNET® Hit Another Gear (December 2025) 21:03

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In this special "Best of RESTALK 2025" episode, host Bill Spohn looks back at the ideas and conversations that defined the year across the RESNET® ecosystem. Rather than a simple highlight reel, this episode weaves four major themes that kept surfacing—from sweeping QA modernization efforts to the market forces accelerating HERS adoption to the eme…

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EP248 Balanced Comfort, Brutal Lessons: Scaling, Losing Half Your Revenue, and Starting Over with AI with Aaron Husak (November 2025) 39:20

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"Inspect your marketing the way you'd inspect a home—run diagnostics, don't guess." – Aaron Husak "Attitude is way more important than aptitude. One bad apple really can infect the whole company." – Aaron Husak In this episode of the Building HVAC Science podcast, Eric and Bill sit down with long-time friend and contractor-turned-marketing pro, Aar…

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EP246 Beyond MERV: The Truth About Smoke, Sensors, and Standards With Sissi Liu (October 2025) 39:29

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Episode quotes: "Below about 0.4 microns, many low-cost PM sensors are basically guessing—right where wildfire smoke and aerosols live." — Sissi Liu "Electrostatic filters can look great at first—and then fall off a cliff in smoke. Pressure drop won't warn you." — Sissi Liu "Science is a way of thinking much more than it is a body of knowledge." — …

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EP245 Retrofit the Future: Inside PHIUS's New Revive Standard with Al Mitchell and Haley Harlow (October 2025) 38:38

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Eric Kaiser sits down with Haley Harlow and Al Mitchell from PHIUS (Passive House Institute US) to explore Revive 2024, a groundbreaking new retrofit standard focused on thermal resilience and healthier, safer existing buildings. Haley shares her path from Pennsylvania College of Technology to her current role managing building certifications at PH…

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EP244 Envelope, HVAC, and Humans: Solving the IAQ Puzzle with Brantley May (October 2025) 29:28

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Quotes by Brantley: "Most moisture problems are a three-way dance—envelope, mechanicals, and the occupants." "Skim the light, don't blast it. The right flashlight technique makes the invisible visible." "If you only understand one piece of the system, you're solving 1/3 of the problem." Indoor environmental specialist Brantley May joins the show to…

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EP146 Beyond the Score: Market Signals, QA, and the Future of RESNET® with Steve Baden (October 2025) 32:50

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QUOTES FROM STEVE: "The challenge isn't how far we can push efficiency—but how affordable we can make it." "Give builders a clear target and the market will respond." "It's been a hell of a ride—thanks for the memories. Now it's your turn to take it to the next level." Steve Baden tells the story of RESNET®'s early days—from Alaska's energy-code ba…

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EP243 Three Sensors, One Strategy: Making Maintenance Truly Smart With Kevin Weaver from SmartAC (October 2025) 35:07

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Episode Quotes from Kevin Weaver: "If we can quantify delivered capacity on the air side, we can work our way back to what's happening on the refrigerant side." "We don't have to diagnose everything remotely — we have to be great at saying, 'there's a problem,' and prioritizing action." "Even the best design can be wrecked at installation. Executio…

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EP242 Give Every Heat Pump a Cell Phone - Predictive HVAC with Thalo Labs With Brendan Hermalyn (October 2025) 34:38

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QUOTES from the Episode "Instead of landlines everywhere, give every heat pump a cell phone and let it call home." "We're seeing close to 40% of heat pumps undercharged or leaking—no wonder callbacks are high." "What gets measured gets managed." — often attributed to Peter Drucker (fitting this data-driven shift) Brendan Hermalyn (CEO/founder, Thal…

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EP241 Hydronics, Storage, and a Single Box: Berlin Raj's Totex Vision (September 2025) 37:26

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Totex co-founder Berlin Raj joins Eric and "Overkill Bill" to unpack a single-box, hydronic monoblock system that combines space conditioning, domestic hot water, pool heating, thermal + lithium storage, EV charging integration, and backup power. Born from Berlin's lifelong tinkering (and many shocks), the idea: stop wasting condenser heat—capture …

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EP145 Turning Efficiency into Equity: Inside the C-PACE Model with PACE Equity with Tricia Baker and Karl Peer (October 2025) 24:26

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QUOTES: "We created the CIRRUS Low Carbon program to speak to developers' pocketbooks — build a better building, and you get a better rate." — Tricia Baker "Early design is peace of mind — it saves you a buck or two and a lot of headaches later." — Karl Peer In this episode of RESTalk, host Bill Spohn is joined by Tricia Baker, Senior Vice Presiden…

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EP240 Run Into the Fire: Curiosity, VRF, and the Rise of Roman Baugh (October 2025) 48:54

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Quotes from the Episode: "If it helps one person, then it's worth its weight in gold." —Roman "Stop asking 'What if I fail?'—ask 'What if I'm amazing at this?'" —Roman "I ran into the fire and rescued my future self." —Roman (riffing with Bill) Roman Baugh—third-generation tradesman, educator at Kalos Services, and prolific HVAC content creator—joi…

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EP239 Psychrometrics, Mobile Apps, and the Future of HVAC with Carmel Software (September 2025) 32:06

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Stephen Roth—founder of Carmel Software and current owner of Hands Down Software—joins Bill and Eric to trace a multigenerational journey from a 1920s Ohio roofing firm to modern HVAC software that powers everyday field work. Stephen shares how family roots in commercial roofing and energy management shaped his path as a mechanical engineer and cod…

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EP238 From Talk to Proposal: NOSO's Take on Ethical, Measured Sales With Winston Chi (September 2025) 37:52

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"Use AI to augment people, not replace them." "Windshield time is 30% of a tech's day—let's turn it into sales prep." "Proposals should translate specs into homeowner value—comfort, savings, and choices." In this episode, recorded live from the NCI Summit 2025 in Round Rock, TX, Bill and Eric sit down with Winston Chi, co-founder of NOSO Labs, to e…

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EP237 From Data to Decisions: Tools, Demos, and Takeaways from NCI With ELK and Bill (September 2025) 33:58

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Some quotes: "When we treat the house as the biggest duct, comfort and performance finally line up." "Field data becomes financial data the moment a homeowner decides—so it has to be right." "If you can't measure it, you can't improve it." — often attributed to Lord Kelvin Fresh back from the early-September NCI Summit in Austin, Bill and Eric reca…

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Taking the Pulse: PKC21, OceanLink Pro, and the Future of the Fisker Ocean 1:02:52

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In this episode of Ocean Currents, Miles Sedgwick and Andrew Bock sit down with Majd, lead developer behind the Pulse and Ocean Link Pro, and Gitte, from the Fisker Owners Association (FOA), to dive deep into the latest community-driven innovations for Fisker Ocean owners. From the OceanLink Pro app that empowers owners with diagnostics and remote …

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EP236 Details Matter, but So Does the Big Picture A Conversation with Lisa White of PHIUS (August 2025) 44:15

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In this episode of the Building HVAC Science Podcast, Eric Kaiser and Bill Spohn welcome Lisa White, Associate Director of PHIUS, to explore the evolving world of passive building. Lisa shares her journey into building science, her role at PHIUS, and how the organization has grown from a niche movement into a force shaping multifamily and affordabl…

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EP144 From Checklists to Real-Time Data: The QA Evolution at RESNET🄬 With Laurel Elam and Scott Doyle (September 2025) 19:45

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EP144 From Checklists to Real-Time Data: The QA Evolution at RESNET🄬 With Scott Doyle and Laurel Elam (September 2025) "If you're a professional and the rules of your profession change, you can't afford not to keep up." — Scott Doyle In this episode of the RESTalk podcast, host Bill Spohn sits down with two long-time leaders at RESNET🄬: Laurel Elam…

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EP235 Counter-Culture, Catharsis, and Craft: Nathan Orr on Kalos, Blue Rabbit, and Beyond (August 2025) 34:49

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In this episode of the Building HVAC Science Podcast, Eric and Bill welcome Nathan Orr, Sales Director at Kalos and co-founder of Blue Rabbit. Nathan is candid, reflective, and unfiltered, sharing how his creative process—whether through writing late-night reflections or even experimenting with unconventional podcast settings—helps him process emot…

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EP234 Heat Transfer and Heart: What 40 Years in HVAC Can Teach Us All With Mike Uselof (July 2025) 34:51

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In this episode of the Building HVAC Science Podcast, Eric Kaiser and Bill Spohn welcome longtime HVAC instructor Michael Uselof, who shares his remarkable journey from answering a humble job ad in 1983 to becoming a passionate educator with the United Association (UA). Michael reflects on the value of learning through hands-on experience, the evol…

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EP233 Thermal Cameras, AI, and Comfort: HomeBoost's Big Idea with Selina Tobaccowala (July 2025) 37:34

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On this episode of the Building HVAC Science Podcast, Bill Spohn and Eric Kaiser are joined by seasoned tech entrepreneur Selina Tobaccowala, founder of HomeBoost.com, to discuss a new consumer-driven solution that brings energy comfort diagnostics into the modern era. Selina, whose background includes co-founding Evite and serving as President/CTO…

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EP232 Dry Air Done Right: The Art and Science of Dehumidification With Nikki Krueger (July 2025) 44:02

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In this engaging episode of the Building HVAC Science Podcast, Eric Kaiser chats with Nikki Krueger, National Sales Manager and building science advocate at Santa Fe (a Thermastor brand), often dubbed the "Queen of Dehumidification." They explore the science and application of dedicated dehumidification in homes and buildings across various climate…

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Right-Hand Drive, Left-Hand Problems: FOA in the EU & UK 51:37

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In this episode of the Ocean Currents podcast, Andrew Bock and Bill Spohn are joined by Miles Sedgwick and two prominent FOA leaders from the EU and UK — Geeta and Jose — to dive into the unique challenges and successes of Fisker ownership outside North America. The conversation addresses common perceptions that the EU and UK communities are "left …

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EP231 Reimagining HVAC Sales: How Eden Is Modernizing the Home Upgrade Journey with Josh Koplin (July 2025) 37:40

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In this episode of Building HVAC Science, Bill Spohn welcomes Josh Koplin, co-founder of Eden (https://e-denhomes.com), to talk about how digital tools are reshaping the HVAC sales experience. Josh shares his unique journey from building power plants in Japan—where he was immersed in a heat pump-centric culture—to co-founding Eden, a company aimed …

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EP143 Sweat Equity Meets Smart Energy: Inside a Habitat Zero Energy Ready Build with Kevin L. Smith (July 2025) 25:45

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"When you're in construction, you're just building sticks and bricks—until you understand how a house actually performs." – Kevin Smith In this episode of RESTalk, Bill sits down with Kevin L. Smith, CEO of Habitat for Humanity of New Castle County, to explore a groundbreaking project: the Bennett Point Phase 1 homes, which earned both ENERGY STAR …

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EP230 Beyond Smoke and CO: The Case for Natural Gas Alarms with Marc A. Adams (July 2025) 51:31

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"Incidents drive policy. Policy drives law." – Marc A. Adams "You don't want to do the Scooby-Doo dance if you smell gas—evacuate and call 911." – Marc A. Adams "An electronic nose is a better solution than relying on your own." – Bill Spohn In this compelling episode of the Building HVAC Science Podcast, Bill Spohn and Eric Kaiser speak with Marc …

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EP229 Smart Sensors, Healthy Patients: The Future of Healthcare IAQ with Renee Jacobs (July 2025) 30:48

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"IAQ is no longer just a maintenance issue—it's a strategic lever for improving patient outcomes and financial performance in healthcare." "Saving a single dollar in energy for a hospital is like generating twenty dollars in patient revenue." "The big message: it's not as big a lift as it used to be. Smart IAQ solutions are now turnkey and data-dri…

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Special Episode on Tsunami, Tidal Wave & Undercurrent 51:58

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Join us for this special edition of Ocean Currents, featuring an audio-only version of the video posted to our YouTube channel with Sybil and Guillaume, along with host Miles, offering an in-depth look at the volunteer-powered movement providing much-needed parts, software, and support to the Fisker Ocean community. Discover the stories and structu…

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EP228 GRIT Camps: Where Trades Meet Transformation with Leilani Orr and Ty Branaman (July 2025) 53:50

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In this episode of the Building HVAC Science Podcast, hosts Bill Spohn and Eric Kaiser sit down with two passionate leaders from the GRIT Foundation—Executive Director Leilani Orr and Head of Training Ty Branaman. Together, they unpack the origin story, purpose, and transformative impact of GRIT Camps, which introduce youth to the skilled trades in…

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EP227 From Toolbelt to Trainer: Adam Mufich's HVAC Journey (June 2025) 34:16

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In this wide-ranging episode, Eric Kaiser and Bill Spohn welcome longtime HVAC pro and educator Adam Mufich to the podcast. Adam shares his unique path through the industry—from growing up in a third-generation HVAC family and starting his own company, to becoming a trainer at the National Comfort Institute (NCI). The trio dives into how social med…

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EP142 Home Efficiency by the Numbers: Highlights from the 2025 RESNET® Report with Ryan Meres (June 2025) 25:05

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"RESNET members are now touching about a third of all new single-family homes. That's a big number — and it's only growing." -Ryan Meres In this episode of RESTalk, host Bill Spohn welcomes back Ryan Meres, Programs Director at RESNET®, to explore the key insights from the 2025 HERS® Rated Homes Data Trends Report. This sixth annual edition reveals…

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Talking Troubleshooting with Fisker Technician Dorian Rosales 38:49

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Ocean Currents is excited to bring this episode to the Fisker Ocean community. On today's episode, we're joined by Dorian Rosales from Pat's Garage (a legacy Fisker shop) in San Francisco. Dorian spent several months troubleshooting and attempting to fix a pretty material issue with my Fisker Ocean...doors that would not open. Dorian shares his ins…

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EP226 Three Miracles and a Heat Pump: Fixing Retrofit Policy from the Ground Up with Abhi Katamneni & Nate Adams (June 2025) 57:09

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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 h…

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EP225 Beyond the Image: Lessons in Humility and Heat Transfer with Matt Schwoegler (June 2025) 35:21

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In this engaging and insightful episode of the Building HVAC Science podcast, Eric Kaiser and Bill Spohn welcome Matt Schwoegler, founder of Blaze Infrared and longtime thermography educator. Matt shares his unexpected journey into the world of infrared—from a marketing career in the ski industry to teaching thousands about heat transfer and therma…

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EP224 Beyond Vapor Compression: Smarter DOAS with Liquid Desiccants with Phil Farese (June 2025) 40:36

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In this in-depth episode of Building HVAC Science, hosts Bill Spohn and Eric Kaiser sit down with Phil Farese, CEO of Mojave HVAC, to explore the cutting edge of desiccant dehumidification technology. Phil, whose career began in physics at Cornell and research at Princeton before moving into consulting at McKinsey and leadership roles at NREL, Enph…

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EP223 AI Without the Hype: Real-World Automation with Tersh Blissett (June 2025) 40:21

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In this high-energy episode of Building HVAC Science, Bill Spohn and Eric Kaiser welcome Tersh Blissett—entrepreneur, podcaster, and automation enthusiast—for a deep dive into how AI and automation are transforming service businesses. Tersh, known for running multiple HVAC, plumbing, and electrical companies, shares his journey from podcasting begi…

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EP222 Airflow, Action, and Ideas: Brent Davidson's Mission to Elevate Heat Pump Pros (June 2025) 33:19

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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 back…

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EP141 Ventilation, Codes & Comfort: What Builders Need to Know Now with Patrick Nielsen 22:38

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"As homes get tighter, ventilation isn't optional—it's essential." — Patrick Nielsen In this episode of RESTalk, host Bill Spohn sits down with Patrick Nielsen, Global Technical Products Manager at Broan-NuTone, to discuss the evolving world of home ventilation. With over two decades of experience, Patrick walks us through the major drivers shaping…

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EP221 Consultative Selling Meets Smart Software in Home Performance with Amanda Godward (May 2025) 33:51

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"Proposals don't save energy… action does." — Bill Spohn "I didn't know how cool this thing was until we started sharing it with the world." — Amanda Godward "Change is hard—but that's what makes it great." — Amanda quoting Ross Trethewey from This Old House In this episode of Building HVAC Science, hosts Bill Spohn and Eric Kaiser welcome Amanda G…

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EP220 Just Keep Learning: The HVAC Journey of Dirk Nauman (May 2025) 37:44

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"The process doesn't fail. The technician fails to follow the process." – Dirk Nauman In this inspiring episode of the Building HVAC Science Podcast, Eric Kaiser and Bill Spohn are joined by Dirk Nauman—HVAC trainer, simulator inventor, and founder of Visual 3D Academy. Dirk shares his personal transformation from a nervous first-time trainer to an…

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Wired for Change: Fixing What Fisker Left Behind 29:01

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"Being disconnected hasn't stopped me from driving—but it has stopped me from trusting." "The FOA are the helpers. And when you're lost, you find the helpers." "The car's back—but the confidence isn't." "This isn't just a car problem—it's a community resilience story." In this candid and timely episode of Ocean Currents, Bill Spohn and Andrew Bock …

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EP219 Thermentor: Rethinking Load Calcs with Real Energy Data with Max Reichlin (May 2025) 31:41

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"We're not guessing what's inside the walls—we're measuring how homes really use energy." Max Reichlin In this episode of the Building HVAC Science Podcast, Eric Kaiser and Bill Spohn sit down with Max Reichlin from Clean Power Research to explore a groundbreaking HVAC tool: Thermentor. Designed to bridge the gap between estimated and actual reside…

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EP218 Breaking Down Silos: The Path to Better Retrofit Training with Ben Hildebrandt (May 2025) 49:01

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In this episode of the Building HVAC Science Podcast, Eric Kaiser and Bill Spohn welcome Ben Hildebrandt, a passionate advocate for building science and green technology education at the Southern Alberta Institute of Technology (SAIT). Ben shares his winding career path—from automotive mechanics to aircraft maintenance to architectural technology—a…

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EP140 The Future of QA at RESNET®: Automation, Oversight, and ENERGY STAR Updates with Scott Doyle 26:09

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"You can't manage what you can't measure." — Peter Drucker In this insightful episode of RESTalk, host Bill Spohn welcomes Scott Doyle, RESNET's Managing Director of Quality Assurance (QA), for a comprehensive update on what's ahead in the world of RESNET QA®. Scott unpacks the most significant changes hitting the registry, Chapter 9 standards, and…

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EP217 Where Building Science Meets HVAC: Insights from New Orleans (April 2025) 21:40

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In this episode of Building HVAC Science, Eric Kaiser and Bill Spohn are joined by a special guest who's carrying on the Spohn legacy—Billy Spohn. The trio recaps their experience at the 2025 National Home Performance Conference in New Orleans, the largest in the event's history, with over 2,800 attendees. They reflect on the continued convergence …

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EP216 Built to Last: How JB Industries Keeps It Made in America (April 2025) 40:12

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In this episode of Building HVAC Science, hosts Bill Spohn and Eric Kaiser sit down with Jeff Cherif and David Madden from JB Industries, a long-standing, U.S.-based HVAC tool manufacturer with deep roots in Aurora, Illinois. Jeff shares his fascinating journey from Motorola executive in Dubai to co-owner of JB Industries, sparked by a chance rooft…

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EP215 Mindset, Metrics & Mastery: Anthony Woo's HVAC Game Plan (March 2025) 40:47

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"How much pain they have cost us, the evils which never happened." —Thomas Jefferson In this episode of the Building HVAC Science Podcast, Eric Kaiser and Bill Spohn sit down with Anthony Woo, an HVAC contractor from Quebec, Canada. Anthony shares his journey from dropping out of college to becoming a successful business owner specializing in heat …

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Obsessed, United, and Not Giving Up: FOA's Road Forward 1:19:53

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In this super-sized, powerful, and deeply human episode of the Ocean Currents Podcast, Andrew Bock and Bill Spohn sit down with Cristian Fleming, president of the Fisker Owners Association (FOA), for a wide-ranging and insightful discussion. Cristian shares the origin story of the FOA, driven by a mix of injustice, obsession, and a desire to help a…

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EP214 Why Small HVAC Companies Get Stuck—and How WorkHero Helps Them Grow with Furman Haynes (March 2025) 34:21

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"You can be high quality and effective, but also efficient at the same time." — Furman Haynes, Founder of WorkHero In this episode of the Building HVAC Science Podcast, Eric Kaiser and Bill Spohn sit down with Furman Haynes, co-founder of WorkHero, to explore a critical challenge facing small HVAC business owners: the administrative burden that sti…