Bill Spohn
Building HVAC Science
Exploring the science, people, and practices shaping better buildings. The Building HVAC Science Podcast dives into both the technical and human sides of heating, ventilation, air conditioning, and building performance. Hosted by industry veteran Bill Spohn, CEO and co-owner of TruTech Tools, the show reflects Bill's passion for advancing the HVAC craft through practical knowledge, curiosity, and conversation. With more than 250 episodes and counting, the podcast features discussions with contractors, distributors, manufacturers, educators, and thought leaders from across the HVAC and building...
Be sure to visit the podcast's website and support the creator: www.buildinghvacscience.com
Author
Bill Spohn
Category
Podcast website
Latest episode
Oct 23, 2026
Where to listen?
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Episodes
EP68 Sustainability for homes with Brett Little 11.03.2022 34:31
Brett approaches sustainability with thoughtfulness and enthusiasm. He is the Program Manager at GreenHome Institute, has been involved in residential sustainability since 2008, and holds a bachelor's in Sustainable Business. Brett has provided consulting and verification services on thousands of residential green-certified living spaces and certified four projects as a LEED Green Rater. Bret...
EP67 Residential HVAC design has not changed much in 20+ years with Russ King (Aug 2021) 04.03.2022 41:00
Russ King is a rare breed. He is equally inventor, author (both technical and fiction), software developer, design practitioner, instructor and installer. Above all that, he is passionate, thoughtful, kind, smart and loves to share what he knows. If you get a chance, go see Russ present some time. You can find Russ on LinkedIn: https://www.linkedin.com/in/russell-king-m-e-70342913/ He's...
EP66 The Art & Science of Healthy Homes with Joe Medosch 25.02.2022 46:53
Joe is one of the coolest guys I know. He probably doesn't think of himself that way. He's been so influential in changing the perception and understanding of IAQ and healthy homes in the last few years. And he is SO PASSIONATE about getting people to understand. He is always testing products and building props and animations to teach others. If you get a chance, go see Joe present some time...
EP65 Let's talk mold with Jason Earle (January 2022) 18.02.2022 36:57
Jason Earle of GotMold.com gives a fascinating tour of his personal journey and how he ended up breaking the price barrier for lab testing of mold in the air. Jason has set up a special landing page for our listeners: https://www.gotmold.com/ trutech AND… a 10% discount code just for you! Trutech10 This episode was recorded in January 2022.
EP64 All houses are different, some can be deadly with Paul Raymer (Sept 2021) 11.02.2022 38:46
Paul's a unique, but complex man: equal parts scientist, inventor, business owner, practitioner, and author. Paul's technical website is https://www.heyokasolutions.com/aboutus.asp and his publishing website is https://www.paulhraymer.com/ , Salty Air Publishing The Residential Ventilation Handbook is a must read for those in building science. This episode was recorded in Sept 2021.
EP63 The History and Mission of UEi with Michael Kane (Sept 2021) 04.02.2022 39:25
I'm so happy to bring the voice, thoughts, and ideas of Michael Kane to the Building HVAC Podcast! You'll hear about the art and process of product development that has evolved through 2 generations of ownership of this family business. Michael is a man of patience and empathy and greatly respects the dignity, value and skill of the trades, He hopes to create the best products for people in t...
EP62 The Next Evolution in Healthy Air with Dawn Oggier & Brian Kennihan 28.01.2022 38:24
Since January is Radon awareness month, I've invited 2 people deeply involved in the Radon industry to be my guests today. Dawn Oggier, is Manager of Market Development for RadonAway and National Director for AARST – the American Association of Radon Scientists and Technologists ( https://aarst.org/) Brian Kennihan is the Business Development Manager for AprilAire. If you are catching this...
EP61 A unique approach to efficient urban housing with Brian Gaudio (July 2019) 21.01.2022 30:00
Brian is on a mission with this company, Module Housing. Their tag line says it all: Designed for people and planet powered by offsite construction. Connect with him on LinkedIn: https://www.linkedin.com/in/briangaudio/ Or via his website: https://www.modulehousing.com/ This episode was recorded in July 2019.
EP60: Inside Inficon with Bob Belvick (July 2020) 06.08.2021 31:06
"Research is to see what everybody else has seen, and to think what nobody else has thought." Albert Szent-Gyorgyi I'm certain many of our listeners have had ideas for products of their own. Trade practitioners are clever and innovative on the job and so, able to see new ways to "connect the dots" and solve a problem. How do you go from idea to successful product on the market? How long...
EP59: How I built Halco with Hal Smith (Dec 2019) 30.07.2021 30:18
"Repetition makes reputation and reputation makes customers." Elizabeth Arden Fortune may come knocking, but sometimes the sound is very faint, almost imperceptible. When someone takes you under their wing, how do you know if that's where you want to be? If the bug to start your own business bites, what do you do next? Where can you learn from others' experience and insights? We're pleased t...
EP58: Genry Garcia: An inspiring contractor's story (June 2021) 23.07.2021 29:41
"I can't change the direction of the wind, but I can adjust my sails to always reach my destination." Jimmy Dean Many of the people I meet in the industry have interesting stories. There are struggles and challenges in all their lives, our lives. What if a real police state was limiting your options in life? How would you direct your will? Your desire? Your drive to achieve? I met our guest...
EP57: IAQ Devices & Technology Perspectives from the Isle of Man with Big Clive 16.07.2021 45:29
"Any sufficiently advanced technology is indistinguishable from magic." Arthur C. Clarke The topic of how to manage and improve indoor air quality comes up a lot lately. With all this interest come the offer of many "solutions" and devices. Wish you could learn the back story of and technology inside some of these devices? Ever wonder about the international perspectives on the topic of IA...
EP 56 School IAQ and Astrophotography with Steve Pascuzzo from Testo (Jan 2021) 09.07.2021 40:06
"Astronomy's much more fun when you're not an astronomer." Brian May COVID-19 has impacted the way people interact for many months. Especially the way people interact with each other in spaces outside their homes. What do the air quality scientists have to say about the management of indoor air? What kind of measurements are significant and important? Will this pandemic impact the way we d...
EP55: SpohnHome: The Energy Vanguard Investigates (Apr. 2021) 02.07.2021 45:30
"When you are enthusiastic about what you do, you feel this positive energy. It's very simple." Paulo Coelho The construction is finished. Bill and Mairlyn moved in months ago. What's it been like for Bill living inside his theories? Were any late course corrections necessary? Any regrets? In this podcast, recorded in April 2021, our friend Allison Bailes (The Energy Vanguard) becomes host...
EP54: SpohnHome Interview of Bill Spohn hosted by Nate Adams of HVAC 2.0 (May 2020) 25.06.2021 50:20
"Have nothing in your house that you do not know to be useful, or believe to be beautiful." William Morris His head has been wrapped up in building and HVAC performance since the late 1980s. How does he sort through bringing his personal vision for his own home to reality? What's it like actually living inside your theories? In this podcast, recorded in May 2020, our friend Nate Adams (fro...
EP53: Pearl Certification for HVAC- Throw Shade on Your Competition with Cynthia Adams & Robin LeBaron 18.06.2021 42:08
"Vision is the art of seeing what is invisible to others." Jonathan Swift Listeners to this podcast know, it is often very hard to explain what it is we do. When I try to explain this, people's' eyes and ears glaze over as I get into the technical descriptions of the invisible elements that make a home more comfortable, safer, healthier and energy efficient. (Wait, can an ear actually glaz...
EP52: Technology in HVAC, Driving Contractor Wins with Joe Samel (SensiPredict - Emerson) & Sam Troyer (Comfort Zone, Inc) 11.06.2021 27:08
"Data, data everywhere, and not a place to sync!" Eric Preston Sensor data and oftentimes, the corresponding analytics are popping up everywhere you look. What is happening in the HVAC world? In newer systems there are some options; most on the high end. But are there any reliable solutions that address more basic systems and the aftermarket? Here comes SensiPredict by Emerson. Emers...
EP51: NH Saves NetZero Home Challenge (Jan 2021) with Joe Rando and Adam Nyborg 04.06.2021 36:36
" Talent wins games, but teamwork and intelligence wins championships. " Michael Jordan Years ago if someone said to me: "I'm building a Net Zero home." I would have thought, "What are they giving up doing so?" Fast Forward to 2021: In addition to me living in a prospective Net Zero Home (check out other episodes of this podcast), there are now several national Net Zero competitions with u...
EP50: Why you should attend the National Home Performances Conference with Steve Byers (EnergyLogic) & Peter Troast (EnergyCircle) 25.03.2021 18:12
"Tell me and I forget. Teach me and I remember. Involve me and I learn Ben Franklin Bill is joined by Peter Troast of the Energy Circle and Steve Byers of Energy Logic to share their many reasons for attending the National Home Performance Conference year after year. Sign up for the 2021 National Home Performance Conference ( all virtual) now at: https://events.building-performance.org/national...
EP49: A unique air quality monitor for the home with Ben Reed (TZOA) & Kaleb Saleeby (HVAC School) 05.02.2021 53:22
"I've been struck again and again by how important measurement is to improving the human condition." Bill Gates Lend us your ears as Kaleb and Bill have a very fun interview with Ben Reed, VP of Products at TZOA, a relative new comer to the world of measurement products. TZOA's approach with the Haven product is totally unique: a retrofittable residential air quality monitor that lives inside...
EP48 Buildings & Health. An interview with Dr. Stephanie Taylor 27.11.2020 34:43
"He who has health, has hope; and he who has hope, has everything." Thomas Carlyle Bill was honored to welcome Dr. Stephanie Taylor to the podcast where she shares the fascinating story of her career path from medicine to architecture to crusading for better building health by bridging these professional silos. He had a great time interviewing Stephanie, plumbing the depths of her knowledge and...
EP47 Insights from ENCON: A Unique, Generational Mechanical Contractor 20.11.2020 28:10
"The family is one of nature's masterpieces." George Santayana Bill is joined Marty and David Indursky, a father and son team that have built Encon, an award winning, NJ-based HVAC/building solutions company. Hear how David has reinvigorated the company by implementing modern technology techniques after he took it over from his father who founded ENCON in 1968. They share best practices and wh...
EP46 A new refrigerant born from science and sweat with Peter Capuciati Founder of Bluon 01.05.2020 37:14
"I grew up thinking that a research scientist was a natural thing to be." Stephen Hawking There's physical science. And there's a kind of science as to how the mind works and how people achieve their dreams. Blend one-part plasma fusion physics with one-part commercial real estate and stir this in an open and creative mind and you have Peter Capuciati, the Chairman and Founder of Bluon and the gue...
EP45 Making Homes Perform better – HVAC tips with John Semmelhack 06.03.2020 33:48
"The only think I have learnt over the years is that if you enjoy your work and put in best efforts it will show. If you follow this process, things work out. But if you go chasing a formula, success will elude you." Mahesh Babu While building his own house, John Semmelhack 's innate curiosity grew as he researched the best was to design and build a home. This lead him to start his own busines...
EP44 What's new in Home Performance 2.0 with Nate Adams 30.08.2019 55:28
"True genius lies not in doing the extraordinary things, but in doing ordinary things extraordinarily well." General Louis H. Wilson, Jr. Building science principles are few and fairly straightforward; ordinary, perhaps. HAM: A lot of it amounts to control the flow of Heat, Air and Moisture. But, like so many things in this world, the devil is in the details. Listen in as I chat with my good f...
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