Building HVAC Science

Quotes from the episode: "Technology does its best work when it turns invisible problems into obvious next steps." "Most buildings are already telling us what they need. The trick is finally learning how to listen." "You can't optimize what you can't see, and old buildings have been hiding their stories in boiler rooms for decades." In this episode of Building HVAC Science, Bill speaks with Heathe...

Quotes from the episode: "Heat pumps can't meet their promise if they're not properly maintained." "Vacuuming the filter matters, but it is not the same thing as deep cleaning the system." "If it has a coil and a fan, we can clean it." "Electrification only works as intended when the equipment keeps working as intended." In this episode of Building HVAC Science, Bill talks with Gabriel Erde-Cohen,...

Quotes from the episode: "Passed inspection is not the same as built correctly." "The best inspectors keep learning, because no one person masters every trade, every code, and every overlap." "Small defects do not stay small when they are hidden behind walls, ceilings, and warranty paperwork." In this episode of Building HVAC Science, Bill Spohn talks with Cy Porter of CYFY Home Inspections, an Ar...

Quotes from the episode: "The tighter your envelope, the more attention you have to pay to ventilation and indoor air quality." "The acoustics of the ordinary rarely gets attention." "There's so much good work being done, so much data being collected, and oftentimes it doesn't leave the hard drive." "Noise annoyance may be one of the things people are most passionate about." In this episode of the...

Quotes from the episode: "Stop trying to HVAC your way out of bad buildings, and your results will market themselves." "The quality work and word of mouth are real when you're doing building science-backed work with quality staff." "Come with problems you're actively trying to work on and meet others who can help you work on them." In this episode of Building HVAC Science, Bill welcomes back Brent...

Quotes from the episode: "Ducts matter. Nobody cares much about them until something goes wrong." "HVAC systems are designed assuming clean, bare sheet metal." "Even a small layer of dust can become a mountain range to an air molecule." "Think like an air molecule." In this episode, Bill speaks with Dan Stradford of Action Duct Cleaning about what really happens inside HVAC duct systems over time...

Quotes from the episode:   "High-performance homes are not about the equipment. They are about the outcomes for the people inside."   "The gap is not in technology. It is in execution and understanding."   "The contractors who win are the ones who connect building science to real human experience."   Recorded live at the 2026 National Home Performance Conference in Columbus, this episode of the Bu...

Quotes from the episode:   "High-performance homes are not about the equipment. They are about the outcomes for the people inside."   "The gap is not in technology. It is in execution and understanding."   "The contractors who win are the ones who connect building science to real human experience."   Recorded live at the 2026 National Home Performance Conference in Columbus, this episode of the Bu...

Quotes from the episode:   "We're not just selling tools anymore — we're building solutions that make the trade pro's life easier."   "EOS gave us the discipline to focus on what really matters when everything is pulling at you."   "(In golf,) you can't hit everything with a driver — great businesses know which tool to use and when."   In this episode, Bill talks with Rich Benninghoff about Malco'...

Quotes from the episode:   "Great equipment doesn't build a reputation. Great technicians do."   "Use AI like a tool, not a crutch. The work still belongs to the person in the attic."   "We're missing mentorship across generations, and that gap is costing the trades more than we realize."   In this episode, Bill sits down with Rhydon Atzenhoffer, host of the HVAC R&D Podcast, for a wide-ranging co...

Quotes from the episode: "If you're building something new, it has to be better in almost every way or it won't catch on."   "The stuff that's bad inside your home doesn't filter out, you have to move it out."   "We stopped over-modeling and just started testing in the real world as fast as possible."    This episode of the Building HVAC Science Podcast features Austin Riesenberger, founder of Swe...

Quotes from the episode: "It's a solution to a problem people don't even know they have."   "Compliance is no longer just paperwork. It's becoming part of how smart contractors protect margin and keep access to refrigerant."   "What GPS did for traffic, shared HVAC documentation could do for equipment history, refrigerant tracking, and accountability."   In this episode of the Building HVAC Scienc...

Quotes from the episode: "The emotional side of letting go and the identity shift is something nobody really warns you about."   "Clarity is kindness, especially when the chips are down." "Intelligence gets beaten by emotional regulation and patience every day." (Tommy Mello)   This episode is a true "collab" between Building HVAC Science and HVAC School Podcasts, with Bill Spohn Sr. and Bill "Bil...

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...

"There are people who teach for income, and people who teach for outcome." "You want to grow an industry, you can't ignore half America." "Become an unsung hero, mentor someone, and give back to the industry you love." In this episode of Building HVAC Science, Bill and Eric are joined by Renee Tomlinson and Howard Weiss from ESCO Institute (and HVAC Excellence) to talk about a theme that does not...

"The more you know, the more you're worth and the harder you are to replace." "Just because you're a great technician doesn't mean you're ready to run a business." "You can't buy the satisfaction of helping someone you may never meet." Bill sits down with Rick Diermeyer, better known to many in the trade as the face behind the HVACR Survival YouTube channel. Rick shares the origin story of his cha...

Episode Quotes: "Airflow isn't good. It's measured." "Most pushback isn't 'I won't.' It's 'I'm afraid I'll mess it up.'" "This is a people industry, by people, for people." JT Stewart joins Bill Spohn and Eric Kaiser to talk about how he went from long-term care nursing to HVAC, thanks to a red Chevy Ventura van, a ladder on top, and a "let's go fix some stuff" invitation. Today JT is an HVAC cons...

"Listen first, talk last." "Integrity costs something, you've got to be willing to pay it." "If I'm going to fail, I'm going to go down fighting." In this episode of the Building HVAC Science Podcast, Bill and Eric sit down with Don Gillis, a longtime industry pro with a career spanning roles as an installer and service tech, service manager, outside sales, corporate training, and now building tec...

Quotes from the episode: "If you're not measuring, you're just arguing with opinions." "The tools got better, but what really changed is the technician mindset."   "We used to diagnose systems one reading at a time. Now we see the whole story live."   Recorded live at 9:00 a.m. on Day 1 of the AHR Expo 2026 in Las Vegas, this episode of the Building HVAC Science Podcast captures the spirit of the...

Pithy quotes "Your product can be great, but if you're hard to work with, nobody's going to buy it." "Take a deep breath, go back to the fundamentals, and ask: what's the biggest value I can add today?" "You're allowed to say, 'I don't know. I'll figure it out for you.' People respect that more than the runaround." Brad Adcox joined the Building HVAC Science podcast with Bill and Eric and, within...

"AHR isn't just a product show, it's where you see the future of the trade taking shape in real time." "Training, technology, and community are finally moving at the same speed." "Exhausting in the best possible way, that's how you know it was a great show." Fresh off the floor of AHR Expo 2026 in Las Vegas, the TruTech Tools team jumps on the mic to share firsthand impressions from one of the HVA...

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 Sudhaka...

Episode quotes: "What you put into this, you get out of this in multiples." "It's not about sales. It's about learning, relationships, and leaving your ego at the door." "Use AI responsibly, but keep the humans involved. The humans are what keep it honest." In this episode of the Building HVAC Science Podcast, Eric Kaiser, Bill, and the TruTech Tools crew (Billy Spohn, Ginny Hebert, and Josh Crawl...

Notable quote from the episode: Make it as simple as possible, but not simpler. In this episode, Eric Kaiser sits down with mechanical engineer Tony Amadio, the founder of True Loads, to talk about what actually makes residential load calculations succeed or fail in the real world. Tony shares how his work is split between builders, architects, project managers, and HVAC contractors, and why the b...

QUOTES from the episode: "Most building failures aren't mysterious. They're just ignored fundamentals." "If you demand museum-level humidity, you're no longer building a house. You're building a museum." "Moisture meters don't solve problems. They show you patterns. The thinking solves the problem."   In this episode of the Building HVAC Science Podcast, Eric Kaiser is joined by Kohta Ueno, princi...