Building HVAC Science

Pithy quotes

1. "Your product can be great, but if you're hard to work with, nobody's going to buy it."
   
   

2. "Take a deep breath, go back to the fundamentals, and ask: what's the biggest value I can add today?"
   
   

3. "You're allowed to sa...

"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 fr...

Pithy quotes

1. "We do our job well if the homeowner forgets about us, because the system just works."
   
   

2. "The bar is so low in some homes that doing a quality install can genuinely change someone's life."
   
   

3. "The best way to learn i...
   

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...

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 biggest ea...

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...

Quotes from the episode:

"Better isn't a goal, it's a direction."

"HVAC can feel like a house of mirrors for homeowners, and the cure is transparency plus measured results."

"We're not trying to find the perfect contractor. We're trying to find the contractor who keeps learning and won't get complacent."

In this episode of the Building HVAC Science Po...

Quotes from the episode:

"Good enough isn't a fixed point. It's a moving target shaped by goals, expectations, and consequences."

"Perfection can push us forward, but it can also quietly pull us off track."

"If I delivered what I promised, in the time promised, using the resources promised, that is good enough for me."

"The real skill is knowing when extra effort ...

Quotes from the Episode:

"Innovation in HVAC isn't one big breakthrough. It's a series of quieter shifts that slowly change how we work."

"The future of HVAC depends on the people who measure, verify, and continuously improve."

"Collecting data is getting easier. Interpreting it well is where the real value lives."

"True innovation isn't about chasing trends. It's...

Quotes from the Episode:

"Good building systems don't start with equipment—they start with a plan and a thoughtful process."

"Most comfort problems aren't equipment problems; they're building problems we haven't taken the time to understand."

"If even one episode helps someone take the next step in their career, then it's all been worth it."

Episode 250 of the Build...

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 down with Dave Massner from Sensorcon, a long...

"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, Aaron Husak. Aaron traces his winding path from ...

"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 his co-host, Bill Spohn, about the evolution ...

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." — Carl Sagan

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 PHIUS. At the same time, Al recounts his journey from aspiring car enginee...

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 Brant...

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 installa...

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, Thalo Lab...

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 it for hot water while cooling.

The system keeps all refrig...