Building HVAC Science Podcast

10/12/2026

Is a faster service call really faster if it leads to a callback?

In episode 291 of the Building HVAC Science podcast, Brian Feenie of Shift Logic joins Bill Spohn to discuss why taking complete system measurements can actually save time by reducing misdiagnoses and callbacks.

Hear the full conversation at BuildingHVACScience.com or wherever you get your podcasts.

Building HVAC Science is presented by TruTech Tools, LTD.

10/07/2026

Big shout out to my newest top fans! 💎

Derek Aarstad

Drop a comment to welcome them to our community,

10/06/2026

Bill entered iHeart Radio’s TopHost contest for podcasters!

If you are so moved, you can vote for him daily for free.

And you can apply more votes if you donate to the Children’s Charity attached to this by the Ryan Seacrest Foundation.

He’s at #3 in his group now and they will only pass thru the top 20 on Oct 15!

And please share as you see fit!

Will Bill Spohn be a guest on an episode of On Air with Ryan Seacrest, win $25,000, and lead a podcast produced by iHeartRadio?

10/05/2026

“The person that's best doing the plumbing is usually not the best person selling the plumbing.”

In episode 290 of the Building HVAC Science podcast, Bill Spohn talks with Max Hicks, founder of Reliant Plumbing, about why separating sales from installation can make sense as a service company grows.

At Reliant, smaller jobs can still be handled as sales-service, while larger jobs are typically sold first and then handed off to an installer.

Hear the full conversation at BuildingHVACScience.com or wherever you get your podcasts.

Building HVAC Science is presented by TruTech Tools, LTD.

09/28/2026

$20,000–$30,000 in HVAC equipment, and the comfort problem was still there.

Spencer Rosen shares a home-performance example where adding one return made the room cool two or three times more effectively. The takeaway: comfort depends on the whole system, not just the equipment.

In episode 289, Bill Spohn talks with Russ King, Connor King, and Spencer Rosen about load calculations, the building envelope, and better HVAC design.

Hear the full conversation at BuildingHVACScience.com or wherever you get your podcasts.

Building HVAC Science is presented by TruTech Tools, LTD

09/21/2026

“You can't really separate good air quality from good HVAC performance.”

In episode 288, Bill Spohn talks with Zach Ortwine of Southeast Clean Air Solutions LLC about why good indoor air quality and good HVAC performance need to be considered together.

Zach explains how his experience with National Comfort Institute and NADCA: The HVAC Inspection, Cleaning and Restoration Association changed the way he approaches duct cleaning: not just treating what's there, but understanding what caused it to get that way in the first place.

Hear the full conversation at BuildingHVACScience.com or wherever you get your podcasts.

Building HVAC Science is presented by TruTech Tools, LTD

09/14/2026

“You don't know what you don't know.”

Amanda Hatherly of Building Performance Institute, Inc. (BPI) has seen experienced HVAC professionals come into whole-house training confident in their trade—and leave looking at the house differently.

Insulation, air sealing, and the mechanical system stop looking like separate pieces and start becoming part of the same bigger picture.

Amanda joins Bill Spohn in episode 287 of the Building HVAC Science podcast to discuss the growing crossover between HVAC and building performance.

Hear the full conversation at BuildingHVACScience.com or wherever you get your podcasts.

Building HVAC Science is presented by TruTech Tools, LTD

09/10/2026

“What makes a high-performance building? It's just good building sense.”

In episode 286 of the Building HVAC Science podcast, James Childre of RedPoint LLC joins Bill Spohn to talk about what happens when the industry already knows how to build better—but the same failures keep showing up.

After 21 years of testing and evaluating buildings, James argues that the challenge isn't just knowing what works. It's giving contractors the confidence to put that knowledge into practice.

Hear the full conversation at BuildingHVACScience.com or wherever you get your podcasts.

Building HVAC Science is presented by TruTech Tools, LTD

09/01/2026

Nominate the trainer you found most influential!

08/31/2026

Show the homeowner the problem instead of asking them to take your word for it.

In episode 285 of Building HVAC Science, Ken Allison of IDI: Insulation Distributors Inc. talks about using infrared images to help homeowners actually see the envelope problems you’re describing.

Bill Spohn and Ken dig into air leakage, insulation, comfort, and how HVAC contractors can recognize problems that go beyond the equipment.

Building HVAC Science is presented by TruTech Tools, LTD.

Listen to the full episode at https://www.buildinghvacscience.com/ep285-you-cant-control-a-system-thats-open-ken-allison-on-hvac-and-the-building-envelope-august/ or wherever you get your podcasts.