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Artwork for Building HVAC Science

Building HVAC Science

Bill Spohn
HVAC
Energy Efficiency
Building Science
Indoor Air Quality
HVAC Industry
Heat Pumps
Building Performance
HVAC Systems
HVAC Education
Dehumidification
Trutech Tools
HVAC Technology
HVAC Design
Air Quality
Electrification
Measurequick
GRIT Foundation
Artificial Intelligence
AHR Expo 2026
Customer Service

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 ... more

PublishesWeeklyEpisodes278Founded9 years ago
Number of ListenersCategories
ScienceEducationPhysicsHow To

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Artwork for Building HVAC Science

Latest Episodes

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... more

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."

"Elect... more

YouTube

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 hidde... more

YouTube

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 col... more

YouTube

Key Facts

Accepts Guests
Accepts Sponsors
Contact Information
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Number of Listeners
Find out how many people listen to this podcast per episode and each month.

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People also subscribe to these shows.

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Recent Guests

Cy Porter
CYFY Home Inspections founder, Arizona-based new-build warranty inspector
CYFY Home Inspections
Episode: EP276 When "Passed Inspection" Isn't Good Enough with Cy Porter (May 2026)
Kieren McCord
Research Scientist at Pacific Northwest National Laboratory
Pacific Northwest National Laboratory
Episode: EP275 The Sound of Better Buildings with Kieren McCord (May 2026)
Dan Stradford
Founder/lead at Action Duct Cleaning
Action Duct Cleaning
Episode: EP273 Think Like an Air Molecule with Dan Stradford (May 2026)
Brynn Cooksey
Speaker invited to the live session
HVAC-U
Episode: EP272 Live from NHPC 2026: Where HVAC, Buildings, and People Intersect With Brynn Cooksey from HVAC-U PART 2 (April 2026)
Rich Benninghoff
CEO, Malco Group (formerly Malco Tools)
Malco Group
Episode: EP270 Scaling with Simplicity: EOS, Growth, and the Malco Evolution With Rich Benninghoff (May 2026)
Rhydon Atzenhoffer
Host of the HVAC R&D Podcast
HVAC R&D Podcast
Episode: EP269 Collaboration Over Competition: A New Playbook for Contractors With Rhydon Atzenhoffer (April 2026)
Austin Riesenberger
Founder of Swerv Air
Swerv Air
Episode: EP268 Fresh Air Without the Penalty: Reinventing Ventilation for Real Homes With Austin Riesenberger from Swerv (April 2026)
Adam Dykstra
Founder of FM Hero
FM Hero
Episode: EP267 Why Refrigerant Compliance Is Becoming a Profit Center With Adma Dykstra (March 2026)
Bryan Orr
Co-owner / leader in a family business
Kalos / Kalos Management
Episode: EP266 Legacy, Ego, and the Baton Pass: Real Talk on Family Business Succession With Bryan Orr, Robert Orr, Bill Spohn and Billy Spohn (February 2026)

Hosts

Bill Spohn
Host of Building HVAC Science; co-owner of TruTech Tools; long-time industry practitioner
Eric Kaiser
Co-hosts; contributing host with expertise in building science and HVAC education

Reviews

4.7 out of 5 stars from 91 ratings
  • Great Informative Podcast

    I love the guests and information provided in this podcast! Thank you, and great work guys!

    Audible
    5
    Lukasz Koplejewski
    United States7 months ago
  • I love the guests and information provided in this podcast! Thank you, and great work guys!

    Audible
    5
    Lukasz Koplejewski
    United States7 months ago
  • Very interesting conversations

    Podcast Addict
    5
    SCSierraDave
    2 years ago
  • Bill a man of his words

    We had a chat threw email and asked about Adam and Neil and has come threw!!! Great listens and great tools from trutech tools!!

    Apple Podcasts
    5
    Jon harrell
    United States3 years ago
  • Keep up the great work. I love the HVAC and building science blend. Well done

    Audible
    5
    David Daher
    United States4 years ago

Listeners Say

Key themes from listener reviews, highlighting what works and what could be improved about the show.

Listeners value real-world testing, teachable moments, and practical advice for contractors and educators.
Accessible yet deep, with practical, real-world examples.
Professional and insightful on building science and HVAC practices.

Chart Rankings

How this podcast ranks in the Apple Podcasts, Spotify and YouTube charts.

Apple Podcasts
#128
United States/Education/How To
Apple Podcasts
#137
Hong Kong/Education/How To
Apple Podcasts
#138
South Korea/Education/How To
Apple Podcasts
#177
India/Education/How To
Apple Podcasts
#229
Denmark/Education/How To

Talking Points

Recent interactions between the hosts and their guests.

EP276 When "Passed Inspection" Isn't Good Enough with Cy Porter (May 2026)
Q: What are some of the most common defects you see that are missed at closing?
Gas leaks, improper air sealing, moisture intrusion from tubs/showers, and misinstalled components are frequent, with leaks often existing before the meter or behind walls, highlighting the need for thorough testing and multiple trade awareness.
EP276 When "Passed Inspection" Isn't Good Enough with Cy Porter (May 2026)
Q: Why did you get into new-build warranty inspections, and how did your background lead you here?
I transitioned because I saw recurring issues in new construction and learned Arizona's warranty framework, which revealed how defects can persist from day one and be missed at closing; the role of qualified inspectors and energy auditing became essential to protect homeowners.
EP273 Think Like an Air Molecule with Dan Stradford (May 2026)
Q: What examples illustrate the energy benefits of cleaning ducts?
Energy studies documented drops in fan energy, static pressure, and compressor energy across multiple sites, including reductions of 44% in blower energy in Vermont and substantial compressor energy reductions after cleaning different components.
EP273 Think Like an Air Molecule with Dan Stradford (May 2026)
Q: How should a contractor be evaluated if a building owner is considering duct cleaning?
Look for NADCA membership and certification, service scope aligned with large contracts, references and insurance, and a long track record. The company should demonstrate outcomes through documented energy and airflow improvements from prior cleanings.
EP273 Think Like an Air Molecule with Dan Stradford (May 2026)
Q: What components matter most when cleaning a duct system, and how do NADCA standards relate to this?
Studies showed that not all components are equally impactful; returns, air handlers, coils, and both supply and return ducts each affect performance differently, with significant energy and airflow changes when cleaned. NADCA standards help ensure technicians are certified and using appropriate cleaning protocols.

Audience Metrics

Listeners, social reach, demographics and more for this podcast.

Listeners per Episode
Gender Skew
Location
Interests
Professions
Age Range
Household Income
Social Media Reach

Frequently Asked Questions About Building HVAC Science

What is Building HVAC Science about and what kind of topics does it cover?

A practical, field-tested show that blends hands-on HVAC and building science with human factors, leadership, and entrepreneurship. Across episodes, listeners encounter real-world workflows, test-driven diagnostics, and case studies—from shell-first building performance to electrification, refrigeration compliance, and multi-brand growth. A standout quality is the hands-on posture: tools, testing methods, and informed customer conversations sit alongside leadership, mentorship, and workforce development. The program often features practitioners and educators who share actionable takeaways for improving comfort, energy efficiency, and business outcomes, making it valuable for technicians, contractors, and managers seeking deeper technical an... more

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How many listeners does Building HVAC Science get?

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To see how many followers or subscribers Building HVAC Science has on Spotify and other platforms such as Castbox and Podcast Addict, simply upgrade your account. You'll also find viewership figures for their YouTube channel if they have one.

Which podcasts are similar to Building HVAC Science?

These podcasts share a similar audience with Building HVAC Science:

1. HVAC School - For Techs, By Techs
2. Did You Know?-The ESCO HVAC Podcast
3. The Build Show Podcast
4. AC Service Tech Answers Podcast
5. The Home Service Expert Podcast

How many episodes of Building HVAC Science are there?

Building HVAC Science launched 9 years ago and published 278 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

How do I contact Building HVAC Science?

Our systems regularly scour the web to find email addresses and social media links for this podcast. We scanned the web and collated all of the contact information that we could find in our podcast database. But in the unlikely event that you can't find what you're looking for, our concierge service lets you request our research team to source better contacts for you.

Where can I see ratings and reviews for Building HVAC Science?

Rephonic pulls ratings and reviews for Building HVAC Science from multiple sources, including Spotify, Apple Podcasts, Castbox, and Podcast Addict.

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How do I access podcast episode transcripts for Building HVAC Science?

Rephonic provides full transcripts for episodes of Building HVAC Science. Search within each transcript for your keywords, whether they be topics, brands or people, and figure out if it's worth pitching as a guest or sponsor. You can even set-up alerts to get notified when your keywords are mentioned.

What guests have appeared on Building HVAC Science?

Recent guests on Building HVAC Science include:

1. Cy Porter
2. Kieren McCord
3. Dan Stradford
4. Brynn Cooksey
5. Rich Benninghoff
6. Rhydon Atzenhoffer
7. Austin Riesenberger
8. Adam Dykstra

To view more recent guests and their details, simply upgrade your Rephonic account. You'll also get access to a typical guest profile to help you decide if the show is worth pitching.

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