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Building HVAC Science — Education
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 science communities. Each episode blends field experience with broader industry perspective, helping professionals stay ahead of trends, sharpen their skills, and build stronger businesses.

Topics include:

New tools, technologies, and field practices
Real-world case studies and lessons learned
Building performance, comfort, and indoor air quality
Industry innovation, workforce development, and the human side of the trades

Whether you’re a technician in the field, a business owner, a manufacturer, or simply curious about how buildings breathe and perform, Building HVAC Science connects you with the ideas and voices moving the industry forward.

Listen on Apple Podcasts, Spotify, or wherever you get your podcasts.

This show is a production of TruTech Tools®, LTD.

Latest Episodes:

EP120 Mindset and determination made the Mentor with Trevor Matthews (June 2023) Jun 16, 2023

Show notes

Trevor Matthews shares with us his fascinating life story: from the moment he shifted his life interests from travel and surfing into the trades and as it led to forming the Refrigeration Mentor a training, education and mentorship program for the refrigeration trade.

Some notable thoughts from this episode:

"You can get a handle on anything with your mindset."

"Be prepared to pay the price in time and effort to get what you want."

"Important small experiences you have become your own."

"You need to put in the reps: reading and studying to reach your goal."

"Stay Focused. Don't drift."

Trevor's links:

Website: www.refrigerationmentor.com

Contact: https://refrigerationmentor.com/contact-us/

YouTube: https://www.youtube.com/@RefrigerationMentor

Trevor's LinkedIn: https://www.linkedin.com/in/tejmatthews/

This episode was recorded in June 2023.

EP119 There's an ELK running around loose at TruTech! with Eric Kaiser (June 2023) Jun 09, 2023

Show notes

The 349 common connections Eric Kaiser and I share in LinkedIn speak a lot to the common perspectives we share.

Yet, it's in the differences, in the weeds, where the conversation gets interesting.

Please welcome Eric Kaiser as TruTech Tool's new Industry Engagement manager. And new co-host of this podcast.

We call Eric the ELK, his initials, to differentiate him from my Co-Owner, Eric Preston.

Let's get to know him a little better in this episode.

Eric's links:

Email: EKaiser@TruTechTools.com

Eric's LinkedIn: https://www.linkedin.com/in/eric-kaiser-323a1563/

Facebook Group: https://www.facebook.com/grapevinetv/

YouTube video on Entering the trades: https://www.youtube.com/watch?v=sqsSiT5dnRk

The National Comfort Institute www.NCIhvac.com

HVAC School Symposium: https://hvacrschool.com/events/4th-annual-hvac-r-training-symposium/

The Energy Vanguard blog: Allison Bailes: www.energyvanguard.com

Building Science Corp seminars: https://buildingscience.com/upcoming-events-and-training

This episode was recorded in June 2023.

EP118 Building a thriving business with attentiveness and determination with Jeremy Begley (May 2023) Jun 02, 2023

Show notes

Jeremy's been studying the details for many years.

Details like:

Building and energy codes are becoming more and more stringent.

Green building programs are driving more and more high-end construction.

Products and construction techniques are rapidly evolving.

He's also paid attention to what is sorely needed and missing.

That's why he's helped to define the full HVAC use-case: requirements, performance, technology, architectural integrity, installation, and maintenance.

Listen in as Jeremy give clues and hints on how we can all do better in HVAC design.

Jeremy's business: https://www.hvacdesignpartners.com/ Jeremy's LinkedIn: https://www.linkedin.com/in/jdbegley/

Links to the "order of Operations for Heat Pumps" blog posts

https://information.insulationinstitute.org/blog/order-of-operations-matters-with-heat-pumps https://information.insulationinstitute.org/blog/its-the-order-of-operations-with-heat-pumps-part-2

A couple of Jeremy's favorite resources:

The National Comfort Institute www.NCIhvac.com

The Energy Vanguard blog: Allison Bailes: www.energyvanguard.com

Bryan Orr's HVAC School: www.HVACRSchool.com

The Comfort Institute: www.comfortinstitute.org/

ACCA: https://www.acca.org/certification

This episode was recorded in May 2023.

EP117 From Aerospace to Aeroseal Zac Reed shares fresh insights into residential duct and air sealing (May 2023) May 26, 2023

Show notes

Zac Reed, Product manager at Aeroseal, joins us today to share the technology, history and applications for Aeroseal products.

Aeroseal was developed in Dr. Mark Modera's California garage in 1993.

For the first time ever, it was possible to seal leaks and holes in air ducts from the inside out. Up until that time, the only way to seal ductwork was messy, labor intensive, and not an option for most homeowners.

The simplest explanation for the Aeroseal process is fix-a-flat for homes: both ducts and the home structure.

Aeroseal's mission is to help homeowners retain their "expensive air": which delivers comfort, healthy air, and substantial energy savings.

Contractor's interested in getting trained and becoming Aeroseal dealers can learn more about this and the products at www.Aeroseal.com

Learn more on Aeroseal's YouTube channel: YouTube

Zac's LinkedIn: https://www.linkedin.com/in/zac-reed-060a46225/

This episode was recorded in May 2023.

EP116 Another of Bill's monologues (May 2023) May 12, 2023

Show notes

Listen in as Bill chats with… himself!

He shares some recent, personal and business encounters and discussions that left an impression on him.

We hope you find them interesting.

This episode was recorded in May 2023.

EP115 Advancements in technology through the eyes of Ben Walker at RETROTEC (April 2023) May 05, 2023

Show notes

Listen in as Bill chats with Ben Walker, the Co-CEO of Retrotec about a wide range of technology related topics from sensors to programming to AI-Artificial Intelligence.

Ben shares with us his experiences over his career in tech companies, primarily with Retrotec, one of TruTech's major vendors of air tightness and air flow testing gear.

We learn about the history of the digital manometer at Retrotec, as well as the important topic of enclosure integrity testing and how to manage large building testing.

Other topics of note include the move to DC motors, rCloud an app based test data platform (and so much more), the long list of new features on the DM32X digital manometer and more.

Retrotec products: https://www.trutechtools.com/retrotec

THE ALL NEW Retrotec DM32X digital gauge: https://www.trutechtools.com/retrotec-dm32x-digital-gauge.html

Ben's LinkedIn: https://www.linkedin.com/in/ben-walker-4a05901/

As Ben suggests, try ChatGPT yourself at www.openai.com

This episode was recorded in April 2023.

EP114 The power of Big Picture Thinking with Chris Stephens (April 2023) Apr 21, 2023

Show notes

In this episode, Bill interviews Chris Stephens Refrigeration Business owner and Social Media Influencer extraordinaire!

There are so many nuggets to mine out of this episode, I hope you spend the time to listen to all of it.

Chris is truly a multidimensional person, not like in the SciFi way though where he can walk through walls.

His Big Picture concept, which he uses in all aspects of his life can be summarized as:

Slow Down – Pause, allow you mind to catch up with where you are
Take a Step Back - Think about what is going on
Look at the Big Picture - Summarize the pros and cons of the various paths and decide if a short cut is worth it in the long run.

Additionally, we talk about:

The lost art of evacuation
The Genesis of the 2 social media projects he started/ is in: HVACR Videos and HVAC OverTime
His personal home performance project/journey
His perspectives on electrification
And much more

Chris' business: https://www.jvsrefrigeration.com/

Chris' LinkedIn: https://www.linkedin.com/in/chris-stephens-a414651a6/

His 2 YouTube Channels:

https://www.youtube.com/c/HVACRVIDEOS

https://www.youtube.com/@HVACOvertime

This episode was recorded in April 2023.

EP113 Mold Restoration: An Insider's view with Michael Rubino of Home Cleanse (March 2023) Apr 07, 2023

Show notes

In this episode, Bill interviews Michael Rubino founder of HomeCleanse.com

We discuss the technical & business aspects of mold removal and where it fits in to addressing and solving mold problems in a home or building.

Michael is a forward thinker, having created his own mold remediation school for employees.

At the school, they utilize the concept of I Do, We Do, You Do, that is you must be able to execute like the company experts in order to graduate to doing field/customer work.

He is also author of The Mold Medic: An Expert's Guide on Mold Removal and a council-certified Mold Remediator by IICRC and ACAC and a contributing member, sponsor, and speaker for the Indoor Air Quality Association. We learn about how his growing up in the construction and remediation industry, influenced his current work.

Michael's book:

https://www.amazon.com/Mold-Medic-Experts-Guide-Removal-ebook/dp/B08FPCTWNZ

Michael's LinkedIn: https://www.linkedin.com/in/michaelrubino88/

His website: https://www.themichaelrubino.com/

This episode was recorded in March 2023.

EP112 Being Humble, Persistent, and Curious in the Trades With Adam Mufich (March 2023) Mar 30, 2023

Show notes

In this episode, Bill interviews Adam Mufich, AKA A-Team Adam.

You may know Adam from his video podcast, HVAC OverTime, which is a big collaboration he does with his friends Chris Stephens (HVACR Videos on YouTube), Bill Russell (Curious HVAC Guy on YouTube) and OT Joe (HVACR OverTime North on YouTube)

In their words: "We never sugar coat anything; we tell it like it is. If you want the real uncensored hot takes on the state of the industry, come hang out live every Friday at 9:00pm EST on both YouTube and Facebook."

https://www.facebook.com/groups/775287052979835

Adam describes his personal journey in the trades, where is has gotten him and where he is headed.

Adam's LinkedIn: https://www.linkedin.com/in/adam-mufich-5225055a/

Adam recently wrote a very interesting blog post we mention in the interview:

https://hvacrschool.com/dunning-kruger-in-hvac/

He's also one of the hosts of the new Cooler Heads Podcast:

https://www.iheart.com/podcast/269-the-cooler-heads-podcast-103621990/

You should also check out the YouTube Channel of the celebrity guest Adam mentions, Big Clive: https://www.youtube.com/@bigclivedotcom

969,000 viewers with 2,100 videos – I'm pretty sure you will find something of interest!

Other links we mention:

https://www.hvac20.com/#/

https://www.youtube.com/@HVACUncensored

https://www.natethehousewhisperer.com/

This episode was recorded in March 2023.

EP111 Putting The V back in HVAC and why you should care With Kevin Hart (March 2023) Mar 24, 2023

Show notes

In this episode, Bill chats with Kevin Hart, the founder of HAVEN, a start up that makes a unique IAQ sensor/control system.

Hear from Kevin about his background as an electrical contractor and how he came up with the idea for Haven, as well as all the iterations the product has been through.

In the episode he describes RDCV: Residential Demand Control Ventilation and why it is important for contractors and homeowners to understand details on this subject.

Learn how a simple chemical compound that is found in most homes can convert to formaldehyde, a carcinogen.

Haven Website: https://haveniaq.com/

Haven for sale at TruTech Tools: https://www.trutechtools.com/haven

Haven 22 is the DISCOUNT CODE for this product: https://www.trutechtools.com/haven-central-air-monitor.html which is for Pros to use to get a product to install for customers or in their own homes.

Kevin's LinkedIn: https://www.linkedin.com/in/kevinrhart/

Kevin's email: kevin@haveniaq.com

Here's a link to Grace and Corbett Lunsford's HOMECHEM videos we mentioned:

http://bit.ly/HOMEchem

This episode was recorded in March 2023.

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