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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:

EP80 What is PACE with Scott Ringlein (March 2020) Jun 17, 2022

Show notes

We're joined on today's podcast by Scott Ringlein, a Clean Energy & Sustainability Specialist & Consultant.

Scott was raised as a farmer and educated as an engineer with a first career path in the auto industry.

He ventured out on his own creating a second career in sustainability with a focus on energy efficiency, conservation, and renewable energy measures.

Listen in as Scott shares his journey and achievements which include work for the U.S. Department of Energy and the founding of The Energy Alliance Group of North America in 2012.

Scott helps us to understand PACE: Property Assessed Clean Energy. There are a lot of great resources on his website where EAG has a "four cores" approach to green and renewable solutions: Technology, Financing, Incentives and Services.

Learn more about the EAG here: energyalliancegroup.org

And contact Scott via: sringlein@energyalliancegroup.org

Follow Scott on LinkedIn:

https://www.linkedin.com/in/sringlein/

This episode was recorded in March 2020.

EP79 Two Peas in a Podcast? HVAC Know It All & Building HVAC Science Swap Stories with Gary MacCreadie & Bill Spohn (May 2022) Jun 10, 2022

Show notes

If you're in the HVAC field and you listen to podcasts, it's likely you've heard of Gary MacCreadie.

If not, here's your chance to get an inside perspective on how and why Gary got into the HVAC Field and later started a podcast audaciously named HVAC Know-It-All.

Throughout the episode, we flip flop as interviewer and guest.

Gary has recently started his own business, as he, like many others including me, do not like taking direction from others.

Follow all content of the HVAC Know It All here: https://www.hvacknowitall.com/

Gary is one of the growing list of TruFriends, talented people in the trade that we list on this page on our website: https://www.trutechtools.com/friends-of-trutech-tools.html

Follow Gary and Bill on LinkedIn:

https://www.linkedin.com/in/gary-mccreadie-38217a77/

https://www.linkedin.com/in/billspohn/

This episode was recorded in May 2022.

EP78 Propane HVAC systems with Bryan Cordill of PERC (June 2020) Jun 03, 2022

Show notes

On today's podcast we are joined by Bryan Cordill, the Director of Residential and Commercial Business Development at the Propane Education and Research Council.

Bryan has decades of experience in the world of propane and in the energy industry in general.

We cover topics ranging from propane as a source of space & water heating, cooking, mobile energy including school buses, to combined heat and power systems. We also touch on propane as a refrigerant (R-290).

You might be surprised at the size of some of the systems we discuss.

You can learn more about the mission and work of the Propane Education Research Council by going to: www.propane.com/

Follow Bryan LinkedIn: https://www.linkedin.com/in/bryan-cordill-438557a/

This episode was recorded in June 2020.

EP77 Energy Demand as Resource with Matt Golden of Recurve (Oct. 2019) May 27, 2022

Show notes

Matt Golden is Founder and CEO of Recurve a company that connects the dots between efficiency, electrification, renewable energy, and DERS (distributed energy resources).

Recurve's mission is to accelerate the transition to a clean energy economy by integrating behind the meter demand flexibility resources into the emerging carbon-free energy grid.

Distributed Energy Resources (DERs) can be described as small-scale electricity generation and storage devices that are generally connect to the grid. These sources can be Solar, Wind, and battery storage, and others.

Matt's focus is on energy and the climate while looking for the customer benefit.

He's got an impressive career path, including the founding of Sustainable Spaces (AKA Recurve at the time) in 2004, which over 7 years grew to be the largest home performance contractor on the West coast.

You can find Matt and follow his work on his website: www.recurve.com

And on LinkedIn: www.linkedin.com/in/goldenmatt/

Matt's most recent TEDx talk was in Sonoma in March 2022 discussing VPPs Virtual Power Plants: https://www.youtube.com/watch?v=knDsACZaaQc

This episode was recorded in October 2019, but check the links above for more up to date info as things change quickly in this field.

EP76 How to market invisible performance with Max Rohr (Feb. 2020) May 20, 2022

Show notes

Max Rohr (formerly with Rehau as the Marketing and Academy Manager for Building Solutions) spends some time explaining for us the process of creating and marketing products to move energy in water, that is radiant heating and cooling systems, as well as plumbing applications with Pex.

We learn about both Max's background and the background of the Rehau company which has 20,000 employees in 55 countries and operates in 5 distinct market areas globally.

This episode was recorded in February 2020.

EP75 What it's like working at Kalos with Austin Klokus (Nov. 2019) May 13, 2022

Show notes

I was impressed with Austin Klokus when I first met him on a trip to Kalos Services (The Orr Family HVAC/Mechanical business in Clermont FL) a few years ago.

He was working as a senior videographer at the time where he had soaked up knowledge from Bryan Orr and others and taught himself the skills necessary to do fulfill this role.

I loved it when he used the phrase "air is stuff" in one of his videos to convey the message that air has mass.

I saw him again in person recently at the 3rd Annual HVAC School Symposium and he continues to mature and grow as a person.

I appreciate his "young wisdom" and I hope that you do, too.

This episode was recorded in November 2019.

EP74 Where you can go with passion and persistence with Craig Migliaccio (April 2022) May 06, 2022

Show notes

I can easily summarize this episode with a single quote from Craig's LinkedIn bio:

"Remember that we are all teachers and need to invest in others to succeed."

You may have heard of Craig; as his HVAC Training books and YouTube videos continue to grow in popularity. Find him on the AC Service Tech Channel on YouTube.

He's always been a problem solver including solving the problem of teaching himself how to write some of the most thoughtfully developed HVAC training materials out there.

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

https://www.linkedin.com/in/craig-migliaccio-71085a74/

info@acservicetech.com

You can find his books on Amazon or via his website:

https://www.amazon.com/shop/acservicetech/list/2JFZVBR572471

https://www.acservicetech.com/

This episode was recorded in April 2022.

EP73 Creating superb customer service with Steve Coscia (Sep 2021) Apr 22, 2022

Show notes

I'm so pleased to welcome my friend Steve Coscia to the podcast!

You may have heard of him; he focuses on training customer service skills especially in the world of HVAC.

As a master communications trainer, he gets his points across via memorable story telling.

He holds awesome in-person training sessions (he has been to TruTech Tools twice!) and has books, newsletters, materials, and videos, all of which can be found though this website and YouTube channel: Links below

https://www.coscia.com/

https://www.youtube.com/user/stevecoscia/videos

His 3 key principles of customer problem handling are contain, qualify and correct.

A lot of what he teaches may be considered life skills. You need to get a dose of Steve if you can.

You will also find Steve presenting at conferences and in the media/videos via other organizations like ACCA and The New Flat Rate.

This episode was recorded in September 2021.

EP72 Energy Efficiency, decarbonization and sustainability with John Sheff from Danfoss (Aug. 2021) Apr 15, 2022

Show notes

In today's podcast we hear from John Sheff who was the director of Public and Industry Affairs for Danfoss at the time of this recording.

We learn how John's passion about energy efficiency, decarbonization and sustainability combines with his professional experience in Public Affairs, Government Relations, Project Management and Business Development to help develop strong solutions that meet our industry's needs.

We hear about the barriers to deep energy retrofits, limitations of the push for electrification as well as how people are thinking beyond the individual building to tackle building emissions.

We also talk about the need for variable speed technology HVAC systems that can ramp up or down to accommodate commercial space that is operating at varying degrees of capacity. And we touch on need to maintain constant, variable airflow as opposed to on/off air flow in indoors spaces with respect to what we have learned in response to COVID-19.

You can learn more about Danfoss products at this link: https://www.danfoss.com/en-us/

And read more on Danfoss' position on ESG at this link:

https://www.danfoss.com/en-us/about-danfoss/company/sustainability/esg-ranks-and-ratings/

This episode was recorded in August 2021.

EP71 Helping contractors, technically and through marketing services- a conversation with Tom Jackson (Sept. 2019) Apr 08, 2022

Show notes

Tom Jackson has a passion for the HVAC Trades and it shows through in what he does as leader of Jackson Systems and Supply.

Tom is a true entrepreneur following where his customers lead him.

His company focuses on product development and support and solves some real head scratcher problems with products and services that you won't find elsewhere.

Services like Filter Fetch – making it easy on contractors for their customers to do the right thing.

You'll hear about his vision and perspectives and the awesome online training system they have developed.

You can learn more about his company here: https://jacksonsystems.com/

We are proud to carry his iO Controls line of products at TruTech Tools:

https://www.trutechtools.com/iO-HVAC-Controls

This episode was recorded in Sept 2019.

Tom Jackson

Tom Jackson is the chief executive officer of Jackson Systems, LLC. A Purdue University graduate, Tom is a degreed engineer and spent several years as a territory manager with a large heating and cooling wholesaler in Indiana. During that time, Tom learned a great deal about controls, equipment and incredible client service. In 1997, Tom partnered with his parents to start Jackson Systems. While he is involved with most aspects of the business, he focuses on long-term strategies, product development and making Jackson Systems an incredible place to work. Tom, Ron and Bette have grown Jackson Systems from a start-up to a $20M + company with 81 employees. Jackson Systems has won "Best Places to Work" seven times for the State of Indiana.

Tom was a founding Board Member of the Zoning Marketing Alliance (ZMA), which merged with the Air Conditioning, Heating and Refrigeration Institute (AHRI), the premiere governing body of the HVAC industry. Additionally, Tom is on the Board of Directors for the Indiana HVAC Association and serves on two national committees for the Air Conditioning Contractors of America (ACCA). Tom also received the National Distinguished Service Award from ACCA.

Tom lives in Indianapolis with his wife Jane and their two children. He is active in the Boy Scouts of America. He earned the rank of Eagle Scout and has the distinct honor of being awarded the Silver Beaver, Scouting's top honor. But his great Scouting accomplishment was seeing his son earn is Eagle Scout award. Tom is also involved with Kiwanis, the Catholic Church, the Wishing Well Fund and Alpha Phi Omega service organization. Tom is committed to improving the lives of others and dedicated to his employees and community.

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