Episodes

June 2, 2023

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

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...
May 26, 2023

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

Zac Reid, 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...
May 12, 2023

EP116 Another of Bill's monologues (May 2023)

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.
May 5, 2023

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

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...
April 21, 2023

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

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...
April 7, 2023

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

In this episode, Bill interviews Michael Rubino founder of 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...
March 30, 2023

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

In this episode, Bill interviews Adam Mufich, AKA A-Team Adam. You may know Adam from his video podcast, , which is a big collaboration he does with his friends Chris Stephens ( on YouTube), Bill Russell ( on YouTube) and OT Joe (HVACR on YouTube) In...
March 24, 2023

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

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...
March 17, 2023

EP 110 Bill's rambling again, uh oh (March 2023)

In this episode, Bill explains some of the activities that are keeping him bust lately The National HVACR Education Conference   The National Home Performance Conference   The National Comfort Institute (NCI) HVAC Summit   Goldman...
March 3, 2023

EP109 A new product concept for contractors interested in residential electrification with John Hoehn of Duckling (February 2023)

What’s it like to build a tech product from the ground up?   How do you validate that a market exists?   What tools can you use to gain confidence that you are on the right track?     In this week’s podcast, Bill Spohn is...
Feb. 17, 2023

EP108 Eric Kaiser and Bill Spohn share a recap of the 2023 AHR Expo (February 2023)

What do we do with our time? What did I do with my time in the last week? The Bangles said it best: … Time, time, time  See what's become of me  While I looked around for my possibilities   In this episode, Bill is joined by Eric...
Feb. 10, 2023

EP 107 Bill Spohn explains what is keeping him busy lately (Feb 2023)

In this episode, Bill explains some of the activities that have kept him busy in the first few weeks of 2023. The HVACR Symposium:   The AHR Expo:   Installing a new operating system at TruTech Tools: EOS:     This episode was...
Jan. 13, 2023

EP 106 Building Science collides with Health Science, the dawn of a new era with Joe Allen (Jan 2023)

Today, I feel very in tune with this podcast’s stated mission:   Building HVAC Science covers a broad array of topics in building science and HVAC diagnostics, as well as human comfort, health, and safety….; this show will take a deep dive...
Dec. 30, 2022

EP105 What's a pretty good house with Dan Kolbert and Chris Briley (Dec 2022)

For several years, in southern Maine, a small group of building professionals have been getting together monthly to discuss building science.     Many topics are brought up for discussion: high performance windows, venting cathedral...
Dec. 23, 2022

EP104 Live in a Home that Pays You Back with Anna DeSimone (Dec 2022)

Today’s guest, Anna Desimone has done an awesome job compiling resources for consumers to learn about factors, features and benefits of building an Energy Efficient home.   Anna is author of Live in a Home that Pays You Back--A Complete Guide...
Dec. 16, 2022

EP103 Myth busting with Jason, Clifton and Eugene from ESCO (Dec 2022)

My three esteemed guests/amigos shed some light on common misconceptions in the HVACR industry.   We talk about fun topics like: Heatpumps are only for the south of the Mason-Dixon line A1 refrigerants are Non-Flammable A2L refrigerants are...
Dec. 9, 2022

EP102 The Smart Buildings Academy with Phil Zito (Dec 2022)

Listen in as Phil Zito describes the journey he has taken from being bored, to blogging to building a business that provides top notch online training and workforce development programs.    Formerly known as Building Automation Monthly, a...
Dec. 2, 2022

EP101 Creating the world's largest virtual power plant with Shawn McLaughlin of Emporia (November 2022)

I was thrilled to get the opportunity to interview Shawn McLaughlin, after having been impressed with the simplicity and value of using an Emporia Vue Energy Monitor for a year or so before I met him.    Shawn shares with us his back story...
Nov. 25, 2022

EP100 Electrification in Alaska and other chill topics with Griffin Hagle-Forster (October 2022)

I met Griffin at the conference several years ago and found him to be thoughtful, insightful and a quiet but powerful champion of the principles he believes in.   In todays’ podcast we discuss electrification in Alaska, the deep retrofit work...
Nov. 18, 2022

EP99 How to retrofit all homes to Net Zero Energy with Adam Stenftenagel of Radiant Labs (Oct 2022)

Adam is a man full of energy and drive and is always eager to help.   Listen in as Adam describes the arc of his career that started in political activism and currently involves him in software, home decarbonization and net zero retrofits.  ...
Nov. 4, 2022

EP98 Inverters for all with Katie Woodling of Bosch (Oct 2022)

Katelyn Woodling joins us on today’s podcast to discuss the background and development of Bosch IDS Heat Pumps (Inverter Ducted Split).   Katie is the manager of Product management for Bosch Heating and Cooling, North America and works out of...
Oct. 21, 2022

EP97 Pattern recognition and the Hero vs. Guide conundrum with Nate Adams (Oct 2022)

If you are in HVAC, Home Performance, IAQ or follow “electrification” and you HAVEN’T heard of Nate Adams, you will do yourself good to listen to this podcast or follow some of the links below.   Oh, and we did not get into the awesome...
Oct. 7, 2022

EP96 A Day in the Life of a Smart Building with Vineet Sinha, JCI (Oct 2022)

“A day in the life of a smart building. Now spaces have memory and identity.”     Now more than ever, facility owners and managers are incorporating smarter and more connected building technologies to improve...
Sept. 30, 2022

EP95 Did the COVID pandemic teach us anything new about IAQ With Bill Bahnfleth (Sept 2022)

“Making building IAQ better is a long-term process.”   “We had all the answers before the COVID-19 pandemic, we just didn’t implement them.”   Bill Bahnfleth has a long and distinguished career as a professor of architectural...