Season 4 is here! Hosts Charlie Jelen and Dan Gentry are back in the studio, fresh off the floor at AHR 2026 in Las Vegas, where the Cool Air, Hot Takes™ booth was open for business, t-shirts were flying, and the industry had lots to say.

This week, Charlie and Dan break down their hot takeaways from the expo — from the CDU arms race taking over every corner of the exhibit hall, to a surprising surge in electrification energy that nobody quite saw coming.

Live from the AHR Expo floor, we hear from:

1. Allison Clements, Design Engineers: A hot take on the gap between elegant design and real-world operability and why your maintenance guy needs to be in the room.
2. Ray Reiling, Trade Water: Why end-of-life refrigerant is everybody's problem and almost nobody's responsibility, and what you can do about it.
3. David & Conrad Bishop, Twin Bishop Strategies: How the service industry is about to get hit hard by the scale of data center growth and why working smarter isn't optional anymore.
4. Spencer Ingaldson, Darcy Solutions: Groundwater-enabled geothermal that delivers 50x the capacity of a traditional well. Yes, really.

We want your hot takes and questions! Email coolair.hottakes@trane.com, drop a comment on YouTube or Spotify, or leave us a review on Apple Podcasts. Don't forget to rate and follow, too!

Cool Air, Hot Takes™ is a Trane Commercial podcast exploring bold innovations, emerging trends, and game-changing tech in HVAC, energy, and the built environment. Learn more at trane.com/coolairhottakes.

Follow for new episodes every two weeks and stream on Spotify, Apple Podcasts, YouTube, or wherever you get your podcasts.

Hot takes, cool systems, and zero fluff — Season 4 of Cool Air, Hot Takes ™ from Trane is here. Join Charlie and Dan as they bring in the sharpest minds in the industry to break down what's actually happening in heating, cooling, and building technology. AI, refrigerants, heat pumps, data centers, and whatever else is keeping engineers up at night.

Cool Air, Hot Takes ™ is brought to you by Trane Commercial, part of Trane Technologies, a leading provider of innovative climate control solutions and energy services for commercial environments.

Follow now wherever you get your podcasts for sharp insights, bold opinions, and a good time guaranteed.

Today, we’re wrapping season 3 with a deep dive into industrial high-temperature heat pumps. Hosts Charlie Jelen and Dan Gentry talk with Mobola Dosumu, National Sales Manager for Heat Pumps at Everllence, whose custom-engineered systems deliver multi-megawatt heating and up to 350°C steam for heavy industry and district energy. Mobola explains why these heat pumps aren’t “what’s next”, they’re already here, and how they’re accelerating industrial decarbonization.

We also have:

• HVAC Headlines: Should you really cover your AC unit in winter? Plus, how AI could boost HVAC productivity by 40%, and why predictive maintenance might finally get its moment.
• Dan in the Factory: This week Dan meets Billy Rice, Mechanical Commissioning Agent, to talk about what happens inside a fan-wall test, and a pretty wild air-pressure job story.
• Stat of the Day: The funniest (and strangest) statistics about Americans - from coupon dates to conspiracy theories.

We want your hot takes and questions! Email coolair.hottakes@trane.com, drop a comment on YouTube or Spotify, or leave us a review on Apple Podcasts. Don’t forget to rate and follow too!

Cool Air, Hot TakesTM is a Trane Commercial podcast exploring bold innovations, emerging trends, and game-changing tech in HVAC, energy, and the built environment.

Follow for new episodes every two weeks and stream on Spotify, Apple Podcasts, YouTube, or wherever you get your podcasts.