Episode 847

847: The Startup Disrupting HVAC Like Tesla Disrupted Cars | Stephen Lake of Jetson

Published on: 22nd August, 2025

Heat pumps are the EVs of HVAC—so why aren’t we all using them?

Stephen Lake, a highly successful engineer turned climate-tech entrepreneur, is here to explain why heating and cooling is the most overlooked piece of the decarbonization puzzle.

After selling his last company to Google, Stephen founded Jetson to tackle one of the biggest—and slowest-moving—sectors of home energy: HVAC. From cold-weather performance to noise, he busts the myths about heat pumps and outlines why they haven’t hit mass adoption in North America.

Spoiler: it’s not the tech. It’s everything else—price, friction, contractors, complexity.

Expect a crash course in sector disruption, including Jetson’s decision to build everything in-house and cut install costs by half through full-stack operations. If Tesla built HVAC, it’d look like this.

🔹 What makes heat pumps 300% efficient (and why it’s not magic)

🔹 The hidden friction points that stall heat pump adoption

🔹 Why cold-climate performance is no longer a dealbreaker

🔹 Lessons from scaling a vertically integrated climate tech startup

If you’ve ever wondered why heat pumps haven’t gone mainstream—or whether it should be part of your electrification journey—this is a conversation you can’t miss.

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About the Podcast

SunCast
Your resource for developing a clean energy or climate tech career
Nico Johnson takes you into conversations with those at the forefront of Renewable Energy.

SunCast gives an inside look into what is happening in renewable energy. From conversations with the biggest Solar Panel manufacturers in the world to the small startups creating the future of renewable energy, such as carbon capture and battery technology breakthroughs.

SunCast is dedicated to providing the knowledge, research, tools and expert guidance you need to understand, grow and be ahead of the curve in the fastest-growing markets in the world.

Featuring over 800 conversations, Nico has interviewed people from Tesla, SolarCity, Trina Solar, Meyer Burger, Conergy, SunEdison, Energy Vault and even the US Government... to name a few. Covering topics such as Solar Power, Wind Energy, Batteries, Electric Vehicles, Carbon Capture, Finance, Hydrogen, and more.

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...or view the full archive of SunCast episodes here: https://www.suncast.media/media/podcast