In this episode, we sit down with Kevin Stickney to dive into the rapidly evolving world of sustainable heating and cooling in Europe. Kevin shares his insights on the growing adoption of geothermal heat pumps across the continent — what's driving it, the challenges, and what the U.S. market can learn from their success. We also explore the rise of R-290 (propane) monoblock heat pumps for residential applications, breaking down why this low-GWP refrigerant is gaining traction and what it means for the future of home energy efficiency. Whether you're an HVACR professional, policymaker, or simply curious about where heating technology is headed, this conversation is packed with practical knowledge and forward-thinking ideas you won’t want to miss.