In this episode, I geek out with David Goldstein, founder of Hydronic Shell Technologies, about a novel building retrofit technology that wraps old multifamily structures in insulated panels with built-in HVAC systems. Goldstein's approach allows for energy-efficient upgrades without interior disruption, potentially solving a major challenge in building decarbonization. We dive into how the system combines exterior insulation, air sealing, and centralized heat pumps with individual window units to dramatically reduce energy demand and emissions.

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