Harvest

About

Harvest Thermal is a cleantech company founded in 2019 that focuses on decarbonizing residential heating and hot water systems. The company has been recognized by TIME as one of America’s Top GreenTech Companies in 2025 and by Fast Company as one of the Most Innovative Companies in 2023. With over $11 million in funding and grants from the National Science Foundation and California Energy Commission, Harvest Thermal is committed to reducing carbon emissions from buildings. The company's flagship product is a Smart Thermal Battery System, which combines a heat pump with a water-based thermal battery. This system provides space heating, hot water, and cooling while significantly cutting carbon emissions—up to 90% compared to gas systems. Key components include the Harvest Pod®, a cloud-connected control unit that optimizes energy use, and a water-fired furnace that replaces traditional gas furnaces. Harvest Thermal aims to help homeowners seeking sustainable HVAC solutions, promoting a scalable approach to decarbonizing homes.