Source: CleanTechnica
There are a lot of heat pump water heaters (HPWH) that have come to market recently. At the beginning of this decade, only a handful of manufacturers were making this hyper-efficient water heating product, and now we count 13 different brands of just tanked water heaters with more brands and ... [continued] The post A Startup Enters The Heat Pump Water Heater Space Focused On A Smart Water Heater appeared first on CleanTechnica.