Heat Pump Water Heaters and the Energy Code

We'll walk through the basics of heat pump water heaters (HPWH) for homes and provide critical compliance information for the California Energy Code 2019 Residential Standards. We'll cover why we are seeing HPWHs in the code now, how they are different from other types of water heaters, highlight the benefits and some potential constraints, and review how designers, builders, installers, and code officials would document a HPWH for Energy Code compliance, with specific focus on single family homes or where one HPWH serves one dwelling.