Sector
Residential
End-use
Water Heating/DHW/HPWH
Project Number
CR22PGE1901
2022 - 2023
PG&E
PDF Available
COMPLETE
The current California Building Standards Code, Title 24, does not include minimum ventilation requirements for residential heat pump water heaters (HPWH). Building owners across California are installing HPWHs in small closets without adequate ventilation, leading to high...