Utilities, energy efficiency organizations and market partners developed the Advanced Water Heating Specification (AWHS) to advance higher performing electric and gas heat pump water heaters. While this specification is rooted in ensuring performance in cooler northern climates, its applicability and benefits extend well beyond the Northwest. The specification also enhances the end goals of NEEA's water heating programs - to influence the passage of federal standards requiring heat pump levels of performance for both gas and electric storage water heaters.
The latest version of the AWHS is version 8.0. Additional resources such as qualified products lists (QPLs) are available in the listed resources below.
Advanced Water Heating Specification
AWHS 8.0 includes a new specification section for Commercial Heat Pump Water heaters. Version 8.0 of the AWHS is live as of March 2022.
Electric Advanced Water Heating Specification v7.0
Version 7.0 of the AWHS is listed only for reference purposes. For the most up-to-date specification, please see v8.0 above.
Commercial HPWH Product Assessment Datasheet