Advanced Water Heating Specification

Advancing the market for heat pump water heaters

Utilities, energy efficiency organizations and market partners developed the Advanced Water Heating Specification 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 posted below is the AWHS 8.0 and is a draft that includes a new specification section for Commercial Heat Pump Water heaters. Additionally, NEEA is starting to have conversations about adding Industrial Heat Pump Specification in the next version (9.0) of the AWHS.

The document has been slightly reorganized, however, the Residential (Section 1 of the new specification) is unchanged. Version 8.0 of the AWHS is planned to go live 1/1/2022. Please reach out to Geoff Wickes at NEEA to provide suggestions and insights if you have any concerns (503.688.5456).

Residential Water Heaters: Version 7.0

Electric Advanced Water Heating Specification

Version 7.0 of the Advanced Water Heating Specification (AWHS) is the current specification and seeks to provide guidance to manufacturers and market actors who are interested in developing products that not only meet ENERGY STAR criteria but are able to provide high levels of consumer satisfaction and energy performance in a range of climates.

View Version 7.0
Residential Water Heaters

Gas-Fueled Advanced Water Heating Specification

This specification provides guidance to manufacturers and market actors who are interested in developing products that can provide high levels of consumer satisfaction and energy performance in a range of climates.

View Document
Electric Advanced Water Heating Specification

DRAFT Version 8.0

Version 8.0 of the Advanced Water Heating Specification (AWHS) is a draft that includes a new specification section for Commercial Heat Pump Water heaters. Additionally, NEEA is starting to have conversations about adding Industrial Heat Pump Specification in the next version (9.0) of the AWHS.

The document has been slightly reorganized, however, the Residential (Section 1 of the new specification) is unchanged. Version 8.0 of the AWHS is planned to go live 1/1/2022.

View Document

Visit HotWaterSolutionsNW

Hot Water Solutions is an initiative of the Northwest Energy Efficiency Alliance (NEEA) working to accelerate the adoption of heat pump water heaters in the Northwest by providing resources, tools and support to increase sales and installations of heat pump water heaters.

View the Hot Water Solutions website