Advanced Water Heating Specification

Find the electric and natural gas advanced water heating specifications and accompanying qualified products lists below.

Advancing the market for heat pump water heaters

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.

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Electric Advanced Water Heating Specification

Version 8.0

This document succeeds NEEA’s previous Advanced Water Heating Specification (AWHS Version 7.0). This version has been expanded to include commercial, multifamily, and industrial water heating systems in addition to residential water heaters. Notably, this version has no substantive changes to the residential water (Unitary and split system) heater portion of the specification compared to Version 7.0. The AWHS Version 7.0 will stay up for six months so organizations can migrate over to the new specification.

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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.

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Additional Resources

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