Residential Water Heaters Specification Version 2.0

Residential Water Heaters Specification Version 2.0

The ENERGY STAR Version 2.0 specification for Water Heaters has been finalized. Materials related to this revision process are provided below. Partners and other interested parties with questions or concerns regarding these materials or the revision process can contact Abigail Daken, EPA, at or

Final Version 2.0 ENERGY STAR Specification for Residential Water Heaters

The Version 2.0 ENERGY STAR specification for Residential Water Heaters has been finalized and will take effect July 1, 2013. Manufacturers may elect to have their Certification Body (CB) certify their eligible products to the Version 2.0 requirements from now on. The program requirements, including the specification, and additional information are available through the links below.

Draft 3 Full Comment Matrix
ENERGY STAR Residential Water Heaters Final Draft Version 2.0
Draft 3 Hybrid Comment Matrix
ENERGY STAR Water Heaters V2.0 Draft 3 Updated Proposal
ENERGY STAR Draft 3 Version 2.0 Stakeholder Comments
Draft 3 Webinar Slides
ENERGY STAR Water Heaters Draft 3 Version 2.0
ENERGY STAR Draft 2 Version 2.0 Stakeholder Comments
Draft 1 Comment Matrix
Draft 2 Partner Meeting Webinar Slides
Draft 2 Version 2.0 Water Heater Specification
ENERGY STAR Draft 1 Version 2.0 Stakeholder Comments
ENERGY STAR Draft 1 Version 2.0 Webinar Slides
Water Heaters Framework Document Webinar Comment Responses
Framework Document Webinar

EPA hosted a webinar to discuss topics that will be addressed during the specification revision and to solicit comments on the discussion topics outlined in the Framework Document.

Announcement and Specification Framework

The U.S. Environmental Protection Agency (EPA) is pleased to announce the revision of the ENERGY STAR Residential Water Heater product specification. EPA welcomes written comment on the issues presented in the framework document through Friday, June 24th, 2011. Please send all comments and supporting information to with the subject line: "ENERGY STAR Water Heaters Specification Framework." Comment letters received will be posted to this page except for those marked "Do Not Post."
EPA will also hold an online stakeholder meeting on Wednesday, June 22, 2011 at 2 PM. Please RSVP to by Tuesday, June 21, 2011, to receive call-in information.


More information about ENERGY STAR past efforts with water heaters.