Residential Water Heaters Specification Version 3.0

The Version 3.2 ENERGY STAR specification for Water Heaters has been finalized. The Version 3.3 ENERGY STAR specification for Water Heaters has been subsumed in the Version 4.0 revision process. Materials related to ersion 3.3 and historical materials for Versions 3.0, 3.1, and 3.2 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 Daken.Abigail@epa.gov or Waterheaters@energystar.gov.

Stakeholder Comments to the Draft 2 Version 3.3 Water Heater Specification - January 6, 2020 & Draft 1 Test Method to Validate Demand Response

CA IOUs Comments (PDF, 199 KB)
PGE Comments (PDF, 1010 KB)


ENERGY STAR Water Heaters Draft 2 Version 3.3 & Test Method Webinar - December 9, 2019


Draft 2 Version 3.3 Water Heater Specification & Draft 1 Test Method to Validate Demand Response - November 26, 2019


ESPPM ENERGY STAR DOE Discussion on Water Heaters Connected Criteria and Test Procedure - September 10, 2019


ENERGY STAR Water Heaters Demand Response Test Procedure Check-In - August 15, 20191


DOE Test Procedure Kickoff Meeting - June 6, 2019


Stakeholder Comments on the Water Heaters Draft 1 Version 3.3 Specification - May 28, 2019

CA IOUs Comments (PDF, 202 KB)
CEE Comments (PDF, 1021 KB)
NEEA Comments (PDF, 335 KB)
NEEP Comments (PDF, 61 KB)
NRDC Comments (PDF, 204 KB)
NRECA Comments (PDF, 306 KB)
NWEC Comments (PDF, 326 KB)
PGE Comments (PDF, 164 KB)
TVA Comments (PDF, 131 KB)


Draft 1 Version 3.3 Water Heaters Webinar- May 2, 2019


Draft 1 Version 3.3 Water Heaters Specification - April 16, 2019


ENERGY STAR Connected Water Heaters Stakeholder Meeting - March 20, 2018


Final Version 3.2 Water Heaters Specification- September 22, 2017


Draft Version 3.2 Solar Photovoltaic Memo - August 23, 2017


Draft Version 3.2 Water Heaters Specification - July 25, 2017


Version 3.1 Water Heaters Certification Body Webinar - May 23, 2017


Final Version 3.1 Water Heaters Specification - May 23, 2017


For Certification Body Review: Water Heater V3 Updated QPX Requirements - May 12, 2017


Stakeholder Comments on the Water Heaters Draft 1 Version 3.1 Specification - April 24, 2017

AHRI Comments (PDF, 152 KB)
A.O. Smith Comments (PDF, 111 KB)
EEI Comments (PDF, 246 KB)
NEEA Comments (PDF, 112 KB)


Draft 1 Version 3.1 Water Heaters Stakeholder Webinar - April 6, 2017


Draft 1 Version 3.1 Water Heaters Specification - March 27, 2017

EPA welcomes all partner and stakeholder feedback on the Draft 1 Version 3.1 Residential Water Heaters Specification.
Note: The comment period for Draft 1 Version 3.1 is closed as of April 24, 2017.


Final Version 3.0 Water Heaters Specification & Final Draft Comment Response Matrix - July 18, 2014

ENERGY STAR Water Heaters Version 3.0 Cover Memo (PDF, 111 KB)

ENERGY STAR Water Heaters Version 3.0 Program Requirements (PDF, 291 KB)

Water Heaters Version 3.0 Final Draft Comment Matrix (PDF, 176 KB)

Stakeholder Comments on the Water Heaters Final Draft Version 3.0 - July 18, 2014

AHRI Comments (PDF, 225 KB)

AO Smith Comments (PDF, 386 KB)

ASAP ACEEE NRDC NEEP Comments (PDF, 264 KB)

BWC Comments (PDF, 49 KB)

EEI Comments (PDF, 223 KB)

Rheem Comments (PDF, 187 KB)

Rinnai Comments (PDF, 49 KB)

Final Draft Version 3.0 Water Heaters Specification - June 19, 2014

ENERGY STAR Water Heaters Version 3.0 Final Draft Cover Memo (PDF, 110 KB)

ENERGY STAR Water Heaters Version 3.0 Final Draft (PDF, 255 KB)

Stakeholder Comments on the Water Heaters Draft 1 Version 3.0 - April 30, 2014

Draft 1 Version 3.0 Comment Matrix (PDF, 199 KB)

AHRI Comments (PDF, 115 KB)

AO Smith Comments (PDF, 333 KB)

APGA Comments (PDF, 2.2 MB)

ASAP ACEEE NRDC Comments (PDF, 269 KB)

Bradford White Comments (PDF, 55 KB)

EEI Comments (PDF, 220 KB)

NEEA Comments (PDF, 755 KB)

NEEP Comments (PDF, 144 KB)

NRECA Comments (PDF, 1.7 MB)

NYLE Comments (PDF, 202 KB)

Rheem Comments (PDF, 276 KB)

Rinnai Comments (PDF, 61 KB)

Draft 1 Version 3.0 Water Heaters Specification Slides - April 16, 2014

ENERGY STAR Water Heaters Version 3.0 Draft 1 Webinar Slides (PDF, 873 KB)

Draft 1 Version 3.0 Water Heaters Specification - April 2, 2014

ENERGY STAR Water Heaters Draft 1 V3.0 Cover Memo (PDF, 122 KB)

ENERGY STAR Water Heaters Draft 1 V3.0 (PDF, 430 KB)

ENERGY STAR Water Heaters Version 3.0 Launch Letter - February 24, 2014

ENERGY STAR Water Heaters Version 3.0 Launch Letter (PDF, 94 KB)