Residential Water Heaters Specification Version 5.0

Version 5.0 ENERGY STAR specification for Water Heaters is currently under development. 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 Daken.Abigail@epa.gov or Waterheaters@energystar.gov.

ENERGY STAR Version 5.0 Residential Water Heater Final Specification - July 18, 2022

ENERGY STAR Version 5.0 Residential Water Heater Final Draft Specification Stakeholder Comments - July 5, 2022

AGA Comments (PDF, 324 KB)
AHRI Comments (PDF, 162 KB)
APGA Comments (PDF, 163 KB)
ASAP Comments (PDF, 146 KB)
CA IOUs Comments (PDF, 176 KB)
CEE Comments (PDF, 846 KB)
NAGHPC Comments (PDF, 593 KB)
NEEA Comments (PDF, 178 KB)
NPGA Comments (PDF, 228 KB)
NYSERDA Comments (PDF, 147 KB)
Rheem Comments (PDF, 201 KB)

ENERGY STAR Version 5.0 Residential Water Heater Final Draft Specification – June 1, 2022

ENERGY STAR Version 5.0 Residential Water Heaters Final Draft Specification Cover Memo (PDF, 173 KB)
ENERGY STAR Version 5.0 Residential Water Heaters Final Draft Specification (PDF, 489 KB)
ENERGY STAR Version 5.0 Residential Water Heaters Final Draft Data Package (EXCEL, 557 KB)
Version 5.0 Residential Water Heater Comment Response Matrix (PDF, 131 KB)
ENERGY STAR Connected Residential Water Heaters Test Method to Validate Demand Response V1.2 (PDF, 354 KB)


ENERGY STAR Version 5.0 Residential Water Heater Draft 1 Specification Stakeholder Comments – November 11, 2021

A. O. Smith Comments (PDF, 247 KB)
AHRI Comments (PDF, 161 KB)
American Gas Association Comments (PDF, 203 KB)
American Public Gas Association Comments (PDF, 168 KB)
ASAP, ACEEE, CEO, GECA, IPL, NYSERDA, SEEP, WSDOC Comments (PDF, 289 KB)
Atmos Energy Comments (PDF, 111 KB)
AWHI Comments (PDF, 214 KB)
Bradford White Comments (PDF, 158 KB)
Building Industry Professionals Comments (PDF, 2.4 MB)
California Energy Commission Comments (PDF, 219 KB)
CEE Comments (PDF, 1.0 MB)
Fortis BC Comments (PDF, 934 KB)
GE Appliances Comments (PDF, 95 KB)
Giant Factories Comments (PDF, 138 KB)
Heidi Cody Comments (PDF, 496 KB)
National Propane Gas Association Comments (PDF, 187 KB)
NEEA Comments (PDF, 132 KB)
North American Gas Heat Pump Collaborative Comments (PDF, 155 KB)
NRDC Citizen Letter Comments (PDF, 604 KB)
NRDC, RMI, and other organizations Comments (PDF, 224 KB)
ONE Gas Comments (PDF, 184 KB)
Redwood Energy Comments (PDF, 764 KB)
Robert Whitehair Comments (PDF, 500 KB)
Southern California Edison Comments (PDF, 118 KB)
Tim Hreha Comments (PDF, 629 KB)


ENERGY STAR Version 5.0 Residential Water Heater Draft 1 Specification Webinar - October 13, 2021

ENERGY STAR Version 5.0 Residential Water Heaters Draft 1 Webinar (PDF, 1.2 MB)


ENERGY STAR Version 5.0 Residential Water Heater Draft 1 Specification - October 5, 2021

ENERGY STAR Version 5.0 Residential Water Heaters Draft 1 Specification Memo (PDF, 263 KB)
ENERGY STAR Version 5.0 Residential Water Heaters Draft 1 Specification (PDF, 507 KB)
ENERGY STAR Version 5.0 Residential Water Heaters Draft 1 Data Package (EXCEL, 512 KB)

Applicable Specifications: 

Heating & Cooling: Water Heater, Whole Home Gas Tankless (PDF, 83 KB)