Residential Water Heaters Specification Version 4.0

Version 4.0 ENERGY STAR specification for Water Heaters is currently under development. Materials related to this revision process are provided below. This process will encompass and supersede the ongoing Version 3.3 specification development process to add optional connected criteria. Materials related to the Version 3.3 revision can be referenced here. 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 4.0 Water Heaters Final Specification and Test Method to Validate Demand Response – Monday, April 5, 2021
ENERGY STAR Version 4.0 Water Heaters Final Specification and Partner Commitments (PDF, 920 KB)
ENERGY STAR Version 4.0 Water Heaters Final Specification Cover Memo (PDF, 236 KB)
ENERGY STAR Connected Residential Water Heaters Test Method to Validate Demand Response (PDF, 669 KB)
ENERGY STAR Version 4.0 Water Heaters Comment Matrix Final Draft (PDF, 182 KB)
ENERGY STAR Version 4.0 Water Heaters Final Data Package (OFFICEDOCUMENT, 415 KB)
Thursday, March 4, 2021
Stakeholder comments to the Version 4.0 Final Draft Water Heater Specification & Final Draft Test Method to Validate Demand Response
A.O. Smith Comments (PDF, 587 KB)
Xcel Comments (PDF, 182 KB)
BlocPower Comments (PDF, 100 KB)
CEE Comments (PDF, 1.9 MB)
Clark Public Utilities Comments (PDF, 544 KB)
Eco2 Systems LLC Comments (PDF, 177 KB)
NEEA Comments (PDF, 180 KB)
NRDC Comments (PDF, 171 KB)
Seattle City Light Comments (PDF, 122 KB)
SkyCentrics Comments (PDF, 226 KB)
ENERGY STAR Water Heaters Final Draft Version 4.0 Specification and Test Method to Validate Demand Response- Thursday, February 4, 2021
ENERGY STAR Final Draft Version 4.0 Water Heaters Specification.pdf (PDF, 407 KB)
ENERGY STAR Final Draft Version 4.0 Water Heaters Cover Memo.pdf (PDF, 55 KB)
ENERGY STAR Draft 1 Version 4.0 Water Heaters Comment Matrix.pdf (PDF, 137 KB)
ENERGY STAR Final Draft Connected Residential Water Heaters Test Method to Validate Demand Response.pdf (PDF, 377 KB)
ENERGY STAR Water Heaters Version 4.0 Final Draft Data Package.xlsx (OFFICEDOCUMENT, 485 KB)
Stakeholder Comments to the Version 4.0 Draft 1 Water Heater Specification & Draft 2 Test Method to Validate Demand Response- December 9, 2020
AGA Comments ENERGY STAR Water Heater Version 4.0 Draft 1 Specification (PDF, 190 KB)
AHRI Attachment - AHRI Operations Manual for Residential Water Heater Certification Program (PDF, 2.1 MB)
AHRI Comments ENERGY STAR Water Heater Version 4.0 Draft 1 Specification (PDF, 113 KB)
A.O. Smith Comments ENERGY STAR Water Heater Version 4.0 Draft 1 Specification (PDF, 611 KB)
ASAP ACEEE Comments ENERGY STAR Water Heater Version 4.0 Draft 1 Specification (PDF, 146 KB)
Bradford White Comments ENERGY STAR Water Heater Version 4.0 Draft 1 Specification (PDF, 158 KB)
CA IOUs Comments ENERGY STAR Water Heater Version 4.0 Draft 1 Specification (PDF, 440 KB)
Eco2 Systems Comments ENERGY STAR Water Heater Version 4.0 Draft 1 Specification (PDF, 115 KB)
GE Appliances Comments ENERGY STAR Water Heater Version 4.0 Draft 1 Specification (PDF, 103 KB)
Giant Factories Comments ENERGY STAR Water Heater Version 4.0 Draft 1 Specification (PDF, 225 KB)
NAGHP Collaborative Comments ENERGY STAR Water Heater Version 4.0 Draft 1 Specification (PDF, 147 KB)
NEEA Comments ENERGY STAR Water Heater Version 4.0 Draft 1 Specification (PDF, 324 KB)
Rheem Comments ENERGY STAR Water Heater Version 4.0 Draft 1 Specification (PDF, 159 KB)
SkyCentrics Comments ENERGY STAR Water Heater Version 4.0 Draft 1 Specification (PDF, 173 KB)
Draft 1 Version 4.0 Specification & Draft 2 Test Method Webinar- November 20, 2020

 Please click here to view the webinar recording.

Water Heaters Draft 1 Version 4.0 and Draft 2 Test Method Webinar Slides (PDF, 933 KB)
Draft 1 Version 4.0 Water Heater Specification & Draft 2 Test Method to Validate Demand Response- October 28, 2020
ENERGY STAR Draft 1 Version 4.0 Water Heaters Cover Memo.pdf (PDF, 103 KB)
ENERGY STAR Draft 1 Version 4.0 Water Heaters Specification.pdf (PDF, 578 KB)
Draft 2 ENERGY STAR Connected Residential Water Heaters Test Method to Validate Demand Response.pdf (PDF, 265 KB)
ENERGY STAR Draft 2 Version 3.3 Water Heaters Comment Response Matrix.pdf (PDF, 55 KB)
Draft 1 Version 4.0 ENERGY STAR Water Heaters Data Package.xlsx (OFFICEDOCUMENT, 405 KB)

Please refer to the Version 3.3 Specification Revision Page for earlier documents related to the Connected Criteria development.