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 Connected Residential Water Heaters Test Method to Validate Demand Response (PDF, 669 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 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
AHRI Attachment - AHRI Operations Manual for Residential Water Heater Certification Program (PDF, 2.1 MB)
Draft 1 Version 4.0 Specification & Draft 2 Test Method Webinar- November 20, 2020
Please click here to view the webinar recording.
Draft 1 Version 4.0 Water Heater Specification & Draft 2 Test Method to Validate Demand Response- October 28, 2020
Draft 2 ENERGY STAR Connected Residential Water Heaters Test Method to Validate Demand Response.pdf (PDF, 265 KB)
Draft 1 Version 4.0 ENERGY STAR Water Heaters Data Package.xlsx (OFFICEDOCUMENT, 405 KB)