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 Final Version 4.0 Residential Water Heaters Specification and Test Method to Validate Demand Response, Version 1.1 – March 29, 2022

ENERGY STAR Version 4.0 Water Heaters Final Specification Cover Memo (PDF, 152 KB)

ENERGY STAR Connected Residential Water Heaters Test Method to Validate Demand Response V1.1 (PDF, 419 KB)

ENERGY STAR Version 4.0 Water Heaters Final Specification and Partner Commitments-March2022 (PDF, 585 KB)

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, 898.07 KB) ENERGY STAR Version 4.0 Water Heaters Final Specification Cover Memo (PDF, 230.06 KB) ENERGY STAR Connected Residential Water Heaters Test Method to Validate Demand Response (PDF, 653.34 KB) ENERGY STAR Version 4.0 Water Heaters Comment Matrix Final Draft (PDF, 178.07 KB) ENERGY STAR Version 4.0 Water Heaters Final Data Package (XLSX, 404.9 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, 572.81 KB) Xcel Comments (PDF, 177.99 KB) BlocPower Comments (PDF, 97.75 KB) CA IOUs Comments (PDF, 179.99 KB) CEE Comments (PDF, 1.77 MB) Clark Public Utilities Comments (PDF, 531.21 KB) Eco2 Systems LLC Comments (PDF, 172.45 KB) NEEA Comments (PDF, 175.79 KB) NRDC Comments (PDF, 167.3 KB) Seattle City Light Comments (PDF, 119.33 KB) SkyCentrics Comments (PDF, 220.3 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, 397.65 KB) ENERGY STAR Final Draft Version 4.0 Water Heaters Cover Memo (PDF, 54.13 KB) ENERGY STAR Draft 1 Version 4.0 Water Heaters Comment Matrix (PDF, 133.66 KB) ENERGY STAR Final Draft Connected Residential Water Heaters Test Method to Validate Demand Response (PDF, 368.59 KB) ENERGY STAR Water Heaters Version 4.0 Final Draft Data Package (XLSX, 473.58 KB)

Stakeholder Comments to the Version 4.0 Draft 1 Water Heater Specification & Draft 2 Test Method to Validate Demand Response- December 9, 2020

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, 910.72 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, 100.33 KB) ENERGY STAR Draft 1 Version 4.0 Water Heaters Specification (PDF, 564.26 KB) Draft 2 ENERGY STAR Connected Residential Water Heaters Test Method to Validate Demand Response (PDF, 258.61 KB) ENERGY STAR Draft 2 Version 3.3 Water Heaters Comment Response Matrix (PDF, 53.8 KB) Draft 1 Version 4.0 ENERGY STAR Water Heaters Data Package (XLSX, 395.97 KB)