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

ENERGY STAR Version 5.0 Residential Water Heaters Final Draft Specification Cover Memo (PDF, 173.23 KB) ENERGY STAR Version 5.0 Residential Water Heaters Final Draft Specification (PDF, 488.84 KB) ENERGY STAR Version 5.0 Residential Water Heaters Final Draft Data Package (XLSX, 556.6 KB) Version 5.0 Residential Water Heater Comment Response Matrix (PDF, 131.12 KB) ENERGY STAR Connected Residential Water Heaters Test Method to Validate Demand Response V1.2 (PDF, 353.92 KB)

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

A. O. Smith Comments (PDF, 247.18 KB) AHRI Comments (PDF, 161.16 KB) American Gas Association Comments (PDF, 202.92 KB) American Public Gas Association Comments (PDF, 168.14 KB) ASAP, ACEEE, CEO, GECA, IPL, NYSERDA, SEEP, WSDOC Comments (PDF, 289.3 KB) Atmos Energy Comments (PDF, 111.33 KB) AWHI Comments (PDF, 213.9 KB) Bradford White Comments (PDF, 157.6 KB) Building Industry Professionals Comments (PDF, 2.39 MB) California Energy Commission Comments (PDF, 218.96 KB) CEE Comments (PDF, 1.04 MB) Fortis BC Comments (PDF, 934.2 KB) GE Appliances Comments (PDF, 94.88 KB) Giant Factories Comments (PDF, 138.48 KB) Heidi Cody Comments (PDF, 495.92 KB) National Propane Gas Association Comments (PDF, 186.61 KB) NEEA Comments (PDF, 131.95 KB) North American Gas Heat Pump Collaborative Comments (PDF, 154.59 KB) NRDC Citizen Letter Comments (PDF, 604.29 KB) NRDC, RMI, and other organizations Comments (PDF, 223.64 KB) ONE Gas Comments (PDF, 183.73 KB) Redwood Energy Comments (PDF, 763.86 KB) Robert Whitehair Comments (PDF, 500.28 KB) Southern California Edison Comments (PDF, 117.7 KB) Tim Hreha Comments (PDF, 628.88 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, 1.17 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, 262.54 KB) ENERGY STAR Version 5.0 Residential Water Heaters Draft 1 Specification (PDF, 507.17 KB) ENERGY STAR Version 5.0 Residential Water Heaters Draft 1 Data Package (XLSX, 511.97 KB)

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Applicable Specifications: 

Heating & Cooling: Water Heater, Whole Home Gas Tankless (PDF, 83.42 KB)