Furnace Specification Versions 3 and 4

The Version 4.1 ENERGY STAR Furnaces Specification has been finalized and products may be certified to it immediately. Materials related to this revision process are provided below. Partners and other interested parties with questions or concerns regarding these materials can contact Abigail Daken, EPA, at Daken.Abigail@epa.gov.

Final Version 4.1 Specification for Furnaces - April 21, 2017

Version 4.1 Furnace Cover Memo (PDF, 94 KB)

Version 4.1 Furnace Specification (PDF, 179 KB)

Stakeholder Comments on Draft Version 4.1 - April 7, 2017

Comment Summary and Response - Draft Version 4.1 ENERGY STAR Furnaces (PDF, 13 KB)

AHRI Comments (PDF, 105 KB)

Carrier Comments (PDF, 216 KB)

CEE Comments (PDF, 87 KB)

Draft Version 4.1 Specification for Furnaces - March 24, 2017

Draft Version 4.1 Furnace Cover Memo (PDF, 95 KB)

Draft Version 4.1 Furnace Specification (PDF, 169 KB)

Comments received on call for data - December 21, 2014

Furnaces FER Comment Matrix (PDF, 155 KB)

Furnace Fans Data Assembly Memo (PDF, 107 KB)

AHRI Comments (PDF, 138 KB)

Goodman Commnts (PDF, 287 KB)

Rheem Comments (PDF, 162 KB)

Final Version 3.0 and Version 4.0 Specification for Furnaces - June 13, 2011

Final Version 3.0 and Version 4.0 Furnace Cover Memo (PDF, 175 KB)

Final Version 3.0 Furnace Specification (PDF, 73 KB)

Final Version 4.0 Furnace Specification (PDF, 74 KB)

Final Version 3.0 and 4.0 Furnace Comment Responses (PDF, 187 KB)

Interim Approach for Determining Furnace Fan Energy Use Rev. June-2011 (PDF, 60 KB)

Stakeholder Comments on Draft Final, Version 3.0 and 4.0

AGA Comments (PDF, 96 KB)

AHRI Comments (PDF, 186 KB)

Carrier Comments (PDF, 773 KB)

CEE Comments (PDF, 76 KB)

Ingersoll Rand Comments (PDF, 724 KB)

Draft Final Version 3.0 and Version 4.0 Specification for Furnaces - April 18, 2011

EPA welcomes all partner and stakeholder feedback on the Draft Final Version 3.0 and Version 4.0 Furnace Specification. Please send all comments via e-mail to furnaces@energystar.gov. Note: the comment deadline has been extended to May 9, 2011.

Draft Final Version 3.0 and Version 4.0 Furnace Cover Memo (PDF, 38 KB)

Draft Final Version 3.0 and Version 4.0 Furnace Specification (PDF, 96 KB)

Draft ENERGY STAR Calculation Methodology for Calculating the Furnace Fan Efficiency (e) (PDF, 233 KB)