Energy Conservation Program: Test Procedures for Consumer Warm Air Furnaces; Final Denial of Petition for Rulemaking

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This document announces and provides the reasoning for the U.S. Department of Energy's final denial of a petition filed by the Air-Conditioning, Heating, and Refrigeration Institute requesting that DOE initiate a notice-and-comment rulemaking to develop a new combined test procedure for consumer furnaces and furnace fans, which would replace the two currently required performance metrics for furnaces and the one performance metric for furnace fans with a single new metric called "AFUE2."