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Code · CFR · Title 10 — Energy · Part 431 — Energy Efficiency Program for Certain Commercial and Industrial Equipment · § 431.76

§ 431.76. Uniform test method for the measurement of energy efficiency of commercial warm air furnaces.

84 words·~1 min read·/us/cfr/t10/s§ 431.76·

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(a)Scope. This section prescribes the test requirements used to measure the energy efficiency of commercial warm air furnaces with a rated maximum input of 225,000 Btu per hour or more.
(b)Testing and calculations—(1) Thermal efficiency. Test in accordance with appendix A to subpart D of this part when making representations of thermal efficiency.
(2)Thermal efficiency two. Test in accordance with appendix B to subpart D of this part when making representations of thermal efficiency two. [88 FR 36234, June 2, 2023]
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