Gas backup SEF ≥1.2 a Energy factor (EF) is an efficiency ratio of the energy supplied in heater water divided by the energy input to the water heater. Gas Furnaces Warm-Air Furnaces: Minimum Efficiency Requirements Size Category Subcategory or Equipment Type Minimum Efficiency (Input) Rating Condition (U.S. ≥95.0% North/Canada) <225,000 Btu/h Maximum capacity Warm-air furnace, gas fired (U.S. South) ≥90.0% Btu/ha Maximum capacity 80% Et ≥225,000 <225,000 Btu/h Maximum capacity AFUE ≥85% Warm-air furnace, oil fired Btu/ha Maximum capacity 81% Et ≥225,000 a Furnaces with input equal to or greater than 225,000 Btu/h are not covered by federal purchasing requirements. Minimum efficiency presented is consistent with ASRHAE 90.1-2013. Room Air Conditioners Electrically Operated Room Air Conditioners: Minimum Efficiency Requirements Size Category Subcategory or Equipment Type Minimum Efficiency (Input) Rating Condition 11.2 EER and 11.0 <6,000 Btu/h - CEER Btu/h and 11.2 EER and 11.0 ≥6,000 - <8,000 Btu/h CEER Room air conditioners with Btu/h and 11.3 EER and 11.2 ≥8,000 - louvered <14,000 Btu/h CEER Btu/h and 11.2 EER and 11.1 ≥14,000 - <20,000 Btu/h CEER 9.8 EER and 9.8 Btu/h - ≥20,000 CEER 10.4 EER and 10.2 Btu/h - ≤8,000 CEER Btu/h and 9.8 EER and 9.7 ≥8,000 - <20,000 Btu/h CEER Room air conditioners without louvered sides Btu/h and 9.8 EER and 9.7 ≥20,000 - <28,000 Btu/h CEER 9.8 EER and 9.8 Btu/h - ≥28,000,000 CEER
Gas backup SEF ≥1.2 a Energy factor (EF) is an efficiency ratio of the energy supplied in heater water divided by the energy input to the water heater. Gas Furnaces Warm-Air Furnaces: Minimum Efficiency Requirements Equipment Type Size Category (Input) Subcategory or Rating Condition Minimum Efficiency Warm-air furnace, gas fired <225,000 Btu/h Maximum capacity ≥95.0% (U.S. North/Canada) ≥90.0% (U.S. South) ≥225,000 Btu/ha Maximum capacity 80% Et Warm-air furnace, oil fired <225,000 Btu/h Maximum capacity ≥85% AFUE ≥225,000 Btu/ha Maximum capacity 81% Et a Furnaces with input equal to or greater than 225,000 Btu/h are not covered by federal purchasing requirements. Minimum efficiency presented is consistent with ASRHAE 90.1-2013. Room Air Conditioners Electrically Operated Room Air Conditioners: Minimum Efficiency Requirements Equipment Type Size Category (Input) Subcategory or Rating Condition Minimum Efficiency Room air conditioners with louvered <6,000 Btu/h - 11.2 EER and 11.0 CEER ≥6,000 Btu/h and <8,000 Btu/h - 11.2 EER and 11.0 CEER ≥8,000 Btu/h and <14,000 Btu/h - 11.3 EER and 11.2 CEER ≥14,000 Btu/h and <20,000 Btu/h - 11.2 EER and 11.1 CEER ≥20,000 Btu/h - 9.8 EER and 9.8 CEER Room air conditioners without louvered sides ≤8,000 Btu/h - 10.4 EER and 10.2 CEER ≥8,000 Btu/h and <20,000 Btu/h - 9.8 EER and 9.7 CEER ≥20,000 Btu/h and <28,000 Btu/h - 9.8 EER and 9.7 CEER ≥28,000,000 Btu/h - 9.8 EER and 9.8 CEER