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MINIMUM EFFICIENCY REQUIREMENTS TABLES FOR HEATING AND COOLING PRODUCT CATEGORIES The Federal Energy Management Program (FEMP) created tables that mirror American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) 90.1-2013 tables, which include minimum efficiency requirements for FEMP-designated and ENERGY STAR-qualified heating and cooling product categories.
Air-Source Heat Pumps (Residential), Central Air Conditioners (Residential), Geothermal Heat Pumps (Residential), and Light Commercial Heating and Cooling Equipment Electrically Operated Unitary Heat Pumps: Minimum Efficiency Requirements
| Equipment Type |
| Size Category |
| Heating Section Type |
| Subcategory or Rating Condition |
| Minimum Efficiency |
| Air-cooled (cooling mode) |
| <65,000 Btu/h |
| All |
| Split system |
| 14 SEER; 11 EER; 8.2 HSPF (three phase) |
14.5 SEER; 12 EER; 8.2 HSPF (single phase)
| Single package |
| 14 SEER; 11 EER; 8.0 HSPF (three phase) |
14 SEER; 11 EER; 8.0 HSPF (single phase)
| ≥65,000 Btu/h and <135,000 Btu/h |
| Electric resistance (or none) |
| Split system and single package |
| 11.3 EER; 11.4 IEER; 3.35 COP |
| ≥135,000 Btu/h and <240,000 Btu/h |
| Electric resistance (or none) |
| Split system and single package |
| 10.9 EER; 11 IEER; 3.25 COP |
| ≥240,000 Btu/ha |
| Electric resistance (or none) |
| Split system and single package |
| 9.5 EER; 10.6 IEER |
Geothermal, closed loop water-to-air
17.1 EER; 3.6 COP (single phase)
Geothermal, open loop water-to-air
21.1 EER; 4.1 COP (single phase)
Geothermal, closed loop water-to-water
16.1; 3.1 COP (single phase)
Geothermal, open loop water-to-water
20.1; 3.5 COP (single phase)
Geothermal, DGX
16.0 EER; 3.6 COP (single phase)
a Heat pumps with size equal to or greater than 240,000 Btu/h are not covered by federal purchasing requirements. Minimum efficiency presented is consistent with ASRHAE 90.1-2013.
Central Air Conditioners and Light Commercial Heating and Cooling Equipment Electrically Operated Unitary Air Conditioners: Minimum Efficiency Requirements
| Equipment Type |
| Size Category |
| Heating Section Type |
| Subcategory or Rating Condition |
| Minimum Efficiency |
| Air conditioners, air-cooled |
| <65,000 Btu/h |
| All |
| Split system |
| 14.5 SEER and 12 EER (single phase) |
14 SEER and 12 EER (three phase)
| Single package |
| 14 SEER and 11 EER (single phase) |
14 SEER and 11 EER (three phase)
| ≥65,000 Btu/h and <135,000 Btu/h |
| Electric resistance (or none) |
| Split system and single package |
| 11.7 EER and 11.8 IEER |
| All other |
| Split system and single package |
| 11.5 EER and 11.6 IEER |
| ≥135,000 Btu/h and <240,000 Btu/h |
| Electric resistance (or none) |
| Split system and single package |
| 11.7 EER and 11.8 IEER |
| All other |
| Split system and single package |
| 11.5 and 11.6 IEER |
| ≥240,000 Btu/h and <760,000 Btu/ha |
| Electric resistance (or none) |
| Split system and single package |
| 12.4 EER and 13.6 IEER |
| All other |
| Split system and single package |
| 12.2 EER and 13.4 IEER |
| ≥760,000 Btu/ha |
| Electric resistance (or none) |
| Split system and single package |
| 12.2 EER and 13.5 IEER |
| All other |
| Split system and single package |
| 12.0 EER and 13.3 IEER |
a Air conditioners with size equal to or greater than 240,000 Btu/h are not covered by federal purchasing requirements. Minimum efficiency presented is consistent with ASRHAE 90.1-2013.
Boilers (Residential) and Boilers (Commercial) Gas- and Oil-Fired Boilers: Minimum Efficiency Requirements
| Equipment Type |
| Subcategory or Rating Condition |
| Size Category (Input) |
| Efficiency Metric |
| Minimum Efficiency |
| Boilers, hot water |
| Gas-fired |
| <300,000 Btu/h |
| AFUE |
| 90% |
| ≥300,000 Btu/h and ≤2,500,000 Btu/h |
| Eta |
| 94% |
| >2,500,000 Btu/h and ≤10,000,000 Btu/h |
| Et |
| 94% |
| >10,000,000 Btu/hb |
| Ec |
| 82% |
| Oil-fired |
| <300,000 Btu/h |
| AFUE |
| 87% |
| ≥300,000 Btu/h and <2,500,000 Btu/h |
| Et |
| 85.5% |
| >2,500,000 Btu/h and ≤10,000,000 Btu/h |
| Et |
| 85.5% |
| >10,000,000 Btu/hb |
| Ec |
| 84% |
| Boilers, steam |
| Gas-fired |
| <300,000 Btu/h |
| AFUE |
| 90% |
| Gas-fired (all, except natural draft) |
| ≥300,000 Btu/h and ≤2,500,000 Btu/h |
| Et |
| 80% |
| >2,500,000 Btu/h and ≤10,000,000 Btu/h |
| Et |
| 80% |
| >10,000,000 Btu/hb |
| Et |
| 79% |
| Gas-fired, natural draft |
| ≥300,000 Btu/h and ≤2,500,000 Btu/h |
| Et |
| 80% |
| >2,500,000 Btu/h and ≤10,000,000 Btu/h |
| Et |
| 80% |
| >10,000,000 Btu/hb |
| Et |
| 77% |
| Oil-fired |
| <300,000 Btu/h |
| AFUE |
| 87% |
| ≥300,000 Btu/h and ≤2,500,000 Btu/h |
| Et |
| 83.5% |
| >2,500,000 Btu/h and ≤10,000,000 Btu/h |
| Et |
| 83.5% |
| >10,000,000 Btu/hb |
| Et |
| 81% |
a Thermal efficieny (Et) is based on Hydronics Institute, Method to Determine Efficiency of Commercial Space Heating Boilers (HI BTS-2000, Rev. 06.07).
b Boilers with input greater than 10,000,000 Btu/h are not covered by federal purchasing requirements. Minimum efficiency presented is consistent with ASRHAE 90.1-2013 Table 6.8.1-6.
Electric Chillers, Air-Cooled and Water-Cooled Water-Chilling Packages: Minimum Efficiency Requirements
| Equipment Type |
| Size Category |
| Units |
| Minimum Efficiency |
| Path A (Full-Load Optimized Applications) |
| Path B (Part-Load Optimized Applications) |
| Air-cooled |
| <150 t |
| EER (Btu/W) |
| ≥10.40 FL |
| ≥9.56 FL |
| Air-cooled |
| ≥150 t |
| EER (Btu/W) |
| ≥10.40 FL |
| ≥9.56 FL |
| Water-cooled, electrically operated positive displacement |
| < 75 t |
| kW/t |
| ≤0.75 FL |
| ≤0.80 FL |
| Water-cooled, electrically operated positive displacement |
| ≥75 t and <150 t |
| kW/t |
| ≤0.71 FL |
| ≤0.79 FL |
| Water-cooled, electrically operated positive displacement |
| ≥150 t and <300 t |
| kW/t |
| ≤0.68 FL |
| ≤0.72 FL |
| Water-cooled, electrically operated positive displacement |
| ≥ 300 t and <600 t |
| kW/t |
| ≤0.58 FL |
| ≤0.64 FL |
| Water-cooled, electrically operated positive displacement |
| ≥600 t |
| kW/t |
| ≤0.58 FL |
| ≤0.64 FL |
| Water-cooled, electrically operated centrifugal |
| < 150 t |
| kW/t |
| ≤0.62 FL |
| ≤0.64 FL |
| Water-cooled, electrically operated centrifugal |
| ≥150 t and <300 t |
| kW/t |
| ≤0.59 FL |
| ≤0.64 FL |
| Water-cooled, electrically operated centrifugal |
| ≥300 t and <400 t |
| kW/t |
| ≤0.56 FL |
| ≤0.60 FL |
| Water-cooled, electrically operated centrifugal |
| ≥400 t and <600 t |
| kW/t |
| ≤0.56 FL |
| ≤0.60 FL |
| Water-cooled, electrically operated centrifugal |
| ≥ 600 t |
| kW/t |
| ≤0.55 FL |
| ≤0.57 FL |
Electric Resistance Water Heaters, Gas Storage Water Heaters, Gas Water Heaters, Heat Pump Water Heaters, and Solar Water Heaters Water-Heating Equipment: Performance Requirements
| Equipment Type |
| Size Category (Input) |
| Subcategory or Rating Condition |
| Performance Required |
| Electric water heaters |
| ≤12 kW |
| Resistance ≤55 gal |
| 0.93 EFa or greater and 4,721 kWh or less annual energy useb |
| ≤12 kW |
| Resistance >55 gal |
| 0.92 EF or greater and 4,773 kWh or less annual energy use |
| ≤24 A and ≤250 V |
| Heat pump ≤55 gal |
| EF ≥2.0 and FHR ≥50 gal/h |
| Heat pump >55 gal and ≤120 gal |
| EF ≥2.2 and FHR ≥50 gal/h |
| Gas storage water heaters |
| ≤75,000 Btu/h |
| ≥20 gal and ≤55 gal |
| EF ≥0.67 and FHR ≥67 gal/h |
| >55 gal and ≤100 gal |
| EF ≥0.77 and FHR ≥67 gal/h |
| >75,000 Btu/h |
| >100 gal and ≤140 gal |
| TE ≥0.94 or EF ≥0.93 and SL ≤0.84 * [(input rate/800) + 100√volume)] Btu/h |
| Gas instantaneous water heaters |
| ≥50,000 Btu/h and <200,000 Btu/h |
| <4,000 (Btu/h)/gal |
| EF ≥0.90 and GPM ≥2.5 over a 77-deg rise |
| ≥200,000 Btu/h |
| ≥4,000 (Btu/h)/gal |
| TE ≥0.94 or EF ≥0.93 |
| Solar water heaters |
| ≤75,000 Btu/h |
| Electric backup |
| SEF ≥1.8 |
a Energy factor (EF) is an efficiency ratio of the energy supplied in heater water divided by the energy input to the water heater.
b Based on U.S. Department of Energy test procedure (10 CFR 430, Subpart B, Appendix E).
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 sides |
| <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 |
| Room air-conditioner heat pumps with louvered sides |
| <20,000 Btu/h |
| - |
| 10.4 EER and 10.3 CEER |
| ≥20,000 Btu/h |
| - |
| 9.8 EER and 9.8 CEER |
| Room air-conditioner heat pumps without louvered sides |
| <14,000 Btu/h |
| - |
| 9.8 EER and 9.7 CEER |
| ≥14,000 Btu/h |
| - |
| 9.2 EER and 9.1 CEER |
| Room air conditioner, casement only |
| All capacities |
| - |
| 10.0 EER and 9.9 CEER |
| Room air conditioner, casement slider |
| All capacities |
| - |
| 10.9 EER and 10.8 CEER |