The Federal Energy Management Program (FEMP) organized information about FEMP-designated and ENERGY STAR-qualified heating, ventilating, and air conditioning (HVAC) and water heating products into tables that mirror American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) 90.1-2013 minimum efficiency requirement tables. Federal buyers can use these tables as a reference and to incorporate the proper purchasing requirements set by FEMP and ENERGY STAR into federal acquisition documents.

Minimum efficiency and performance requirements tables for the following covered product categories are included in the sections below.

Air-Source Heat Pumps and Geothermal Heat Pumps

The table below includes minimum efficiency requirements for the following ENERGY STAR-qualified covered product categories: air-source heat pumps (residential) and geothermal heat pumps (residential).

These ASHRAE 90.1-2016 Table 6.8.1-1 and Table 6.8.1-2 equipment types are excluded: through-the-wall, air cooled; small-duct high velocity, air cooled; air conditioners, water cooled; air conditioners, evaporatively cooled; condensing units, air cooled; condensing units, water cooled; and condensing units, evaporatively cooled.

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 15.0 SEER; 12.5 EER; 8.5 HSPF (single phasea)
Single package 15.0 SEER; 12.0 EER; 8.2 HSPF (single phasea)
≥65,000 Btu/h and <135,000 Btu/h Electric resistance (or none) Split system and single package 11.8 EER; 12.8 IEER; 3.4 COP at 47ºF
≥135,000 Btu/h and <240,000 Btu/h Electric resistance (or none) Split system and single package 10.9 EER; 12.0 IEER; 3.3 COP at 47ºF
≥240,000 Btu/hb 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 EER; 3.1 COP (single phase)
Geothermal, open loop water-to-water       20.1 EER; 3.5 COP (single phase)
Geothermal, DGX       16.0 EER; 3.6 COP (single phase)
Three phase heat pumps in the <65,000 Btu/h category are not covered by ENERGY STAR 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.
b 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 Table 6.8.1-2.

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Table Terms

COP - coefficient of performance
DGX - direct geoexchange
EER - energy efficiency ratio
HSPF - heating seasonal performance factor
IEER - integrated energy efficiency ratio
SEER - seasonal energy efficiency ratio

Boilers

The table below includes minimum efficiency requirements for the following FEMP-designated and ENERGY STAR-qualified covered product categories: boilers (commercial) and boilers (residential).

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 95%
>2,500,000 Btu/h and ≤10,000,000 Btu/h Et 95%
>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 81%
>2,500,000 Btu/h and ≤10,000,000 Btu/h Et 83%
>10,000,000 Btu/hb Et 79%
Gas-fired, natural draft ≥300,000 Btu/h and ≤2,500,000 Btu/h Et 81%
>2,500,000 Btu/h and ≤10,000,000 Btu/h Et 83%
>10,000,000 Btu/hb Et 79%
Oil-fired <300,000 Btu/h AFUE 87%
≥300,000 Btu/h and ≤2,500,000 Btu/h Et 84%
>2,500,000 Btu/h and ≤10,000,000 Btu/h Et 85.5%
>10,000,000 Btu/hb Et 81%
a Thermal efficiency (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

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Table Terms

AFUE - annual fuel utilization efficiency
Ec - cooling efficiency
Et - thermal efficiency

Central Air Conditioners and Light Commercial Heating and Cooling Equipment

The table below includes minimum efficiency requirements for the following ENERGY STAR-qualified covered product categories:  central air conditioners (residential) and light commercial heating and cooling equipment.

These ASHRAE 90.1-2016 Table 6.8.1-1 and Table 6.8.1-2 equipment types are excluded: through-the-wall, air cooled; small-duct high velocity, air cooled; air conditioners, water cooled; air conditioners, evaporatively cooled; condensing units, air cooled; condensing units, water cooled; and condensing units, evaporatively cooled.

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 15.0 SEER and 12.5 EER (single phasea)
Single package 15.0 SEER and 12.0 EER (single phasea)
≥65,000 Btu/h and <135,000 Btu/h Electric resistance (or none) Split system and single package 12.2 EER and 14.0 IEER
All other Split system and single package 12.0 EER and 13.8 IEER
≥135,000 Btu/h and <240,000 Btu/h Electric resistance (or none) Split system and single package 12.2 EER and 13.2 IEER
All other Split system and single package 12.0 EER and 13.0 IEER
≥240,000 Btu/h and <760,000 Btu/hb Electric resistance (or none) Split system and single package 10.0 EER and 11.6 IEER
All other Split system and single package 9.8 EER and 11.4 IEER
≥760,000 Btu/hb Electric resistance (or none) Split system and single package 9.7 EER and 11.2 IEER
All other Split system and single package 9.5 EER and 11.0 IEER

a Three phase air conditioners in the <65,000 Btu/h category are not covered by ENERGY STAR

b 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 Table 6.8.1-1.

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Table Terms

COP - coefficient of performance
DGX - direct geoexchange
EER - energy efficiency ratio
HSPF - heating seasonal performance factor
IEER - integrated energy efficiency ratio
SEER - seasonal energy efficiency ratio

Electric Chillers, Air-Cooled and Water-Cooled

The table below includes minimum efficiency requirements for the following FEMP-designated covered product categories: electric chillers, air-cooled; and electric chillers, water-cooled.

These ASHRAE 90.1-2016 Table 6.8.1-3 equipment types are excluded: air-cooled absorption, single effect; water-cooled absorption, single effect; absorption double effect, indirect fired; and absorption double effect, direct fired chillers.

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) ≥10.70 FL ≥9.70 FL
≥13.7 IPLV ≥15.9 IPLV
Air-cooled ≥150 t EER (Btu/W) ≥10.73 FL ≥9.70 FL
≥14.00 IPLV ≥16.37 IPLV
Water-cooled, electrically operated positive displacement <75 t kW/t ≤0.728 FL ≤0.78 FL
≤0.60 IPLV ≤0.50 IPLV
Water-cooled, electrically operated positive displacement ≥75 t and <150 t kW/t ≤0.714 FL ≤0.75 FL
≤0.56 IPLV ≤0.49 IPLV
Water-cooled, electrically operated positive displacement ≥150 t and <300 t kW/t ≤0.629 FL ≤0.68 FL
≤0.54 IPLV ≤0.44 IPLV
Water-cooled, electrically operated positive displacement ≥300 t and <600 t kW/t ≤0.61 FL ≤0.625 FL
≤0.52 IPLV ≤0.41 IPLV
Water-cooled, electrically operated positive displacement ≥600 t kW/t ≤0.56 FL ≤0.585 FL
≤0.50 IPLV ≤0.38 IPLV
Water-cooled, electrically operated centrifugal <150 t kW/t ≤0.61 FL ≤0.695 FL
≤0.55 IPLV ≤0.44 IPLV
Water-cooled, electrically operated centrifugal ≥150 t and <300 t kW/t ≤0.544 FL ≤0.635 FL
≤0.55 IPLV ≤0.40 IPLV
Water-cooled, electrically operated centrifugal ≥300 t and <400 t kW/t ≤0.544 FL ≤0.595 FL
≤0.52 IPLV ≤0.39 IPLV
Water-cooled, electrically operated centrifugal ≥400 t and <600 t kW/t ≤0.541 FL ≤0.585 FL
≤0.50 IPLV ≤0.38 IPLV
Water-cooled, electrically operated centrifugal ≥600 t kW/t ≤0.55 FL ≤0.585 FL
≤0.50 IPLV ≤0.38 IPLV

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Table Terms

EER - energy efficiency ratio
FL - full load
IPLV - integrated part load value

Electric Storage Water Heaters, Gas Storage Water Heaters, Gas Water Heaters, and Solar Water Heaters

The table below includes performance requirements for the following FEMP-designated and ENERGY STAR-qualified covered product categories: electric storage water heaters (residential), gas storage water heaters (residential), gas water heaters (commercial), and solar water heaters (residential).

These ASHRAE 90.1-2016 Table 7.8 equipment types are excluded: oil storage water heaters; oil instantaneous water heaters; hot-water supply boilers, gas and oil; hot-water supply boilers, gas; hot-water supply boilers, oil; pool heaters, oil and gas; heat-pump pool heaters; and unfired storage tanks.

Water-Heating Equipment: Performance Requirements
Equipment Type Size Category (Input) Subcategory or Rating Condition Performance Required
Electric storage water heaters ≤24 A and ≤250 V Heat pump ≤55 gal EFa ≥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
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.

SL is the standby loss

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Table Terms

EF - energy factor
FHR - first hour rating
GPM - gallons per minute
SEF - solar energy factor
SL - standby loss
TE - thermal efficiency

Gas Furnaces

The table below includes minimum efficiency requirements for the following ENERGY STAR-qualified covered product category: gas furnaces (residential).

These ASHRAE 90.1-2016 Table 6.8.1-5 equipment types are excluded: warm-air duct furnaces, gas fired; warm-air unit heaters, gas fired; and warm-air unit heaters, oil fired.

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 Table 6.8.1-5.

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Table Terms

AFUE - annual fuel utilization efficiency
Et - thermal efficiency

Room Air Conditioners

The table below includes minimum efficiency requirements for the following ENERGY STAR-qualified covered product category: room air conditioners (residential).

These ASHRAE 90.1-2016 Table 6.8.1-4 equipment types are excluded: packaged terminal air conditioners, packaged terminal heat pumps, single-package vertical air conditioners, and single-package vertical heat pumps.

Electrically Operated Room Air Conditioners: Minimum Efficiency Requirements
Equipment TypeSize Category (Input)Subcategory or Rating ConditionMinimum Efficiency
Room air conditioners with louvered sides<6,000 Btu/h-12.1 CEER
≥6,000 Btu/h and <8,000 Btu/h-12.1 CEER
≥8,000 Btu/h and <14,000 Btu/h-12.0 CEER
≥14,000 Btu/h and <20,000 Btu/h-11.8 CEER
≥20,000 Btu/h and <28,000 Btu/h-10.3 CEER
≥28,000 Btu/h-9.9 CEER
Room air conditioners without louvered sides≤8,000 Btu/h-11.0 CEER
≥8,000 Btu/h and <11,000 Btu/h-10.6 CEER
≥11,000 Btu/h and <14,000 Btu/h-10.5 CEER
≥14,000,000 Btu/h and <20,000 Btu/h-10.2 CEER
≥20,000,000 Btu/h-10.3 CEER
Room air-conditioner heat pumps with louvered sides<20,000 Btu/h-10.8 CEER
≥20,000 Btu/h-10.2 CEER
Room air-conditioner heat pumps without louvered sides<14,000 Btu/h-10.2 CEER
≥14,000 Btu/h-9.6 CEER
Room air conditioner, casement onlyAll capacities-10.5 CEER
Room air conditioner, casement sliderAll capacities-11.4 CEER

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Table Terms

CEER - combined energy efficiency ratio
EER - energy efficiency ratio