What is the SEER2 rating of the Comfort-Aire HRG1536S1R-**A?

The Comfort-Aire HRG1536S1R-**A is rated at up to 16.8 SEER2 and 13.5 EER2 for cooling and up to 8.7 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 243 certified matchups SEER2 ranges from 15.4-16.8.

Is the Comfort-Aire HRG1536S1R-**A good for cold climates?

It is not cold-climate certified: none of its matchups meet the ENERGY STAR cold-climate criteria (a COP of at least 1.75 at 5°F among other limits). In places with frequent sub-zero nights, pick a cold-climate 3-ton model.

How much does the Comfort-Aire HRG1536S1R-**A cost to run per year?

At its rated efficiency it costs about $1,004-$2,488 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,210 in Phoenix and $2,058 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

Which indoor units work with the Comfort-Aire HRG1536S1R-**A?

ENERGY STAR lists 243 certified combinations for this outdoor unit. The highest-rated ones use 7EC48CX-0*+TDR, EAD4X-48C+TDR, 7ED48CX-0*+TDR.

What refrigerant does the Comfort-Aire HRG1536S1R-**A use?

It uses R-410A. R-410A is being phased down under the EPA AIM Act, and new systems are moving to R-454B and R-32.

3-ton central heat pump · HRG15 SERIES

Comfort-Aire HRG1536S1R-**A

Average cooling and heating efficiency for a 3-ton central heat pump, but not rated for cold climates.

Ranks #177 of 302 3 ton central heat pumps for cooling efficiency, and costs about $1,060 a year to run in a mixed climate like Atlanta.

SEER2: 16.8 Cooling efficiency over a season
Average · beats 45%
HSPF2: 8.7 Heating efficiency over a season
Average · beats 47%
EER2: 13.5 Cooling efficiency on a 95°F day
Excellent · beats 95%
Heat at 5°F: 19,100 BTU/h50% of its 47°F output
Excellent · beats 92%

A good fit if…

You want a choice of indoor units - 243 certified pairings.

Think twice if…

You often see nights below 0°F - it is not cold-climate certified.
You want the newest refrigerant - it uses R-410A, which is being phased down.
Comfort and noise matter - a single-stage compressor runs only full-on or off.

Calculate my running cost

Details

Specifications3 ton, R-410A

General
Brand	Comfort-Aire
Also sold as	Century
Outdoor unit model	HRG1536S1R-**A
Series	HRG15 SERIES
Type	Central heat pump
Nominal size	3 ton
CompressorVariable-speed units run longer at low power	Single stage
Refrigerant	R-410A
Connected (smart) capable	No
On the market since	October 1, 2022
Last certified	October 27, 2025
Cooling
SEER2Seasonal efficiency, higher is better	16.8 (range 15.4-16.8)
EER2Efficiency at 95°F outdoors	12.5-13.5
Cooling capacity	35,000-36,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	7.8-8.7
Capacity at 47°F	32,400-36,000 BTU/h
Capacity at 17°F	21,400-23,800 BTU/h
Capacity at 5°F	16,800-19,100 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.08-2.34
ENERGY STAR cold climate	No

Heating output as it gets colder50% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with 7EC48CX-0*+TDR at the standard test temperatures, in BTU/h:

Certified matchups243 indoor units

The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 243 are shown. Ask your installer for the AHRI reference number of the exact system you are quoted.

Indoor unit	Furnace	SEER2	EER2	HSPF2	Heat @5°F	AHRI ref.
7EC48CX-0*+TDR	GUH80C090C5M	16.8	13.5	7.8	16,800	214713059
7EC48CX-0*+TDR	GUH80C090C5M	16.8	13.5	7.8	16,800	214716883
EAD4X-48C+TDR	GDD80C110C5M	16.6	13.0	8.7	18,800	213265492
EAD4X-48C+TDR	GDD80C110C5M	16.6	13.0	8.7	18,800	213265442
7ED48CX-0*+TDR	GDD80C110C5M	16.6	13.0	8.7	18,800	214713038
7ED48CX-0*+TDR	GDD80C110C5M	16.6	13.0	8.7	18,800	214716862
7EH51CX-0*+TDR	GUH80C090C5M	16.6	13.5	8.0	17,400	214713016
7EH42CX-0*+TDR	GUH92C110C4M	16.6	13.5	8.0	17,900	214712998
7EH42CX-0*+TDR	GUH96C110C5M	16.6	13.5	8.0	17,800	214713001
7EH42CX-0*+TDR	GUH96C110C5M	16.6	13.5	8.0	17,800	214716825
7EH51CX-0*+TDR	GUH80C090C5M	16.6	13.5	8.0	17,400	214716840
7EH42CX-0*+TDR	GUH92C110C4M	16.6	13.5	8.0	17,900	214716822
7EC48CX-0*+TDR	GUH80C110C5M	16.6	13.5	8.0	17,000	214716884
7EC48CX-0*+TDR	GUH80C110C5M	16.6	13.5	8.0	17,000	214713060
EA(C;U)1P36B+TDR+TXV	GUH80C090B4M	16.6	13.5	7.8	16,800	210421098
EA(C;U)1P36B+TDR+TXV	GUH80C090B4M	16.6	13.5	7.8	16,800	210421177
EA(C;U)1P36A+TDR+TXV	GUH80C090B4M	16.6	13.5	7.8	16,800	210330417
EA(C;U)1P36A+TDR+TXV	GUH80C090B4M	16.6	13.5	7.8	16,800	210331325
7EC48CX-0*+TDR	GUH96C090C4M	16.6	13.5	7.8	17,000	214713065
7EC48CX-0*+TDR	GUH92C090C4M	16.6	13.5	7.8	16,800	214713062
7EC48CX-0*+TDR	GUH92C110C4M	16.6	13.5	7.8	17,000	214713063
7EC48CX-0*+TDR	GUH92C110C5M	16.6	13.5	7.8	16,800	214713064
7EC48CX-0*+TDR	GUH96C110C5M	16.6	13.5	7.8	17,000	214713066
7EC36BX-0*+TDR	GUH80C090B4M	16.6	13.5	7.8	16,800	214713050
7EC36BX-0*+TDR	GUH80C090B4M	16.6	13.5	7.8	16,800	214716874
7EC48CX-0*+TDR	GUH92C090C4M	16.6	13.5	7.8	16,800	214716886
7EC48CX-0*+TDR	GUH92C110C4M	16.6	13.5	7.8	17,000	214716887
7EC48CX-0*+TDR	GUH92C110C5M	16.6	13.5	7.8	16,800	214716888
7EC48CX-0*+TDR	GUH96C090C4M	16.6	13.5	7.8	17,000	214716889
7EC48CX-0*+TDR	GUH96C110C5M	16.6	13.5	7.8	17,000	214716890
7EH42BX-0*+TDR	GUH80C090B4M	16.4	13.0	8.1	18,300	214712987
7EH51CX-0*+TDR	GUH80C110C5M	16.4	13.0	8.1	17,400	214713017
7EH42CX-0*+TDR	GUH80C110C5M	16.4	13.5	8.1	18,000	214712995
7EH51CX-0*+TDR	GUH80C110C5M	16.4	13.0	8.1	17,400	214716841
7EH42BX-0*+TDR	GUH80C090B4M	16.4	13.0	8.1	18,300	214716811
7EH42CX-0*+TDR	GUH80C110C5M	16.4	13.5	8.1	18,000	214716819
7EH42CX-0*+TDR	GUH80C090C5M	16.4	13.5	8.0	17,900	214712994
7EH51CX-0*+TDR	GUH92C110C5M	16.4	13.0	8.0	17,300	214713021
7EH51CX-0*+TDR	GUH96C110C5M	16.4	13.0	8.0	17,500	214713023
7EH42CX-0*+TDR	GUH92C090C4M	16.4	13.5	8.0	17,900	214712997
7EH42CX-0*+TDR	GUH97M090C4M	16.4	13.5	8.0	18,000	214713003
7EH42CX-0*+TDR	GUH92C110C5M	16.4	13.5	8.0	17,900	214712999
7EH42CX-0*+TDR	GUH96C090C4M	16.4	13.5	8.0	18,100	214713000
7EH51CX-0*+TDR	GUH92C110C5M	16.4	13.0	8.0	17,300	214716845
7EH51CX-0*+TDR	GUH96C110C5M	16.4	13.0	8.0	17,500	214716847
7EH42CX-0*+TDR	GUH80C090C5M	16.4	13.5	8.0	17,900	214716818
7EH42CX-0*+TDR	GUH97M090C4M	16.4	13.5	8.0	18,000	214716827
7EH42CX-0*+TDR	GUH92C090C4M	16.4	13.5	8.0	17,900	214716821
7EH42CX-0*+TDR	GUH92C110C5M	16.4	13.5	8.0	17,900	214716823
7EH42CX-0*+TDR	GUH96C090C4M	16.4	13.5	8.0	18,100	214716824
EA(C;U)1P50/60C+TDR+TXV	GUH80C090C5M	16.4	13.0	7.8	17,000	210330418
7EC48CX-0*+TDR	GUH92C090C3M	16.4	13.5	7.8	17,000	214713061
7EC48CX-0*+TDR	GUH97M090C4M	16.4	13.5	7.8	17,000	214713068
7EC48CX-0*+TDR	GUH97M110C5M	16.4	13.5	7.8	17,200	214713070
7EC50/60CX-0*+TDR	GUH80C090C5M	16.4	13.0	7.8	17,000	214713073
7EH51CX-0*+TDR	GUH92C110C4M	16.4	13.0	7.8	17,400	214713020
7EH51CX-0*+TDR	GUH92C110C4M	16.4	13.0	7.8	17,400	214716844
7EC48CX-0*+TDR	GUH97M090C4M	16.4	13.5	7.8	17,000	214716892
7EC48CX-0*+TDR	GUH97M110C5M	16.4	13.5	7.8	17,200	214716894
7EC50/60CX-0*+TDR	GUH80C090C5M	16.4	13.0	7.8	17,000	214716897

Yearly running cost in 10 large cities$1,004-$2,488

Phoenix, AZ$1,210/yr
Miami, FL$1,004/yr
Houston, TX$1,084/yr
Atlanta, GA$1,060/yr
Los Angeles, CA$1,023/yr
New York, NY$2,488/yr
Chicago, IL$2,011/yr
Denver, CO$1,665/yr
Seattle, WA$1,018/yr
Minneapolis, MN$2,058/yr

At each state's average electricity price and the city's typical heating and cooling hours.

Questions5

What is the SEER2 rating of the Comfort-Aire HRG1536S1R-**A?: The Comfort-Aire HRG1536S1R-**A is rated at up to 16.8 SEER2 and 13.5 EER2 for cooling and up to 8.7 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 243 certified matchups SEER2 ranges from 15.4-16.8.
Is the Comfort-Aire HRG1536S1R-**A good for cold climates?: It is not cold-climate certified: none of its matchups meet the ENERGY STAR cold-climate criteria (a COP of at least 1.75 at 5°F among other limits). In places with frequent sub-zero nights, pick a cold-climate 3-ton model.
How much does the Comfort-Aire HRG1536S1R-**A cost to run per year?: At its rated efficiency it costs about $1,004-$2,488 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,210 in Phoenix and $2,058 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
Which indoor units work with the Comfort-Aire HRG1536S1R-**A?: ENERGY STAR lists 243 certified combinations for this outdoor unit. The highest-rated ones use 7EC48CX-0*+TDR, EAD4X-48C+TDR, 7ED48CX-0*+TDR.
What refrigerant does the Comfort-Aire HRG1536S1R-**A use?: It uses R-410A. R-410A is being phased down under the EPA AIM Act, and new systems are moving to R-454B and R-32.

Running cost and savings

Pre-filled with this model. Pick your city and what you heat with today; everything else is optional.

Heat pump $1,187/yrYou save $630/yrSee details ↓

1. Where you live

StateCityElectricity ¢ per kWh

Adjust heating and cooling hours

Filled in from your city's climate. Change them if you run the system much more or less than usual.

Cooling hours full-load hours per yearHeating hours full-load hours per year

2. The heat pump Comfort-Aire HRG1536S1R-**A

Find a model (fills in the ratings below)

SEER2 cooling efficiencyHSPF2 heating efficiencyCooling capacity BTU/hHeating capacity BTU/h

3. What it replaces

Current heatingFurnace efficiency (AFUE %)Gas price, $/thermCurrent coolingOld AC rating SEER2 (10 ≈ 15+ years old)

4. Price replace the example with your quote

Installed price, $Rebates and incentives, $ utility, state

Heat pump, per year: $1,187
Current system, per year: $1,817
You save per year: $630
Payback: 21.4 years
Net after 10 years: -$7,199

Cooling $754Heating $433Electricity used: 7,418 kWhSaved vs. a minimum-efficiency heat pump: $201

Estimates use the unit's rated SEER2 and HSPF2, full-load hours derived from NOAA 1991-2020 degree days, average residential electricity prices from the U.S. EIA (12 months to July 2026) and fuel prices from EIA (2025 for natural gas, week of 2026-10-05 for propane and heating oil). Very cold days that need backup heat are not modelled. Federal minimum for comparison: 14.3 SEER2 / 7.5 HSPF2.

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Armstrong Air 4SHP17LE136P-**A16.8 SEER2 · 8.7 HSPF2
GE NS17H36SA4-**A16.8 SEER2 · 8.7 HSPF2
UTL UCHA-36HFDCSN4 · cold climate16.8 SEER2 · 9.0 HSPF2
Lennox EL17XP1-036-230A16.8 SEER2 · 8.7 HSPF2
York YZT36B2117.0 SEER2 · 7.8 HSPF2
Lennox ML17XP1-036-230A16.8 SEER2 · 8.7 HSPF2

See all 302 3 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of October 27, 2025. How we use the data.