What is the SEER2 rating of the Comfort-Aire HRG1548S1R-**A?

The Comfort-Aire HRG1548S1R-**A is rated at up to 15.6 SEER2 and 12.5 EER2 for cooling and up to 8.3 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 112 certified matchups SEER2 ranges from 15.2-15.6.

Is the Comfort-Aire HRG1548S1R-**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 4-ton model.

How much does the Comfort-Aire HRG1548S1R-**A cost to run per year?

At its rated efficiency it costs about $1,426-$3,502 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,715 in Phoenix and $2,892 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 HRG1548S1R-**A?

ENERGY STAR lists 112 certified combinations for this outdoor unit. The highest-rated ones use 7EH51CX-0*+TDR, EA(C;U)1P49C+TDR+TXV, EA(C;U)1P60C+TDR+TXV.

What refrigerant does the Comfort-Aire HRG1548S1R-**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.

4-ton central heat pump · HRG15 Series

Comfort-Aire HRG1548S1R-**A

Below average cooling and heating efficiency for a 4-ton central heat pump, but not rated for cold climates.

Ranks #273 of 319 4 ton central heat pumps for cooling efficiency, and costs about $1,495 a year to run in a mixed climate like Atlanta.

SEER2: 15.6 Cooling efficiency over a season
Below average · beats 17%
HSPF2: 8.3 Heating efficiency over a season
Below average · beats 30%
EER2: 12.5 Cooling efficiency on a 95°F day
Very good · beats 80%
Heat at 5°F: 25,600 BTU/h57% of its 47°F output
Excellent · beats 94%

A good fit if…

You want a choice of indoor units - 112 certified pairings.

Think twice if…

You often see nights below 0°F - it is not cold-climate certified.
Cooling cost matters most - its SEER2 is below average for central heat pumps.
You mainly need heat - its HSPF2 is below average for central heat pumps.
You want the newest refrigerant - it uses R-410A, which is being phased down.

Calculate my running cost

Details

Specifications4 ton, R-410A

General
Brand	Comfort-Aire
Also sold as	Century
Outdoor unit model	HRG1548S1R-**A
Series	HRG15 Series
Type	Central heat pump
Nominal size	4 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	15.6 (range 15.2-15.6)
EER2Efficiency at 95°F outdoors	12.5-13.0
Cooling capacity	46,000-48,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	8.0-8.3
Capacity at 47°F	44,500-47,000 BTU/h
Capacity at 17°F	30,000-31,600 BTU/h
Capacity at 5°F	24,200-25,600 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.18-2.38
ENERGY STAR cold climate	No

Heating output as it gets colder57% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with 7EH51CX-0*+TDR at the standard test temperatures, in BTU/h:

Certified matchups112 indoor units

The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 112 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.
7EH51CX-0*+TDR	GUH80C090C5M	15.6	12.5	8.3	25,200	214713175
7EH51CX-0*+TDR	GUH80C090C5M	15.6	12.5	8.3	25,200	214716999
EA(C;U)1P49C+TDR+TXV	GUH80C090C5M	15.6	13.0	8.1	25,000	210331155
EA(C;U)1P60C+TDR+TXV	GUH80C090C5M	15.6	13.0	8.1	25,200	210331170
EA(C;U)1P60C+TDR+TXV	GUH80C090C5M	15.6	13.0	8.1	25,200	210330329
EA(C;U)1P49C+TDR+TXV	GUH80C090C5M	15.6	13.0	8.1	25,000	210330321
7EC60CX-0*+TDR	GUH80C090C5M	15.6	13.0	8.1	25,200	214713231
7EC49CX-0*+TDR	GUH80C090C5M	15.6	13.0	8.1	25,000	214713207
7EC60CX-0*+TDR	GUH80C090C5M	15.6	13.0	8.1	25,200	214717055
7EC49CX-0*+TDR	GUH80C090C5M	15.6	13.0	8.1	25,000	214717031
EA(C;U)1P60C+TDR+TXV	GUH80C110C5M	15.4	12.5	8.3	25,400	210330331
EA(C;U)1P60C+TDR+TXV	GUH92C110C5M	15.4	12.5	8.3	25,400	210330332
EA(C;U)1P60C+TDR+TXV	GUH92C110C5M	15.4	12.5	8.3	25,400	210331173
EA(C;U)1P60C+TDR+TXV	GUH80C110C5M	15.4	12.5	8.3	25,400	210331172
7EC60CX-0*+TDR	GUH92C110C5M	15.4	12.5	8.3	25,400	214713235
7EC60CX-0*+TDR	GUH80C110C5M	15.4	12.5	8.3	25,400	214713232
7EH51CX-0*+TDR	GUH92C110C4M	15.4	12.5	8.3	25,600	214713178
7EC60CX-0*+TDR	GUH80C110C5M	15.4	12.5	8.3	25,400	214717056
7EH51CX-0*+TDR	GUH92C110C4M	15.4	12.5	8.3	25,600	214717002
7EH51CX-0*+TDR	GUH96C110C5M	15.4	12.5	8.3	25,400	214717004
7EC60CX-0*+TDR	GUH92C110C5M	15.4	12.5	8.3	25,400	214717059
7EH51CX-0*+TDR	GUH96C110C5M	15.4	12.5	8.3	25,400	214713180
EA(C;U)1P48B+TDR+TXV	GUH80C090C5M	15.4	12.5	8.1	24,400	210330315
EA(C;U)1P60C+TDR+TXV	GUH96C110C5M	15.4	12.5	8.1	25,200	210330330
EA(C;U)1P49C+TDR+TXV	GUH92C110C5M	15.4	12.5	8.1	25,000	210331156
EA(C;U)1P60C+TDR+TXV	GUH96C090C4M	15.4	12.5	8.1	25,400	210331176
EA(C;U)1P60C+TDR+TXV	GUH96C110C5M	15.4	12.5	8.1	25,200	210331171
EA(C;U)1P48B+TDR+TXV	GUH92C110C5M	15.4	12.5	8.1	24,400	210331142
EA(C;U)1P60C+TDR+TXV	GUH92C110C4M	15.4	12.5	8.1	25,200	210331175
EA(C;U)1P60C+TDR+TXV	GUH96C090C4M	15.4	12.5	8.1	25,400	210330335
EA(C;U)1P48B+TDR+TXV	GUH92C110C5M	15.4	12.5	8.1	24,400	210330316
EA(C;U)1P49C+TDR+TXV	GUH92C110C5M	15.4	12.5	8.1	25,000	210330322
EA(C;U)1P60C+TDR+TXV	GUH92C110C4M	15.4	12.5	8.1	25,200	210330334
EA(C;U)1P48B+TDR+TXV	GUH80C090C5M	15.4	12.5	8.1	24,400	210331141
7EC60CX-0*+TDR	GUH92C110C4M	15.4	12.5	8.1	25,200	214713234
7EC60CX-0*+TDR	GUH96C090C4M	15.4	12.5	8.1	25,400	214713236
7EC60CX-0*+TDR	GUH96C110C5M	15.4	12.5	8.1	25,200	214713237
7EC48CX-0*+TDR	GUH92C110C5M	15.4	12.5	8.1	24,400	214713199
7EC48CX-0*+TDR	GUH80C090C5M	15.4	12.5	8.1	24,400	214713195
7EC49CX-0*+TDR	GUH92C110C5M	15.4	12.5	8.1	25,000	214713211
7EC49CX-0*+TDR	GUH92C110C5M	15.4	12.5	8.1	25,000	214717035
7EC60CX-0*+TDR	GUH92C110C4M	15.4	12.5	8.1	25,200	214717058
7EC60CX-0*+TDR	GUH96C090C4M	15.4	12.5	8.1	25,400	214717060
7EC60CX-0*+TDR	GUH96C110C5M	15.4	12.5	8.1	25,200	214717061
7EC48CX-0*+TDR	GUH80C090C5M	15.4	12.5	8.1	24,400	214717019
7EC48CX-0*+TDR	GUH92C110C5M	15.4	12.5	8.1	24,400	214717023
HCG48V1P	-	15.2	12.5	8.3	24,200	210330313
HCG48V1P	-	15.2	12.5	8.3	24,200	210331136
7EH51CX-0*+TDR	GUH92C090C4M	15.2	12.5	8.3	25,600	214713177
7EH51CX-0*+TDR	GUH80C110C5M	15.2	12.5	8.3	25,600	214713176
7EH51CX-0*+TDR	GUH92C110C5M	15.2	12.5	8.3	25,600	214713179
7EH51CX-0*+TDR	GUH92C110C5M	15.2	12.5	8.3	25,600	214717003
7EH51CX-0*+TDR	GUH80C110C5M	15.2	12.5	8.3	25,600	214717000
7EH51CX-0*+TDR	GUH92C090C4M	15.2	12.5	8.3	25,600	214717001
EA(C;U)1P49C+TDR+TXV	GUH96C110C5M	15.2	12.5	8.1	25,400	210330323
EA(C;U)1P60C+TDR+TXV	GUH92C090C4M	15.2	12.5	8.1	25,200	210331174
EA(C;U)1P49C+TDR+TXV	GUH80C110C5M	15.2	12.5	8.1	25,600	210331158
EA(C;U)1P48B+TDR+TXV	GUH96C110C5M	15.2	12.5	8.1	24,200	210331143
EA(C;U)1P48B+TDR+TXV	GUH92C110C4M	15.2	12.5	8.1	24,400	210331146
EA(C;U)1P49C+TDR+TXV	GUH96C090C4M	15.2	12.5	8.1	25,400	210330326

Yearly running cost in 10 large cities$1,426-$3,502

Phoenix, AZ$1,715/yr
Miami, FL$1,426/yr
Houston, TX$1,535/yr
Atlanta, GA$1,495/yr
Los Angeles, CA$1,442/yr
New York, NY$3,502/yr
Chicago, IL$2,829/yr
Denver, CO$2,341/yr
Seattle, WA$1,430/yr
Minneapolis, MN$2,892/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 HRG1548S1R-**A?: The Comfort-Aire HRG1548S1R-**A is rated at up to 15.6 SEER2 and 12.5 EER2 for cooling and up to 8.3 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 112 certified matchups SEER2 ranges from 15.2-15.6.
Is the Comfort-Aire HRG1548S1R-**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 4-ton model.
How much does the Comfort-Aire HRG1548S1R-**A cost to run per year?: At its rated efficiency it costs about $1,426-$3,502 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,715 in Phoenix and $2,892 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 HRG1548S1R-**A?: ENERGY STAR lists 112 certified combinations for this outdoor unit. The highest-rated ones use 7EH51CX-0*+TDR, EA(C;U)1P49C+TDR+TXV, EA(C;U)1P60C+TDR+TXV.
What refrigerant does the Comfort-Aire HRG1548S1R-**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 $1,679/yrYou save $729/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 HRG1548S1R-**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: $1,679
Current system, per year: $2,408
You save per year: $729
Payback: 24.7 years
Net after 10 years: -$10,707

Cooling $1,072Heating $607Electricity used: 10,494 kWhSaved vs. a minimum-efficiency heat pump: $162

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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AC Pro SPHP-Y-V060BB · cold climate15.5 SEER2 · 8.6 HSPF2
Ducane 4HP17L48P-**A15.6 SEER2 · 8.5 HSPF2
MRCOOL MVP-60-HP-C-230A00-O · cold climate15.5 SEER2 · 8.6 HSPF2
Thermal Zone TZPLV482PA · cold climate15.6 SEER2 · 9.4 HSPF2
Bryant 37MUHAQ48AA3+KSAIC0701230 · cold climate15.5 SEER2 · 8.5 HSPF2

See all 319 4 ton central heat pumps, ranked

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