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      3.5-ton central heat pump · HRG15 Series

      Comfort-Aire HRG1542S1R-**A

      Below average cooling and heating efficiency for a 3.5-ton central heat pump, but not rated for cold climates.

      Ranks #90 of 138 3.5 ton central heat pumps for cooling efficiency, and costs about $1,294 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
      13.0 Cooling efficiency on a 95°F day
      Very good · beats 89%
      Heat at 5°F
      22,000 BTU/h52% of its 47°F output
      Average · beats 67%

      A good fit if…

      • You want a choice of indoor units - 60 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

      Specifications3.5 ton, R-410A
      General
      BrandComfort-Aire
      Also sold asCentury
      Outdoor unit modelHRG1542S1R-**A
      SeriesHRG15 Series
      TypeCentral heat pump
      Nominal size3.5 ton
      CompressorVariable-speed units run longer at low powerSingle stage
      RefrigerantR-410A
      Connected (smart) capableNo
      On the market sinceOctober 25, 2022
      Last certifiedOctober 27, 2025
      Cooling
      SEER2Seasonal efficiency, higher is better15.6 (range 15.2-15.6)
      EER2Efficiency at 95°F outdoors12.5-13.0
      Cooling capacity40,000-41,500 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better7.8-8.3
      Capacity at 47°F37,600-42,000 BTU/h
      Capacity at 17°F25,200-27,600 BTU/h
      Capacity at 5°F19,600-22,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.02-2.14
      ENERGY STAR cold climateNo
      Heating output as it gets colder52% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with EAD4X-48C+TDR at the standard test temperatures, in BTU/h:

      Certified matchups60 indoor units

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

      Indoor unitFurnaceSEER2EER2HSPF2Heat @5°FAHRI ref.
      EAD4X-48C+TDRGDD80C110C5M15.613.08.321,800213265446
      EAD4X-48C+TDRGDD80C110C5M15.613.08.321,800213265496
      7ED48CX-0*+TDRGDD80C110C5M15.613.08.321,800214713123
      7ED48CX-0*+TDRGDD80C110C5M15.613.08.321,800214716947
      HCG42V1P-15.413.08.120,200210331238
      HCG42V1P-15.413.08.120,200210330356
      EA(C;U)1P49C+TDR+TXVGUH92C110C4M15.412.57.819,800210331244
      EA(C;U)1P49C+TDR+TXVGUH80C090C5M15.412.57.819,800210331239
      EA(C;U)1P49C+TDR+TXVGUH80C110C5M15.412.57.819,800210330358
      EA(C;U)1P49C+TDR+TXVGUH80C090C5M15.412.57.819,800210330357
      EA(C;U)1P49C+TDR+TXVGUH92C110C4M15.412.57.819,800210330362
      EA(C;U)1P49C+TDR+TXVGUH80C110C5M15.412.57.819,800210331240
      7EC48CX-0*+TDRGUH92C110C4M15.413.07.819,600214713139
      7EC48CX-0*+TDRGUH92C110C5M15.413.07.819,900214713140
      7EC49CX-0*+TDRGUH80C090C5M15.412.57.819,800214713148
      7EC49CX-0*+TDRGUH80C110C5M15.412.57.819,800214713149
      7EC49CX-0*+TDRGUH92C110C4M15.412.57.819,800214713152
      7EC48CX-0*+TDRGUH80C110C5M15.413.07.819,600214713136
      7EH42BX-0*+TDRGUH80C070B3M15.413.07.820,200214713087
      7EH42BX-0*+TDRGUH80C090B4M15.413.07.820,000214713088
      7EH42BX-0*+TDRGUH80C070B3M15.413.07.820,200214716911
      7EH42BX-0*+TDRGUH80C090B4M15.413.07.820,000214716912
      7EC48CX-0*+TDRGUH80C110C5M15.413.07.819,600214716960
      7EC48CX-0*+TDRGUH92C110C4M15.413.07.819,600214716963
      7EC48CX-0*+TDRGUH92C110C5M15.413.07.819,900214716964
      7EC49CX-0*+TDRGUH80C090C5M15.412.57.819,800214716972
      7EC49CX-0*+TDRGUH80C110C5M15.412.57.819,800214716973
      7EC49CX-0*+TDRGUH92C110C4M15.412.57.819,800214716976
      EAD4X-48C+TDRGDD96C110C5M15.213.08.222,000213265447
      EAD4X-48C+TDRGDD96C110C5M15.213.08.222,000213265497
      7ED48CX-0*+TDRGDD96C110C5M15.213.08.222,000214713126
      7ED48CX-0*+TDRGDD96C110C5M15.213.08.222,000214716950
      EA(C;U)1P49C+TDR+TXVGUH96C090C4M15.212.57.819,900210330363
      EA(C;U)1P49C+TDR+TXVGUH96C110C5M15.212.57.819,900210331242
      EA(C;U)1P49C+TDR+TXVGUH92C110C5M15.212.57.819,900210331241
      EA(C;U)1P49C+TDR+TXVGUH92C110C5M15.212.57.819,900210330359
      EA(C;U)1P49C+TDR+TXVGUH92C090C4M15.212.57.819,800210331243
      EA(C;U)1P49C+TDR+TXVGUH92C090C4M15.212.57.819,800210330361
      EA(C;U)1P49C+TDR+TXVGUH96C110C5M15.212.57.819,900210330360
      EA(C;U)1P49C+TDR+TXVGUH96C090C4M15.212.57.819,900210331245
      7EC48CX-0*+TDRGUH97M090C4M15.212.57.820,000214713144
      7EC48CX-0*+TDRGUH92C090C4M15.212.57.819,600214713138
      7EC49CX-0*+TDRGUH92C090C4M15.212.57.819,800214713151
      7EC49CX-0*+TDRGUH92C110C5M15.212.57.819,900214713153
      7EC49CX-0*+TDRGUH96C090C4M15.212.57.819,900214713154
      7EH48BX-0*+TDRGUH80C090B4M15.213.07.820,200214713106
      7EH48CX-0*+TDRGUH80C110C5M15.212.57.820,200214713112
      7EH48BX-0*+TDRGUH80C090B4M15.213.07.820,200214716930
      7EH48CX-0*+TDRGUH80C110C5M15.212.57.820,200214716936
      7EC49CX-0*+TDRGUH96C090C4M15.212.57.819,900214716978
      7EC49CX-0*+TDRGUH96C110C5M15.212.57.819,900214716979
      7EC48CX-0*+TDRGUH80C090C5M15.212.57.820,000214716959
      7EC48CX-0*+TDRGUH92C090C4M15.212.57.819,600214716962
      7EC48CX-0*+TDRGUH97M090C4M15.212.57.820,000214716968
      7EC49CX-0*+TDRGUH92C090C4M15.212.57.819,800214716975
      7EC49CX-0*+TDRGUH92C110C5M15.212.57.819,900214716977
      7EC49CX-0*+TDRGUH96C110C5M15.212.57.819,900214713155
      7EC48CX-0*+TDRGUH80C090C5M15.212.57.820,000214713135
      EAH1P48B+TDRGUH80C090B4M15.213.07.820,200212517536
      EAH1P48B+TDRGUH80C090B4M15.213.07.820,200212517535
      Yearly running cost in 10 large cities$1,231-$3,032

      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 HRG1542S1R-**A?
      The Comfort-Aire HRG1542S1R-**A is rated at up to 15.6 SEER2 and 13.0 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 60 certified matchups SEER2 ranges from 15.2-15.6.
      Is the Comfort-Aire HRG1542S1R-**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 3.5-ton model.
      How much does the Comfort-Aire HRG1542S1R-**A cost to run per year?
      At its rated efficiency it costs about $1,231-$3,032 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,482 in Phoenix and $2,506 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 HRG1542S1R-**A?
      ENERGY STAR lists 60 certified combinations for this outdoor unit. The highest-rated ones use EAD4X-48C+TDR, 7ED48CX-0*+TDR, HCG42V1P.
      What refrigerant does the Comfort-Aire HRG1542S1R-**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 $1,451/yrYou save $630/yrSee details ↓
      1. Where you live
      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.

      2. The heat pump Comfort-Aire HRG1542S1R-**A
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,451
      Current system, per year
      $2,081
      You save per year
      $630
      Payback
      24.6 years
      Net after 10 years
      -$9,201

      Cooling $925Heating $526Electricity used: 9,071 kWhSaved vs. a minimum-efficiency heat pump: $140

      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.

      Similar 3.5 ton models

      See all 138 3.5 ton central heat pumps, ranked

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