HVAC Rated
    Menu

      1.5-ton central heat pump · HRG15 Series

      Century HRG1**8S1R-**A

      Average cooling efficiency and below average heating efficiency for a 1.5-ton central heat pump, but not rated for cold climates.

      Ranks #82 of 170 1.5 ton central heat pumps for cooling efficiency, and costs about $562 a year to run in a mixed climate like Atlanta.

      SEER2
      16.8 Cooling efficiency over a season
      Average · beats 45%
      HSPF2
      8.1 Heating efficiency over a season
      Below average · beats 20%
      EER2
      13.5 Cooling efficiency on a 95°F day
      Excellent · beats 95%
      Heat at 5°F
      8,400 BTU/h45% of its 47°F output
      Average · beats 58%

      A good fit if…

      • You want a choice of indoor units - 64 certified pairings.

      Think twice if…

      • You often see nights below 0°F - it is not cold-climate certified.
      • 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.
      • Comfort and noise matter - a single-stage compressor runs only full-on or off.

      Calculate my running cost

      Details

      Specifications1.5 ton, R-410A
      General
      BrandCentury
      Also sold asComfort-Aire
      Outdoor unit modelHRG1**8S1R-**A
      SeriesHRG15 Series
      TypeCentral heat pump
      Nominal size1.5 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 better16.8 (range 15.2-16.8)
      EER2Efficiency at 95°F outdoors12.5-14.0
      Cooling capacity18,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better7.8-8.1
      Capacity at 47°F17,000-18,000 BTU/h
      Capacity at 17°F10,400-11,200 BTU/h
      Capacity at 5°F7,600-8,400 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.92-2.10
      ENERGY STAR cold climateNo
      Heating output as it gets colder45% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with EA(C;U)1P30A+TDR+TXV at the standard test temperatures, in BTU/h:

      Certified matchups64 indoor units

      The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 64 are shown. Ask your installer for the AHRI reference number of the exact system you are quoted.

      Indoor unitFurnaceSEER2EER2HSPF2Heat @5°FAHRI ref.
      EA(C;U)1P30A+TDR+TXVGUH97M070B3M16.813.58.07,800210330536
      EA(C;U)1P30A+TDR+TXVGUH97M070B3M16.813.58.07,800210331462
      EAH1P30B*+TDR+TXVGUH92C045B3M16.813.58.07,900211734778
      EAH1P30B*+TDR+TXVGUH92C045B3M16.813.58.07,900211734780
      EAH1P30B*+TDR+TXVGUH80C070B3M16.813.58.07,700211734743
      EAH1P30B*+TDR+TXVGUH80C070B3M16.813.58.07,700211734744
      EAH1P30B*+TDR+TXVGUH97M070B3M16.814.08.07,800211734879
      EAH1P30B*+TDR+TXVGUH97M070B3M16.814.08.07,800211734877
      EAH1P30B*+TDR+TXVGUH92C070B3M16.813.58.07,600211734790
      EAH1P30B*+TDR+TXVGUH92C070B3M16.813.58.07,600211734789
      EA(C;U)1P30A+TDR+TXVGUH80C045A3M16.813.57.87,700210331454
      EA(C;U)1P30A+TDR+TXVGUH80C045A3M16.813.57.87,700210330528
      EA(C;U)1P30A+TDR+TXVGUH80C070B3M16.813.57.87,700210330529
      EA(C;U)1P30A+TDR+TXVGUH80C070B3M16.813.57.87,700210331455
      EA(C;U)1P30A+TDR+TXVGUH92C070B3M16.613.57.87,700210330533
      EA(C;U)1P30A+TDR+TXVGUH92C070B3M16.613.57.87,700210331459
      EA(C;U)1P24A+TDR+TXVGUH97M070B3M16.413.58.18,400210330526
      EA(C;U)1P24A+TDR+TXVGUH97M070B3M16.413.58.18,400210331450
      EAH1P24B*+TDR+TXVGUH80C070B3M16.413.58.18,200211734524
      EAH1P24B*+TDR+TXVGUH80C070B3M16.413.58.18,200211734525
      EAH1P24B*+TDR+TXVGUH92C070B3M16.413.58.18,200211734582
      EAH1P24B*+TDR+TXVGUH92C070B3M16.413.58.18,200211734581
      EAH1P24B*+TDR+TXVGUH97M070B3M16.413.58.18,400211734646
      EAH1P24B*+TDR+TXVGUH97M070B3M16.413.58.18,400211734648
      EAH1P24B*+TDR+TXVGUH92C045B3M16.413.58.18,200211734565
      EAH1P24B*+TDR+TXVGUH92C045B3M16.413.58.18,200211734564
      EA(C;U)1P24A+TDR+TXVGUH80C070A3M16.413.58.08,200210331441
      EA(C;U)1P24A+TDR+TXVGUH80C070B3M16.413.58.08,200210330519
      EA(C;U)1P24A+TDR+TXVGUH80C070B3M16.413.58.08,200210331443
      EA(C;U)1P24A+TDR+TXVGUH80C070A3M16.413.58.08,200210330517
      EAH1P24A*+TDR+TXVGUH80C070A3M16.413.58.08,000211734369
      EAH1P24A*+TDR+TXVGUH80C070A3M16.413.58.08,000211734372
      EAH1P24A*+TDR+TXVGUH80C045A3M16.413.58.08,000211734352
      EAH1P24A*+TDR+TXVGUH80C045A3M16.413.58.08,000211734353
      EA(C;U)1P30A+TDR+TXVGUH92C045B3M16.413.57.87,600210331458
      EA(C;U)1P30A+TDR+TXVGUH92C045B3M16.413.57.87,600210330532
      EA(C;U)1P30A+TDR+TXVGUH96C070B3M16.413.57.87,700210331457
      EA(C;U)1P30A+TDR+TXVGUH96C070B3M16.413.57.87,700210330531
      EA(C;U)1P30A+TDR+TXVGUH96C045B3M16.413.57.87,700210331456
      EA(C;U)1P30A+TDR+TXVGUH80C070A3M16.413.57.87,700210330527
      EA(C;U)1P30A+TDR+TXVGUH80C070A3M16.413.57.87,700210331453
      EA(C;U)1P30A+TDR+TXVGUH96C045B3M16.413.57.87,700210330530
      EAH1P30B*+TDR+TXVGUH96C045B3M16.413.57.87,700211734823
      EAH1P30B*+TDR+TXVGUH96C045B3M16.413.57.87,700211734822
      EAH1P30B*+TDR+TXVGUH96C070B3M16.413.57.87,700211734843
      EAH1P30B*+TDR+TXVGUH96C070B3M16.413.57.87,700211734845
      EA(C;U)1P24A+TDR+TXVGUH92C070B3M16.213.58.18,200210331446
      EA(C;U)1P24A+TDR+TXVGUH92C070B3M16.213.58.18,200210330522
      EA(C;U)1P24A+TDR+TXVGUH80C045A3M16.213.58.08,200210331442
      EA(C;U)1P24A+TDR+TXVGUH80C045A3M16.213.58.08,200210330518
      EAH1P24B*+TDR+TXVGUH96C045B3M16.013.58.18,200211734609
      EAH1P24B*+TDR+TXVGUH96C045B3M16.013.58.18,200211734610
      EAH1P24B*+TDR+TXVGUH96C070B3M16.013.58.18,200211734622
      EAH1P24B*+TDR+TXVGUH96C070B3M16.013.58.18,200211734621
      EA(C;U)1P24A+TDR+TXVGUH92C045B3M16.013.58.08,200210331445
      EA(C;U)1P24A+TDR+TXVGUH96C045B3M16.013.58.08,200210330520
      EA(C;U)1P24A+TDR+TXVGUH96C045B3M16.013.58.08,200210331444
      EA(C;U)1P24A+TDR+TXVGUH96C070B3M16.013.58.08,200210331447
      EA(C;U)1P24A+TDR+TXVGUH92C045B3M16.013.58.08,200210330521
      EA(C;U)1P24A+TDR+TXVGUH96C070B3M16.013.58.08,200210330523
      Yearly running cost in 10 large cities$503-$1,342

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

      Questions5
      What is the SEER2 rating of the Century HRG1**8S1R-**A?
      The Century HRG1**8S1R-**A is rated at up to 16.8 SEER2 and 13.5 EER2 for cooling and up to 8.1 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 64 certified matchups SEER2 ranges from 15.2-16.8.
      Is the Century HRG1**8S1R-**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 1.5-ton model.
      How much does the Century HRG1**8S1R-**A cost to run per year?
      At its rated efficiency it costs about $503-$1,342 a year in electricity in large U.S. cities, depending on climate and local rates - for example $620 in Phoenix and $1,121 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 Century HRG1**8S1R-**A?
      ENERGY STAR lists 64 certified combinations for this outdoor unit. The highest-rated ones use EA(C;U)1P30A+TDR+TXV, EAH1P30B*+TDR+TXV, EA(C;U)1P24A+TDR+TXV.
      What refrigerant does the Century HRG1**8S1R-**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 $615/yrYou save $300/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 Century HRG1**8S1R-**A
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $615
      Current system, per year
      $915
      You save per year
      $300
      Payback
      23.3 years
      Net after 10 years
      -$3,999

      Cooling $377Heating $238Electricity used: 3,844 kWhSaved vs. a minimum-efficiency heat pump: $85

      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 1.5 ton models

      See all 170 1.5 ton central heat pumps, ranked

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