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      2-ton central heat pump · 2-STAGE 18 SEER HP

      Carrier 27TPA824A**30

      Very good cooling efficiency and below average heating efficiency for a 2-ton central heat pump, but not rated for cold climates.

      Ranks #100 of 331 2 ton central heat pumps for cooling efficiency, and costs about $723 a year to run in a mixed climate like Atlanta.

      SEER2
      18.5 Cooling efficiency over a season
      Very good · beats 77%
      HSPF2
      8.5 Heating efficiency over a season
      Below average · beats 38%
      EER2
      14.0 Cooling efficiency on a 95°F day
      Excellent · beats 98%
      Heat at 5°F
      11,500 BTU/h45% of its 47°F output
      Very good · beats 81%

      A good fit if…

      • You want low cooling bills - its SEER2 beats 77% of central heat pumps.
      • You want a choice of indoor units - 580 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.

      Calculate my running cost

      Details

      Specifications2 ton, R-454B
      General
      BrandCarrier
      Outdoor unit model27TPA824A**30
      Series2-STAGE 18 SEER HP
      TypeCentral heat pump
      Nominal size2 ton
      CompressorVariable-speed units run longer at low powerTwo-stage
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceNovember 4, 2024
      Last certifiedSeptember 15, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better18.5 (range 15.2-18.5)
      EER2Efficiency at 95°F outdoors11.5-14.0
      Cooling capacity22,200-25,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better7.8-8.5
      Capacity at 47°F24,000-25,400 BTU/h
      Capacity at 17°F14,100-15,000 BTU/h
      Capacity at 5°F10,700-11,500 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.90-2.24
      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 CVAVA3817XMA at the standard test temperatures, in BTU/h:

      Certified matchups580 indoor units

      The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 580 are shown. Ask your installer for the AHRI reference number of the exact system you are quoted.

      Indoor unitFurnaceSEER2EER2HSPF2Heat @5°FAHRI ref.
      CVAVA3817XMA58CU*A040C17**1218.514.07.811,000215618606
      CVAMA3217XMA58CU*A040C17**1218.514.07.811,000215614344
      CVAMA3217XMA58SP*B070V14**1218.514.07.810,900215614371
      CVAMA3217XMA58SU*B040M17**1218.514.07.810,800215614410
      CVAMA3217XMA58TP*B070V14**1218.514.07.810,900215614522
      CAA**2517AM58CU*A040C17**1218.013.08.511,300215644360
      CAA**3721AM58CU*A040C17**1218.013.08.511,300215647745
      CAA**3721AM58SP*B110V21**2218.013.08.511,100215647824
      CAA**3721AM58SU*B040M17**1218.013.08.511,100215647843
      CAA**3721AM58SU*B060M17**1618.013.58.511,200215647868
      CAA**3721AM58SU*B080M21**2018.013.58.511,100215647892
      CAA**3721AM58TP*B110V21**2218.013.08.511,200215648128
      CAA**3721AM59SP6B080V21**2018.013.08.511,200215648372
      CAA**3721AM59SU5B100M21**2018.013.08.511,200215648487
      CAA**3721AM59TP6C080V21**2018.013.08.511,200215648690
      CAA**3721AM59TP6C100V21**2218.013.08.511,200215648739
      CAA**3721AM59TP7A080V21**2018.013.08.511,200215720921
      CAA**3721AM59TP7A100V21**2218.013.08.511,200215720953
      CAA**2517AM58SP*B070V14**1218.013.08.111,000215644398
      CAA**2517AM58SP*B070V17**1618.013.08.111,100215644417
      CAA**2517AM58SU*B040M17**1218.013.08.111,100215644457
      CAA**2517AM58TN*B070C14**1218.013.08.111,100215644535
      CAA**2517AM58TP*B070V14**1218.013.08.111,000215644622
      CAA**3721AM58TP*B070V17**1618.013.08.111,100215648067
      CAA**3721AM58TP*B090V17**1618.013.08.111,100215648091
      CAA**3721AM58SP*B090V17**1618.013.08.111,100215647784
      CAA**3721AM58TN*B070C17**1618.013.08.111,100215647967
      CAA**3721AM58TN*B090C17**1618.013.08.111,100215648006
      CAA**3721AM59TP6C060V17**1618.013.08.111,200215648639
      CAA**3721AMGG96VTAB48060B**18.013.08.111,200215648641
      CAA**3721AM59SP6B060V17**1618.013.08.111,200215648333
      CAA**3721AM59SP6B100V21**2018.013.08.111,100215648392
      CAA**3721AM59SU5B100M21**2218.013.08.111,100215648512
      CAA**3721AM59TN6C080C17**1418.013.08.111,200215648552
      CAA**3721AM59TP6C100V21**2018.013.08.111,100215648713
      CAA**3721AMGG96VTAB60100C**18.013.08.111,100215648714
      FG5ANXC36L-18.013.08.110,700215653192
      FT5AN(B,X)C36L-18.013.08.110,700215653191
      CVAVA3117XMA58SP*B070V17**1618.013.58.011,100215616310
      CVAVA3817XMAOVMAAB04211218.013.58.011,200215618987
      CVAVA3817XMA59TN7A080C17**1618.013.58.011,200215714590
      CVAVA3817XMA59TN6C060C17**1418.013.58.011,200215618873
      CVAVA3817XMA58TP*B090V17**1618.014.08.011,100215618764
      CVAVA3817XMA58TP*B070V17**1618.013.58.011,100215618748
      CVAVA3817XMA58TN*B070C17**1618.013.58.011,100215618692
      CVAVA3817XMA58TN*B070C14**1218.013.58.011,100215618678
      CVAVA3817XMA58SP*B090V17**1618.014.08.011,100215618646
      CVAMA3217XMAOVMAAB04211218.013.58.011,200215614865
      CVAVA3621XMA59TP6C080V21**2018.013.57.810,800215617731
      CVAVA3721XMA58SP*B070V17**1618.013.57.810,900215617850
      CVAVA3721XMA58SU*B100M21**2018.013.57.810,900215617959
      CVAVA3721XMA58TN*B090C17**1618.013.57.810,800215618020
      CVAVA3721XMA59MN7C080C21**2018.013.57.810,800215618206
      CVAMA3117XMA59CU5B060C17**1618.013.57.811,000215614023
      CVAVA3721XMA59MN7C100C21**2218.013.57.810,800215618220
      CVAVA3721XMA59TN6C080C17**1418.013.57.810,900215618403
      CVAVA3721XMA59TP6C080V21**2018.013.57.810,900215618501
      CVAMA3217XMA59TN6C060C17**1418.013.57.810,800215614717
      CVAVA3817XMA59SP6B060V17**1618.013.57.811,100215618827
      CVAMA3117XMA59SP6B060V17**1618.013.57.811,100215614104
      Yearly running cost in 10 large cities$587-$1,777

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

      Questions5
      What is the SEER2 rating of the Carrier 27TPA824A**30?
      The Carrier 27TPA824A**30 is rated at up to 18.5 SEER2 and 14.0 EER2 for cooling and up to 8.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 580 certified matchups SEER2 ranges from 15.2-18.5.
      Is the Carrier 27TPA824A**30 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 2-ton model.
      How much does the Carrier 27TPA824A**30 cost to run per year?
      At its rated efficiency it costs about $587-$1,777 a year in electricity in large U.S. cities, depending on climate and local rates - for example $753 in Phoenix and $1,507 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 Carrier 27TPA824A**30?
      ENERGY STAR lists 580 certified combinations for this outdoor unit. The highest-rated ones use CVAVA3817XMA, CVAMA3217XMA, CAA**2517AM.
      What refrigerant does the Carrier 27TPA824A**30 use?
      It uses R-454B.

      Running cost and savings

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

      Heat pump $762/yrYou save $450/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 Carrier 27TPA824A**30
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $762
      Current system, per year
      $1,212
      You save per year
      $450
      Payback
      18.9 years
      Net after 10 years
      -$3,996

      Cooling $438Heating $324Electricity used: 4,761 kWhSaved vs. a minimum-efficiency heat pump: $172

      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 2 ton models

      See all 331 2 ton central heat pumps, ranked

      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of September 15, 2026. How we use the data.