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      2-ton central heat pump · Crossover Heat Pump

      Carrier 37MUHAQ24AA3+TIC2025-0016

      Average cooling efficiency and very good heating efficiency for a 2-ton central heat pump, and certified for cold climates.

      Ranks #194 of 331 2 ton central heat pumps for cooling efficiency, and costs about $659 a year to run in a mixed climate like Atlanta.

      SEER2
      17.5 Cooling efficiency over a season
      Average · beats 58%
      HSPF2
      9.5 Heating efficiency over a season
      Very good · beats 70%
      EER2
      11.0 Cooling efficiency on a 95°F day
      Below average · beats 23%
      Heat at 5°F
      19,000 BTU/h84% of its 47°F output
      Average · beats 48%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 19,000 BTU/h at 5°F.
      • It will heat most of the year - its HSPF2 beats 70% of central heat pumps.
      • You want steady temperatures and quiet running - the compressor varies its speed.

      Think twice if…

      • Nothing stands out - its ratings have no weak spot for its class.

      Calculate my running cost

      Details

      Specifications2 ton, R-454B
      General
      BrandCarrier
      Also sold asBryant, PAYNE HEATING AND COOLING
      Outdoor unit model37MUHAQ24AA3+TIC2025-0016
      SeriesCrossover Heat Pump
      TypeCentral heat pump
      Nominal size2 ton
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceJune 27, 2024
      Last certifiedJuly 16, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better17.5 (range 17.5)
      EER2Efficiency at 95°F outdoors11.0
      Cooling capacity23,600 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better9.5
      Capacity at 47°F22,600 BTU/h
      Capacity at 17°F17,400 BTU/h
      Capacity at 5°F19,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.04
      ENERGY STAR cold climateYes
      Heating output as it gets colder84% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with FT5ANXB24L at the standard test temperatures, in BTU/h:

      Certified matchups3 indoor units

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

      Indoor unitSEER2EER2HSPF2Heat @5°FAHRI ref.
      FT5ANXB24L · cold climate17.511.09.519,000217632121
      FT5ANXB24L · cold climate17.511.09.519,000217632820
      PF5TNXB24L · cold climate17.511.09.519,000217632823
      Yearly running cost in 10 large cities$628-$1,539

      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 37MUHAQ24AA3+TIC2025-0016?
      The Carrier 37MUHAQ24AA3+TIC2025-0016 is rated at up to 17.5 SEER2 and 11.0 EER2 for cooling and up to 9.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
      Is the Carrier 37MUHAQ24AA3+TIC2025-0016 good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 19,000 BTU/h at 5°F with a COP of 2.04, so it is still 2.0 times as efficient as electric resistance heat at that temperature.
      How much does the Carrier 37MUHAQ24AA3+TIC2025-0016 cost to run per year?
      At its rated efficiency it costs about $628-$1,539 a year in electricity in large U.S. cities, depending on climate and local rates - for example $758 in Phoenix and $1,270 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 37MUHAQ24AA3+TIC2025-0016?
      ENERGY STAR lists 3 certified combinations for this outdoor unit. The highest-rated ones use FT5ANXB24L, PF5TNXB24L.
      What refrigerant does the Carrier 37MUHAQ24AA3+TIC2025-0016 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 $741/yrYou save $459/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 37MUHAQ24AA3+TIC2025-0016
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $741
      Current system, per year
      $1,201
      You save per year
      $459
      Payback
      19.6 years
      Net after 10 years
      -$4,406

      Cooling $475Heating $266Electricity used: 4,632 kWhSaved vs. a minimum-efficiency heat pump: $177

      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 July 16, 2026. How we use the data.