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      2-ton central heat pump · KXP Series

      KERR A-KXP24TA-1

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

      Ranks #275 of 331 2 ton central heat pumps for cooling efficiency, and costs about $730 a year to run in a mixed climate like Atlanta.

      SEER2
      16.0 Cooling efficiency over a season
      Below average · beats 26%
      HSPF2
      9.5 Heating efficiency over a season
      Very good · beats 70%
      EER2
      10.0 Cooling efficiency on a 95°F day
      Below average · beats 10%
      Heat at 5°F
      21,000 BTU/h84% of its 47°F output
      Below average · beats 5%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 21,000 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…

      • Cooling cost matters most - its SEER2 is below average for central heat pumps.

      Calculate my running cost

      Details

      Specifications2 ton, R-454B
      General
      BrandKERR
      Outdoor unit modelA-KXP24TA-1
      SeriesKXP Series
      TypeCentral heat pump
      Nominal size2 ton
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceDecember 15, 2024
      Last certifiedMarch 13, 2025
      Cooling
      SEER2Seasonal efficiency, higher is better16.0 (range 16.0)
      EER2Efficiency at 95°F outdoors10.0
      Cooling capacity24,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better9.5
      Capacity at 47°F25,000 BTU/h
      Capacity at 17°F19,700 BTU/h
      Capacity at 5°F21,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.80
      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 KXP18/24A1A at the standard test temperatures, in BTU/h:

      Certified matchups2 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.
      KXP18/24A1A · cold climate16.010.09.521,000216623774
      KXP18/24B1A · cold climate16.010.09.521,000216623775
      Yearly running cost in 10 large cities$695-$1,705

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

      Questions5
      What is the SEER2 rating of the KERR A-KXP24TA-1?
      The KERR A-KXP24TA-1 is rated at up to 16.0 SEER2 and 10.0 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 KERR A-KXP24TA-1 good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 21,000 BTU/h at 5°F with a COP of 1.80, so it is still 1.8 times as efficient as electric resistance heat at that temperature.
      How much does the KERR A-KXP24TA-1 cost to run per year?
      At its rated efficiency it costs about $695-$1,705 a year in electricity in large U.S. cities, depending on climate and local rates - for example $842 in Phoenix and $1,406 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 KERR A-KXP24TA-1?
      ENERGY STAR lists 2 certified combinations for this outdoor unit. The highest-rated ones use KXP18/24A1A, KXP18/24B1A.
      What refrigerant does the KERR A-KXP24TA-1 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 $823/yrYou save $431/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 KERR A-KXP24TA-1
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $823
      Current system, per year
      $1,254
      You save per year
      $431
      Payback
      20.9 years
      Net after 10 years
      -$4,689

      Cooling $528Heating $295Electricity used: 5,142 kWhSaved vs. a minimum-efficiency heat pump: $141

      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 March 13, 2025. How we use the data.