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      24,000 BTU mini-split heat pump · KUSXA241A

      LG KUSXA241A

      Average cooling and heating efficiency for a 24,000 BTU mini-split heat pump, and certified for cold climates.

      Ranks #189 of 430 24,000 BTU mini-splits for cooling efficiency, and costs about $640 a year to run in a mixed climate like Atlanta.

      SEER2
      22.0 Cooling efficiency over a season
      Average · beats 48%
      HSPF2
      10.5 Heating efficiency over a season
      Average · beats 61%
      EER2
      13.0 Cooling efficiency on a 95°F day
      Average · beats 62%
      Heat at 5°F
      28,000 BTU/h104% 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 28,000 BTU/h at 5°F.
      • 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

      Specifications24,000 BTU, R-32
      General
      BrandLG
      Outdoor unit modelKUSXA241A
      SeriesKUSXA241A
      TypeMini-split heat pump
      Nominal size24,000 BTU
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-32
      Connected (smart) capableNo
      On the market sinceApril 8, 2026
      Last certifiedApril 22, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better22.0 (range 17.0-22.0)
      EER2Efficiency at 95°F outdoors11.3-13.0
      Cooling capacity23,000-24,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better9.3-10.5
      Capacity at 47°F26,000-27,000 BTU/h
      Capacity at 17°F17,000-17,700 BTU/h
      Capacity at 5°F23,000-28,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.86-2.00
      ENERGY STAR cold climateYes
      Heating output as it gets colder104% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with KNSCB241A at the standard test temperatures, in BTU/h:

      Certified matchups6 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.
      KNSCB241A · cold climate-22.013.010.528,000214825954
      KNSLA241A · cold climate-17.512.510.025,000215588568
      KNSLA241A · cold climate-17.512.510.025,000217284908
      KNUJB241A · cold climate-17.011.89.528,000214796351
      LKMMA24B1 · cold climateLNA**080B117.011.39.323,000217284948
      LKMMA24B1 · cold climateLNA**060B117.011.39.323,000217284947
      Yearly running cost in 10 large cities$516-$1,576

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

      Questions5
      What is the SEER2 rating of the LG KUSXA241A?
      The LG KUSXA241A is rated at up to 22.0 SEER2 and 13.0 EER2 for cooling and up to 10.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 6 certified matchups SEER2 ranges from 17.0-22.0.
      Is the LG KUSXA241A good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 28,000 BTU/h at 5°F with a COP of 2.00, so it is still 2.0 times as efficient as electric resistance heat at that temperature.
      How much does the LG KUSXA241A cost to run per year?
      At its rated efficiency it costs about $516-$1,576 a year in electricity in large U.S. cities, depending on climate and local rates - for example $663 in Phoenix and $1,337 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 LG KUSXA241A?
      ENERGY STAR lists 6 certified combinations for this outdoor unit. The highest-rated ones use KNSCB241A, KNSLA241A, KNUJB241A.
      What refrigerant does the LG KUSXA241A use?
      It uses 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 $672/yrYou save $615/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 LG KUSXA241A
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $672
      Current system, per year
      $1,287
      You save per year
      $615
      Payback
      14.6 years
      Net after 10 years
      -$2,854

      Cooling $384Heating $288Electricity used: 4,200 kWhSaved vs. a minimum-efficiency heat pump: $322

      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.

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      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of April 22, 2026. How we use the data.