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      24,000 BTU mini-split heat pump · T-Pro-25ES

      TCL TSH24HEI2NAN0T24U

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

      Ranks #135 of 430 24,000 BTU mini-splits for cooling efficiency, and costs about $607 a year to run in a mixed climate like Atlanta.

      SEER2
      22.5 Cooling efficiency over a season
      Average · beats 56%
      HSPF2
      10.0 Heating efficiency over a season
      Average · beats 43%
      EER2
      11.5 Cooling efficiency on a 95°F day
      Below average · beats 13%
      Heat at 5°F
      22,400 BTU/h93% of its 47°F output
      Below average · beats 9%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 22,400 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-454B
      General
      BrandTCL
      Outdoor unit modelTSH24HEI2NAN0T24U
      SeriesT-Pro-25ES
      TypeMini-split heat pump
      Nominal size24,000 BTU
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceDecember 6, 2024
      Last certifiedSeptember 25, 2025
      Cooling
      SEER2Seasonal efficiency, higher is better22.5 (range 22.5)
      EER2Efficiency at 95°F outdoors11.5
      Cooling capacity24,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better10.0
      Capacity at 47°F24,000 BTU/h
      Capacity at 17°F24,000 BTU/h
      Capacity at 5°F22,400 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.80
      ENERGY STAR cold climateYes
      Heating output as it gets colder93% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with TSH24IEI2NAN0T24U at the standard test temperatures, in BTU/h:

      Certified matchups1 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.
      TSH24IEI2NAN0T24U · cold climate22.511.510.022,400216506199
      Yearly running cost in 10 large cities$503-$1,482

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

      Questions5
      What is the SEER2 rating of the TCL TSH24HEI2NAN0T24U?
      The TCL TSH24HEI2NAN0T24U is rated at up to 22.5 SEER2 and 11.5 EER2 for cooling and up to 10.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
      Is the TCL TSH24HEI2NAN0T24U good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 22,400 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 TCL TSH24HEI2NAN0T24U cost to run per year?
      At its rated efficiency it costs about $503-$1,482 a year in electricity in large U.S. cities, depending on climate and local rates - for example $639 in Phoenix and $1,253 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 TCL TSH24HEI2NAN0T24U?
      ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses TSH24IEI2NAN0T24U.
      What refrigerant does the TCL TSH24HEI2NAN0T24U 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 $644/yrYou save $593/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 TCL TSH24HEI2NAN0T24U
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $644
      Current system, per year
      $1,238
      You save per year
      $593
      Payback
      15.2 years
      Net after 10 years
      -$3,068

      Cooling $375Heating $269Electricity used: 4,027 kWhSaved vs. a minimum-efficiency heat pump: $305

      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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      See all 430 24,000 BTU mini-splits, ranked

      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of September 25, 2025. How we use the data.