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      1.5-ton central heat pump · TH24

      TCL THH24HES2NAGOH24

      Below average cooling and heating efficiency for a 1.5-ton central heat pump, and certified for cold climates.

      Ranks #117 of 170 1.5 ton central heat pumps for cooling efficiency, and costs about $707 a year to run in a mixed climate like Atlanta.

      SEER2
      16.0 Cooling efficiency over a season
      Below average · beats 26%
      HSPF2
      8.1 Heating efficiency over a season
      Below average · beats 20%
      EER2
      11.7 Cooling efficiency on a 95°F day
      Average · beats 43%
      Heat at 5°F
      19,000 BTU/h78% 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 19,000 BTU/h at 5°F.
      • You want a choice of indoor units - 78 certified pairings.

      Think twice if…

      • Cooling cost matters most - its SEER2 is below average for central heat pumps.
      • You mainly need heat - its HSPF2 is below average for central heat pumps.

      Calculate my running cost

      Details

      Specifications1.5 ton, R-454B
      General
      BrandTCL
      Outdoor unit modelTHH24HES2NAGOH24
      SeriesTH24
      TypeCentral heat pump
      Nominal size1.5 ton
      CompressorVariable-speed units run longer at low powerTwo-stage
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceNovember 2, 2024
      Last certifiedMarch 9, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better16.0 (range 15.2-16.0)
      EER2Efficiency at 95°F outdoors11.7
      Cooling capacity21,000-23,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better8.1
      Capacity at 47°F21,200-23,000 BTU/h
      Capacity at 17°F19,000-21,000 BTU/h
      Capacity at 5°F18,000-19,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.75-1.80
      ENERGY STAR cold climateYes
      Heating output as it gets colder78% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with 5TEM6B02AV21+TDR at the standard test temperatures, in BTU/h:

      Certified matchups78 indoor units

      The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 78 are shown. Ask your installer for the AHRI reference number of the exact system you are quoted.

      Indoor unitFurnaceSEER2EER2HSPF2Heat @5°FAHRI ref.
      5TEM6B02AV21+TDR · cold climate-16.011.78.118,000216046821
      5TXCB003AS3 · cold climateA952V060BU4SB16.011.78.119,000217138425
      5TXCB003AS3 · cold climateS8V2B060M4PCB16.011.78.119,000217187567
      5TXCB004AS3 · cold climateS8V2B060M4PCB16.011.78.119,000217187568
      5TXCB004AS3 · cold climateS9V2B040U3VSB16.011.78.119,000217187571
      5TXCB004AS3 · cold climateS9V2B080D4VSB16.011.78.119,000217187573
      5TXCB004AS3 · cold climateS9V2B080U4VSB16.011.78.119,000217187574
      5TXCB004AS3 · cold climateL8V1B080U4VSB16.011.78.119,000217187575
      5TXCB004AS3 · cold climateA952V040BD3SB16.011.78.119,000217187576
      5TXCB004AS3 · cold climateA952V040BU3SB16.011.78.119,000217187577
      5TXCB004AS3 · cold climateA952V060BD3SB16.011.78.119,000217187578
      5TXCB004AS3 · cold climateA952V060BU4SB16.011.78.119,000217187579
      5TXCB003AS3 · cold climateS8X1A040M3PSC15.211.78.119,000217187548
      5TXCB003AS3 · cold climateS8X1B040M2PSC15.211.78.119,000217187549
      5TXCB004AS3 · cold climateS8X1B040M2PSC15.211.78.119,000217187550
      5TXCB003AS3 · cold climateS8X1B060M4PSC15.211.78.119,000217187551
      5TXCB004AS3 · cold climateS8X1B060M4PSC15.211.78.119,000217187552
      5TXCB003AS3 · cold climateS8X1B080M4PSC15.211.78.119,000217187553
      5TXCB004AS3 · cold climateS8X1B080M4PSC15.211.78.119,000217187554
      5TXCB003AS3 · cold climateS9X1B040D3PSB15.211.78.119,000217187555
      5TXCB004AS3 · cold climateS9X1B040D3PSB15.211.78.119,000217187556
      5TXCB003AS3 · cold climateS9X1B040U3PSB15.211.78.119,000217187557
      5TXCB004AS3 · cold climateS9X1B040U3PSB15.211.78.119,000217187558
      5TXCB003AS3 · cold climateS9X1B060D3PSB15.211.78.119,000217187559
      5TXCB004AS3 · cold climateS9X1B060D3PSB15.211.78.119,000217187560
      5TXCB003AS3 · cold climateS9X1B060U4PSB15.211.78.119,000217187561
      5TXCB004AS3 · cold climateS9X1B060U4PSB15.211.78.119,000217187562
      5TXCB003AS3 · cold climateS9X1B080D4PSB15.211.78.119,000217187563
      5TXCB004AS3 · cold climateS9X1B080D4PSB15.211.78.119,000217187564
      5TXCB003AS3 · cold climateS9X1B080U4PSB15.211.78.119,000217187565
      5TXCB004AS3 · cold climateS9X1B080U4PSB15.211.78.119,000217187566
      5TXCB003AS3 · cold climateS8V2B080M4PCB15.211.78.119,000217187569
      5TXCB004AS3 · cold climateS8V2B080M4PCB15.211.78.119,000217187570
      5TXCB004AS3 · cold climateS9V2B060U3VSB15.211.78.119,000217187572
      5TXCB004AS3 · cold climateA801X040BM2SD15.211.78.119,000217187589
      5TXCB004AS3 · cold climateA801X080BM4SD15.211.78.119,000217187590
      5TXCB003AS3 · cold climateA801X040BM2TD15.211.78.119,000217187591
      5TXCC005AS3 · cold climateS8V2C080M5PCB15.211.78.119,000217187588
      5TXCB004AS3 · cold climateA801X040BM2TD15.211.78.119,000217187592
      5TXCB004AS3 · cold climateA801X060BM4TD15.211.78.119,000217187593
      5TXCB004AS3 · cold climateA801X080BM4TD15.211.78.119,000217187594
      5TXCB004AS3 · cold climateA951X040BD3SA15.211.78.119,000217187595
      5TXCB004AS3 · cold climateA951X040BU3SA15.211.78.119,000217187596
      5TXCB004AS3 · cold climateA951X060BD3SA15.211.78.119,000217187597
      5TXCB004AS3 · cold climateA951X060BU4SA15.211.78.119,000217187598
      5TXCB004AS3 · cold climateA951X080BD4SA15.211.78.119,000217187599
      5TXCB004AS3 · cold climateA951X080BU4SA15.211.78.119,000217187600
      5TXCC005AS3 · cold climateA951X080CU5SA15.211.78.119,000217187601
      5TXCC005AS3 · cold climateA951X100CD5SA15.211.78.119,000217187602
      5TXCC005AS3 · cold climateS9X1C080U5PSB15.211.78.119,000217187603
      5TXCC005AS3 · cold climateS9X1C100D5PSB15.211.78.119,000217187604
      5TXCB003AS3 · cold climateL9X1A050U3VSA15.211.78.119,000217187615
      5TXCB003AS3 · cold climateL9X1B070U4VSA15.211.78.119,000217187616
      5TXCB003AS3 · cold climateA801X040AM3SD15.211.78.119,000217187617
      5TXCB003AS3 · cold climateA801X040BM2SD15.211.78.119,000217187618
      5TXCB003AS3 · cold climateA801X060BM4SD15.211.78.119,000217187619
      5TXCB003AS3 · cold climateA801X080BM4SD15.211.78.119,000217187620
      5TXCB003AS3 · cold climateA801X040AM3TD15.211.78.119,000217187621
      5TXCB003AS3 · cold climateA801X060BM4TD15.211.78.119,000217187622
      5TXCB003AS3 · cold climateA801X080BM4TD15.211.78.119,000217187623
      Yearly running cost in 10 large cities$618-$1,703

      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 THH24HES2NAGOH24?
      The TCL THH24HES2NAGOH24 is rated at up to 16.0 SEER2 and 11.7 EER2 for cooling and up to 8.1 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 78 certified matchups SEER2 ranges from 15.2-16.0.
      Is the TCL THH24HES2NAGOH24 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 1.80, so it is still 1.8 times as efficient as electric resistance heat at that temperature.
      How much does the TCL THH24HES2NAGOH24 cost to run per year?
      At its rated efficiency it costs about $618-$1,703 a year in electricity in large U.S. cities, depending on climate and local rates - for example $768 in Phoenix and $1,428 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 THH24HES2NAGOH24?
      ENERGY STAR lists 78 certified combinations for this outdoor unit. The highest-rated ones use 5TEM6B02AV21+TDR, 5TXCB003AS3, 5TXCB004AS3.
      What refrigerant does the TCL THH24HES2NAGOH24 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 $766/yrYou save $333/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 THH24HES2NAGOH24
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $766
      Current system, per year
      $1,099
      You save per year
      $333
      Payback
      24.0 years
      Net after 10 years
      -$4,670

      Cooling $462Heating $304Electricity used: 4,789 kWhSaved vs. a minimum-efficiency heat pump: $79

      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 1.5 ton models

      See all 170 1.5 ton central heat pumps, ranked

      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of March 9, 2026. How we use the data.