HVAC Rated
    Menu

      4-ton central heat pump · TOP 24

      TCL THH60TEI2NAH0H24

      Average cooling efficiency and below average heating efficiency for a 4-ton central heat pump, and certified for cold climates.

      Ranks #184 of 319 4 ton central heat pumps for cooling efficiency, and costs about $1,682 a year to run in a mixed climate like Atlanta.

      SEER2
      17.0 Cooling efficiency over a season
      Average · beats 49%
      HSPF2
      8.2 Heating efficiency over a season
      Below average · beats 28%
      EER2
      8.0 Cooling efficiency on a 95°F day
      Below average · beats 0%
      Heat at 5°F
      38,000 BTU/h72% 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 38,000 BTU/h at 5°F.
      • You want steady temperatures and quiet running - the compressor varies its speed.

      Think twice if…

      • You mainly need heat - its HSPF2 is below average for central heat pumps.

      Calculate my running cost

      Details

      Specifications4 ton, R-454B
      General
      BrandTCL
      Also sold asZERO
      Outdoor unit modelTHH60TEI2NAH0H24
      SeriesTOP 24
      TypeCentral heat pump
      Nominal size4 ton
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceNovember 2, 2024
      Last certifiedFebruary 17, 2025
      Cooling
      SEER2Seasonal efficiency, higher is better17.0 (range 17.0)
      EER2Efficiency at 95°F outdoors8.0
      Cooling capacity53,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better8.2
      Capacity at 47°F53,000 BTU/h
      Capacity at 17°F38,000 BTU/h
      Capacity at 5°F38,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.80
      ENERGY STAR cold climateYes
      Heating output as it gets colder72% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with THH60IEI2NAH0H24 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.
      THH60IEI2NAH0H24 · cold climate17.08.08.238,000216046768
      Same unit, other model numbers1

      These model numbers have exactly the same certified ratings and matchups as the TCL THH60TEI2NAH0H24: the same equipment under another brand, or a variant code for voltage, colour or market. Everything on this page applies to them.

      Yearly running cost in 10 large cities$1,467-$4,051

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

      Questions6
      What is the SEER2 rating of the TCL THH60TEI2NAH0H24?
      The TCL THH60TEI2NAH0H24 is rated at up to 17.0 SEER2 and 8.0 EER2 for cooling and up to 8.2 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
      Is the TCL THH60TEI2NAH0H24 good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 38,000 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 THH60TEI2NAH0H24 cost to run per year?
      At its rated efficiency it costs about $1,467-$4,051 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,826 in Phoenix and $3,398 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
      Is the TCL THH60TEI2NAH0H24 the same as the ZERO ZOV-60HDTB?
      Yes, as far as the certified ratings go. ENERGY STAR lists both model numbers with identical efficiency, capacity and matchups, which means the same outdoor unit sold under a different brand or with a minor variant code (voltage, colour or region). The full list is on this page.
      Which indoor units work with the TCL THH60TEI2NAH0H24?
      ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses THH60IEI2NAH0H24.
      What refrigerant does the TCL THH60TEI2NAH0H24 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 $1,821/yrYou save $911/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 THH60TEI2NAH0H24
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,821
      Current system, per year
      $2,733
      You save per year
      $911
      Payback
      21.9 years
      Net after 10 years
      -$10,885

      Cooling $1,097Heating $724Electricity used: 11,383 kWhSaved vs. a minimum-efficiency heat pump: $275

      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 4 ton models

      See all 319 4 ton central heat pumps, ranked

      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of February 17, 2025. How we use the data.