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      2-ton central heat pump · 15 Single-Stage Heat Pump with WeatherGuard Top

      Trane 5TWX5024A1

      Average cooling efficiency and below average heating efficiency for a 2-ton central heat pump, but not rated for cold climates.

      Ranks #268 of 331 2 ton central heat pumps for cooling efficiency, and costs about $729 a year to run in a mixed climate like Atlanta.

      SEER2
      16.5 Cooling efficiency over a season
      Average · beats 40%
      HSPF2
      8.1 Heating efficiency over a season
      Below average · beats 20%
      EER2
      12.0 Cooling efficiency on a 95°F day
      Average · beats 64%
      Heat at 5°F
      11,700 BTU/h51% of its 47°F output
      Very good · beats 76%

      A good fit if…

      • You want a choice of indoor units - 75 certified pairings.

      Think twice if…

      • You often see nights below 0°F - it is not cold-climate certified.
      • You mainly need heat - its HSPF2 is below average for central heat pumps.
      • Comfort and noise matter - a single-stage compressor runs only full-on or off.

      Calculate my running cost

      Details

      Specifications2 ton, R-454B
      General
      BrandTrane
      Outdoor unit model5TWX5024A1
      Series15 Single-Stage Heat Pump with WeatherGuard Top
      TypeCentral heat pump
      Nominal size2 ton
      CompressorVariable-speed units run longer at low powerSingle stage
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceFebruary 1, 2024
      Last certifiedJune 3, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better16.5 (range 15.2-16.5)
      EER2Efficiency at 95°F outdoors11.7-12.0
      Cooling capacity21,200-25,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better7.8-8.1
      Capacity at 47°F20,600-23,000 BTU/h
      Capacity at 17°F13,700-15,200 BTU/h
      Capacity at 5°F10,600-11,700 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.90-2.20
      ENERGY STAR cold climateNo
      Heating output as it gets colder51% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with 5TEMCD06AV41+TDR+TSTAT at the standard test temperatures, in BTU/h:

      Certified matchups75 indoor units

      The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 75 are shown. Ask your installer for the AHRI reference number of the exact system you are quoted.

      Indoor unitFurnaceSEER2EER2HSPF2Heat @5°FAHRI ref.
      5TEMCD06AV41+TDR+TSTAT-16.512.08.011,000215863968
      5TEMCD07AV51+TDR+TSTAT-16.512.07.811,000215863969
      5TEM6D04AV31+TDR+TSTAT-16.012.08.111,600214181742
      5TEM6D06AV41+TDR+TSTAT-16.012.08.111,500214181744
      5TXCB006AS3+TSTATS9X1B060U4PSB16.012.08.111,400214181988
      5TXCB006AS3+TSTATS9X2B060U4PSB16.012.08.111,400214181990
      5TXCC007AS3+TSTAT*UHMC100CCV416.012.08.111,100214182007
      5TEM6D05AV41+TDR+TSTAT-16.012.08.111,600215610970
      5TEMCD04AV31+TDR+TSTAT-16.012.08.111,100215863966
      5TEMCD05AV41+TDR+TSTAT-16.012.08.111,100215863967
      5TEM4B04AC31+TDR+TSTAT-16.012.08.011,400218154619
      5TXCB006AS3+TSTATS8V2B080M4PCA16.012.07.811,100214181923
      5TXCB006AS3+TSTATS8V2B080M4PDA16.012.07.811,100214181935
      5TXCB006AS3+TSTATS8X1B060M4PSC16.012.07.811,300214181939
      5TXCB006AS3+TSTATS8X1B060M4PTC16.012.07.811,300214181941
      5TXCB006AS3+TSTATS8X1B080M4PSC16.012.07.811,400214181943
      5TXCB006AS3+TSTATS8X1B080M4PTC16.012.07.811,400214181946
      5TXCB006AS3+TSTATS8X2B060M4PSC16.012.07.811,300214181948
      5TXCB006AS3+TSTATS8X2B060M4PTC16.012.07.811,300214181950
      5TXCB006AS3+TSTATS8X2B080M4PSC16.012.07.811,400214181952
      5TXCB006AS3+TSTATS8X2B080M4PTC16.012.07.811,400214181954
      5TXCB006AS3+TSTATS9V2B060U3VSA16.012.07.811,100214181970
      5TXCB004AS3+TSTATL9X1A050U3VSA16.011.77.810,600214181915
      5TXCB006AS3+TSTATS8V2A040M3PCB16.012.07.810,800214181999
      5TXCB006AS3+TSTATS8V2A040M3PDB16.012.07.810,800214181995
      5TXCB006AS3+TSTAT*UHMB060CCV316.012.07.811,000214181927
      5TEM6B03AV21+TDR+TSTAT-15.512.08.111,700214181740
      5TXCB006AS3+TSTATS9V2B080U4VSA15.512.08.111,300214181980
      5TXCB004AS3+TSTATS9X1B080U4PSB15.512.08.111,200214181902
      5TXCB004AS3+TSTATS9X2B080U4PSB15.512.08.111,200214181913
      5TXCB006AS3+TSTAT*UHMB080CCV315.512.08.111,100214181931
      5TXCB006AS3+TSTATS9V2B040U3PSC15.512.08.111,300214181964
      5TXCB006AS3+TSTATS9V2B040U3VSB15.512.08.111,300214181968
      5TXCB006AS3+TSTATS9V2B060U4PSC15.512.08.111,300214181974
      5TXCB006AS3+TSTATS9V2B080U4PSC15.512.08.111,300214181978
      5TXCB006AS3+TSTATS8V2B060M4PCA15.512.07.811,100214181919
      5TXCB006AS3+TSTATS8V2B060M4PDB15.512.07.811,100214181921
      5TXCB006AS3+TSTAT*UHMB060ACV315.512.07.810,900214181925
      5TXCB006AS3+TSTATL8V1B080U4VSB15.512.07.811,200214181962
      5TXCB006AS3+TSTATS8V2B060M4PDA15.512.07.811,100214181993
      5TXCB006AS3+TSTATS8V2A040M3PDA15.512.07.810,900214181997
      5TXCB006AS3+TSTATS8V2A040M3PCA15.512.07.810,900214182003
      5TXCB004AS3+TSTAT*UHMB080CCV315.512.07.811,000214181808
      5TXCB004AS3+TSTAT*UHMB080ACV315.512.07.811,000214181806
      5TXCB004AS3+TSTATS8V2B060M4PCA15.512.07.811,100214181828
      5TXCB004AS3+TSTATS8V2B060M4PDA15.512.07.811,100214181833
      5TXCB004AS3+TSTATS8V2B080M4PCA15.512.07.811,100214181837
      5TXCB004AS3+TSTATS8V2B080M4PCB15.512.07.811,100214181839
      5TXCB004AS3+TSTATS8V2B080M4PDA15.512.07.811,100214181841
      5TXCB004AS3+TSTATS8V2B080M4PDB15.512.07.811,100214181843
      5TXCB004AS3+TSTATS9V2B040U3PSB15.512.07.811,100214181873
      5TXCB004AS3+TSTATS9V2B040U3PSC15.512.07.811,100214181875
      5TXCB004AS3+TSTATS9V2B040U3VSA15.512.07.811,100214181877
      5TXCB004AS3+TSTATS9V2B040U3VSB15.512.07.811,100214181879
      5TXCB004AS3+TSTATS9V2B060U3VSA15.512.07.811,100214181881
      5TXCB004AS3+TSTATS9V2B060U3VSB15.512.07.811,300214181884
      5TXCB004AS3+TSTATS9V2B060U4PSB15.512.07.811,100214181886
      5TXCB004AS3+TSTATS9V2B060U4PSC15.512.07.811,100214181888
      5TXCB004AS3+TSTAT*UHMB060ACV315.512.07.811,000214181890
      5TXCB004AS3+TSTATS9V2B080U4PSB15.512.07.811,100214181892
      Yearly running cost in 10 large cities$676-$1,722

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

      Questions5
      What is the SEER2 rating of the Trane 5TWX5024A1?
      The Trane 5TWX5024A1 is rated at up to 16.5 SEER2 and 12.0 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 75 certified matchups SEER2 ranges from 15.2-16.5.
      Is the Trane 5TWX5024A1 good for cold climates?
      It is not cold-climate certified: none of its matchups meet the ENERGY STAR cold-climate criteria (a COP of at least 1.75 at 5°F among other limits). In places with frequent sub-zero nights, pick a cold-climate 2-ton model.
      How much does the Trane 5TWX5024A1 cost to run per year?
      At its rated efficiency it costs about $676-$1,722 a year in electricity in large U.S. cities, depending on climate and local rates - for example $822 in Phoenix and $1,429 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 Trane 5TWX5024A1?
      ENERGY STAR lists 75 certified combinations for this outdoor unit. The highest-rated ones use 5TEMCD06AV41+TDR+TSTAT, 5TEMCD07AV51+TDR+TSTAT, 5TEM6D04AV31+TDR+TSTAT.
      What refrigerant does the Trane 5TWX5024A1 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 $809/yrYou save $385/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 Trane 5TWX5024A1
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $809
      Current system, per year
      $1,194
      You save per year
      $385
      Payback
      23.4 years
      Net after 10 years
      -$5,147

      Cooling $508Heating $301Electricity used: 5,057 kWhSaved vs. a minimum-efficiency heat pump: $102

      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 June 3, 2026. How we use the data.