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      2-ton central heat pump · 16 Single-Stage Heat Pump with WeatherGuard Top

      Trane 5TWX6024A1

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

      Ranks #239 of 331 2 ton central heat pumps for cooling efficiency, and costs about $727 a year to run in a mixed climate like Atlanta.

      SEER2
      17.0 Cooling efficiency over a season
      Average · beats 49%
      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
      11,500 BTU/h51% of its 47°F output
      Very good · beats 85%

      A good fit if…

      • You want a choice of indoor units - 93 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 model5TWX6024A1
      Series16 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 16, 2026
      Last certifiedJune 12, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better17.0 (range 15.2-17.0)
      EER2Efficiency at 95°F outdoors11.7-12.0
      Cooling capacity23,200-24,800 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better7.8-8.1
      Capacity at 47°F21,000-23,000 BTU/h
      Capacity at 17°F14,300-15,000 BTU/h
      Capacity at 5°F11,000-11,500 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.12-2.28
      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 matchups93 indoor units

      The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 93 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-17.012.08.011,000218109876
      5TEMCD07AV51+TDR+TSTAT-17.012.07.811,000218109877
      5PX*BD06AS3+TSTATS8X2A040M3PSC16.512.08.111,300218112345
      5PX*BD06AS3+TSTATS8X2A040M3PTC16.512.08.111,300218112344
      5PX*BD06AS3+TSTATS8X1B040M2PSC16.512.08.111,200218112342
      5PX*BD06AS3+TSTATS8X1B040M2PTC16.512.08.111,200218112341
      5PX*BD06AS3+TSTATS8X1A040M3PTC16.512.08.111,300218112339
      5PX*BD06AS3+TSTATS8X1A040M3PSC16.512.08.111,300218112338
      5TAMXD05AV41+TSTAT-16.512.08.011,200218109863
      5PX*C009AS3+TSTAT*UHMC100CCV416.512.08.011,200218109854
      5TXCC009AS3+TSTAT*UHMC100CCV416.512.08.011,200218159315
      5TXCC007AS3+TSTAT*UHMC100CCV416.012.08.111,300218109980
      5TXCB006AS3+TSTATS9V2B060U4VSB16.012.08.111,300218109972
      5TXCB006AS3+TSTATS9X1B060U4PSB16.012.08.111,500218109971
      5TXCB006AS3+TSTATS9X2B060U4PSB16.012.08.111,500218109955
      5TEMCD05AV41+TDR+TSTAT-16.012.08.111,100218109875
      5TEMCD04AV31+TDR+TSTAT-16.012.08.111,100218109874
      5TEM6D05AV41+TDR+TSTAT-16.012.08.111,200218109871
      5TXCB006AS3+TSTATS9V2B080U4VSB16.012.08.111,300218112367
      5TXCB006AS3+TSTATS9V2B060U3VSB16.012.08.111,300218112366
      5TXCB006AS3+TSTATS9X1B080U4PSB16.012.08.111,300218112365
      5TXCB006AS3+TSTATS9X2B080U4PSB16.012.08.111,300218112363
      5TXCB006AS3+TSTATS8X1A040M3PTC16.012.08.111,300218112362
      5TXCB006AS3+TSTATS8X2A040M3PTC16.012.08.111,300218112359
      5TXCB006AS3+TSTATS8X1B040M2PSC16.012.08.111,300218112358
      5TXCB006AS3+TSTATS8X2A040M3PSC16.012.08.111,300218112357
      5TXCB006AS3+TSTATS8X1B040M2PTC16.012.08.111,300218112356
      5TXCB006AS3+TSTATS8X1A040M3PSC16.012.08.111,300218112355
      5PX*B006AS3+TSTATS9X2B080U4PSB16.012.08.111,300218112305
      5PX*B006AS3+TSTATS9X1B080U4PSB16.012.08.111,300218112296
      5TEM6D04AV31+TDR+TSTAT-16.012.08.111,200218159305
      5TAMXD04AV31+TSTAT-16.012.08.011,200218109862
      5PX*CD07AS3+TSTAT*DHMC100CCV416.012.08.011,400218109856
      5PX*C007AS3+TSTAT*UHMC100CCV416.012.08.011,300218109853
      5PX*C005AS3+TSTAT*UHMC100CCV416.012.08.011,200218109851
      5PX*BD06AS3+TSTATS8V2B060M4PCB16.012.08.011,200218109850
      5PX*BD06AS3+TSTATS9X2B060D3PSB16.012.08.011,200218109849
      5PX*BD06AS3+TSTATS9X1B080D4PSB16.012.08.011,300218109847
      5PX*BD06AS3+TSTATS9X1B060D3PSB16.012.08.011,200218109846
      5PX*BD06AS3+TSTATS9V2B080D4VSB16.012.08.011,200218109844
      5PX*BD06AS3+TSTATS9V2B060D3VSB16.012.08.011,200218109843
      5PX*BD06AS3+TSTATS9X2B080D4PSB16.012.08.011,300218109836
      5PX*BD06AS3+TSTATS8V2B080M4PDB16.012.08.011,100218109829
      5PX*BD06AS3+TSTATS8V2B080M4PCB16.012.08.011,100218109828
      5PX*B006AS3+TSTATS9V2B040U3VSB16.012.08.011,300218109784
      5PX*B006AS3+TSTATS9V2B060U3VSB16.012.08.011,300218109783
      5PX*B006AS3+TSTATS9V2B060U4VSB16.012.08.011,300218109782
      5PX*B006AS3+TSTATS9X1B060U4PSB16.012.08.011,500218109780
      5PX*B006AS3+TSTATS9X2B060U4PSB16.012.08.011,500218109779
      5PX*B006AS3+TSTATS8V2B080M4PDB16.012.08.011,300218109778
      5PX*B006AS3+TSTAT*UHMB060CCV316.012.08.011,200218109771
      5PX*B006AS3+TSTATS8V2B080M4PCB16.012.08.011,300218109770
      5PX*B006AS3+TSTATS8V2B060M4PDB16.012.08.011,400218109769
      5PX*B006AS3+TSTATS8V2B060M4PCB16.012.08.011,400218109768
      5PX*B006AS3+TSTATL8V1B080U4VSB16.012.08.011,500218109764
      5PX*BD06AS3+TSTATS8V2B060M4PDB16.012.08.011,200218159303
      5PX*BD06AS3+TSTAT*DHMB060CCV316.012.08.011,400218159302
      5PX*BD06AS3+TSTATS9V2B040D3VSB16.012.08.011,100218159300
      5TXCB006AS3+TSTATS8X2B080M4PSC16.012.07.811,400218109974
      5TXCB006AS3+TSTAT*UHMB060CCV316.012.07.811,200218109964
      Yearly running cost in 10 large cities$663-$1,727

      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 5TWX6024A1?
      The Trane 5TWX6024A1 is rated at up to 17.0 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 93 certified matchups SEER2 ranges from 15.2-17.0.
      Is the Trane 5TWX6024A1 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 5TWX6024A1 cost to run per year?
      At its rated efficiency it costs about $663-$1,727 a year in electricity in large U.S. cities, depending on climate and local rates - for example $811 in Phoenix and $1,438 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 5TWX6024A1?
      ENERGY STAR lists 93 certified combinations for this outdoor unit. The highest-rated ones use 5TEMCD06AV41+TDR+TSTAT, 5TEMCD07AV51+TDR+TSTAT, 5PX*BD06AS3+TSTAT.
      What refrigerant does the Trane 5TWX6024A1 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 $801/yrYou save $404/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 5TWX6024A1
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $801
      Current system, per year
      $1,205
      You save per year
      $404
      Payback
      22.3 years
      Net after 10 years
      -$4,964

      Cooling $497Heating $304Electricity used: 5,007 kWhSaved vs. a minimum-efficiency heat pump: $118

      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 331 2 ton central heat pumps, ranked

      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of June 12, 2026. How we use the data.