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      1.5-ton central heat pump · A5HP5

      RunTru A5HP5018A1

      Below average cooling and heating efficiency for a 1.5-ton central heat pump, but not rated for cold climates.

      Ranks #155 of 170 1.5 ton central heat pumps for cooling efficiency, and costs about $623 a year to run in a mixed climate like Atlanta.

      SEER2
      15.2 Cooling efficiency over a season
      Below average · beats 6%
      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
      9,300 BTU/h51% of its 47°F output
      Below average · beats 39%

      A good fit if…

      • You want a certified 1.5-ton central heat pump at a typical efficiency level.

      Think twice if…

      • You often see nights below 0°F - it is not cold-climate certified.
      • 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.
      • Comfort and noise matter - a single-stage compressor runs only full-on or off.

      Calculate my running cost

      Details

      Specifications1.5 ton, R-454B
      General
      BrandRunTru
      Also sold asAmeristar
      Outdoor unit modelA5HP5018A1
      SeriesA5HP5
      TypeCentral heat pump
      Nominal size1.5 ton
      CompressorVariable-speed units run longer at low powerSingle stage
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceFebruary 19, 2024
      Last certifiedApril 9, 2025
      Cooling
      SEER2Seasonal efficiency, higher is better15.2 (range 15.2)
      EER2Efficiency at 95°F outdoors11.7-12.0
      Cooling capacity18,000-19,200 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better7.8-8.1
      Capacity at 47°F17,200-18,600 BTU/h
      Capacity at 17°F11,200-12,200 BTU/h
      Capacity at 5°F8,600-9,300 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.90-2.00
      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 A5AHV003A1B3+TDR+TSTAT at the standard test temperatures, in BTU/h:

      Certified matchups8 indoor units

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

      Indoor unitFurnaceSEER2EER2HSPF2Heat @5°FAHRI ref.
      A5AHV003A1B3+TDR+TSTAT-15.212.08.19,200214296180
      A5AHV003A1B3+TDR+TSTAT-15.212.08.19,200214296181
      5TXCB004AS3+TSTATL9X1A050U3VSA15.211.77.88,600214296172
      5TXCB004AS3+TSTATL9X1A050U3VSA15.211.77.88,600214296173
      A5AHC002A1B3+TDR+TSTAT-15.212.07.89,000215611058
      A5AHC002A1B3+TDR+TSTAT-15.212.07.89,000215611059
      A5AHV002A1B3+TDR+TSTAT-15.212.07.89,300215611062
      A5AHV002A1B3+TDR+TSTAT-15.212.07.89,300215611063
      Yearly running cost in 10 large cities$586-$1,467

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

      Questions5
      What is the SEER2 rating of the RunTru A5HP5018A1?
      The RunTru A5HP5018A1 is rated at up to 15.2 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.
      Is the RunTru A5HP5018A1 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 1.5-ton model.
      How much does the RunTru A5HP5018A1 cost to run per year?
      At its rated efficiency it costs about $586-$1,467 a year in electricity in large U.S. cities, depending on climate and local rates - for example $708 in Phoenix and $1,215 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 RunTru A5HP5018A1?
      ENERGY STAR lists 8 certified combinations for this outdoor unit. The highest-rated ones use A5AHV003A1B3+TDR+TSTAT, 5TXCB004AS3+TSTAT, A5AHC002A1B3+TDR+TSTAT.
      What refrigerant does the RunTru A5HP5018A1 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 $696/yrYou save $276/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 RunTru A5HP5018A1
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $696
      Current system, per year
      $972
      You save per year
      $276
      Payback
      25.4 years
      Net after 10 years
      -$4,243

      Cooling $440Heating $256Electricity used: 4,349 kWhSaved vs. a minimum-efficiency heat pump: $48

      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 April 9, 2025. How we use the data.