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      1.5-ton central heat pump · MHP170 SERIES

      MRCOOL MHP17018A-**A

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

      Ranks #83 of 170 1.5 ton central heat pumps for cooling efficiency, and costs about $562 a year to run in a mixed climate like Atlanta.

      SEER2
      16.8 Cooling efficiency over a season
      Average · beats 45%
      HSPF2
      8.1 Heating efficiency over a season
      Below average · beats 20%
      EER2
      13.5 Cooling efficiency on a 95°F day
      Excellent · beats 95%
      Heat at 5°F
      8,500 BTU/h45% of its 47°F output
      Average · beats 67%

      A good fit if…

      • You want a choice of indoor units - 24 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.
      • You want the newest refrigerant - it uses R-410A, which is being phased down.
      • Comfort and noise matter - a single-stage compressor runs only full-on or off.

      Calculate my running cost

      Details

      Specifications1.5 ton, R-410A
      General
      BrandMRCOOL
      Outdoor unit modelMHP17018A-**A
      SeriesMHP170 SERIES
      TypeCentral heat pump
      Nominal size1.5 ton
      CompressorVariable-speed units run longer at low powerSingle stage
      RefrigerantR-410A
      Connected (smart) capableNo
      On the market sinceJanuary 5, 2022
      Last certifiedMay 27, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better16.8 (range 15.2-16.8)
      EER2Efficiency at 95°F outdoors12.5-13.5
      Cooling capacity18,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better7.8-8.1
      Capacity at 47°F17,000-17,900 BTU/h
      Capacity at 17°F10,400-11,200 BTU/h
      Capacity at 5°F7,700-8,500 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.92-2.14
      ENERGY STAR cold climateNo
      Heating output as it gets colder45% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with MCVP30ANPA+TDR+TXV at the standard test temperatures, in BTU/h:

      Certified matchups24 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.
      MCVP30ANPA+TDR+TXVMGM80SE045A3A16.813.57.87,700210326225
      MCVP24ANPA+TDR+TXVMGM80SE070B3A16.413.58.08,200210326210
      MCHP24ANPA*+TDR+TXVMGM80SE070B3A16.413.58.08,000211734359
      MCHP24ANPA*+TDR+TXVMGM80SE045A3A16.413.58.08,000211734339
      MCVP30ANPA+TDR+TXVMGM96SE070B3XA16.413.57.87,700210326229
      MCVP30BNPA+TDR+TXVMGM96SE070B3XA16.413.57.87,700210441040
      MCVP30BNPA+TDR+TXVMGM96SE045B3XA16.413.57.87,700210441039
      MCVP30ANPA+TDR+TXVMGM96SE045B3XA16.413.57.87,700210326227
      MCVP30ANPA+TDR+TXVMGM80SE070B3A16.413.57.87,700210326223
      MCHP30BNPA*+TDR+TXVMGM96SE045B3XA16.413.57.87,700211734809
      MCHP30BNPA*+TDR+TXVMGM96SE070B3XA16.413.57.87,700211734830
      MCVP24ANPA+TDR+TXVMGM80SE045A3A16.213.58.08,200210326212
      MAHM024ETA-16.013.08.18,500211174467
      MCHP24BNPA*+TDR+TXVMGM96SE045B3XA16.013.58.18,200211734601
      MCHP24BNPA*+TDR+TXVMGM96SE070B3XA16.013.58.18,200211734613
      MCVP24BNPA+TDR+TXVMGM96SE045B3XA16.013.58.08,200210441036
      MCVP24ANPA+TDR+TXVMGM96SE070B3XA16.013.58.08,200210326217
      MCVP24BNPA+TDR+TXVMGM96SE070B3XA16.013.58.08,200210441037
      MCVP24ANPA+TDR+TXVMGM96SE045B3XA16.013.58.08,200210326215
      MCHP30BNPA*+TDR+TXVMGM80SE090B4A15.613.07.88,000211734748
      MAHM024CTA-15.413.08.18,500211174374
      MAHM018CTA-15.213.08.08,500210324692
      MCVP30ANPA+TDR+TXVMGM80SE090B4A15.212.57.88,100210326231
      MCVP30BNPA+TDR+TXVMGM80SE090B4A15.212.57.88,100210441038
      Yearly running cost in 10 large cities$503-$1,342

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

      Questions5
      What is the SEER2 rating of the MRCOOL MHP17018A-**A?
      The MRCOOL MHP17018A-**A is rated at up to 16.8 SEER2 and 13.5 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 24 certified matchups SEER2 ranges from 15.2-16.8.
      Is the MRCOOL MHP17018A-**A 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 MRCOOL MHP17018A-**A cost to run per year?
      At its rated efficiency it costs about $503-$1,342 a year in electricity in large U.S. cities, depending on climate and local rates - for example $620 in Phoenix and $1,121 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 MRCOOL MHP17018A-**A?
      ENERGY STAR lists 24 certified combinations for this outdoor unit. The highest-rated ones use MCVP30ANPA+TDR+TXV, MCVP24ANPA+TDR+TXV, MCHP24ANPA*+TDR+TXV.
      What refrigerant does the MRCOOL MHP17018A-**A use?
      It uses R-410A. R-410A is being phased down under the EPA AIM Act, and new systems are moving to R-454B and R-32.

      Running cost and savings

      Pre-filled with this model. Pick your city and what you heat with today; everything else is optional.

      Heat pump $615/yrYou save $300/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 MRCOOL MHP17018A-**A
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $615
      Current system, per year
      $915
      You save per year
      $300
      Payback
      23.3 years
      Net after 10 years
      -$3,999

      Cooling $377Heating $238Electricity used: 3,844 kWhSaved vs. a minimum-efficiency heat pump: $85

      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 May 27, 2026. How we use the data.