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      5-ton packaged heat pump · Universal DC Inverter Packaged Unit

      MRCOOL MDPH18060D

      Very good cooling efficiency and average heating efficiency for a 5-ton packaged heat pump, and certified for cold climates.

      Ranks #6 of 29 5 ton packaged heat pumps for cooling efficiency, and costs about $1,748 a year to run in a mixed climate like Atlanta.

      SEER2
      18.0 Cooling efficiency over a season
      Very good · beats 86%
      HSPF2
      8.3 Heating efficiency over a season
      Average · beats 67%
      EER2
      11.2 Cooling efficiency on a 95°F day
      Below average · beats 27%
      Heat at 5°F
      51,000 BTU/h89% of its 47°F output
      Very good · beats 73%

      A good fit if…

      • You want low cooling bills - its SEER2 beats 86% of packaged heat pumps.
      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 51,000 BTU/h at 5°F.
      • You want steady temperatures and quiet running - the compressor varies its speed.

      Think twice if…

      • Nothing stands out - its ratings have no weak spot for its class.

      Calculate my running cost

      Details

      Specifications5 ton, R-32
      General
      BrandMRCOOL
      Also sold asGREE, AC Pro
      Outdoor unit modelMDPH18060D
      SeriesUniversal DC Inverter Packaged Unit
      TypePackaged heat pump
      Nominal size5 ton
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-32
      Connected (smart) capableNo
      On the market sinceDecember 8, 2025
      Last certifiedMarch 17, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better18.0 (range 18.0)
      EER2Efficiency at 95°F outdoors11.2
      Cooling capacity56,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better8.3
      Capacity at 47°F57,000 BTU/h
      Capacity at 17°F34,000 BTU/h
      Capacity at 5°F51,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.00
      ENERGY STAR cold climateYes
      Heating output as it gets colder89% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its best matchup 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.
      - · cold climate18.011.28.351,000217905217
      Same unit, other model numbers2

      These model numbers have exactly the same certified ratings and matchups as the MRCOOL MDPH18060D: 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-$4,256

      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 MDPH18060D?
      The MRCOOL MDPH18060D is rated at up to 18.0 SEER2 and 11.2 EER2 for cooling and up to 8.3 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
      Is the MRCOOL MDPH18060D good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 51,000 BTU/h at 5°F with a COP of 2.00, so it is still 2.0 times as efficient as electric resistance heat at that temperature.
      How much does the MRCOOL MDPH18060D cost to run per year?
      At its rated efficiency it costs about $1,467-$4,256 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,855 in Phoenix and $3,591 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
      Is the MRCOOL MDPH18060D the same as the GREE GK-H05TC/NHA-D(U)?
      Yes, as far as the certified ratings go. ENERGY STAR lists 3 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.
      What refrigerant does the MRCOOL MDPH18060D use?
      It uses 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 $1,864/yrYou save $1,040/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 MDPH18060D
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,864
      Current system, per year
      $2,904
      You save per year
      $1,040
      Payback
      20.2 years
      Net after 10 years
      -$10,604

      Cooling $1,095Heating $769Electricity used: 11,652 kWhSaved vs. a minimum-efficiency heat pump: $365

      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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      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of March 17, 2026. How we use the data.