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      3-ton central heat pump · MAU Series

      Midea MO1SE-H36B-2A

      Average cooling efficiency and excellent heating efficiency for a 3-ton central heat pump, and certified for cold climates.

      Ranks #93 of 302 3 ton central heat pumps for cooling efficiency, and costs about $971 a year to run in a mixed climate like Atlanta.

      SEER2
      18.0 Cooling efficiency over a season
      Average · beats 66%
      HSPF2
      10.3 Heating efficiency over a season
      Excellent · beats 92%
      EER2
      12.0 Cooling efficiency on a 95°F day
      Average · beats 64%
      Heat at 5°F
      39,000 BTU/h101% of its 47°F output
      Below average · beats 20%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 39,000 BTU/h at 5°F.
      • It will heat most of the year - its HSPF2 beats 92% of central heat pumps.
      • You want steady temperatures and quiet running - the compressor varies its speed.
      • You want a choice of indoor units - 120 certified pairings.

      Think twice if…

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

      Calculate my running cost

      Details

      Specifications3 ton, R-454B
      General
      BrandMidea
      Outdoor unit modelMO1SE-H36B-2A
      SeriesMAU Series
      TypeCentral heat pump
      Nominal size3 ton
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceSeptember 5, 2024
      Last certifiedSeptember 16, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better18.0 (range 15.2-18.0)
      EER2Efficiency at 95°F outdoors10.1-12.0
      Cooling capacity34,000-36,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better8.4-10.3
      Capacity at 47°F35,000-38,000 BTU/h
      Capacity at 17°F27,000-33,000 BTU/h
      Capacity at 5°F31,000-39,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.75-1.90
      ENERGY STAR cold climateYes
      Heating output as it gets colder101% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with MAUSE-H36B-2A at the standard test temperatures, in BTU/h:

      Certified matchups120 indoor units

      The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 120 are shown. Ask your installer for the AHRI reference number of the exact system you are quoted.

      Indoor unitFurnaceSEER2EER2HSPF2Heat @5°FAHRI ref.
      MAUSE-H36B-2A · cold climate-18.012.010.037,400215471343
      MAUHE-H36B-2A · cold climate-17.411.710.339,000215471334
      MAWHE-H36B-2A · cold climate-16.811.29.634,600216607264
      MAAHE-H36B-CA-UC · cold climateRL18100C20MPS116.811.49.634,000218156260
      MAAHE-H36B-CA · cold climateRL18100C20MPS116.811.49.634,000218155502
      MAAHE-H36B-CA-UC · cold climateRL18100C16MPS116.711.49.534,000218156259
      MAAHE-H36B-CA-UC · cold climateRL18080C16MPS116.710.99.534,000218156258
      MAAHE-H36B-CA · cold climateRL18100C16MPS116.711.49.534,000218155501
      MAAHE-H36B-CA · cold climateRL18080C16MPS116.710.99.534,000218155500
      MAAHE-H36B-BA-UC · cold climateRL18080B12MPS116.410.69.434,000218156257
      MAAHE-H36B-BA · cold climateRL18080B12MPS116.410.69.434,000218155499
      MAAHE-H36B-BA · cold climateMGV96U060B3C16.310.89.233,000217608530
      MAAHE-H36B-CA-UC · cold climateRG19080C16MPS116.310.79.234,000218156203
      MAAHE-H36B-BA-UC · cold climateMGV96U060B3C16.310.89.233,000218155879
      MAAHE-H36B-CA · cold climateRG19080C16MPS116.310.79.234,000218155445
      MAAHE-H36B-BA-UC · cold climateBZ33-96E2U060B316.310.89.233,000218396927
      MAAHE-H36B-BA · cold climateBZ33-96E2U060B316.310.89.233,000218396900
      MAAHE-H36B-BA-UC · cold climateW962V060BU3SAA16.310.89.233,000218466440
      MAAHE-H36B-BA · cold climateW962V060BU3SAA16.310.89.233,000218466359
      MAAHE-H36B-CA-UC · cold climateS9V2C100U5VS***16.211.09.333,000218156054
      MAAHE-H36B-CA-UC · cold climateS9V2C100D5VS***16.211.09.333,000218156053
      MAAHE-H36B-CA · cold climateS9V2C100U5VS***16.211.09.333,000218155296
      MAAHE-H36B-CA · cold climateS9V2C100D5VS***16.211.09.333,000218155295
      MAAHE-H36B-CA-UC · cold climateML296UH110XV60C*16.111.09.533,000218156482
      MAAHE-H36B-CA · cold climateML296UH110XV60C*16.111.09.533,000218155724
      MAAHE-H36B-CA-UC · cold climateS9V2C080U5VS***16.010.99.433,000218156052
      MAAHE-H36B-CA · cold climateS9V2C080U5VS***16.010.99.433,000218155294
      MAAHE-H36B-CA · cold climateMGV96U080C4C16.011.09.333,000217608533
      MAAHE-H36B-CA-UC · cold climateMGV96U080C4C16.011.09.333,000218155881
      MAAHE-H36B-CA-UC · cold climateBZ33-96E2U080C416.011.09.333,000218396925
      MAAHE-H36B-CA · cold climateBZ33-96E2U080C416.011.09.333,000218396898
      MAAHE-H36B-CA-UC · cold climateW962V080CU4SAA16.011.09.333,000218466437
      MAAHE-H36B-CA · cold climateW962V080CU4SAA16.011.09.333,000218466356
      MAAHE-H36B-BA · cold climateMGV96U080B3C16.010.79.133,000217608531
      MAAHE-H36B-BA-UC · cold climateMGV96U080B3C16.010.79.133,000218155880
      MAAHE-H36B-BA-UC · cold climateBZ33-96E2U080B316.010.79.133,000218396926
      MAAHE-H36B-BA · cold climateBZ33-96E2U080B316.010.79.133,000218396899
      MAAHE-H36B-BA-UC · cold climateW962V080BU3SAA16.010.79.133,000218466438
      MAAHE-H36B-BA · cold climateW962V080BU3SAA16.010.79.133,000218466357
      MAAHE-H36B-CA-UC · cold climateRG19100C20MPS115.911.19.234,000218156206
      MAAHE-H36B-CA · cold climateRG19100C20MPS115.911.19.234,000218155448
      MAAHE-H36B-AA-UC · cold climateRL18040A12MPS115.910.28.532,000218156255
      MAAHE-H36B-AA · cold climateRL18040A12MPS115.910.28.532,000218155497
      MAAHE-H36B-BA · cold climate-15.810.79.436,000216623524
      MAAHE-H36B-CA · cold climate-15.810.79.436,000216623526
      MAAHE-H36B-BA-UC · cold climate-15.810.79.436,000217497649
      MAAHE-H36B-CA-UC · cold climate-15.810.79.436,000217497651
      MAAHE-H36B-CA-UC · cold climateRG19080C20MPS115.810.79.434,000218156204
      MAAHE-H36B-CA · cold climateRG19080C20MPS115.810.79.434,000218155446
      MAAHE-H36B-CA-UC · cold climateML196UH090XE36C*15.810.79.233,000218156477
      MAAHE-H36B-CA · cold climateML196UH090XE36C*15.810.79.233,000218155719
      MAAHE-H36B-CA-UC · cold climateS9X2C080U5PSB**15.610.69.333,000218156147
      MAAHE-H36B-CA-UC · cold climateS9X1C080U5PSB**15.610.69.333,000218156061
      MAAHE-H36B-CA · cold climateS9X2C080U5PSB**15.610.69.333,000218155389
      MAAHE-H36B-CA · cold climateS9X1C080U5PSB**15.610.69.333,000218155303
      MAAHE-H36B-CA-UC · cold climateML193UH090XE36C*15.610.79.233,000218156473
      MAAHE-H36B-CA · cold climateML193UH090XE36C*15.610.79.233,000218155715
      MAAHE-H36B-BA · cold climateS9V2B080U4VS***15.510.49.233,000217608510
      MAAHE-H36B-BA-UC · cold climateS9V2B080U4VS***15.510.49.233,000218155855
      MAAHE-H36B-CA-UC · cold climateML296UH090XV48C*15.510.79.133,000218156573
      Yearly running cost in 10 large cities$923-$2,266

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

      Questions5
      What is the SEER2 rating of the Midea MO1SE-H36B-2A?
      The Midea MO1SE-H36B-2A is rated at up to 18.0 SEER2 and 12.0 EER2 for cooling and up to 10.3 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 120 certified matchups SEER2 ranges from 15.2-18.0.
      Is the Midea MO1SE-H36B-2A good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 39,000 BTU/h at 5°F with a COP of 1.90, so it is still 1.9 times as efficient as electric resistance heat at that temperature.
      How much does the Midea MO1SE-H36B-2A cost to run per year?
      At its rated efficiency it costs about $923-$2,266 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,121 in Phoenix and $1,868 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 Midea MO1SE-H36B-2A?
      ENERGY STAR lists 120 certified combinations for this outdoor unit. The highest-rated ones use MAUSE-H36B-2A, MAUHE-H36B-2A, MAWHE-H36B-2A.
      What refrigerant does the Midea MO1SE-H36B-2A 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 $1,095/yrYou save $761/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 Midea MO1SE-H36B-2A
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,095
      Current system, per year
      $1,856
      You save per year
      $761
      Payback
      17.7 years
      Net after 10 years
      -$5,892

      Cooling $704Heating $391Electricity used: 6,847 kWhSaved vs. a minimum-efficiency heat pump: $328

      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 September 16, 2026. How we use the data.