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      42,000 BTU mini-split heat pump · Floating Air Pro X

      Friedrich FPHFR48A3D

      Below average cooling efficiency and average heating efficiency for a 42,000 BTU mini-split heat pump, and certified for cold climates.

      Ranks #44 of 61 42,000 BTU mini-splits for cooling efficiency, and costs about $1,160 a year to run in a mixed climate like Atlanta.

      SEER2
      20.0 Cooling efficiency over a season
      Below average · beats 18%
      HSPF2
      10.0 Heating efficiency over a season
      Average · beats 43%
      EER2
      12.0 Cooling efficiency on a 95°F day
      Below average · beats 25%
      Heat at 5°F
      48,000 BTU/h100% of its 47°F output
      Average · beats 67%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 48,000 BTU/h at 5°F.
      • You want steady temperatures and quiet running - the compressor varies its speed.

      Think twice if…

      • Cooling cost matters most - its SEER2 is below average for mini-splits.

      Calculate my running cost

      Details

      Specifications42,000 BTU, R-454B
      General
      BrandFriedrich
      Also sold asRheem, Ruud
      Outdoor unit modelFPHFR48A3D
      SeriesFloating Air Pro X
      TypeMini-split heat pump
      Nominal size42,000 BTU
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceMarch 4, 2025
      Last certifiedApril 17, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better20.0 (range 19.0-20.0)
      EER2Efficiency at 95°F outdoors10.7-12.0
      Cooling capacity44,000-48,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better9.5-10.0
      Capacity at 47°F44,000-48,000 BTU/h
      Capacity at 17°F28,600-37,000 BTU/h
      Capacity at 5°F44,000-48,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.00-2.10
      ENERGY STAR cold climateYes
      Heating output as it gets colder100% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with FPHSC48A3D at the standard test temperatures, in BTU/h:

      Certified matchups9 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.
      FPHSC48A3D FRIEDRICH · cold climate20.012.09.544,000216699609
      FPHSC48A3D Rheem · cold climate20.012.09.544,000217107005
      FPHSC48A3D Ruud · cold climate20.012.09.544,000217107009
      FPHSD48A3D FRIEDRICH · cold climate19.510.79.544,000216699607
      FPHSD48A3D Rheem · cold climate19.510.79.544,000217107003
      FPHSD48A3D Ruud · cold climate19.510.79.544,000217107007
      FPHFA48A3D · cold climate19.011.710.048,000217508872
      FPHFA48A3D Rheem · cold climate19.011.710.048,000217508874
      FPHFA48A3D Ruud · cold climate19.011.710.048,000217508876
      Yearly running cost in 10 large cities$1,034-$2,776

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

      Questions5
      What is the SEER2 rating of the Friedrich FPHFR48A3D?
      The Friedrich FPHFR48A3D is rated at up to 20.0 SEER2 and 12.0 EER2 for cooling and up to 10.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 9 certified matchups SEER2 ranges from 19.0-20.0.
      Is the Friedrich FPHFR48A3D good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 48,000 BTU/h at 5°F with a COP of 2.10, so it is still 2.1 times as efficient as electric resistance heat at that temperature.
      How much does the Friedrich FPHFR48A3D cost to run per year?
      At its rated efficiency it costs about $1,034-$2,776 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,276 in Phoenix and $2,321 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 Friedrich FPHFR48A3D?
      ENERGY STAR lists 9 certified combinations for this outdoor unit. The highest-rated ones use FRIEDRICH FPHSC48A3D, Rheem FPHSC48A3D, Ruud FPHSC48A3D.
      What refrigerant does the Friedrich FPHFR48A3D 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 $1,267/yrYou save $1,002/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 Friedrich FPHFR48A3D
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,267
      Current system, per year
      $2,269
      You save per year
      $1,002
      Payback
      16.5 years
      Net after 10 years
      -$6,485

      Cooling $774Heating $493Electricity used: 7,920 kWhSaved vs. a minimum-efficiency heat pump: $473

      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 April 17, 2026. How we use the data.