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      9,000 BTU mini-split heat pump · C-Series

      AUX AFEB09HP230V1CO

      Average cooling efficiency and below average heating efficiency for a 9,000 BTU mini-split heat pump, and certified for cold climates.

      Ranks #237 of 395 9,000 BTU mini-splits for cooling efficiency, and costs about $252 a year to run in a mixed climate like Atlanta.

      SEER2
      23.0 Cooling efficiency over a season
      Average · beats 62%
      HSPF2
      9.5 Heating efficiency over a season
      Below average · beats 24%
      EER2
      13.0 Cooling efficiency on a 95°F day
      Average · beats 62%
      Heat at 5°F
      9,300 BTU/h93% of its 47°F output
      Average · beats 60%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 9,300 BTU/h at 5°F.
      • You want steady temperatures and quiet running - the compressor varies its speed.

      Think twice if…

      • You mainly need heat - its HSPF2 is below average for mini-splits.

      Calculate my running cost

      Details

      Specifications9,000 BTU, R-32
      General
      BrandAUX
      Outdoor unit modelAFEB09HP230V1CO
      SeriesC-Series
      TypeMini-split heat pump
      Nominal size9,000 BTU
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-32
      Connected (smart) capableNo
      On the market sinceApril 3, 2026
      Last certifiedJune 25, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better23.0 (range 23.0)
      EER2Efficiency at 95°F outdoors13.0
      Cooling capacity9,100 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better9.5
      Capacity at 47°F10,000 BTU/h
      Capacity at 17°F7,600 BTU/h
      Capacity at 5°F9,300 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.05
      ENERGY STAR cold climateYes
      Heating output as it gets colder93% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with AFEB09HP230V1CH 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.
      AFEB09HP230V1CH · cold climate23.013.09.59,300214290014
      Yearly running cost in 10 large cities$188-$633

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

      Questions5
      What is the SEER2 rating of the AUX AFEB09HP230V1CO?
      The AUX AFEB09HP230V1CO is rated at up to 23.0 SEER2 and 13.0 EER2 for cooling and up to 9.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
      Is the AUX AFEB09HP230V1CO good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 9,300 BTU/h at 5°F with a COP of 2.05, so it is still 2.1 times as efficient as electric resistance heat at that temperature.
      How much does the AUX AFEB09HP230V1CO cost to run per year?
      At its rated efficiency it costs about $188-$633 a year in electricity in large U.S. cities, depending on climate and local rates - for example $250 in Phoenix and $543 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 AUX AFEB09HP230V1CO?
      ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses AFEB09HP230V1CH.
      What refrigerant does the AUX AFEB09HP230V1CO 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 $257/yrYou save $227/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 AUX AFEB09HP230V1CO
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $257
      Current system, per year
      $484
      You save per year
      $227
      Payback
      15.4 years
      Net after 10 years
      -$1,232

      Cooling $139Heating $118Electricity used: 1,607 kWhSaved vs. a minimum-efficiency heat pump: $116

      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 June 25, 2026. How we use the data.