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

      KEEN Home KEENUMHP09AA

      Very good cooling efficiency and excellent heating efficiency for a 9,000 BTU mini-split heat pump, and certified for cold climates.

      Ranks #196 of 395 9,000 BTU mini-splits for cooling efficiency, and costs about $223 a year to run in a mixed climate like Atlanta.

      SEER2
      24.0 Cooling efficiency over a season
      Very good · beats 75%
      HSPF2
      12.1 Heating efficiency over a season
      Excellent · beats 91%
      EER2
      14.6 Cooling efficiency on a 95°F day
      Very good · beats 88%
      Heat at 5°F
      10,600 BTU/h97% of its 47°F output
      Below average · beats 17%

      A good fit if…

      • You want low cooling bills - its SEER2 beats 75% of mini-splits.
      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 10,600 BTU/h at 5°F.
      • It will heat most of the year - its HSPF2 beats 91% of mini-splits.
      • 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

      Specifications9,000 BTU, R-454B
      General
      BrandKEEN Home
      Outdoor unit modelKEENUMHP09AA
      SeriesKEEN Series
      TypeMini-split heat pump
      Nominal size9,000 BTU
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceJuly 4, 2025
      Last certifiedMarch 24, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better24.0 (range 24.0)
      EER2Efficiency at 95°F outdoors14.6
      Cooling capacity9,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better12.1
      Capacity at 47°F10,900 BTU/h
      Capacity at 17°F9,000 BTU/h
      Capacity at 5°F10,600 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.83
      ENERGY STAR cold climateYes
      Heating output as it gets colder97% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with KEENOWAH09AA 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.
      KEENOWAH09AA · cold climate24.014.612.110,600217596899
      Yearly running cost in 10 large cities$177-$550

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

      Questions5
      What is the SEER2 rating of the KEEN Home KEENUMHP09AA?
      The KEEN Home KEENUMHP09AA is rated at up to 24.0 SEER2 and 14.6 EER2 for cooling and up to 12.1 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
      Is the KEEN Home KEENUMHP09AA good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 10,600 BTU/h at 5°F with a COP of 1.83, so it is still 1.8 times as efficient as electric resistance heat at that temperature.
      How much does the KEEN Home KEENUMHP09AA cost to run per year?
      At its rated efficiency it costs about $177-$550 a year in electricity in large U.S. cities, depending on climate and local rates - for example $229 in Phoenix and $468 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 KEEN Home KEENUMHP09AA?
      ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses KEENOWAH09AA.
      What refrigerant does the KEEN Home KEENUMHP09AA 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 $233/yrYou save $262/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 KEEN Home KEENUMHP09AA
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $233
      Current system, per year
      $495
      You save per year
      $262
      Payback
      13.3 years
      Net after 10 years
      -$877

      Cooling $132Heating $101Electricity used: 1,456 kWhSaved vs. a minimum-efficiency heat pump: $151

      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 9,000 BTU models

      See all 395 9,000 BTU mini-splits, ranked

      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of March 24, 2026. How we use the data.