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      9,000 BTU mini-split heat pump · Hi MULTI Xtreme

      ACIQ UB1MSHQCO09

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

      Ranks #381 of 395 9,000 BTU mini-splits for cooling efficiency, and costs about $261 a year to run in a mixed climate like Atlanta.

      SEER2
      18.5 Cooling efficiency over a season
      Below average · beats 6%
      HSPF2
      9.0 Heating efficiency over a season
      Below average · beats 10%
      EER2
      12.8 Cooling efficiency on a 95°F day
      Average · beats 56%
      Heat at 5°F
      6,300 BTU/h70% of its 47°F output
      Below average · beats 9%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 6,300 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.
      • You mainly need heat - its HSPF2 is below average for mini-splits.
      • You want the newest refrigerant - it uses R-410A, which is being phased down.

      Calculate my running cost

      Details

      Specifications9,000 BTU, R-410A
      General
      BrandACIQ
      Also sold asBuck Cool, PerfectAire, ProAire
      Outdoor unit modelUB1MSHQCO09
      SeriesHi MULTI Xtreme
      TypeMini-split heat pump
      Nominal size9,000 BTU
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-410A
      Connected (smart) capableNo
      On the market sinceMay 20, 2022
      Last certifiedJune 9, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better18.5 (range 18.5)
      EER2Efficiency at 95°F outdoors12.8
      Cooling capacity9,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better9.0
      Capacity at 47°F9,000 BTU/h
      Capacity at 17°F5,000 BTU/h
      Capacity at 5°F6,300 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.80
      ENERGY STAR cold climateYes
      Heating output as it gets colder70% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with UB1MSHQCW09 at the standard test temperatures, in BTU/h:

      Certified matchups4 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.
      UB1MSHQCW09 ACiQ · cold climate18.512.89.06,300208287562
      UB1MSHQCW09 Buck Cool · cold climate18.512.89.06,300208287570
      UB1MSHQCW09 Perfect Aire · cold climate18.512.89.06,300208287580
      UB1MSHQCW09 ProAire · cold climate18.512.89.06,300208287587
      Yearly running cost in 10 large cities$229-$628

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

      Questions5
      What is the SEER2 rating of the ACIQ UB1MSHQCO09?
      The ACIQ UB1MSHQCO09 is rated at up to 18.5 SEER2 and 12.8 EER2 for cooling and up to 9.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
      Is the ACIQ UB1MSHQCO09 good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 6,300 BTU/h at 5°F with a COP of 1.80, so it is still 1.8 times as efficient as electric resistance heat at that temperature.
      How much does the ACIQ UB1MSHQCO09 cost to run per year?
      At its rated efficiency it costs about $229-$628 a year in electricity in large U.S. cities, depending on climate and local rates - for example $284 in Phoenix and $526 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 ACIQ UB1MSHQCO09?
      ENERGY STAR lists 4 certified combinations for this outdoor unit. The highest-rated ones use ACiQ UB1MSHQCW09, Buck Cool UB1MSHQCW09, Perfect Aire UB1MSHQCW09.
      What refrigerant does the ACIQ UB1MSHQCO09 use?
      It uses R-410A. R-410A is being phased down under the EPA AIM Act, and new systems are moving to R-454B and 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 $283/yrYou save $181/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 ACIQ UB1MSHQCO09
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $283
      Current system, per year
      $464
      You save per year
      $181
      Payback
      19.4 years
      Net after 10 years
      -$1,692

      Cooling $171Heating $112Electricity used: 1,770 kWhSaved vs. a minimum-efficiency heat pump: $73

      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 9, 2026. How we use the data.