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      9,000 BTU mini-split heat pump · Pular

      TOSOT TW09HXP2A1AO

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

      Ranks #92 of 395 9,000 BTU mini-splits for cooling efficiency, and costs about $232 a year to run in a mixed climate like Atlanta.

      SEER2
      27.0 Cooling efficiency over a season
      Excellent · beats 94%
      HSPF2
      10.0 Heating efficiency over a season
      Average · beats 43%
      EER2
      14.6 Cooling efficiency on a 95°F day
      Very good · beats 88%
      Heat at 5°F
      9,900 BTU/h99% of its 47°F output
      Below average · beats 21%

      A good fit if…

      • You want low cooling bills - its SEER2 beats 94% of mini-splits.
      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 9,900 BTU/h at 5°F.
      • You want steady temperatures and quiet running - the compressor varies its speed.

      Think twice if…

      • 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
      BrandTOSOT
      Also sold asGREE, Kinghome, BOREAL
      Outdoor unit modelTW09HXP2A1AO
      SeriesPular
      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 sinceJanuary 14, 2023
      Last certifiedFebruary 17, 2025
      Cooling
      SEER2Seasonal efficiency, higher is better27.0 (range 27.0)
      EER2Efficiency at 95°F outdoors14.6
      Cooling capacity9,100 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better10.0
      Capacity at 47°F10,000 BTU/h
      Capacity at 17°F8,400 BTU/h
      Capacity at 5°F9,900 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.87
      ENERGY STAR cold climateYes
      Heating output as it gets colder99% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with TW09HXP2A1AI 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.
      TW09HXP2A1AI · cold climate27.014.610.09,900211177518
      Same unit, other model numbers4

      These model numbers have exactly the same certified ratings and matchups as the TOSOT TW09HXP2A1AO: the same equipment under another brand, or a variant code for voltage, colour or market. Everything on this page applies to them.

      Yearly running cost in 10 large cities$161-$592

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

      Questions6
      What is the SEER2 rating of the TOSOT TW09HXP2A1AO?
      The TOSOT TW09HXP2A1AO is rated at up to 27.0 SEER2 and 14.6 EER2 for cooling and up to 10.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
      Is the TOSOT TW09HXP2A1AO good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 9,900 BTU/h at 5°F with a COP of 1.87, so it is still 1.9 times as efficient as electric resistance heat at that temperature.
      How much does the TOSOT TW09HXP2A1AO cost to run per year?
      At its rated efficiency it costs about $161-$592 a year in electricity in large U.S. cities, depending on climate and local rates - for example $221 in Phoenix and $512 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
      Is the TOSOT TW09HXP2A1AO the same as the TOSOT TWH09AG25A2AO?
      Yes, as far as the certified ratings go. ENERGY STAR lists 5 model numbers with identical efficiency, capacity and matchups, which means the same outdoor unit sold under a different brand or with a minor variant code (voltage, colour or region). The full list is on this page.
      Which indoor units work with the TOSOT TW09HXP2A1AO?
      ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses TW09HXP2A1AI.
      What refrigerant does the TOSOT TW09HXP2A1AO 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 $231/yrYou save $253/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 TOSOT TW09HXP2A1AO
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $231
      Current system, per year
      $484
      You save per year
      $253
      Payback
      13.8 years
      Net after 10 years
      -$967

      Cooling $119Heating $112Electricity used: 1,441 kWhSaved vs. a minimum-efficiency heat pump: $143

      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 February 17, 2025. How we use the data.