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      12,000 BTU mini-split heat pump · airCore700

      York YPAS12BUFASDQ1

      Below average cooling efficiency and average heating efficiency for a 12,000 BTU mini-split heat pump, and certified for cold climates.

      Ranks #391 of 394 12,000 BTU mini-splits for cooling efficiency, and costs about $370 a year to run in a mixed climate like Atlanta.

      SEER2
      17.0 Cooling efficiency over a season
      Below average · beats 2%
      HSPF2
      10.0 Heating efficiency over a season
      Average · beats 43%
      EER2
      13.5 Cooling efficiency on a 95°F day
      Very good · beats 74%
      Heat at 5°F
      10,600 BTU/h76% of its 47°F output
      Very good · beats 78%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 10,600 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

      Specifications12,000 BTU, R-32
      General
      BrandYork
      Also sold asHitachi
      Outdoor unit modelYPAS12BUFASDQ1
      SeriesairCore700
      TypeMini-split heat pump
      Nominal size12,000 BTU
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-32
      Connected (smart) capableNo
      On the market sinceAugust 15, 2026
      Last certifiedAugust 11, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better17.0 (range 16.0-17.0)
      EER2Efficiency at 95°F outdoors12.5-15.0
      Cooling capacity12,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better9.2-10.0
      Capacity at 47°F14,000 BTU/h
      Capacity at 17°F10,600-11,800 BTU/h
      Capacity at 5°F9,800-10,600 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.10-2.20
      ENERGY STAR cold climateYes
      Heating output as it gets colder76% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with YPPFCB12UFA1DQ at the standard test temperatures, in BTU/h:

      Certified matchups3 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.
      YPPFCB12UFA1DQ YORK · cold climate17.013.510.010,600218694261
      YPPIMB12UFA1DQ YORK · cold climate16.212.59.210,200218694262
      YPPKB12UFA1DQ YORK16.015.09.59,800218696693
      Same unit, other model numbers1

      These model numbers have exactly the same certified ratings and matchups as the York YPAS12BUFASDQ1: 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$332-$885

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

      Questions6
      What is the SEER2 rating of the York YPAS12BUFASDQ1?
      The York YPAS12BUFASDQ1 is rated at up to 17.0 SEER2 and 13.5 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 3 certified matchups SEER2 ranges from 16.0-17.0.
      Is the York YPAS12BUFASDQ1 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 2.20, so it is still 2.2 times as efficient as electric resistance heat at that temperature.
      How much does the York YPAS12BUFASDQ1 cost to run per year?
      At its rated efficiency it costs about $332-$885 a year in electricity in large U.S. cities, depending on climate and local rates - for example $409 in Phoenix and $739 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
      Is the York YPAS12BUFASDQ1 the same as the Hitachi PAS-12BUFASDQ1?
      Yes, as far as the certified ratings go. ENERGY STAR lists both 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 York YPAS12BUFASDQ1?
      ENERGY STAR lists 3 certified combinations for this outdoor unit. The highest-rated ones use YORK YPPFCB12UFA1DQ, YORK YPPIMB12UFA1DQ, YORK YPPKB12UFA1DQ.
      What refrigerant does the York YPAS12BUFASDQ1 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 $405/yrYou save $246/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 York YPAS12BUFASDQ1
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $405
      Current system, per year
      $651
      You save per year
      $246
      Payback
      18.3 years
      Net after 10 years
      -$2,038

      Cooling $248Heating $157Electricity used: 2,533 kWhSaved vs. a minimum-efficiency heat pump: $99

      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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      See all 394 12,000 BTU mini-splits, ranked

      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of August 11, 2026. How we use the data.