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      3-ton central heat pump · LX SERIES

      York YH2F36TB21

      Below average cooling and heating efficiency for a 3-ton central heat pump, and certified for cold climates.

      Ranks #237 of 302 3 ton central heat pumps for cooling efficiency, and costs about $1,131 a year to run in a mixed climate like Atlanta.

      SEER2
      16.0 Cooling efficiency over a season
      Below average · beats 26%
      HSPF2
      8.1 Heating efficiency over a season
      Below average · beats 20%
      EER2
      11.7 Cooling efficiency on a 95°F day
      Average · beats 43%
      Heat at 5°F
      20,000 BTU/h54% of its 47°F output
      Excellent · beats 97%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 20,000 BTU/h at 5°F.
      • You want a choice of indoor units - 225 certified pairings.

      Think twice if…

      • Cooling cost matters most - its SEER2 is below average for central heat pumps.
      • You mainly need heat - its HSPF2 is below average for central heat pumps.
      • You want the newest refrigerant - it uses R-410A, which is being phased down.

      Calculate my running cost

      Details

      Specifications3 ton, R-410A
      General
      BrandYork
      Outdoor unit modelYH2F36TB21
      SeriesLX SERIES
      TypeCentral heat pump
      Nominal size3 ton
      CompressorVariable-speed units run longer at low powerTwo-stage
      RefrigerantR-410A
      Connected (smart) capableNo
      On the market sinceMay 18, 2023
      Last certifiedJuly 14, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better16.0 (range 15.2-16.0)
      EER2Efficiency at 95°F outdoors11.7-12.0
      Cooling capacity33,400-36,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better7.8-8.1
      Capacity at 47°F32,600-34,800 BTU/h
      Capacity at 17°F21,400-23,800 BTU/h
      Capacity at 5°F16,500-20,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.96-2.44
      ENERGY STAR cold climateYes
      Heating output as it gets colder54% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with XAHC36DBCN1 at the standard test temperatures, in BTU/h:

      Certified matchups225 indoor units

      The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 225 are shown. Ask your installer for the AHRI reference number of the exact system you are quoted.

      Indoor unitFurnaceSEER2EER2HSPF2Heat @5°FAHRI ref.
      XAHC36DBCN1Y81E080C20LMPS116.011.78.118,300212476092
      XAHC36DBCN1Y81E120C16SMPS116.011.78.118,500212474992
      XAHC36DBCN1Y81E120C16LMPS116.011.78.118,500212474994
      XAHC36DBCN1Y81E080C16LMPS116.011.78.118,300212475189
      XAHC36DBCN1Y81E080C16SMPS116.011.78.118,300212475187
      XAHC36DBCN1Y81E080C20SMPS116.011.78.118,300212476090
      XAHD48FBCN1+JMVT20DC2N1-16.012.08.117,200210339675
      XAHC36DBCN1+JMVT17CC2N1-16.011.78.117,400210340717
      XAHD48FBCN1Y82E080C16LMPS116.012.08.118,000212593839
      XAHC36DBCN1Y82E100C16LMPS116.011.78.118,400212593860
      XAHC36DBCN1Y82E100C20LMPS116.011.78.118,300212593719
      XAHC36DBCN1Y82E080C16LMPS116.011.78.118,600212593780
      XAHC48FBCN1Y81E100B12SMPS116.011.77.818,200212475704
      XAHD48FBCN1Y81E120C16LMPS116.012.07.817,700212475910
      XAHD48FBCN1Y81E120C16SMPS116.012.07.817,700212475908
      XAHD48FBCN1Y81E120C20SMPS116.012.07.818,000212475463
      XAHD48FBCN1Y81E120C20LMPS116.012.07.818,000212475465
      XAHD48FBCN1Y81E100C16LMPS116.012.07.818,100212475473
      XAHC48FBCN1Y81E080B12LMPS116.012.07.818,100212475481
      XAHD48FBCN1Y81E100C16SMPS116.012.07.818,100212475471
      XAHC48FBCN1Y81E080B12SMPS116.012.07.818,100212475479
      XAHC48FBCN1Y81E100C16LMPS116.012.07.818,100212476098
      XAHC48FBCN1Y81E120C16LMPS116.012.07.817,700212475204
      XAHC48FBCN1Y81E120C16SMPS116.012.07.817,700212475202
      XAHC48FBCN1Y81E100B12LMPS116.011.77.818,200212475706
      XAHC48FBCN1Y81E100C16SMPS116.012.07.818,100212476097
      XAHC48FBCN1TM8V120C20MP1216.011.77.817,700210338343
      XAHC48FBCN1TM8V100C20MP1216.011.77.817,700210338344
      XAHD48FBCN1TM8Y080C16MP1116.012.07.817,400210340257
      XAHC48FBCN1+JMET12CS2N1-16.012.07.817,000210340284
      XAHD48FBCN1TM9Y120D20MP1116.012.07.817,400210338976
      XAHC48FBCN1TM8Y100C16MP1116.012.07.817,400210339640
      XAHC48FBCN1TM8Y080C16MP1116.012.07.817,700210339641
      XAHC48FBCN1+JMVT17CC2N1-16.012.07.817,000210339677
      XAHD48FBCN1TL8E100C20UH1116.012.07.817,400210339673
      XAHC48FBCN1+JMET16CS2N1-16.012.07.817,300210339682
      XAHC48FBCN1TM8Y120C20MP1116.012.07.817,500210341802
      XAHC48FBCN1TM8Y100C20MP1116.012.07.817,500210341803
      XAHD48FBCN1TM8Y100C16MP1116.012.07.817,400210341808
      XAHC48FBCN1TL8E100C20UH1116.012.07.817,400210341846
      XAHC48FBCN1TL9E080C16UH1116.011.77.817,800210341844
      XAHC48FBCN1TL8E080C16UH1116.011.77.817,600210341848
      XAHC48FBCN1+JMVT16CC2N1-16.012.07.817,000210341853
      XAHD48FBCN1TM8Y120C20MP1116.012.07.817,500210341006
      XAHD48FBCN1TM8Y100C20MP1116.012.07.817,500210341007
      XAHC48FBCN1Y82E120C20LMPS116.012.07.818,000212593782
      XAHC48FBCN1Y82E080C16LMPS116.012.07.817,900212593787
      XAHD48FBCN1Y82E100C16LMPS116.012.07.818,000212593812
      XAHD48FBCN1Y82E120C20LMPS116.012.07.818,000212593835
      XAHC48FBCN1Y82E100C20LMPS116.012.07.817,900212593865
      XAHC48FBCN1Y82E100C16LMPS116.012.07.818,000212593726
      XAHD48FBCN1Y82E100C20LMPS116.012.07.817,900212593756
      XAFC36DBCN1Y82E100C20LMPS116.011.77.818,400212593752
      XAHC48FBCN1Y82E080B12LMPS116.012.07.818,100212593760
      XAHC36DBCN1Y82E120C20LMPS116.011.77.818,400212593778
      XAFD48FBCN1Y81E100C16LMPS115.211.78.118,200212475918
      XAFD48FBCN1Y81E100C16SMPS115.211.78.118,200212475916
      XAFD48FBCN1Y81E120C16SMPS115.211.78.118,100212475696
      XAFC48FXXN1+TXVY81E120C16SMPS115.211.78.118,100212475012
      XAFC48FBCN1Y81E120C16SMPS115.211.78.118,100212475016
      Yearly running cost in 10 large cities$1,033-$2,686

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

      Questions5
      What is the SEER2 rating of the York YH2F36TB21?
      The York YH2F36TB21 is rated at up to 16.0 SEER2 and 11.7 EER2 for cooling and up to 8.1 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 225 certified matchups SEER2 ranges from 15.2-16.0.
      Is the York YH2F36TB21 good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 20,000 BTU/h at 5°F with a COP of 2.44, so it is still 2.4 times as efficient as electric resistance heat at that temperature.
      How much does the York YH2F36TB21 cost to run per year?
      At its rated efficiency it costs about $1,033-$2,686 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,263 in Phoenix and $2,236 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 York YH2F36TB21?
      ENERGY STAR lists 225 certified combinations for this outdoor unit. The highest-rated ones use XAHC36DBCN1, XAHD48FBCN1+JMVT20DC2N1, XAHC36DBCN1+JMVT17CC2N1.
      What refrigerant does the York YH2F36TB21 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 $1,247/yrYou save $551/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 YH2F36TB21
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,247
      Current system, per year
      $1,799
      You save per year
      $551
      Payback
      23.6 years
      Net after 10 years
      -$7,487

      Cooling $774Heating $473Electricity used: 7,796 kWhSaved vs. a minimum-efficiency heat pump: $130

      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 July 14, 2026. How we use the data.