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      3-ton central heat pump · CLASSIC

      Whirlpool WLP15AY36AJ2N

      Below average cooling and heating efficiency for a 3-ton central heat pump, but not rated for cold climates.

      Ranks #262 of 302 3 ton central heat pumps for cooling efficiency, and costs about $1,146 a year to run in a mixed climate like Atlanta.

      SEER2
      16.0 Cooling efficiency over a season
      Below average · beats 26%
      HSPF2
      7.8 Heating efficiency over a season
      Below average · beats 5%
      EER2
      11.7 Cooling efficiency on a 95°F day
      Average · beats 43%
      Heat at 5°F
      18,000 BTU/h52% of its 47°F output
      Average · beats 58%

      A good fit if…

      • You want a certified 3-ton central heat pump at a typical efficiency level.

      Think twice if…

      • You often see nights below 0°F - it is not cold-climate certified.
      • 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.

      Calculate my running cost

      Details

      Specifications3 ton, R-454B
      General
      BrandWhirlpool
      Outdoor unit modelWLP15AY36AJ2N
      SeriesCLASSIC
      TypeCentral heat pump
      Nominal size3 ton
      CompressorVariable-speed units run longer at low powerTwo-stage
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceNovember 26, 2024
      Last certifiedSeptember 10, 2025
      Cooling
      SEER2Seasonal efficiency, higher is better16.0 (range 15.2-16.0)
      EER2Efficiency at 95°F outdoors11.7
      Cooling capacity34,200 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better7.8
      Capacity at 47°F33,200-34,200 BTU/h
      Capacity at 17°F22,600-23,400 BTU/h
      Capacity at 5°F17,300-18,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.00-2.10
      ENERGY STAR cold climateNo
      Heating output as it gets colder52% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with WLH2TY3621STANN 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.
      WLH2TY3621STANN16.011.77.817,700217619598
      WLB2TY3621STANM16.011.77.818,000217619596
      WLH2TY3617STANN15.211.77.817,300217536706
      Yearly running cost in 10 large cities$1,005-$2,754

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

      Questions5
      What is the SEER2 rating of the Whirlpool WLP15AY36AJ2N?
      The Whirlpool WLP15AY36AJ2N is rated at up to 16.0 SEER2 and 11.7 EER2 for cooling and up to 7.8 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 3 certified matchups SEER2 ranges from 15.2-16.0.
      Is the Whirlpool WLP15AY36AJ2N good for cold climates?
      It is not cold-climate certified: none of its matchups meet the ENERGY STAR cold-climate criteria (a COP of at least 1.75 at 5°F among other limits). In places with frequent sub-zero nights, pick a cold-climate 3-ton model.
      How much does the Whirlpool WLP15AY36AJ2N cost to run per year?
      At its rated efficiency it costs about $1,005-$2,754 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,248 in Phoenix and $2,307 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 Whirlpool WLP15AY36AJ2N?
      ENERGY STAR lists 3 certified combinations for this outdoor unit. The highest-rated ones use WLH2TY3621STANN, WLB2TY3621STANM, WLH2TY3617STANN.
      What refrigerant does the Whirlpool WLP15AY36AJ2N 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 $1,243/yrYou save $520/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 Whirlpool WLP15AY36AJ2N
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,243
      Current system, per year
      $1,763
      You save per year
      $520
      Payback
      25.0 years
      Net after 10 years
      -$7,800

      Cooling $752Heating $491Electricity used: 7,772 kWhSaved vs. a minimum-efficiency heat pump: $109

      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 3 ton models

      See all 302 3 ton central heat pumps, ranked

      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of September 10, 2025. How we use the data.