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      4-ton central heat pump · F Series

      Napoleon WSEHV4860BA1-N

      Very good cooling and heating efficiency for a 4-ton central heat pump, and certified for cold climates.

      Ranks #57 of 319 4 ton central heat pumps for cooling efficiency, and costs about $1,478 a year to run in a mixed climate like Atlanta.

      SEER2
      19.0 Cooling efficiency over a season
      Very good · beats 85%
      HSPF2
      9.5 Heating efficiency over a season
      Very good · beats 70%
      EER2
      11.5 Cooling efficiency on a 95°F day
      Below average · beats 31%
      Heat at 5°F
      48,000 BTU/h84% of its 47°F output
      Below average · beats 12%

      A good fit if…

      • You want low cooling bills - its SEER2 beats 85% of central heat pumps.
      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 48,000 BTU/h at 5°F.
      • It will heat most of the year - its HSPF2 beats 70% of central heat pumps.
      • You want steady temperatures and quiet running - the compressor varies its speed.

      Think twice if…

      • Nothing stands out - its ratings have no weak spot for its class.

      Calculate my running cost

      Details

      Specifications4 ton, R-454B
      General
      BrandNapoleon
      Outdoor unit modelWSEHV4860BA1-N
      SeriesF Series
      TypeCentral heat pump
      Nominal size4 ton
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceNovember 6, 2024
      Last certifiedSeptember 1, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better19.0 (range 16.0-19.0)
      EER2Efficiency at 95°F outdoors10.0-11.5
      Cooling capacity47,000-54,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better8.5-9.5
      Capacity at 47°F48,000-54,000 BTU/h
      Capacity at 17°F34,000-44,000 BTU/h
      Capacity at 5°F40,500-48,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.75-1.85
      ENERGY STAR cold climateYes
      Heating output as it gets colder84% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with WPFX48A-N at the standard test temperatures, in BTU/h:

      Certified matchups6 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.
      WPFX48A-N · cold climate19.011.59.540,500216626013
      WPFX60A-N · cold climate18.510.59.543,000216025739
      WPCC48ABA1-N · cold climate16.011.08.847,000217463584
      WPCC48ABA1 · cold climate16.011.08.847,000218700911
      WPCC60ABA1-N · cold climate16.010.08.548,000217463582
      WPCC60ABA1 · cold climate16.010.08.548,000218700912
      Yearly running cost in 10 large cities$1,288-$3,561

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

      Questions5
      What is the SEER2 rating of the Napoleon WSEHV4860BA1-N?
      The Napoleon WSEHV4860BA1-N is rated at up to 19.0 SEER2 and 11.5 EER2 for cooling and up to 9.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 6 certified matchups SEER2 ranges from 16.0-19.0.
      Is the Napoleon WSEHV4860BA1-N good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 48,000 BTU/h at 5°F with a COP of 1.85, so it is still 1.9 times as efficient as electric resistance heat at that temperature.
      How much does the Napoleon WSEHV4860BA1-N cost to run per year?
      At its rated efficiency it costs about $1,288-$3,561 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,604 in Phoenix and $2,988 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 Napoleon WSEHV4860BA1-N?
      ENERGY STAR lists 6 certified combinations for this outdoor unit. The highest-rated ones use WPFX48A-N, WPFX60A-N, WPCC48ABA1-N.
      What refrigerant does the Napoleon WSEHV4860BA1-N 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 $1,600/yrYou save $1,114/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 Napoleon WSEHV4860BA1-N
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,600
      Current system, per year
      $2,714
      You save per year
      $1,114
      Payback
      17.5 years
      Net after 10 years
      -$8,360

      Cooling $963Heating $637Electricity used: 10,000 kWhSaved vs. a minimum-efficiency heat pump: $486

      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 319 4 ton central heat pumps, ranked

      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of September 1, 2026. How we use the data.