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      4-ton central heat pump · ELITE EL16KP1 Series

      Lennox EL16KP1-048-230A

      Below average cooling and heating efficiency for a 4-ton central heat pump, but not rated for cold climates.

      Ranks #282 of 319 4 ton central heat pumps for cooling efficiency, and costs about $1,547 a year to run in a mixed climate like Atlanta.

      SEER2
      15.5 Cooling efficiency over a season
      Below average · beats 15%
      HSPF2
      8.2 Heating efficiency over a season
      Below average · beats 28%
      EER2
      12.8 Cooling efficiency on a 95°F day
      Very good · beats 85%
      Heat at 5°F
      24,600 BTU/h51% of its 47°F output
      Very good · beats 76%

      A good fit if…

      • You want a choice of indoor units - 24 certified pairings.

      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.
      • Comfort and noise matter - a single-stage compressor runs only full-on or off.

      Calculate my running cost

      Details

      Specifications4 ton, R-454B
      General
      BrandLennox
      Outdoor unit modelEL16KP1-048-230A
      SeriesELITE EL16KP1 Series
      TypeCentral heat pump
      Nominal size4 ton
      CompressorVariable-speed units run longer at low powerSingle stage
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceOctober 1, 2024
      Last certifiedOctober 27, 2025
      Cooling
      SEER2Seasonal efficiency, higher is better15.5 (range 15.2-15.5)
      EER2Efficiency at 95°F outdoors12.4-13.0
      Cooling capacity48,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better7.8-8.2
      Capacity at 47°F46,000-48,000 BTU/h
      Capacity at 17°F29,600-30,600 BTU/h
      Capacity at 5°F23,400-24,600 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.12-2.20
      ENERGY STAR cold climateNo
      Heating output as it gets colder51% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with CBK48MVT-048-230- at the standard test temperatures, in BTU/h:

      Certified matchups24 indoor units

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

      Indoor unitFurnaceSEER2EER2HSPF2Heat @5°FAHRI ref.
      CBK48MVT-048-230--15.512.88.224,200215756533
      CBK48MVT-060-230--15.513.08.223,400215756535
      CBK47UHET-048-230--15.212.48.224,600215756528
      CBK47UHET-048-460--15.212.48.224,600217595414
      CK40[C,U]T-60C-**+TDREL280UH110E60C*15.212.88.124,200215756709
      CK40[C,U]T-60C-**+TDREL280UH110XE60C*15.212.88.124,200215756712
      CK40[C,U]T-60C-**+TDRML180UH110V60C*15.213.08.124,000215756732
      CK40[C,U]T-60C-**+TDREL196UH090XE48C*15.212.88.024,200215756702
      CK40[C,U]T-60C-**+TDREL280UH110E48C*15.213.08.023,800215756707
      CK40[C,U]T-60C-**+TDRML180UH090E60C*15.212.88.024,200215756727
      CK40[C,U]T-60C-**+TDRML180UH110E60C*15.212.88.024,000215756730
      CK40[C,U]T-60C-**+TDRML180UH110XE60C*15.212.88.024,000215756734
      CK40[C,U]T-60C-**+TDRML193UH090XE48C*15.212.88.024,200215756737
      CK40[C,U]T-60C-**+TDRML193UH110XE48C*15.212.88.023,800215756740
      CK40[C,U]T-60C-**+TDRML193UH110XE60C*15.212.88.024,000215756742
      CK40[C,U]T-60C-**+TDRSL280UH080NV60C*15.212.68.024,200215756757
      CK40[C,U]T-60C-**+TDRSL280UH100NV60C*15.212.88.024,000215756764
      CK40[C,U]T-60C-**+TDRSL280UH110V60C*15.212.88.024,000215756767
      CK40[C,U]T-60C-**+TDREL297UH090XE48C*15.212.88.024,200215756801
      CK40[C,U]T-60C-**+TDRML196UH090XE48C*15.212.88.024,200215756806
      CK40[C,U]T-49C-**+TDREL280UH110E48C*15.213.07.824,000215756545
      CK40[C,U]T-49C-**+TDRML180UH110V60C*15.212.87.824,000215756576
      CK40[C,U]T-49C-**+TDRML193UH110XE48C*15.212.87.824,000215756585
      CK40[C,U]T-60C-**+TDREL297UH090XV36C*15.212.67.824,000215756803
      Same unit, other model numbers1

      These model numbers have exactly the same certified ratings and matchups as the Lennox EL16KP1-048-230A: 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$1,451-$3,641

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

      Questions6
      What is the SEER2 rating of the Lennox EL16KP1-048-230A?
      The Lennox EL16KP1-048-230A is rated at up to 15.5 SEER2 and 12.8 EER2 for cooling and up to 8.2 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 24 certified matchups SEER2 ranges from 15.2-15.5.
      Is the Lennox EL16KP1-048-230A 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 4-ton model.
      How much does the Lennox EL16KP1-048-230A cost to run per year?
      At its rated efficiency it costs about $1,451-$3,641 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,756 in Phoenix and $3,017 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
      Is the Lennox EL16KP1-048-230A the same as the Lennox ML14KP1-048-230A?
      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 Lennox EL16KP1-048-230A?
      ENERGY STAR lists 24 certified combinations for this outdoor unit. The highest-rated ones use CBK48MVT-048-230-, CBK48MVT-060-230-, CBK47UHET-048-230-.
      What refrigerant does the Lennox EL16KP1-048-230A 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 $1,725/yrYou save $725/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 Lennox EL16KP1-048-230A
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,725
      Current system, per year
      $2,450
      You save per year
      $725
      Payback
      24.8 years
      Net after 10 years
      -$10,747

      Cooling $1,090Heating $635Electricity used: 10,782 kWhSaved vs. a minimum-efficiency heat pump: $151

      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 4 ton models

      See all 319 4 ton central heat pumps, ranked

      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of October 27, 2025. How we use the data.