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      5-ton central heat pump · DAVE LENNOX SIGNATURE SL22KLV SERIES

      Lennox SL22KLV-060-230A

      Excellent cooling efficiency and very good heating efficiency for a 5-ton central heat pump, and certified for cold climates.

      Ranks #1 of 100 5 ton central heat pumps for cooling efficiency, and costs about $1,396 a year to run in a mixed climate like Atlanta.

      SEER2
      21.1 Cooling efficiency over a season
      Excellent · beats 98%
      HSPF2
      9.6 Heating efficiency over a season
      Very good · beats 76%
      EER2
      11.7 Cooling efficiency on a 95°F day
      Average · beats 43%
      Heat at 5°F
      45,500 BTU/h82% of its 47°F output
      Average · beats 48%

      A good fit if…

      • You want low cooling bills - its SEER2 beats 98% of central heat pumps.
      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 45,500 BTU/h at 5°F.
      • It will heat most of the year - its HSPF2 beats 76% 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

      Specifications5 ton, R-454B
      General
      BrandLennox
      Outdoor unit modelSL22KLV-060-230A
      SeriesDAVE LENNOX SIGNATURE SL22KLV SERIES
      TypeCentral heat pump
      Nominal size5 ton
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceJune 12, 2024
      Last certifiedAugust 20, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better21.1 (range 18.2-21.1)
      EER2Efficiency at 95°F outdoors10.9-11.7
      Cooling capacity54,500-56,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better8.2-9.6
      Capacity at 47°F50,500-56,000 BTU/h
      Capacity at 17°F44,000-60,000 BTU/h
      Capacity at 5°F35,400-45,500 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.70-2.04
      ENERGY STAR cold climateYes
      Heating output as it gets colder82% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with CK40[C,U]T-60C-**+TDR at the standard test temperatures, in BTU/h:

      Certified matchups33 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.
      CK40[C,U]T-60C-**+TDR · cold climateSL280UH080NV60C*21.111.79.042,000216776120
      CK40[C,U]T-60C-**+TDR · cold climateSL280UH100NV60C*20.511.79.542,000216776123
      CK40[C,U]T-60C-**+TDR · cold climateSL280UH090V60C*20.011.79.442,500216776121
      CK40[C,U]T-60C-**+TDR · cold climateSL280UH090XV60C*20.011.79.442,500216776122
      CK40[C,U]T-60C-**+TDR · cold climateSLP99UH110XV60C*20.011.59.442,500216776128
      CK40[C,U]T-60C-**+TDR · cold climateEL297UH110XV60C*20.011.59.442,500216776130
      CK40[C,U]T-49C-**+TDR · cold climateSL280UH080NV60C*20.011.78.541,500216776131
      CK40[C,U]T-49C-**+TDR · cold climateSL280UH100NV60C*20.011.78.541,500216776134
      CK40[C,U]T-60C-**+TDR · cold climateSL280UH110V60C*20.011.58.542,500216776124
      CK40[C,U]T-60C-**+TDR · cold climateSL280UH110XV60C*20.011.58.542,500216776125
      CK40[C,U]T-60C-**+TDR · cold climateSLP99UH090XV60C*20.011.58.542,500216776127
      CBK48MVT-060-230- · cold climate-19.511.09.645,500216776106
      CK40[C,U]T-60C-**+TDR · cold climateSL297UH080NV60C*19.511.29.043,000216776126
      CK40[C,U]T-49C-**+TDR · cold climateSL280UH090V60C*19.511.78.541,000216776132
      CK40[C,U]T-49C-**+TDR · cold climateSL280UH090XV60C*19.511.78.541,000216776133
      CK40[C,U]T-49C-**+TDR · cold climateSLP99UH090XV60C*19.511.58.541,500216776138
      CK40[C,U]T-49C-**+TDR · cold climateEL297UH090XV60C*19.511.58.541,500216776140
      CK40[C,U]T-60D-**+TDR · cold climateSL280UH135V60D*19.511.28.543,000216776143
      CK40[C,U]T-60D-**+TDR · cold climateSLP99UH135XV60D*19.511.28.543,000216776145
      CK40[C,U]T-60D-**+TDR · cold climateEL297UH110XV60C*19.511.08.543,000216776147
      CK40[C,U]T-49C-**+TDR · cold climateSL280UH110V60C*19.511.58.241,500216776135
      CK40[C,U]T-49C-**+TDR · cold climateSL280UH110XV60C*19.511.58.241,500216776136
      CK40[C,U]T-49C-**+TDR · cold climateSLP99UH110XV60C*19.511.58.241,500216776139
      CK40[C,U]T-49C-**+TDR · cold climateEL297UH110XV60C*19.511.58.241,500216776141
      CK40[C,U]T-49C-**+TDR · cold climateSL297UH080NV60C*19.011.28.541,500216776137
      CK40[C,U]T-60D-**+TDR · cold climateSL297UH080NV60C*19.011.08.543,500216776144
      CK40[C,U]T-60D-**+TDR · cold climateEL297UH135XV60D*19.011.28.543,000216776146
      CK40HT-51/61C-**+TDRSL280UH080NV60C*18.511.08.235,600217476471
      CK40HT-51/61C-**+TDRSL280UH090V60C*18.511.08.235,400217476472
      CK40HT-51/61C-**+TDRSL280UH090XV60C*18.511.08.235,400217476473
      CK40HT-51/61C-**+TDRSL280UH110V60C*18.511.08.235,400217476474
      CK40HT-51/61C-**+TDRSL280UH110XV60C*18.511.08.235,400217476475
      CK40[C,U]T-60C-**+TDR · cold climateEL297UH090XV60C*18.210.98.542,500216776129
      Yearly running cost in 10 large cities$1,237-$3,346

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

      Questions5
      What is the SEER2 rating of the Lennox SL22KLV-060-230A?
      The Lennox SL22KLV-060-230A is rated at up to 21.1 SEER2 and 11.7 EER2 for cooling and up to 9.6 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 33 certified matchups SEER2 ranges from 18.2-21.1.
      Is the Lennox SL22KLV-060-230A good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 45,500 BTU/h at 5°F with a COP of 2.04, so it is still 2.0 times as efficient as electric resistance heat at that temperature.
      How much does the Lennox SL22KLV-060-230A cost to run per year?
      At its rated efficiency it costs about $1,237-$3,346 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,530 in Phoenix and $2,800 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 Lennox SL22KLV-060-230A?
      ENERGY STAR lists 33 certified combinations for this outdoor unit. The highest-rated ones use CK40[C,U]T-60C-**+TDR, CK40[C,U]T-49C-**+TDR, CBK48MVT-060-230-.
      What refrigerant does the Lennox SL22KLV-060-230A 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 $1,521/yrYou save $1,267/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 SL22KLV-060-230A
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,521
      Current system, per year
      $2,788
      You save per year
      $1,267
      Payback
      16.6 years
      Net after 10 years
      -$8,328

      Cooling $926Heating $595Electricity used: 9,505 kWhSaved vs. a minimum-efficiency heat pump: $607

      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 August 20, 2026. How we use the data.