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      2-ton central heat pump · VANTIX

      Sure SP18AZ24AJVC

      Excellent cooling efficiency and below average heating efficiency for a 2-ton central heat pump, and certified for cold climates.

      Ranks #37 of 331 2 ton central heat pumps for cooling efficiency, and costs about $691 a year to run in a mixed climate like Atlanta.

      SEER2
      20.0 Cooling efficiency over a season
      Excellent · beats 94%
      HSPF2
      8.5 Heating efficiency over a season
      Below average · beats 38%
      EER2
      12.5 Cooling efficiency on a 95°F day
      Very good · beats 80%
      Heat at 5°F
      26,200 BTU/h108% of its 47°F output
      Average · beats 58%

      A good fit if…

      • You want low cooling bills - its SEER2 beats 94% of central heat pumps.
      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 26,200 BTU/h at 5°F.
      • You want steady temperatures and quiet running - the compressor varies its speed.
      • You want a choice of indoor units - 28 certified pairings.

      Think twice if…

      • 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

      Specifications2 ton, R-410A
      General
      BrandSure
      Also sold asRUSSELL
      Outdoor unit modelSP18AZ24AJVC
      SeriesVANTIX
      TypeCentral heat pump
      Nominal size2 ton
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-410A
      Connected (smart) capableNo
      On the market sinceApril 13, 2023
      Last certifiedJune 3, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better20.0 (range 18.0-20.0)
      EER2Efficiency at 95°F outdoors12.5
      Cooling capacity22,800 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better8.5
      Capacity at 47°F24,000 BTU/h
      Capacity at 17°F23,000-25,600 BTU/h
      Capacity at 5°F24,800-26,200 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.00-2.10
      ENERGY STAR cold climateYes
      Heating output as it gets colder108% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with TCFZ2421HEAAM at the standard test temperatures, in BTU/h:

      Certified matchups28 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.
      TCFZ2421HEAAM · cold climateS97MV0703A17DHS20.012.58.526,000210106736
      TCFZ2421HEAAM · cold climateS962V0403A17M4S20.012.58.526,000210106723
      TCFZ2421HEAAM · cold climateS98MV0603A17UPS20.012.58.526,000210106925
      TCFZ2421HEAAM · cold climateS98MV0603A17UPS20.012.58.526,000210106739
      TCFZ2421HEAAM · cold climateS97MV0603A17DHS20.012.58.526,000210106733
      TCFZ2421HEAAM · cold climateS962V0603A17M4S20.012.58.526,000210106913
      TCFZ2421HEAAM · cold climateS98MV0703A17UPS20.012.58.526,000210106743
      TCFZ2421HEAAM · cold climateS962V0403A17M4S20.012.58.526,000210106910
      TCFZ2421HEAAM · cold climateS962V0703A17M4S20.012.58.526,000210106916
      TCFZ2421HEAAM · cold climateS962V0703A17M4S20.012.58.526,000210106730
      TCFZ2421HEAAM · cold climateS962V0603A17M4S20.012.58.526,000210106727
      TCFZ2421HEAAM · cold climateS97MV0703A17DHS20.012.58.526,000210106922
      TCFZ2421HEAAM · cold climateS97MV0603A17DHS20.012.58.526,000210106920
      TCFZ2421HEAAM · cold climateS98MV0703A17UPS20.012.58.526,000210106928
      TCFZ2421HEAAM · cold climateS97MV0855A21DHS20.012.58.526,000213163982
      TCFZ2421HEAAM · cold climateS962V0705A21M4S20.012.58.526,000213163985
      TCFZ2421HEAAM · cold climateS98MV0855A21UPS20.012.58.526,000213163969
      TCFZ2421HEAAM · cold climateS962V0705A21M4S20.012.58.526,000213163987
      TCFZ2421HEAAM · cold climateS97MV1005A21DHS20.012.58.526,000213163979
      TCFZ2421HEAAM · cold climateS98MV1005A21UPS20.012.58.526,000213163974
      TCFZ2421HEAAM · cold climateS97MV0855A21DHS20.012.58.526,000213163984
      TCFZ2421HEAAM · cold climateS98MV0855A21UPS20.012.58.526,000213163964
      TCFZ2421HEAAM · cold climateS97MV1005A21DHS20.012.58.526,000213163978
      TCFZ2421HEAAM · cold climateS98MV1005A21UPS20.012.58.526,000213163973
      TCFZ2421HEAAM · cold climateS962V0855A21M4S19.012.58.526,200213163971
      TCFZ2421HEAAM · cold climateS962V0855A21M4S19.012.58.526,200213163970
      SHMVZ2421HEACA · cold climate-18.012.58.524,800210106897
      SHMVZ2421HEACA · cold climate-18.012.58.524,800210106711
      Yearly running cost in 10 large cities$540-$1,716

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

      Questions5
      What is the SEER2 rating of the Sure SP18AZ24AJVC?
      The Sure SP18AZ24AJVC is rated at up to 20.0 SEER2 and 12.5 EER2 for cooling and up to 8.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 28 certified matchups SEER2 ranges from 18.0-20.0.
      Is the Sure SP18AZ24AJVC good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 26,200 BTU/h at 5°F with a COP of 2.10, so it is still 2.1 times as efficient as electric resistance heat at that temperature.
      How much does the Sure SP18AZ24AJVC cost to run per year?
      At its rated efficiency it costs about $540-$1,716 a year in electricity in large U.S. cities, depending on climate and local rates - for example $703 in Phoenix and $1,463 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 Sure SP18AZ24AJVC?
      ENERGY STAR lists 28 certified combinations for this outdoor unit. The highest-rated ones use TCFZ2421HEAAM, SHMVZ2421HEACA.
      What refrigerant does the Sure SP18AZ24AJVC 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 $718/yrYou save $478/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 Sure SP18AZ24AJVC
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $718
      Current system, per year
      $1,195
      You save per year
      $478
      Payback
      17.8 years
      Net after 10 years
      -$3,723

      Cooling $401Heating $316Electricity used: 4,484 kWhSaved vs. a minimum-efficiency heat pump: $202

      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 2 ton models

      See all 331 2 ton central heat pumps, ranked

      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of June 3, 2026. How we use the data.