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      2-ton central heat pump · VANTIX

      RUSSELL SP15AZ24AJ2N

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

      Ranks #296 of 331 2 ton central heat pumps for cooling efficiency, and costs about $746 a year to run in a mixed climate like Atlanta.

      SEER2
      16.0 Cooling efficiency over a season
      Below average · beats 26%
      HSPF2
      8.1 Heating efficiency over a season
      Below average · beats 20%
      EER2
      11.7 Cooling efficiency on a 95°F day
      Average · beats 43%
      Heat at 5°F
      13,200 BTU/h58% of its 47°F output
      Very good · beats 88%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 13,200 BTU/h at 5°F.
      • You want a choice of indoor units - 36 certified pairings.

      Think twice if…

      • 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.
      • You want the newest refrigerant - it uses R-410A, which is being phased down.

      Calculate my running cost

      Details

      Specifications2 ton, R-410A
      General
      BrandRUSSELL
      Also sold asSure
      Outdoor unit modelSP15AZ24AJ2N
      SeriesVANTIX
      TypeCentral heat pump
      Nominal size2 ton
      CompressorVariable-speed units run longer at low powerTwo-stage
      RefrigerantR-410A
      Connected (smart) capableNo
      On the market sinceFebruary 2, 2023
      Last certifiedJune 3, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better16.0 (range 15.2-16.0)
      EER2Efficiency at 95°F outdoors11.7
      Cooling capacity22,800 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better7.8-8.1
      Capacity at 47°F18,500-22,800 BTU/h
      Capacity at 17°F13,600-16,300 BTU/h
      Capacity at 5°F11,600-13,200 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.10-2.30
      ENERGY STAR cold climateYes
      Heating output as it gets colder58% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with TCFZ2417STANM at the standard test temperatures, in BTU/h:

      Certified matchups36 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.
      TCFZ2417STANM · cold climateS951V0703A17M4S16.011.78.113,200212941633
      TCFZ2417STANM · cold climateS951V0703A17M4S16.011.78.113,200212941606
      SH2VZ2417STANN · cold climate-16.011.78.112,300212381136
      SH2VZ2417STANN · cold climate-16.011.78.112,300212381134
      TCFZ2417STANM · cold climateS962V0603A17M4S15.211.78.112,600212387263
      TCFZ2417STANM · cold climateS962V0603A17M4S15.211.78.112,600212387262
      TCFZ2417STANM · cold climateS951V0603A17UHU15.211.78.112,700212387255
      TCFZ2417STANM · cold climateS962V0703A17M4S15.211.78.112,500212387269
      TCFZ2417STANM · cold climateS951V0403A17UHU15.211.78.112,700212387247
      TCFZ2417STANM · cold climateS951V0603A17M4S15.211.78.112,600212387251
      TCFZ2417STANM · cold climateS962V0403A17M4S15.211.78.112,600212387259
      TCFZ2417STANM · cold climateS951V0403A17UHU15.211.78.112,700212387249
      TCFZ2417STANM · cold climateS951V0603A17UHU15.211.78.112,700212387254
      TCFZ2417STANM · cold climateS98MV0703A17UPS15.211.78.112,200212387333
      TCFZ2417STANMS96VA0702317M15.211.78.1-212387283
      TCFZ2417STANMS96VA0702317M15.211.78.1-212387282
      TCFZ2417STANM · cold climateS97MV0703A17DHS15.211.78.112,600212387287
      TCFZ2417STANM · cold climateS97MV0603A17DHS15.211.78.112,200212387284
      TCFZ2417STANMS96VA0602317M15.211.78.1-212387277
      TCFZ2417STANM · cold climateS97MV0603A17DHS15.211.78.112,200212387285
      TCFZ2417STANMS96VA0402317M15.211.78.1-212387273
      TCFZ2417STANM · cold climateS97MV0703A17DHS15.211.78.112,600212387286
      TCFZ2417STANMS96VA0402317M15.211.78.1-212387272
      TCFZ2417STANMS96VA0602317M15.211.78.1-212387276
      TCFZ2417STANM · cold climateS962V0703A17M4S15.211.78.112,500212387268
      TCFZ2417STANM · cold climateS98MV0703A17UPS15.211.78.112,200212387334
      TCFZ2417STANM · cold climateS98MV0603A17UPS15.211.78.112,200212387330
      TCFZ2417STANM · cold climateS98MV0603A17UPS15.211.78.112,200212387329
      TCFZ2417STANM · cold climateS962V0403A17M4S15.211.78.112,600212387258
      TCFZ2417STANM · cold climateS951V0403A17M4S15.211.78.112,600212387238
      TCFZ2417STANM · cold climateS951V0603A17M4S15.211.78.112,600212387250
      TCFZ2417STANM · cold climateS951V0403A17M4S15.211.78.112,600212387240
      SH2CZ2417STANN-15.211.77.812,300211291753
      SH2CZ2417STANN-15.211.77.811,800211291749
      RF2TZ2421STANS-15.211.77.811,600212381133
      RF2TZ2421STANS-15.211.77.811,600212381132
      Yearly running cost in 10 large cities$669-$1,780

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

      Questions5
      What is the SEER2 rating of the RUSSELL SP15AZ24AJ2N?
      The RUSSELL SP15AZ24AJ2N is rated at up to 16.0 SEER2 and 11.7 EER2 for cooling and up to 8.1 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 36 certified matchups SEER2 ranges from 15.2-16.0.
      Is the RUSSELL SP15AZ24AJ2N good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 13,200 BTU/h at 5°F with a COP of 2.30, so it is still 2.3 times as efficient as electric resistance heat at that temperature.
      How much does the RUSSELL SP15AZ24AJ2N cost to run per year?
      At its rated efficiency it costs about $669-$1,780 a year in electricity in large U.S. cities, depending on climate and local rates - for example $824 in Phoenix and $1,486 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 RUSSELL SP15AZ24AJ2N?
      ENERGY STAR lists 36 certified combinations for this outdoor unit. The highest-rated ones use TCFZ2417STANM, SH2VZ2417STANN, SH2CZ2417STANN.
      What refrigerant does the RUSSELL SP15AZ24AJ2N 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 $817/yrYou save $359/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 RUSSELL SP15AZ24AJ2N
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $817
      Current system, per year
      $1,176
      You save per year
      $359
      Payback
      23.7 years
      Net after 10 years
      -$4,912

      Cooling $502Heating $315Electricity used: 5,105 kWhSaved vs. a minimum-efficiency heat pump: $85

      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.