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      1.5-ton central heat pump · VANTIX

      Sure SP15AZ18AJ2N

      Below average cooling and heating efficiency for a 1.5-ton central heat pump, and certified for cold climates.

      Ranks #116 of 170 1.5 ton central heat pumps for cooling efficiency, and costs about $559 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
      9,500 BTU/h54% of its 47°F output
      Average · beats 58%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 9,500 BTU/h at 5°F.
      • You want a choice of indoor units - 19 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

      Specifications1.5 ton, R-410A
      General
      BrandSure
      Also sold asRUSSELL
      Outdoor unit modelSP15AZ18AJ2N
      SeriesVANTIX
      TypeCentral heat pump
      Nominal size1.5 ton
      CompressorVariable-speed units run longer at low powerTwo-stage
      RefrigerantR-410A
      Connected (smart) capableNo
      On the market sinceFebruary 27, 2023
      Last certifiedJune 3, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better16.0 (range 15.2-16.0)
      EER2Efficiency at 95°F outdoors11.7
      Cooling capacity17,100 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better7.8-8.1
      Capacity at 47°F17,100 BTU/h
      Capacity at 17°F11,000-12,100 BTU/h
      Capacity at 5°F8,400-9,500 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 colder54% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with SH2VZ2417STANN at the standard test temperatures, in BTU/h:

      Certified matchups19 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.
      TCFZ2417STANMS96VA0602317M16.011.78.1-212387275
      TCFZ2417STANMS96VA0602317M16.011.78.1-212387274
      SH2VZ2417STANN · cold climate-16.011.78.19,200212381130
      TCFZ2417STANM · cold climateS962V0703A17M4S15.211.78.19,300212387266
      TCFZ2417STANMS96VA0702317M15.211.78.1-212387281
      TCFZ2417STANMS96VA0702317M15.211.78.1-212387280
      SH2CZ2417STANN-15.211.77.89,200211627517
      SH2CZ2417STANN-15.211.77.89,200211627516
      TCFZ2417STANMS951V0403A17UHU15.211.77.89,500212387180
      TCFZ2417STANMS951V0403A17M4S15.211.77.89,300212387178
      TCFZ2417STANMS962V0403A17M4S15.211.77.89,300212387248
      TCFZ2417STANMS962V0603A17M4S15.211.77.89,400212387243
      TCFZ2417STANMS951V0603A17M4S15.211.77.89,400212387187
      TCFZ2417STANMS97VA070M317K15.211.77.8-212387288
      TCFZ2417STANMS97MV0703A17DHS15.211.77.89,000212387314
      TCFZ2417STANMS97MV0603A17DHS15.211.77.89,000212387301
      TCFZ2417STANMS98MV0603A17UPS15.211.77.88,800212387302
      TCFZ2417STANMS98MV0703A17UPS15.211.77.89,100212387296
      RF2TZ2421STANS-15.211.77.88,400213082130
      Yearly running cost in 10 large cities$502-$1,335

      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 SP15AZ18AJ2N?
      The Sure SP15AZ18AJ2N 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 19 certified matchups SEER2 ranges from 15.2-16.0.
      Is the Sure SP15AZ18AJ2N good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 9,500 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 SP15AZ18AJ2N cost to run per year?
      At its rated efficiency it costs about $502-$1,335 a year in electricity in large U.S. cities, depending on climate and local rates - for example $618 in Phoenix and $1,115 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 SP15AZ18AJ2N?
      ENERGY STAR lists 19 certified combinations for this outdoor unit. The highest-rated ones use TCFZ2417STANM, SH2VZ2417STANN, SH2CZ2417STANN.
      What refrigerant does the Sure SP15AZ18AJ2N 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 $613/yrYou save $269/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 SP15AZ18AJ2N
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $613
      Current system, per year
      $882
      You save per year
      $269
      Payback
      24.2 years
      Net after 10 years
      -$3,809

      Cooling $376Heating $236Electricity used: 3,829 kWhSaved vs. a minimum-efficiency heat pump: $64

      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 1.5 ton models

      See all 170 1.5 ton central heat pumps, ranked

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