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      2.5-ton central heat pump · T32

      Innovair TOV36H2XA

      Very good cooling and heating efficiency for a 2.5-ton central heat pump, and certified for cold climates.

      Ranks #18 of 199 2.5 ton central heat pumps for cooling efficiency, and costs about $916 a year to run in a mixed climate like Atlanta.

      SEER2
      19.0 Cooling efficiency over a season
      Very good · beats 85%
      HSPF2
      9.5 Heating efficiency over a season
      Very good · beats 70%
      EER2
      13.2 Cooling efficiency on a 95°F day
      Excellent · beats 93%
      Heat at 5°F
      24,000 BTU/h79% of its 47°F output
      Average · beats 69%

      A good fit if…

      • You want low cooling bills - its SEER2 beats 85% of central heat pumps.
      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 24,000 BTU/h at 5°F.
      • It will heat most of the year - its HSPF2 beats 70% 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

      Specifications2.5 ton, R-32
      General
      BrandInnovair
      Also sold asOUTES, Emeric
      Outdoor unit modelTOV36H2XA
      SeriesT32
      TypeCentral heat pump
      Nominal size2.5 ton
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-32
      Connected (smart) capableNo
      On the market sinceSeptember 29, 2026
      Last certifiedSeptember 30, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better19.0 (range 18.0-19.0)
      EER2Efficiency at 95°F outdoors11.2-13.2
      Cooling capacity24,000-33,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better8.8-9.5
      Capacity at 47°F24,000-33,000 BTU/h
      Capacity at 17°F17,500-21,600 BTU/h
      Capacity at 5°F19,000-24,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.00-2.15
      ENERGY STAR cold climateYes
      Heating output as it gets colder79% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with TAV24X2A at the standard test temperatures, in BTU/h:

      Certified matchups2 indoor units

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

      Indoor unitSEER2EER2HSPF2Heat @5°FAHRI ref.
      TAV24X2A · cold climate19.013.29.519,000217496784
      TAV36X2A · cold climate18.011.28.824,000217496785
      Same unit, other model numbers2

      These model numbers have exactly the same certified ratings and matchups as the Innovair TOV36H2XA: 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$816-$2,192

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

      Questions6
      What is the SEER2 rating of the Innovair TOV36H2XA?
      The Innovair TOV36H2XA is rated at up to 19.0 SEER2 and 13.2 EER2 for cooling and up to 9.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 2 certified matchups SEER2 ranges from 18.0-19.0.
      Is the Innovair TOV36H2XA good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 24,000 BTU/h at 5°F with a COP of 2.15, so it is still 2.2 times as efficient as electric resistance heat at that temperature.
      How much does the Innovair TOV36H2XA cost to run per year?
      At its rated efficiency it costs about $816-$2,192 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,008 in Phoenix and $1,832 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
      Is the Innovair TOV36H2XA the same as the OUTES OTD-H36DMR3-B01/SE180?
      Yes, as far as the certified ratings go. ENERGY STAR lists 3 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 Innovair TOV36H2XA?
      ENERGY STAR lists 2 certified combinations for this outdoor unit. The highest-rated ones use TAV24X2A, TAV36X2A.
      What refrigerant does the Innovair TOV36H2XA use?
      It uses 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 $1,000/yrYou save $701/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 Innovair TOV36H2XA
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,000
      Current system, per year
      $1,702
      You save per year
      $701
      Payback
      17.8 years
      Net after 10 years
      -$5,489

      Cooling $611Heating $389Electricity used: 6,253 kWhSaved vs. a minimum-efficiency heat pump: $305

      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 2.5 ton models

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      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of September 30, 2026. How we use the data.