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      2-ton central heat pump · B-Series

      AUX AHU24HPV1BO

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

      Ranks #53 of 331 2 ton central heat pumps for cooling efficiency, and costs about $701 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
      11.0 Cooling efficiency on a 95°F day
      Below average · beats 23%
      Heat at 5°F
      23,000 BTU/h88% of its 47°F output
      Below average · beats 5%

      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 23,000 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 ton, R-32
      General
      BrandAUX
      Also sold asHAVELLS
      Outdoor unit modelAHU24HPV1BO
      SeriesB-Series
      TypeCentral heat pump
      Nominal size2 ton
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-32
      Connected (smart) capableNo
      On the market sinceFebruary 22, 2025
      Last certifiedSeptember 3, 2025
      Cooling
      SEER2Seasonal efficiency, higher is better19.0 (range 19.0)
      EER2Efficiency at 95°F outdoors11.0
      Cooling capacity24,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better9.5
      Capacity at 47°F26,000 BTU/h
      Capacity at 17°F24,000 BTU/h
      Capacity at 5°F23,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.80
      ENERGY STAR cold climateYes
      Heating output as it gets colder88% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with AHU24HPV1BI at the standard test temperatures, in BTU/h:

      Certified matchups1 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.
      AHU24HPV1BI · cold climate19.011.09.523,000217729379
      Same unit, other model numbers1

      These model numbers have exactly the same certified ratings and matchups as the AUX AHU24HPV1BO: 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$595-$1,702

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

      Questions6
      What is the SEER2 rating of the AUX AHU24HPV1BO?
      The AUX AHU24HPV1BO is rated at up to 19.0 SEER2 and 11.0 EER2 for cooling and up to 9.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
      Is the AUX AHU24HPV1BO good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 23,000 BTU/h at 5°F with a COP of 1.80, so it is still 1.8 times as efficient as electric resistance heat at that temperature.
      How much does the AUX AHU24HPV1BO cost to run per year?
      At its rated efficiency it costs about $595-$1,702 a year in electricity in large U.S. cities, depending on climate and local rates - for example $749 in Phoenix and $1,433 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
      Is the AUX AHU24HPV1BO the same as the HAVELLS GHO24H52ACXL05?
      Yes, as far as the certified ratings go. ENERGY STAR lists both 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 AUX AHU24HPV1BO?
      ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses AHU24HPV1BI.
      What refrigerant does the AUX AHU24HPV1BO 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 $751/yrYou save $519/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 AUX AHU24HPV1BO
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $751
      Current system, per year
      $1,270
      You save per year
      $519
      Payback
      17.3 years
      Net after 10 years
      -$3,809

      Cooling $445Heating $307Electricity used: 4,695 kWhSaved vs. a minimum-efficiency heat pump: $228

      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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      See all 331 2 ton central heat pumps, ranked

      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of September 3, 2025. How we use the data.