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      15,000 BTU mini-split heat pump · AURORA

      Daikin RXTH15AVJU

      Below average cooling efficiency and average heating efficiency for a 15,000 BTU mini-split heat pump, and certified for cold climates.

      Ranks #38 of 62 15,000 BTU mini-splits for cooling efficiency, and costs about $429 a year to run in a mixed climate like Atlanta.

      SEER2
      21.0 Cooling efficiency over a season
      Below average · beats 30%
      HSPF2
      10.5 Heating efficiency over a season
      Average · beats 61%
      EER2
      12.2 Cooling efficiency on a 95°F day
      Below average · beats 33%
      Heat at 5°F
      18,300 BTU/h100% of its 47°F output
      Below average · beats 9%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 18,300 BTU/h at 5°F.
      • You want steady temperatures and quiet running - the compressor varies its speed.

      Think twice if…

      • Cooling cost matters most - its SEER2 is below average for mini-splits.

      Calculate my running cost

      Details

      Specifications15,000 BTU, R-32
      General
      BrandDaikin
      Outdoor unit modelRXTH15AVJU
      SeriesAURORA
      TypeMini-split heat pump
      Nominal size15,000 BTU
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-32
      Connected (smart) capableNo
      On the market sinceAugust 3, 2026
      Last certifiedJuly 17, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better21.0 (range 21.0)
      EER2Efficiency at 95°F outdoors12.2
      Cooling capacity15,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better10.5
      Capacity at 47°F18,300 BTU/h
      Capacity at 17°F17,800 BTU/h
      Capacity at 5°F18,300 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.80
      ENERGY STAR cold climateYes
      Heating output as it gets colder100% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with FTXV15AVJU 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.
      FTXV15AVJU DAIKIN · cold climate21.012.210.518,300218672389
      Yearly running cost in 10 large cities$338-$1,062

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

      Questions5
      What is the SEER2 rating of the Daikin RXTH15AVJU?
      The Daikin RXTH15AVJU is rated at up to 21.0 SEER2 and 12.2 EER2 for cooling and up to 10.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
      Is the Daikin RXTH15AVJU good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 18,300 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 Daikin RXTH15AVJU cost to run per year?
      At its rated efficiency it costs about $338-$1,062 a year in electricity in large U.S. cities, depending on climate and local rates - for example $439 in Phoenix and $904 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 Daikin RXTH15AVJU?
      ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses DAIKIN FTXV15AVJU.
      What refrigerant does the Daikin RXTH15AVJU 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 $447/yrYou save $381/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 Daikin RXTH15AVJU
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $447
      Current system, per year
      $827
      You save per year
      $381
      Payback
      14.4 years
      Net after 10 years
      -$1,692

      Cooling $251Heating $195Electricity used: 2,791 kWhSaved vs. a minimum-efficiency heat pump: $196

      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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      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of July 17, 2026. How we use the data.