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      48,000 BTU mini-split heat pump · Hi UNI

      Hisense AUW-48U3TH1

      Below average cooling efficiency and average heating efficiency for a 48,000 BTU mini-split heat pump, and certified for cold climates.

      Ranks #93 of 146 48,000 BTU mini-splits for cooling efficiency, and costs about $1,291 a year to run in a mixed climate like Atlanta.

      SEER2
      19.0 Cooling efficiency over a season
      Below average · beats 9%
      HSPF2
      10.0 Heating efficiency over a season
      Average · beats 43%
      EER2
      11.7 Cooling efficiency on a 95°F day
      Below average · beats 16%
      Heat at 5°F
      48,000 BTU/h100% of its 47°F output
      Average · beats 67%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 48,000 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

      Specifications48,000 BTU, R-454B
      General
      BrandHisense
      Outdoor unit modelAUW-48U3TH1
      SeriesHi UNI
      TypeMini-split heat pump
      Nominal size48,000 BTU
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceMay 20, 2025
      Last certifiedApril 17, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better19.0 (range 19.0)
      EER2Efficiency at 95°F outdoors11.7
      Cooling capacity48,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better10.0
      Capacity at 47°F48,000 BTU/h
      Capacity at 17°F37,000 BTU/h
      Capacity at 5°F48,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.10
      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 AUH-48UX3TEH5 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.
      AUH-48UX3TEH5 HISENSE · cold climate19.011.710.048,000217469235
      Same unit, other model numbers1

      These model numbers have exactly the same certified ratings and matchups as the Hisense AUW-48U3TH1: 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$1,185-$3,059

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

      Questions6
      What is the SEER2 rating of the Hisense AUW-48U3TH1?
      The Hisense AUW-48U3TH1 is rated at up to 19.0 SEER2 and 11.7 EER2 for cooling and up to 10.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
      Is the Hisense AUW-48U3TH1 good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 48,000 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 Hisense AUW-48U3TH1 cost to run per year?
      At its rated efficiency it costs about $1,185-$3,059 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,446 in Phoenix and $2,544 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
      Is the Hisense AUW-48U3TH1 the same as the Hisense AOU-48U3T25U?
      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 Hisense AUW-48U3TH1?
      ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses HISENSE AUH-48UX3TEH5.
      What refrigerant does the Hisense AUW-48U3TH1 use?
      It uses R-454B.

      Running cost and savings

      Pre-filled with this model. Pick your city and what you heat with today; everything else is optional.

      Heat pump $1,427/yrYou save $1,048/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 Hisense AUW-48U3TH1
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,427
      Current system, per year
      $2,475
      You save per year
      $1,048
      Payback
      17.2 years
      Net after 10 years
      -$7,519

      Cooling $889Heating $538Electricity used: 8,918 kWhSaved vs. a minimum-efficiency heat pump: $471

      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 146 48,000 BTU mini-splits, ranked

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