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      Best 15,000 BTU mini-splits

      62 ENERGY STAR certified 15,000 BTU mini-splits from 20 brands, ranked on their official ratings. Here are the winners for each kind of home, then the full list.

      Best overall

      Fujitsu AOUH15KTAP1

      15,000 BTU mini-split · AIRSTAGE H-Series · cold-climate certified

      SEER2
      28.7
      HSPF2
      13.0
      Heat at 5°F
      18,400

      Highest seasonal cooling efficiency of all 62 15,000 BTU mini-splits, with 13.0 HSPF2 for heating.

      Full specs and running cost

      Best for cold winters

      Fujitsu AOUG15LZAS1

      15,000 BTU mini-split · H-Series · cold-climate certified

      SEER2
      25.3
      HSPF2
      12.8
      COP at 5°F
      2.52

      Cold-climate certified, with one of the best efficiencies at 5°F in this size (COP 2.52).

      Full specs and running cost

      Compare all 62 15,000 BTU mini-splits

      Filter by brand, efficiency or cold climate

      62 models, ranked by SEER2 (cooling efficiency), then HSPF2.

      #Cold
      1Fujitsu AOUH15KTAP1AIRSTAGE H-Series15,000 BTU28.715.413.018,400Yes4
      2Fujitsu AOUH15KZAH1AIRSTAGE H-Series15,000 BTU27.514.812.721,000Yes2
      3Century A-ZHP15SA-1A-ZHP Series15,000 BTU27.013.011.013,500Yes2
      4MDV MOX430-15HFN10-M1HMOD Series15,000 BTU27.013.011.013,500Yes1
      5Mitsubishi Electric MUZ-FX15NLHZM-Series15,000 BTU25.914.711.022,200Yes1
      6Hisense AO-15U3T25PHi-PRO15,000 BTU25.613.711.112,200Yes2
      7Hisense AS-15UW3TBW00Hi-Pro15,000 BTU25.613.711.112,200Yes1
      8Fujitsu AOUG15LZAS1H-Series15,000 BTU25.313.912.817,500Yes2
      9Fujitsu AOUG15LZAH1H-Series15,000 BTU25.313.912.717,500Yes2
      10Quilt QO1-M2Z18-NC-NAQuilt15,000 BTU25.014.512.018,000Yes2
      11LG KUSAL151AKUSAL151A15,000 BTU25.015.011.218,000Yes1
      12Sharp AE-X15CUSingle Zone series15,000 BTU24.013.411.015,300Yes2
      13Midea MO1ES-H15B-2AMO1 Series15,000 BTU23.511.79.911,500Yes1
      14Samsung AR70H15CACWXBespoke AI WindFree Pro Max Heat (RAC)15,000 BTU23.014.611.217,300Yes2
      15Lennox MWLD015S6S-1PMWLD Mini-Split15,000 BTU23.014.611.015,600Yes1
      16MDV MOX430-15HFN10-M1XMSEP Series15,000 BTU22.714.011.518,000Yes2
      17Mainline ML15HP230NEXH-OML Series15,000 BTU22.714.010.218,000Yes1
      18Panasonic CS-XZ15AKUAW/CU-XZ15AKUACClimaPure XZ15,000 BTU22.413.412.015,300Yes1
      19Panasonic CU-XZ15AKUACClimapure XZ15,000 BTU22.413.412.015,300Yes2
      20American Standard / Mitsubishi Electric NAXSPH15B112AM-Series15,000 BTU22.314.010.419,400Yes1
      21Mitsubishi Electric MUZ-FS15NAM-Series15,000 BTU22.314.010.419,400Yes3
      22American Standard / Mitsubishi Electric NAXSPB15B112AM-Series15,000 BTU22.314.09.919,400Yes1
      23Mitsubishi Electric MUZ-FS15NAHM-Series15,000 BTU22.314.09.919,400Yes3
      24Midea MO1HS-H15B-2AMO1 Series15,000 BTU22.213.511.517,500Yes1
      25Mitsubishi Electric MUZ-GX15NLM-Series15,000 BTU22.213.011.013,700Yes1
      26Mitsubishi Electric MUFZ-KJ15NAHZM-Series15,000 BTU22.213.510.7-No3
      27Mitsubishi Electric MUZ-GX15NLHZM-Series15,000 BTU22.213.010.014,000Yes1
      28Panasonic CU-XE15WKUACS-XE15WKUAW / CU-XE15WKUA15,000 BTU22.012.611.015,300Yes1
      29York YRACGJ15WHAAY60015,000 BTU22.013.011.014,000Yes1
      30York YRACGJ15WHBAY60015,000 BTU22.013.011.014,000Yes1
      31Lennox MWHD015S6S-1PMWHD Mini-Split15,000 BTU21.513.010.010,500No1
      32Samsung AR15DXFAMWKXWindFree - Standard (RAC)15,000 BTU21.513.010.010,500No2
      33Mitsubishi Electric MUZ-FH15NAHM-Series15,000 BTU21.512.59.9-No1
      34GE Appliances ASH115PRDBAltitude15,000 BTU21.512.59.614,200Yes1
      35GE Appliances ASH115PRDWAAltitude15,000 BTU21.512.59.611,000No1
      36Mitsubishi Electric MUZ-GS15NAM-Series15,000 BTU21.012.811.014,000Yes3
      37Daikin RXT15AVJUAURORA15,000 BTU21.012.210.518,300Yes1
      38Daikin RXTH15AVJUAURORA15,000 BTU21.012.210.518,300Yes1
      39Mitsubishi Electric MUZ-GS15NAHM-Series15,000 BTU21.012.810.414,000Yes1
      40Mitsubishi Electric MUZ-GL15NAHM-Series15,000 BTU21.013.09.7-No1
      41Mitsubishi Electric MUZ-GS15NAHZM-Series15,000 BTU21.012.89.414,000Yes3
      42Mitsubishi Electric SUZ-AA15NLM series15,000 BTU20.912.110.69,900No10
      43Mitsubishi Electric NTXSKS15A112ANV-Series15,000 BTU20.712.210.79,400No1
      44Mitsubishi Electric SUZ-KA15NA2M-Series15,000 BTU20.712.210.79,400No1
      45Mitsubishi Electric SUZ-KA15NAH2M-Series15,000 BTU20.712.29.69,400No1
      46Mitsubishi Electric SUZ-CA15NLHM series15,000 BTU20.612.010.39,800No3
      47Star Air Kontrol SAK-18-CC/220VSAK Series15,000 BTU20.512.510.512,700No1
      48ROVSUN TMSC-18HA2/I2XI20B-OCASSETTE-single15,000 BTU20.511.08.513,200Yes2
      49Fujitsu AOU15RLFFH-Series15,000 BTU20.312.510.718,100Yes1
      50Fujitsu AOU15RLFFHH-Series15,000 BTU20.312.510.518,100Yes1
      51Mitsubishi Electric MUZ-HM15NAM-Series15,000 BTU20.012.010.0-No3
      52Samsung AR60H15C1JWXBespoke AI WindFree (RAC)15,000 BTU20.013.010.013,800No1
      53Mitsubishi Electric MUZ-HX15NLH2M-Series15,000 BTU20.012.09.012,600Yes1
      54Mitsubishi Electric SUZ-KA15NAM-Series15,000 BTU19.613.010.86,900No1
      55Mitsubishi Electric SUZ-KA15NAHM-Series15,000 BTU19.613.09.76,900No1
      56Mitsubishi Electric SUZ-KA15NAHZM-Series15,000 BTU18.312.59.218,000Yes2
      57Trane / Mitsubishi Electric NTXSKH15A112NV-Series15,000 BTU18.312.59.218,000Yes1
      58Daikin RXP15AVJUAURORA15,000 BTU18.011.89.218,000Yes1
      59Mitsubishi Electric SUZ-AA18NLM series15,000 BTU17.511.710.610,700No12
      60Mitsubishi Electric SUZ-AA15NLHZM series15,000 BTU17.511.910.218,000Yes10
      61Mitsubishi Electric SUZ-AA18NLHZM series15,000 BTU17.511.710.220,000Yes12
      62Trane / Mitsubishi Electric NTXSKH15A112AANV-Series15,000 BTU17.512.47.916,400No2

      More about 15,000 BTU mini-splits

      Top 5 for cold climatesranked by COP at 5°F

      Cold-climate certified models with the highest efficiency at 5°F. Often sold as hyper-heat or low-ambient models.

      #ModelSEER2EER2HSPF2COP at 5°F
      1Fujitsu AOUH15KTAP128.715.413.02.52
      2Fujitsu AOUG15LZAS125.313.912.82.52
      3Lennox MWLD015S6S-1Palso sold as 3 other model numbers23.014.611.02.50
      4Fujitsu AOUG15LZAH125.313.912.72.34
      5York YRACGJ15WHAAalso sold as 1 other model number22.013.011.02.25
      Top 5 for hot climatesranked by EER2

      Highest efficiency on a 95°F afternoon, which drives summer bills in places like Phoenix, Houston and Florida.

      #ModelSEER2EER2HSPF2COP at 5°F
      1Fujitsu AOUH15KTAP128.715.413.02.52
      2LG KUSAL151A25.015.011.21.90
      3Fujitsu AOUH15KZAH127.514.812.72.10
      4Mitsubishi Electric MUZ-FX15NLHZalso sold as 1 other model number25.914.711.02.06
      5Lennox MWLD015S6S-1Palso sold as 3 other model numbers23.014.611.02.50
      Top 5 for heatingranked by HSPF2

      Highest seasonal heating efficiency, for homes where the heat pump replaces a furnace.

      #ModelSEER2EER2HSPF2COP at 5°F
      1Fujitsu AOUH15KTAP128.715.413.02.52
      2Fujitsu AOUG15LZAS125.313.912.82.52
      3Fujitsu AOUG15LZAH125.313.912.72.34
      4Fujitsu AOUH15KZAH127.514.812.72.10
      5Panasonic CS-XZ15AKUAW/CU-XZ15AKUACalso sold as 1 other model number22.413.412.02.14
      How many square feet does a 15,000 BTU mini-split cover?500-700 sq ft
      • Hot and dry climate (Phoenix)up to 550 sq ft
      • Hot and humid climate (Houston)up to 550 sq ft
      • Mixed climate (Atlanta)up to 700 sq ft
      • Cold climate (Chicago)up to 550 sq ft
      • Very cold climate (Minneapolis)up to 500 sq ft

      Average insulation, 8 ft ceilings. Sunny rooms, kitchens and older houses need more capacity. Size calculator

      What a 15,000 BTU mini-split costs to run$32/month typical
      • Hot and dry (Phoenix)$413/yr · best $312
      • Hot and humid (Houston)$370/yr · best $280
      • Mixed (Atlanta)$385/yr · best $294
      • Cold (Chicago)$761/yr · best $583
      • Very cold (Minneapolis)$786/yr · best $603

      Typical = median model of this size (21.5 SEER2, 10.0 HSPF2); best = most efficient. Local electricity prices from the U.S. EIA. Calculate for your home

      Questions4
      What is the best 15,000 BTU mini-split?
      On certified efficiency, the Fujitsu AOUH15KTAP1 leads at 28.7 SEER2 and 13.0 HSPF2. For cold climates the Fujitsu AOUH15KTAP1 has the best efficiency at 5°F (COP 2.52). The right pick depends on your climate, so compare the lists above.
      How many square feet does a 15,000 BTU mini-split cover?
      About 500 to 700 sq ft with average insulation: 550 sq ft in a hot and dry climate like Phoenix, 550 sq ft in a hot and humid climate like Houston, 700 sq ft in a mixed climate like Atlanta, 550 sq ft in a cold climate like Chicago, 500 sq ft in a very cold climate like Minneapolis. Cold climates cover less because the heating load is larger.
      How much does a 15,000 BTU mini-split cost to run?
      A typical 15,000 BTU mini-split (21.5 SEER2, 10.0 HSPF2) uses about $385 of electricity a year in a mixed climate like Atlanta, roughly $32 a month on average. Across U.S. climates it ranges from $370 to $786 a year. The most efficient model in this class saves about $92 a year in Atlanta.
      Which 15,000 BTU mini-split works best in cold weather?
      Look for ENERGY STAR cold-climate certification (44 of 62 qualify). The Fujitsu AOUH15KTAP1 has the highest COP at 5°F in this class (2.52) and delivers 18,400 BTU/h at 5°F. Cold-climate units are often marketed as hyper-heat or low-ambient models.

      Other sizes

      ENERGY STAR data, updated October 12, 2026