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      15,000 BTU mini-split heat pump · M-Series

      Mitsubishi Electric SUZ-KA15NA

      Below average cooling efficiency and very good heating efficiency for a 15,000 BTU mini-split heat pump, but not rated for cold climates.

      Ranks #54 of 62 15,000 BTU mini-splits for cooling efficiency, and costs about $426 a year to run in a mixed climate like Atlanta.

      SEER2
      19.6 Cooling efficiency over a season
      Below average · beats 13%
      HSPF2
      10.8 Heating efficiency over a season
      Very good · beats 71%
      EER2
      13.0 Cooling efficiency on a 95°F day
      Average · beats 62%
      Heat at 5°F
      6,900 BTU/h38% of its 47°F output
      Excellent · beats 99%

      A good fit if…

      • It will heat most of the year - its HSPF2 beats 71% of mini-splits.
      • You want steady temperatures and quiet running - the compressor varies its speed.

      Think twice if…

      • You often see nights below 0°F - it is not cold-climate certified.
      • Cooling cost matters most - its SEER2 is below average for mini-splits.
      • You want the newest refrigerant - it uses R-410A, which is being phased down.

      Calculate my running cost

      Details

      Specifications15,000 BTU, R-410A
      General
      BrandMitsubishi Electric
      Also sold asTrane / Mitsubishi Electric
      Outdoor unit modelSUZ-KA15NA
      SeriesM-Series
      TypeMini-split heat pump
      Nominal size15,000 BTU
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-410A
      Connected (smart) capableNo
      On the market sinceNovember 1, 2023
      Last certifiedMay 28, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better19.6 (range 19.6)
      EER2Efficiency at 95°F outdoors13.0
      Cooling capacity15,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better10.8
      Capacity at 47°F18,000 BTU/h
      Capacity at 17°F11,400 BTU/h
      Capacity at 5°F6,900 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.73
      ENERGY STAR cold climateNo
      Heating output as it gets colder38% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with PEAD-A15AA9 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.
      PEAD-A15AA919.613.010.86,900213362142
      Same unit, other model numbers1

      These model numbers have exactly the same certified ratings and matchups as the Mitsubishi Electric SUZ-KA15NA: 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$361-$1,035

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

      Questions6
      What is the SEER2 rating of the Mitsubishi Electric SUZ-KA15NA?
      The Mitsubishi Electric SUZ-KA15NA is rated at up to 19.6 SEER2 and 13.0 EER2 for cooling and up to 10.8 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
      Is the Mitsubishi Electric SUZ-KA15NA good for cold climates?
      It is not cold-climate certified: none of its matchups meet the ENERGY STAR cold-climate criteria (a COP of at least 1.75 at 5°F among other limits). In places with frequent sub-zero nights, pick a cold-climate 15,000 BTU model.
      How much does the Mitsubishi Electric SUZ-KA15NA cost to run per year?
      At its rated efficiency it costs about $361-$1,035 a year in electricity in large U.S. cities, depending on climate and local rates - for example $454 in Phoenix and $873 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
      Is the Mitsubishi Electric SUZ-KA15NA the same as the Trane / Mitsubishi Electric NTXSKS15A112?
      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 Mitsubishi Electric SUZ-KA15NA?
      ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses PEAD-A15AA9.
      What refrigerant does the Mitsubishi Electric SUZ-KA15NA use?
      It uses R-410A. R-410A is being phased down under the EPA AIM Act, and new systems are moving to R-454B and 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 $456/yrYou save $366/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 Mitsubishi Electric SUZ-KA15NA
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $456
      Current system, per year
      $823
      You save per year
      $366
      Payback
      15.0 years
      Net after 10 years
      -$1,835

      Cooling $269Heating $187Electricity used: 2,850 kWhSaved vs. a minimum-efficiency heat pump: $182

      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 May 28, 2026. How we use the data.