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      24,000 BTU mini-split heat pump · P-Series

      Mitsubishi Electric PUZ-A24NHA8

      Very good cooling efficiency and below average heating efficiency for a 24,000 BTU mini-split heat pump, but not rated for cold climates.

      Ranks #36 of 430 24,000 BTU mini-splits for cooling efficiency, and costs about $689 a year to run in a mixed climate like Atlanta.

      SEER2
      24.7 Cooling efficiency over a season
      Very good · beats 81%
      HSPF2
      9.3 Heating efficiency over a season
      Below average · beats 18%
      EER2
      14.3 Cooling efficiency on a 95°F day
      Very good · beats 86%
      Heat at 5°F
      10,900 BTU/h32% of its 47°F output
      Average · beats 62%

      A good fit if…

      • You want low cooling bills - its SEER2 beats 81% of mini-splits.
      • You want steady temperatures and quiet running - the compressor varies its speed.
      • You want a choice of indoor units - 10 certified pairings.

      Think twice if…

      • You often see nights below 0°F - it is not cold-climate certified.
      • You mainly need heat - its HSPF2 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

      Specifications24,000 BTU, R-410A
      General
      BrandMitsubishi Electric
      Also sold asTrane / Mitsubishi Electric
      Outdoor unit modelPUZ-A24NHA8
      SeriesP-Series
      TypeMini-split heat pump
      Nominal size24,000 BTU
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-410A
      Connected (smart) capableNo
      On the market sinceOctober 1, 2023
      Last certifiedJune 25, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better24.7 (range 20.0-24.7)
      EER2Efficiency at 95°F outdoors12.1-14.3
      Cooling capacity24,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better9.0-9.3
      Capacity at 47°F28,000-29,000 BTU/h
      Capacity at 17°F14,900-15,800 BTU/h
      Capacity at 5°F9,200-10,900 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.73-2.08
      ENERGY STAR cold climateNo
      Heating output as it gets colder32% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with PLA-A24EA at the standard test temperatures, in BTU/h:

      Certified matchups10 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.
      PLA-A24EA24.714.39.39,200213249020
      TPLA0A0241EA Trane / Mitsubishi Electric24.714.39.39,200213307623
      PKA-A24KA21.312.29.310,700213249022
      TPKA0A0241KA Trane / Mitsubishi Electric21.312.29.310,700213307625
      PCA-A24KA21.012.29.210,300213249023
      TPCA0A0241KA Trane / Mitsubishi Electric21.012.29.210,300213307626
      PVA-A24AA20.512.19.09,800213249021
      TPVA0A0241AA Trane / Mitsubishi Electric20.512.19.09,800213307624
      PEAD-A24AA20.012.29.210,900213249024
      TPEADA0241AA Trane / Mitsubishi Electric20.012.29.210,900213307627
      Same unit, other model numbers1

      These model numbers have exactly the same certified ratings and matchups as the Mitsubishi Electric PUZ-A24NHA8: 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$465-$1,771

      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 PUZ-A24NHA8?
      The Mitsubishi Electric PUZ-A24NHA8 is rated at up to 24.7 SEER2 and 14.3 EER2 for cooling and up to 9.3 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 10 certified matchups SEER2 ranges from 20.0-24.7.
      Is the Mitsubishi Electric PUZ-A24NHA8 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 24,000 BTU model.
      How much does the Mitsubishi Electric PUZ-A24NHA8 cost to run per year?
      At its rated efficiency it costs about $465-$1,771 a year in electricity in large U.S. cities, depending on climate and local rates - for example $646 in Phoenix and $1,536 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
      Is the Mitsubishi Electric PUZ-A24NHA8 the same as the Trane / Mitsubishi Electric TRUZA0241HA80?
      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 PUZ-A24NHA8?
      ENERGY STAR lists 10 certified combinations for this outdoor unit. The highest-rated ones use PLA-A24EA, Trane / Mitsubishi Electric TPLA0A0241EA, PKA-A24KA.
      What refrigerant does the Mitsubishi Electric PUZ-A24NHA8 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 $679/yrYou save $624/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 PUZ-A24NHA8
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $679
      Current system, per year
      $1,303
      You save per year
      $624
      Payback
      14.4 years
      Net after 10 years
      -$2,763

      Cooling $342Heating $337Electricity used: 4,245 kWhSaved vs. a minimum-efficiency heat pump: $330

      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.

      Similar 24,000 BTU models

      See all 430 24,000 BTU mini-splits, ranked

      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of June 25, 2026. How we use the data.