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      24,000 BTU mini-split heat pump · DE-series

      Elios DEA24HOS28230E8

      Below average cooling efficiency and very good heating efficiency for a 24,000 BTU mini-split heat pump, and certified for cold climates.

      Ranks #306 of 430 24,000 BTU mini-splits for cooling efficiency, and costs about $590 a year to run in a mixed climate like Atlanta.

      SEER2
      20.5 Cooling efficiency over a season
      Below average · beats 24%
      HSPF2
      11.5 Heating efficiency over a season
      Very good · beats 84%
      EER2
      11.0 Cooling efficiency on a 95°F day
      Below average · beats 9%
      Heat at 5°F
      27,000 BTU/h103% of its 47°F output
      Average · beats 48%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 27,000 BTU/h at 5°F.
      • It will heat most of the year - its HSPF2 beats 84% of mini-splits.
      • 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.
      • 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
      BrandElios
      Outdoor unit modelDEA24HOS28230E8
      SeriesDE-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 sinceJanuary 26, 2019
      Last certifiedJune 25, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better20.5 (range 18.9-20.5)
      EER2Efficiency at 95°F outdoors11.0-12.0
      Cooling capacity21,600-24,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better10.4-11.5
      Capacity at 47°F23,400-25,000 BTU/h
      Capacity at 17°F19,400-21,000 BTU/h
      Capacity at 5°F23,400-27,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.89-2.00
      ENERGY STAR cold climateYes
      Heating output as it gets colder103% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with DUA24HICU230X5 at the standard test temperatures, in BTU/h:

      Certified matchups3 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.
      DUA24HICU230X5 ELIOS · cold climate20.511.011.525,800207742442
      DUA24HIDU230X5 ELIOS · cold climate19.212.010.527,000207742455
      DE24HIW23230E3 ELIOS · cold climate18.911.710.423,400208119831
      Yearly running cost in 10 large cities$549-$1,392

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

      Questions5
      What is the SEER2 rating of the Elios DEA24HOS28230E8?
      The Elios DEA24HOS28230E8 is rated at up to 20.5 SEER2 and 11.0 EER2 for cooling and up to 11.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 3 certified matchups SEER2 ranges from 18.9-20.5.
      Is the Elios DEA24HOS28230E8 good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 27,000 BTU/h at 5°F with a COP of 2.00, so it is still 2.0 times as efficient as electric resistance heat at that temperature.
      How much does the Elios DEA24HOS28230E8 cost to run per year?
      At its rated efficiency it costs about $549-$1,392 a year in electricity in large U.S. cities, depending on climate and local rates - for example $666 in Phoenix and $1,155 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 Elios DEA24HOS28230E8?
      ENERGY STAR lists 3 certified combinations for this outdoor unit. The highest-rated ones use ELIOS DUA24HICU230X5, ELIOS DUA24HIDU230X5, ELIOS DE24HIW23230E3.
      What refrigerant does the Elios DEA24HOS28230E8 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 $656/yrYou save $598/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 Elios DEA24HOS28230E8
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $656
      Current system, per year
      $1,254
      You save per year
      $598
      Payback
      15.0 years
      Net after 10 years
      -$3,017

      Cooling $412Heating $243Electricity used: 4,097 kWhSaved vs. a minimum-efficiency heat pump: $309

      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 June 25, 2026. How we use the data.