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DUCTLESSAIRE vs J-KU: heat pump ratings compared

Against heat pumps of the same size and type, a typical DUCTLESSAIRE model beats 51% and a typical J-KU model 62%. J-KU rates higher overall.

Covers older R-410A heat pumps, no longer installed new. See models sold today · Updated

DUCTLESSAIRE

51%

of similar heat pumps beaten by its typical model

About average

10 models listed

J-KU

62%

of similar heat pumps beaten by its typical model

Well above average

10 models listed

Rating by ratingEach bar is the share of same-size, same-type heat pumps that a typical model beats, so the two brands compare fairly even if they make different sizes.
  • Efficiency on a 5°F dayCOP at 5°FDUCTLESSAIRE: Beats 47%J-KU: Beats 49%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FDUCTLESSAIRE: Beats 36%J-KU: Beats 66%
  • Winter-long heating efficiencyHSPF2DUCTLESSAIRE: Beats 54%J-KU: Beats 48%
  • Summer-long cooling efficiencySEER2DUCTLESSAIRE: Beats 61%J-KU: Beats 67%
  • Hot-day cooling efficiencyEER2DUCTLESSAIRE: Beats 49%J-KU: Beats 71%

Average (50%)Dashed outline: the other brand, for comparison

Want ranks, distributions per size class and cold-weather curves? Switch to Advanced

Rebate standards

Share of each brand’s models that meet the level. Programs can have other rules too.

  • CEE 2025

    DUCTLESSAIRE
    60%
    J-KU
    100%

  • Xcel CC

    DUCTLESSAIRE
    40%
    J-KU
    90%

  • CEE Advanced

    DUCTLESSAIRE
    0%
    J-KU
    0%

  • ENERGY STAR CC

    DUCTLESSAIRE
    20%
    J-KU
    80%

Top cold-climate picks, ductless 2 tons

Only units that keep at least 70% of their heat at 5°F, ranked on heat kept, efficiency at 5°F and seasonal efficiency (HSPF2), against units their size.

Showing Ductless, 2 tons (21,000–26,999 Btu/h cooling). What size is my system?

DUCTLESSAIRE

None of DUCTLESSAIRE’s ductless, 2 tons models qualifies.

J-KU

  1. 1JKS-24H2HP-M3OJ-KU2 tons · 24,000 Btu/h · DuctlessKeeps 100% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    100% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.84 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.1 (HSPF2)
    Good
    64.4score / 100
  2. 2JKS24HP230V1XCwith ductless indoor unit JKS24HP230V1XEJ-KU2 tons · 23,000 Btu/h · DuctlessKeeps 79% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    79% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.13 (COP at 5°F)
    Great
    Seasonal efficiency
    8.6 (HSPF2)
    Below the middle
    57.8score / 100

These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.

Next steps

The advanced view adds ranks, both brands’ models inside every size class, standout models per rating and cold-weather curves.

Open the advanced view