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Armbridge vs K&A: heat pump ratings compared

Against heat pumps of the same size and type, a typical Armbridge model beats 55% and a typical K&A model 30%. Armbridge rates higher overall.

Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated

Armbridge

55%

of similar heat pumps beaten by its typical model

About average

23 models listed

K&A

30%

of similar heat pumps beaten by its typical model

Well below average

23 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°FArmbridge: Beats 46%K&A: Beats 31%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FArmbridge: Beats 50%K&A: Beats 39%
  • Winter-long heating efficiencyHSPF2Armbridge: Beats 62%K&A: Beats 33%
  • Summer-long cooling efficiencySEER2Armbridge: Beats 64%K&A: Beats 27%
  • Hot-day cooling efficiencyEER2Armbridge: Beats 49%K&A: Beats 28%

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

    Armbridge
    57%
    K&A
    17%

  • Xcel CC

    Armbridge
    61%
    K&A
    17%

  • CEE Advanced

    Armbridge
    4%
    K&A
    0%

  • ENERGY STAR CC

    Armbridge
    39%
    K&A
    0%

All-around best, ductless up to 1.5 tons

Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.

Showing Ductless, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

Armbridge

  1. 1AB-GTMH18-230VOArmbridge1.5 tons · 18,000 Btu/h · DuctlessCold-climate pick, score 82.7Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    121% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    11.0 (HSPF2)
    Great
    Cooling efficiency
    23.3 (SEER2)
    Good
    Hot-day cooling
    12.5 (EER2)
    Good
    74.3score / 100Heating 83 · Cooling 66
  2. 2AB-TS09LS-230VOwith ductless indoor unit AB-TS09CT-230VIArmbridge1 ton · 9,000 Btu/h · DuctlessCold-climate pick, score 58.9Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    83% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.90 (COP at 5°F)
    Below the middle
    Winter efficiency
    10.0 (HSPF2)
    Good
    Cooling efficiency
    23.0 (SEER2)
    Good
    Hot-day cooling
    12.5 (EER2)
    Good
    61.4score / 100Heating 59 · Cooling 64
  3. 3AB-GTMR18-230VOArmbridge1.5 tons · 17,700 Btu/h · DuctlessCold-climate pick, score 64.5Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    81% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.0 (HSPF2)
    Good
    Cooling efficiency
    22.0 (SEER2)
    Good
    Hot-day cooling
    12.3 (EER2)
    Good
    59.7score / 100Heating 65 · Cooling 55

K&A

  1. 1MAJESTIC-12K110V-S2with ductless indoor unit MAJESTIC-12K110V-S2K&A1 ton · 11,500 Btu/h · DuctlessNot a cold-climate pick: keeps 69% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    70% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    1.90 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.5 (HSPF2)
    Below the middle
    Cooling efficiency
    17.0 (SEER2)
    Below the middle
    Hot-day cooling
    9.5 (EER2)
    Below the middle
    22.1score / 100Heating 36 · Cooling 8
  2. 2MAJESTIC-18K220V-S2with ductless indoor unit MAJESTIC-18K220V-S2K&A1.5 tons · 17,000 Btu/h · DuctlessNot a cold-climate pick: keeps 57% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    58% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    8.5 (HSPF2)
    Below the middle
    Cooling efficiency
    17.0 (SEER2)
    Below the middle
    Hot-day cooling
    9.5 (EER2)
    Below the middle
    9.5score / 100Heating 11 · Cooling 8
  3. 3MAJESTIC-12K220V-S2with ductless indoor unit MAJESTIC-12K220V-S2K&A1 ton · 11,500 Btu/h · DuctlessNot a cold-climate pick: keeps 60% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    61% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    1.75 (COP at 5°F)
    Below the middle
    Winter efficiency
    8.5 (HSPF2)
    Below the middle
    Cooling efficiency
    17.0 (SEER2)
    Below the middle
    Hot-day cooling
    9.5 (EER2)
    Below the middle
    7.9score / 100Heating 8 · Cooling 8

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.

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