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STEALTH vs WABBAN: heat pump ratings compared

Against heat pumps of the same size and type, a typical STEALTH model beats 57% and a typical WABBAN model 50%. STEALTH rates higher overall.

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

STEALTH

57%

of similar heat pumps beaten by its typical model

Above average

42 models listed

WABBAN

50%

of similar heat pumps beaten by its typical model

About average

41 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°FSTEALTH: Beats 45%WABBAN: Beats 35%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FSTEALTH: Beats 61%WABBAN: Beats 60%
  • Winter-long heating efficiencyHSPF2STEALTH: Beats 69%WABBAN: Beats 40%
  • Summer-long cooling efficiencySEER2STEALTH: Beats 61%WABBAN: Beats 49%
  • Hot-day cooling efficiencyEER2STEALTH: Beats 45%WABBAN: Beats 48%

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

    STEALTH
    62%
    WABBAN
    56%

  • Xcel CC

    STEALTH
    48%
    WABBAN
    51%

  • CEE Advanced

    STEALTH
    2%
    WABBAN
    0%

  • ENERGY STAR CC

    STEALTH
    50%
    WABBAN
    0%

Top cold-climate picks, ductless up to 1.5 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, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

STEALTH

  1. 1ACIQ-06ZPL-HP230Bwith ductless indoor unit ACIQ-06W-HH-MCSTEALTH0.5 tons · 6,000 Btu/h · DuctlessKeeps 107% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    107% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.09 (COP at 5°F)
    Great
    Seasonal efficiency
    13.6 (HSPF2)
    Top 10%
    89.3score / 100
  2. 2ACIQ-12ZPL-HP230Bwith ductless indoor unit ACIQ-12FM-HH-MCSTEALTH1 ton · 12,000 Btu/h · DuctlessKeeps 99% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    99% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.99 (COP at 5°F)
    Good
    Seasonal efficiency
    10.7 (HSPF2)
    Great
    77.0score / 100
  3. 3ACIQ-09ZPL-HP230Bwith ductless indoor unit ACIQ-09W-HH-MBSTEALTH1 ton · 9,000 Btu/h · DuctlessKeeps 88% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    88% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.97 (COP at 5°F)
    Good
    Seasonal efficiency
    11.5 (HSPF2)
    Top 10%
    76.2score / 100

WABBAN

  1. 1BB09HQ4D6DO*with ductless indoor unit BB09HQ4D6DIWABBAN1 ton · 9,000 Btu/h · DuctlessKeeps 144% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    144% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.91 (COP at 5°F)
    Good
    Seasonal efficiency
    11.0 (HSPF2)
    Great
    80.1score / 100
  2. 2BB09UW3SXETE00/Owith ductless indoor unit BB09UW3SXETE00/IWABBAN1 ton · 9,000 Btu/h · DuctlessKeeps 78% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    78% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Great
    Seasonal efficiency
    10.5 (HSPF2)
    Great
    75.0score / 100
  3. 3BBM18HX4O*WABBAN1.5 tons · 17,000 Btu/h · DuctlessKeeps 76% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    76% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.21 (COP at 5°F)
    Great
    Seasonal efficiency
    10.0 (HSPF2)
    Good
    73.1score / 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