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Stealth Comfort vs ZOKOP: heat pump ratings compared

Against heat pumps of the same size and type, a typical Stealth Comfort model beats 50% and a typical ZOKOP model 34%. Stealth Comfort rates higher overall.

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

Stealth Comfort

50%

of similar heat pumps beaten by its typical model

About average

17 models listed

ZOKOP

34%

of similar heat pumps beaten by its typical model

Well below average

17 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 Comfort: Beats 29%ZOKOP: Beats 22%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FStealth Comfort: Beats 77%ZOKOP: Beats 35%
  • Winter-long heating efficiencyHSPF2Stealth Comfort: Beats 49%ZOKOP: Beats 18%
  • Summer-long cooling efficiencySEER2Stealth Comfort: Beats 54%ZOKOP: Beats 32%
  • Hot-day cooling efficiencyEER2Stealth Comfort: Beats 43%ZOKOP: Beats 24%

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 Comfort
    82%
    ZOKOP
    41%

  • Xcel CC

    Stealth Comfort
    100%
    ZOKOP
    29%

  • CEE Advanced

    Stealth Comfort
    0%
    ZOKOP
    0%

  • ENERGY STAR CC

    Stealth Comfort
    29%
    ZOKOP
    0%

Top cold-climate picks, ducted 3.5–4.5 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 Ducted, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?

Stealth Comfort

  1. 1ACIQ-PHH1748000K000VStealth Comfort4 tons · 47,000 Btu/h · DuctedKeeps 98% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    98% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    8.5 (HSPF2)
    Good
    62.4score / 100
  2. 2SC-4860-HPwith ducted air handler SC-48-AHStealth Comfort4 tons · 48,000 Btu/h · DuctedKeeps 81% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    81% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.0 (HSPF2)
    Good
    58.1score / 100
  3. 3ACIQ-PHH1760000K000VStealth Comfort4.5 tons · 56,000 Btu/h · DuctedKeeps 79% of its heat at 5°FMeets Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    79% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    8.3 (HSPF2)
    Good
    53.0score / 100

ZOKOP

No ducted, 3.5–4.5 tons model from ZOKOP.

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