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Deye vs STEALTH: heat pump ratings compared

Against heat pumps of the same size and type, a typical Deye model beats 66% and a typical STEALTH model 54%. Deye rates higher overall.

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

Deye

66%

of similar heat pumps beaten by its typical model

Well above average

11 models listed

STEALTH

54%

of similar heat pumps beaten by its typical model

About average

11 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°FDeye: Beats 76%STEALTH: Beats 53%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FDeye: Beats 75%STEALTH: Beats 59%
  • Winter-long heating efficiencyHSPF2Deye: Beats 72%STEALTH: Beats 59%
  • Summer-long cooling efficiencySEER2Deye: Beats 58%STEALTH: Beats 62%
  • Hot-day cooling efficiencyEER2Deye: Beats 65%STEALTH: Beats 39%

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

    Deye
    73%
    STEALTH
    73%

  • Xcel CC

    Deye
    73%
    STEALTH
    64%

  • CEE Advanced

    Deye
    0%
    STEALTH
    0%

  • ENERGY STAR CC

    Deye
    73%
    STEALTH
    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?

Deye

  1. 1DWLA4-ACDC1-12KR2(US)with ductless indoor unit DGLA4-ACDC1-12KR2(US)DeyeAlso listed as DWLA4-12KR2(US)1 ton · 11,000 Btu/h · DuctlessCold-climate pick, score 82.4Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    109% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.05 (COP at 5°F)
    Good
    Winter efficiency
    10.8 (HSPF2)
    Great
    Cooling efficiency
    21.5 (SEER2)
    Good
    Hot-day cooling
    12.8 (EER2)
    Good
    70.7score / 100Heating 82 · Cooling 59
  2. 2DWA5-ACDC-18KR2(US)with ductless indoor unit DGA5-ACDC-18KR2(US)Deye1.5 tons · 17,000 Btu/h · DuctlessCold-climate pick, score 60.0Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    74% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.15 (COP at 5°F)
    Great
    Winter efficiency
    9.8 (HSPF2)
    Good
    Cooling efficiency
    21.0 (SEER2)
    Below the middle
    Hot-day cooling
    11.8 (EER2)
    Below the middle
    50.4score / 100Heating 60 · Cooling 41

STEALTH

  1. 1AC-18Z-E-M2STEALTH1.5 tons · 17,700 Btu/h · DuctlessCold-climate pick, score 64.5Meets CEE 2025, CEE 2026, Xcel 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

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