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ELIOS vs SLIMAIR: heat pump ratings compared

Against heat pumps of the same size and type, a typical ELIOS model beats 56% and a typical SLIMAIR model 60%. SLIMAIR rates slightly higher overall.

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

ELIOS

56%

of similar heat pumps beaten by its typical model

Above average

48 models listed

SLIMAIR

60%

of similar heat pumps beaten by its typical model

Well above average

48 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°FELIOS: Beats 57%SLIMAIR: Beats 60%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FELIOS: Beats 53%SLIMAIR: Beats 59%
  • Winter-long heating efficiencyHSPF2ELIOS: Beats 65%SLIMAIR: Beats 73%
  • Summer-long cooling efficiencySEER2ELIOS: Beats 59%SLIMAIR: Beats 61%
  • Hot-day cooling efficiencyEER2ELIOS: Beats 49%SLIMAIR: Beats 53%

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

    ELIOS
    88%
    SLIMAIR
    90%

  • Xcel CC

    ELIOS
    81%
    SLIMAIR
    77%

  • CEE Advanced

    ELIOS
    0%
    SLIMAIR
    2%

  • ENERGY STAR CC

    ELIOS
    77%
    SLIMAIR
    79%

All-around best, ducted up to 1.5 tons

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

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

ELIOS

  1. 1ESHEA09C2AN1with ducted air handler GDHRA09C2AS1ELIOS1 ton · 9,000 Btu/h · DuctedCold-climate pick, score 81.3Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    83% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.32 (COP at 5°F)
    Great
    Winter efficiency
    11.5 (HSPF2)
    Top 10%
    Cooling efficiency
    19.7 (SEER2)
    Great
    Hot-day cooling
    13.0 (EER2)
    Great
    80.8score / 100Heating 81 · Cooling 80
  2. 2ESHEA18C2AN1with ducted air handler GDHRA18C2AS1ELIOS1.5 tons · 17,500 Btu/h · DuctedCold-climate pick, score 69.8Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    71% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.41 (COP at 5°F)
    Top 10%
    Winter efficiency
    11.3 (HSPF2)
    Top 10%
    Cooling efficiency
    20.0 (SEER2)
    Great
    Hot-day cooling
    13.3 (EER2)
    Top 10%
    78.4score / 100Heating 70 · Cooling 87
  3. 3EXHZA1832AV1ELIOS1.5 tons · 19,000 Btu/h · DuctedCold-climate pick, score 70.8Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    90% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.0 (HSPF2)
    Great
    Cooling efficiency
    20.0 (SEER2)
    Great
    Hot-day cooling
    13.0 (EER2)
    Great
    77.4score / 100Heating 71 · Cooling 84

SLIMAIR

  1. 1SHC06AH2AGwith ducted air handler SHDL06AC2AGSLIMAIR0.5 tons · 6,500 Btu/h · DuctedCold-climate pick, score 93.5Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    98% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.41 (COP at 5°F)
    Top 10%
    Winter efficiency
    13.8 (HSPF2)
    Top 10%
    Cooling efficiency
    21.4 (SEER2)
    Top 10%
    Hot-day cooling
    14.4 (EER2)
    Top 10%
    95.0score / 100Heating 94 · Cooling 97
  2. 2SHC09AH2AGwith ducted air handler SHDL09AC2AGSLIMAIR1 ton · 9,000 Btu/h · DuctedCold-climate pick, score 80.0Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    112% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.89 (COP at 5°F)
    Below the middle
    Winter efficiency
    12.5 (HSPF2)
    Top 10%
    Cooling efficiency
    21.4 (SEER2)
    Top 10%
    Hot-day cooling
    13.4 (EER2)
    Top 10%
    86.7score / 100Heating 80 · Cooling 94
  3. 3SHC09AE2AGwith ducted air handler SHD09AC2AGSLIMAIR1 ton · 9,000 Btu/h · DuctedCold-climate pick, score 81.3Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    83% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.32 (COP at 5°F)
    Great
    Winter efficiency
    11.5 (HSPF2)
    Top 10%
    Cooling efficiency
    19.7 (SEER2)
    Great
    Hot-day cooling
    13.0 (EER2)
    Great
    80.8score / 100Heating 81 · Cooling 80

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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