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ENVIAIR vs Everwell: heat pump ratings compared

Against heat pumps of the same size and type, a typical ENVIAIR model beats 53% and a typical Everwell model 27%. ENVIAIR rates higher overall.

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

ENVIAIR

53%

of similar heat pumps beaten by its typical model

About average

14 models listed

Everwell

27%

of similar heat pumps beaten by its typical model

Well below average

14 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°FENVIAIR: Beats 44%Everwell: Beats 37%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FENVIAIR: Beats 60%Everwell: Beats 20%
  • Winter-long heating efficiencyHSPF2ENVIAIR: Beats 42%Everwell: Beats 28%
  • Summer-long cooling efficiencySEER2ENVIAIR: Beats 57%Everwell: Beats 26%
  • Hot-day cooling efficiencyEER2ENVIAIR: Beats 57%Everwell: Beats 30%

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

    ENVIAIR
    86%
    Everwell
    14%

  • Xcel CC

    ENVIAIR
    86%
    Everwell
    14%

  • CEE Advanced

    ENVIAIR
    14%
    Everwell
    0%

  • ENERGY STAR CC

    ENVIAIR
    0%
    Everwell
    0%

All-around best, ducted 3.5–4.5 tons

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

Showing Ducted, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?

ENVIAIR

  1. 1EMSO21M60ZE230AENVIAIR4.5 tons · 55,000 Btu/h · DuctedNot a cold-climate pick: keeps 56% of its heat at 5°FMeets CEE 2025, CEE 2026
    Heat kept at 5°F
    56% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.30 (COP at 5°F)
    Great
    Winter efficiency
    8.0 (HSPF2)
    Below the middle
    Cooling efficiency
    19.0 (SEER2)
    Great
    Hot-day cooling
    11.7 (EER2)
    Good
    67.6score / 100Heating 55 · Cooling 80
  2. 2EMSO21M48ZE230AENVIAIR4 tons · 48,000 Btu/h · DuctedCold-climate pick, score 50.5Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    75% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.90 (COP at 5°F)
    Below the middle
    Winter efficiency
    8.1 (HSPF2)
    Good
    Cooling efficiency
    18.0 (SEER2)
    Great
    Hot-day cooling
    11.7 (EER2)
    Good
    62.9score / 100Heating 51 · Cooling 75
  3. 3ECSO19A60FLU230Awith ducted air handler ESCI19A-C60FL230AENVIAIR4.5 tons · 52,000 Btu/h · DuctedCold-climate pick, score 63.1Meets CEE 2025, CEE 2026
    Heat kept at 5°F
    100% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.0 (HSPF2)
    Good
    Cooling efficiency
    16.0 (SEER2)
    Good
    Hot-day cooling
    9.8 (EER2)
    Below the middle
    49.1score / 100Heating 63 · Cooling 35

Everwell

None of Everwell’s ducted, 3.5–4.5 tons models has all five ratings.

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