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Custom Comfort vs MAXI AIR: heat pump ratings compared

Against heat pumps of the same size and type, a typical Custom Comfort model beats 71% and a typical MAXI AIR model 75%. MAXI AIR rates slightly higher overall.

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

Custom Comfort

71%

of similar heat pumps beaten by its typical model

Well above average

28 models listed

MAXI AIR

75%

of similar heat pumps beaten by its typical model

Well above average

10 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°FCustom Comfort: Beats 64%MAXI AIR: Beats 51%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FCustom Comfort: Beats 71%MAXI AIR: Beats 83%
  • Winter-long heating efficiencyHSPF2Custom Comfort: Beats 84%MAXI AIR: Beats 83%
  • Summer-long cooling efficiencySEER2Custom Comfort: Beats 69%MAXI AIR: Beats 77%
  • Hot-day cooling efficiencyEER2Custom Comfort: Beats 67%MAXI AIR: Beats 77%

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

    Custom Comfort
    96%
    MAXI AIR
    100%

  • Xcel CC

    Custom Comfort
    100%
    MAXI AIR
    100%

  • CEE Advanced

    Custom Comfort
    4%
    MAXI AIR
    0%

  • ENERGY STAR CC

    Custom Comfort
    100%
    MAXI AIR
    70%

Top cold-climate picks, ducted 2.5–3 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, 2.5–3 tons (27,000–38,999 Btu/h cooling). What size is my system?

Custom Comfort

  1. 1CCOXHBSZ36CHPwith ducted air handler CCOXHBSD36Custom Comfort3 tons · 36,000 Btu/h · DuctedKeeps 90% of its heat at 5°FMeets 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
    2.10 (COP at 5°F)
    Great
    Seasonal efficiency
    11.1 (HSPF2)
    Top 10%
    83.2score / 100
  2. 2CCOXHBMZ536HPCustom Comfort3 tons · 36,000 Btu/h · DuctedKeeps 106% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    106% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    10.4 (HSPF2)
    Top 10%
    82.5score / 100
  3. 3CCOXHBSZ33HPwith ducted air handler CCOXHBAHU36Custom Comfort3 tons · 33,000 Btu/h · DuctedKeeps 97% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    97% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    10.0 (HSPF2)
    Great
    75.8score / 100

MAXI AIR

  1. 1T55-MULTI36E454MAXI AIRAlso listed as T55-MULTI36E4543 tons · 36,000 Btu/h · DuctedKeeps 106% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    106% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    10.4 (HSPF2)
    Top 10%
    82.5score / 100
  2. 2T55-MULTI28E454MAXI AIRAlso listed as T55-MULTI28E4542.5 tons · 28,000 Btu/h · DuctedKeeps 96% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    96% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    9.5 (HSPF2)
    Great
    72.7score / 100
  3. 3MAXS-2430-454with ducted air handler F32-MVBM36B24MAXI AIR2.5 tons · 29,000 Btu/h · DuctedKeeps 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
    1.85 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.6 (HSPF2)
    Great
    68.8score / 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