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MAXI AIR vs OLMO: heat pump ratings compared

Against heat pumps of the same size and type, a typical MAXI AIR model beats 75% and a typical OLMO model 43%. MAXI AIR rates higher overall.

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

MAXI AIR

75%

of similar heat pumps beaten by its typical model

Well above average

10 models listed

OLMO

43%

of similar heat pumps beaten by its typical model

Below 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°FMAXI AIR: Beats 51%OLMO: Beats 45%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FMAXI AIR: Beats 83%OLMO: Beats 40%
  • Winter-long heating efficiencyHSPF2MAXI AIR: Beats 83%OLMO: Beats 33%
  • Summer-long cooling efficiencySEER2MAXI AIR: Beats 77%OLMO: Beats 45%
  • Hot-day cooling efficiencyEER2MAXI AIR: Beats 77%OLMO: Beats 50%

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

    MAXI AIR
    100%
    OLMO
    91%

  • Xcel CC

    MAXI AIR
    100%
    OLMO
    55%

  • CEE Advanced

    MAXI AIR
    0%
    OLMO
    0%

  • ENERGY STAR CC

    MAXI AIR
    70%
    OLMO
    36%

All-around best, ductless 5 tons and up

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

Showing Ductless, 5 tons and up (57,000 Btu/h and up cooling). What size is my system?

MAXI AIR

No ductless, 5 tons and up model from MAXI AIR.

OLMO

No ductless, 5 tons and up model from OLMO.

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