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OLMO vs SEA BREEZE+: heat pump ratings compared

Against heat pumps of the same size and type, a typical OLMO model beats 38% and a typical SEA BREEZE+ model 66%. SEA BREEZE+ rates higher overall.

Covers older R-410A heat pumps, no longer installed new. See models sold today · Updated

OLMO

38%

of similar heat pumps beaten by its typical model

Well below average

20 models listed

SEA BREEZE+

66%

of similar heat pumps beaten by its typical model

Well above average

19 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°FOLMO: Beats 44%SEA BREEZE+: Beats 46%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FOLMO: Beats 37%SEA BREEZE+: Beats 68%
  • Winter-long heating efficiencyHSPF2OLMO: Beats 42%SEA BREEZE+: Beats 78%
  • Summer-long cooling efficiencySEER2OLMO: Beats 43%SEA BREEZE+: Beats 73%
  • Hot-day cooling efficiencyEER2OLMO: Beats 27%SEA BREEZE+: Beats 62%

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

    OLMO
    50%
    SEA BREEZE+
    90%

  • Xcel CC

    OLMO
    40%
    SEA BREEZE+
    84%

  • CEE Advanced

    OLMO
    0%
    SEA BREEZE+
    5%

  • ENERGY STAR CC

    OLMO
    40%
    SEA BREEZE+
    90%

Top cold-climate picks, ductless 2 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 Ductless, 2 tons (21,000–26,999 Btu/h cooling). What size is my system?

OLMO

  1. 1OS-MSR24-230VOOLMO2 tons · 24,000 Btu/h · DuctlessKeeps 100% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    100% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.1 (HSPF2)
    Good
    56.8score / 100

SEA BREEZE+

  1. 1HSZ24H424ZMOwith ductless indoor unit CA24H424ZMISEA BREEZE+2 tons · 24,000 Btu/h · DuctlessKeeps 103% of its heat at 5°FMeets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP, ENERGY STAR CC
    Heat kept at 5°F
    103% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    11.5 (HSPF2)
    Top 10%
    86.1score / 100
  2. 2SZ24H424ZMOwith ductless indoor unit FC24H424ZMISEA BREEZE+2 tons · 24,000 Btu/h · DuctlessKeeps 76% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    76% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.20 (COP at 5°F)
    Great
    Seasonal efficiency
    10.3 (HSPF2)
    Great
    74.2score / 100
  3. 3HMZ24H424ZMOSEA BREEZE+2 tons · 24,000 Btu/h · DuctlessKeeps 105% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    105% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.76 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    10.8 (HSPF2)
    Top 10%
    65.4score / 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