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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 43% and a typical SEA BREEZE+ model 68%. SEA BREEZE+ rates higher overall.

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

OLMO

43%

of similar heat pumps beaten by its typical model

Below average

11 models listed

SEA BREEZE+

68%

of similar heat pumps beaten by its typical model

Well above average

23 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 45%SEA BREEZE+: Beats 65%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FOLMO: Beats 40%SEA BREEZE+: Beats 64%
  • Winter-long heating efficiencyHSPF2OLMO: Beats 33%SEA BREEZE+: Beats 78%
  • Summer-long cooling efficiencySEER2OLMO: Beats 45%SEA BREEZE+: Beats 70%
  • Hot-day cooling efficiencyEER2OLMO: Beats 50%SEA BREEZE+: Beats 65%

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
    91%
    SEA BREEZE+
    91%

  • Xcel CC

    OLMO
    55%
    SEA BREEZE+
    87%

  • CEE Advanced

    OLMO
    0%
    SEA BREEZE+
    0%

  • ENERGY STAR CC

    OLMO
    36%
    SEA BREEZE+
    87%

Top cold-climate picks, ducted up to 1.5 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, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

OLMO

No ducted, up to 1.5 tons model from OLMO.

SEA BREEZE+

  1. 1HSZ18H525ZMOwith ducted air handler D18H525ZMISEA BREEZE+1.5 tons · 17,500 Btu/h · DuctedKeeps 92% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    92% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Good
    Seasonal efficiency
    11.1 (HSPF2)
    Top 10%
    82.3score / 100
  2. 2SZ09H525ZMOwith ducted air handler D09H525ZMISEA BREEZE+1 ton · 9,000 Btu/h · DuctedKeeps 83% of its heat at 5°FMeets 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
    Seasonal efficiency
    11.5 (HSPF2)
    Top 10%
    81.3score / 100
  3. 3HSZ09H525ZMOwith ducted air handler D09H525ZMISEA BREEZE+1 ton · 9,000 Btu/h · DuctedKeeps 120% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    120% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.85 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    13.8 (HSPF2)
    Top 10%
    79.9score / 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