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Ozone Spirit vs ZAFRO: heat pump ratings compared

Against heat pumps of the same size and type, a typical Ozone Spirit model beats 47% and a typical ZAFRO model 33%. Ozone Spirit rates higher overall.

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

Ozone Spirit

47%

of similar heat pumps beaten by its typical model

About average

19 models listed

ZAFRO

33%

of similar heat pumps beaten by its typical model

Well below 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°FOzone Spirit: Beats 72%ZAFRO: Beats 62%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FOzone Spirit: Beats 15%ZAFRO: Beats 33%
  • Winter-long heating efficiencyHSPF2Ozone Spirit: Beats 14%ZAFRO: Beats 22%
  • Summer-long cooling efficiencySEER2Ozone Spirit: Beats 23%ZAFRO: Beats 33%
  • Hot-day cooling efficiencyEER2Ozone Spirit: Beats 17%ZAFRO: Beats 21%

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

    Ozone Spirit
    16%
    ZAFRO
    63%

  • Xcel CC

    Ozone Spirit
    0%
    ZAFRO
    58%

  • CEE Advanced

    Ozone Spirit
    0%
    ZAFRO
    0%

  • ENERGY STAR CC

    Ozone Spirit
    0%
    ZAFRO
    0%

All-around best, ducted up to 1.5 tons

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

Showing Ducted, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

Ozone Spirit

No ducted, up to 1.5 tons model from Ozone Spirit.

ZAFRO

No ducted, up to 1.5 tons model from ZAFRO.

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