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AURUS vs Cowsar: heat pump ratings compared

Against heat pumps of the same size and type, a typical AURUS model beats 32% and a typical Cowsar model 34%. Cowsar rates slightly higher overall.

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

AURUS

32%

of similar heat pumps beaten by its typical model

Well below average

12 models listed

Cowsar

34%

of similar heat pumps beaten by its typical model

Well below average

12 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°FAURUS: Beats 41%Cowsar: Beats 61%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FAURUS: Beats 21%Cowsar: Beats 28%
  • Winter-long heating efficiencyHSPF2AURUS: Beats 35%Cowsar: Beats 25%
  • Summer-long cooling efficiencySEER2AURUS: Beats 31%Cowsar: Beats 36%
  • Hot-day cooling efficiencyEER2AURUS: Beats 27%Cowsar: Beats 23%

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

    AURUS
    33%
    Cowsar
    75%

  • Xcel CC

    AURUS
    33%
    Cowsar
    50%

  • CEE Advanced

    AURUS
    0%
    Cowsar
    0%

  • ENERGY STAR CC

    AURUS
    33%
    Cowsar
    0%

All-around best, ducted 2.5–3 tons

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

Showing Ducted, 2.5–3 tons (27,000–38,999 Btu/h cooling), the most-listed ducted size. Pick yours above. What size is my system?

AURUS

No ducted, 2.5–3 tons model from AURUS.

Cowsar

No ducted, 2.5–3 tons model from Cowsar.

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