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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%

Top cold-climate picks, ducted 2.5–3 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, 2.5–3 tons (27,000–38,999 Btu/h cooling). 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