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AIRSTAR vs COVAC: heat pump ratings compared

Against heat pumps of the same size and type, a typical AIRSTAR model beats 60% and a typical COVAC model 35%. AIRSTAR rates higher overall.

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

AIRSTAR

60%

of similar heat pumps beaten by its typical model

Well above average

3 models listed

COVAC

35%

of similar heat pumps beaten by its typical model

Well below average

3 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°FAIRSTAR: Beats 34%COVAC: Beats 47%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FAIRSTAR: Beats 53%COVAC: Beats 13%
  • Winter-long heating efficiencyHSPF2AIRSTAR: Beats 58%COVAC: Beats 28%
  • Summer-long cooling efficiencySEER2AIRSTAR: Beats 73%COVAC: Beats 46%
  • Hot-day cooling efficiencyEER2AIRSTAR: Beats 73%COVAC: Beats 36%

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

    AIRSTAR
    100%
    COVAC
    67%

  • Xcel CC

    AIRSTAR
    100%
    COVAC
    33%

  • CEE Advanced

    AIRSTAR
    0%
    COVAC
    0%

  • ENERGY STAR CC

    AIRSTAR
    0%
    COVAC
    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?

AIRSTAR

No ducted, up to 1.5 tons model from AIRSTAR.

COVAC

No ducted, up to 1.5 tons model from COVAC.

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