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CAAIR vs WAYSOS: heat pump ratings compared

One of these brands has too few models with every rating for an overall score; see each rating below.

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

CAAIR

—

of similar heat pumps beaten by its typical model

Not enough rated models

3 models listed

WAYSOS

33%

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°FCAAIR: Beats 66%WAYSOS: Beats 71%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FCAAIR: Not ratedWAYSOS: Beats 28%
  • Winter-long heating efficiencyHSPF2CAAIR: Beats 17%WAYSOS: Beats 14%
  • Summer-long cooling efficiencySEER2CAAIR: Beats 20%WAYSOS: Beats 46%
  • Hot-day cooling efficiencyEER2CAAIR: Beats 18%WAYSOS: Beats 9%

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

    CAAIR
    0%
    WAYSOS
    0%

  • Xcel CC

    CAAIR
    0%
    WAYSOS
    0%

  • CEE Advanced

    CAAIR
    0%
    WAYSOS
    0%

  • ENERGY STAR CC

    CAAIR
    0%
    WAYSOS
    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). What size is my system?

CAAIR

No ducted, 2.5–3 tons model from CAAIR.

WAYSOS

No ducted, 2.5–3 tons model from WAYSOS.

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