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Coast Air vs Live cool: heat pump ratings compared

Against heat pumps of the same size and type, a typical Coast Air model beats 67% and a typical Live cool model 57%. Coast Air rates higher overall.

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

Coast Air

67%

of similar heat pumps beaten by its typical model

Well above average

4 models listed

Live cool

57%

of similar heat pumps beaten by its typical model

Above average

10 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°FCoast Air: Beats 76%Live cool: Beats 44%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FCoast Air: Beats 29%Live cool: Beats 37%
  • Winter-long heating efficiencyHSPF2Coast Air: Beats 75%Live cool: Beats 57%
  • Summer-long cooling efficiencySEER2Coast Air: Beats 72%Live cool: Beats 74%
  • Hot-day cooling efficiencyEER2Coast Air: Beats 75%Live cool: Beats 63%

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

    Coast Air
    100%
    Live cool
    100%

  • Xcel CC

    Coast Air
    75%
    Live cool
    100%

  • CEE Advanced

    Coast Air
    0%
    Live cool
    0%

  • ENERGY STAR CC

    Coast Air
    75%
    Live cool
    90%

All-around best, ductless 3.5–4.5 tons

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

Showing Ductless, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?

Coast Air

No ductless, 3.5–4.5 tons model from Coast Air.

Live cool

No ductless, 3.5–4.5 tons model from Live cool.

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