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BOSTON AC vs Coast Air: heat pump ratings compared

Against heat pumps of the same size and type, a typical BOSTON AC model beats 56% and a typical Coast Air model 50%. BOSTON AC rates higher overall.

Covers older R-410A heat pumps, no longer installed new. See models sold today · Updated

BOSTON AC

56%

of similar heat pumps beaten by its typical model

Above average

6 models listed

Coast Air

50%

of similar heat pumps beaten by its typical model

About average

6 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°FBOSTON AC: Beats 55%Coast Air: Beats 52%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBOSTON AC: Beats 52%Coast Air: Beats 16%
  • Winter-long heating efficiencyHSPF2BOSTON AC: Beats 45%Coast Air: Beats 46%
  • Summer-long cooling efficiencySEER2BOSTON AC: Beats 65%Coast Air: Beats 54%
  • Hot-day cooling efficiencyEER2BOSTON AC: Beats 59%Coast Air: Beats 48%

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

    BOSTON AC
    100%
    Coast Air
    67%

  • Xcel CC

    BOSTON AC
    83%
    Coast Air
    0%

  • CEE Advanced

    BOSTON AC
    0%
    Coast Air
    0%

  • ENERGY STAR CC

    BOSTON AC
    0%
    Coast Air
    0%

Top cold-climate picks, ductless 5 tons and up

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 Ductless, 5 tons and up (57,000 Btu/h and up cooling). What size is my system?

BOSTON AC

No ductless, 5 tons and up model from BOSTON AC.

Coast Air

No ductless, 5 tons and up model from Coast Air.

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