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BULLETPROOF AC vs SHARBO: 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

BULLETPROOF AC

44%

of similar heat pumps beaten by its typical model

Below average

21 models listed

SHARBO

—

of similar heat pumps beaten by its typical model

Not enough rated models

21 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°FBULLETPROOF AC: Beats 55%SHARBO: Not rated
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBULLETPROOF AC: Beats 39%SHARBO: Not rated
  • Winter-long heating efficiencyHSPF2BULLETPROOF AC: Beats 42%SHARBO: Beats 3%
  • Summer-long cooling efficiencySEER2BULLETPROOF AC: Beats 40%SHARBO: Beats 10%
  • Hot-day cooling efficiencyEER2BULLETPROOF AC: Beats 44%SHARBO: Beats 11%

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

    BULLETPROOF AC
    38%
    SHARBO
    0%

  • Xcel CC

    BULLETPROOF AC
    38%
    SHARBO
    0%

  • CEE Advanced

    BULLETPROOF AC
    0%
    SHARBO
    0%

  • ENERGY STAR CC

    BULLETPROOF AC
    0%
    SHARBO
    0%

Top cold-climate picks, ductless 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 Ductless, 2.5–3 tons (27,000–38,999 Btu/h cooling). What size is my system?

BULLETPROOF AC

No ductless, 2.5–3 tons model from BULLETPROOF AC.

SHARBO

None of SHARBO’s ductless, 2.5–3 tons models qualifies.

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