Skip to content
Rebate.Blue

ACC vs Maestrale: heat pump ratings compared

Against heat pumps of the same size and type, a typical ACC model beats 55% and a typical Maestrale model 64%. Maestrale rates higher overall.

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

ACC

55%

of similar heat pumps beaten by its typical model

About average

4 models listed

Maestrale

64%

of similar heat pumps beaten by its typical model

Well above average

4 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°FACC: Beats 67%Maestrale: Beats 51%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FACC: Beats 77%Maestrale: Beats 65%
  • Winter-long heating efficiencyHSPF2ACC: Beats 55%Maestrale: Beats 55%
  • Summer-long cooling efficiencySEER2ACC: Beats 32%Maestrale: Beats 69%
  • Hot-day cooling efficiencyEER2ACC: Beats 12%Maestrale: Beats 72%

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

    ACC
    0%
    Maestrale
    100%

  • Xcel CC

    ACC
    0%
    Maestrale
    100%

  • CEE Advanced

    ACC
    0%
    Maestrale
    0%

  • ENERGY STAR CC

    ACC
    0%
    Maestrale
    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), the most-listed ducted size. Pick yours above. What size is my system?

ACC

None of ACC’s ducted, 2.5–3 tons models has all five ratings.

Maestrale

No ducted, 2.5–3 tons model from Maestrale.

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