Skip to content

ACC vs Satori: heat pump ratings compared

Against heat pumps of the same size and type, a typical ACC model beats 55% and a typical Satori model 48%. ACC 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

Satori

48%

of similar heat pumps beaten by its typical model

About 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%Satori: Beats 23%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FACC: Beats 77%Satori: Beats 38%
  • Winter-long heating efficiencyHSPF2ACC: Beats 55%Satori: Beats 35%
  • Summer-long cooling efficiencySEER2ACC: Beats 32%Satori: Beats 45%
  • Hot-day cooling efficiencyEER2ACC: Beats 12%Satori: Beats 46%

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%
    Satori
    75%
  • Xcel CC

    ACC
    0%
    Satori
    25%
  • CEE Advanced

    ACC
    0%
    Satori
    0%
  • ENERGY STAR CC

    ACC
    0%
    Satori
    0%

Top cold-climate picks, ductless up to 1.5 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.

ACC

No ductless, up to 1.5 tons model from ACC.

Satori

  1. 1STR-H121S/US1with ductless indoor unit STR-H121S/US1Satori1 ton · 12,000 Btu/h · DuctlessKeeps 73% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    73% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.0 (HSPF2)
    Below the middle
    39.1score / 100

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