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CADET vs Voltas: heat pump ratings compared

Against heat pumps of the same size and type, a typical CADET model beats 71% and a typical Voltas model 55%. CADET rates higher overall.

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

CADET

71%

of similar heat pumps beaten by its typical model

Well above average

8 models listed

Voltas

55%

of similar heat pumps beaten by its typical model

Above average

8 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°FCADET: Beats 44%Voltas: Beats 82%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FCADET: Beats 85%Voltas: Beats 47%
  • Winter-long heating efficiencyHSPF2CADET: Beats 81%Voltas: Beats 44%
  • Summer-long cooling efficiencySEER2CADET: Beats 68%Voltas: Beats 53%
  • Hot-day cooling efficiencyEER2CADET: Beats 75%Voltas: Beats 51%

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

    CADET
    100%
    Voltas
    100%

  • Xcel CC

    CADET
    100%
    Voltas
    75%

  • CEE Advanced

    CADET
    0%
    Voltas
    0%

  • ENERGY STAR CC

    CADET
    100%
    Voltas
    50%

Top cold-climate picks, ductless 2 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 tons (21,000–26,999 Btu/h cooling). What size is my system?

CADET

  1. 1500006883with ductless indoor unit 500006875CADET2 tons · 23,000 Btu/h · DuctlessKeeps 92% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    92% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    13.3 (HSPF2)
    Top 10%
    77.2score / 100

Voltas

  1. 1CU-VST24HC-WIFIDR25with ductless indoor unit EU- VST24HC-WIFIDR25Voltas2 tons · 24,000 Btu/h · DuctlessKeeps 76% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    76% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.98 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.0 (HSPF2)
    Below the middle
    38.8score / 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