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IWAE vs TUTTOKOOL: heat pump ratings compared

Against heat pumps of the same size and type, a typical IWAE model beats 52% and a typical TUTTOKOOL model 27%. IWAE rates higher overall.

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

IWAE

52%

of similar heat pumps beaten by its typical model

About average

23 models listed

TUTTOKOOL

27%

of similar heat pumps beaten by its typical model

Well below average

22 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°FIWAE: Beats 26%TUTTOKOOL: Beats 46%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FIWAE: Beats 61%TUTTOKOOL: Beats 14%
  • Winter-long heating efficiencyHSPF2IWAE: Beats 35%TUTTOKOOL: Beats 18%
  • Summer-long cooling efficiencySEER2IWAE: Beats 40%TUTTOKOOL: Beats 21%
  • Hot-day cooling efficiencyEER2IWAE: Beats 36%TUTTOKOOL: Beats 38%

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

    IWAE
    35%
    TUTTOKOOL
    0%

  • Xcel CC

    IWAE
    35%
    TUTTOKOOL
    0%

  • CEE Advanced

    IWAE
    0%
    TUTTOKOOL
    0%

  • ENERGY STAR CC

    IWAE
    26%
    TUTTOKOOL
    0%

Top cold-climate picks, ducted 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.

Showing Ducted, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

IWAE

None of IWAE’s ducted, up to 1.5 tons models qualifies.

TUTTOKOOL

None of TUTTOKOOL’s ducted, up to 1.5 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