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iFLOW vs TK'S: heat pump ratings compared

Against heat pumps of the same size and type, a typical iFLOW model beats 43% and a typical TK'S model 48%. TK'S rates higher overall.

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

iFLOW

43%

of similar heat pumps beaten by its typical model

Below average

14 models listed

TK'S

48%

of similar heat pumps beaten by its typical model

About average

15 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°FiFLOW: Beats 44%TK'S: Beats 34%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FiFLOW: Beats 57%TK'S: Beats 31%
  • Winter-long heating efficiencyHSPF2iFLOW: Beats 70%TK'S: Beats 58%
  • Summer-long cooling efficiencySEER2iFLOW: Beats 36%TK'S: Beats 64%
  • Hot-day cooling efficiencyEER2iFLOW: Beats 21%TK'S: Beats 47%

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

    iFLOW
    14%
    TK'S
    67%

  • Xcel CC

    iFLOW
    50%
    TK'S
    20%

  • CEE Advanced

    iFLOW
    0%
    TK'S
    0%

  • ENERGY STAR CC

    iFLOW
    0%
    TK'S
    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.

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

iFLOW

No ductless, up to 1.5 tons model from iFLOW.

TK'S

None of TK'S’s ductless, 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