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iFFALCON vs KeplerX: heat pump ratings compared

Against heat pumps of the same size and type, a typical iFFALCON model beats 49% and a typical KeplerX model 42%. iFFALCON rates higher overall.

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

iFFALCON

49%

of similar heat pumps beaten by its typical model

About average

20 models listed

KeplerX

42%

of similar heat pumps beaten by its typical model

Below average

20 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°FiFFALCON: Beats 28%KeplerX: Beats 34%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FiFFALCON: Beats 51%KeplerX: Beats 41%
  • Winter-long heating efficiencyHSPF2iFFALCON: Beats 54%KeplerX: Beats 52%
  • Summer-long cooling efficiencySEER2iFFALCON: Beats 58%KeplerX: Beats 58%
  • Hot-day cooling efficiencyEER2iFFALCON: Beats 37%KeplerX: Beats 26%

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

    iFFALCON
    70%
    KeplerX
    35%

  • Xcel CC

    iFFALCON
    75%
    KeplerX
    25%

  • CEE Advanced

    iFFALCON
    0%
    KeplerX
    0%

  • ENERGY STAR CC

    iFFALCON
    75%
    KeplerX
    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?

iFFALCON

No ducted, up to 1.5 tons model from iFFALCON.

KeplerX

None of KeplerX’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