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InfinityLiving vs KeplerX: heat pump ratings compared

Against heat pumps of the same size and type, a typical InfinityLiving model beats 51% and a typical KeplerX model 42%. InfinityLiving rates higher overall.

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

InfinityLiving

51%

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°FInfinityLiving: Beats 52%KeplerX: Beats 34%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FInfinityLiving: Beats 44%KeplerX: Beats 41%
  • Winter-long heating efficiencyHSPF2InfinityLiving: Beats 58%KeplerX: Beats 52%
  • Summer-long cooling efficiencySEER2InfinityLiving: Beats 57%KeplerX: Beats 58%
  • Hot-day cooling efficiencyEER2InfinityLiving: Beats 42%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

    InfinityLiving
    75%
    KeplerX
    35%

  • Xcel CC

    InfinityLiving
    65%
    KeplerX
    25%

  • CEE Advanced

    InfinityLiving
    0%
    KeplerX
    0%

  • ENERGY STAR CC

    InfinityLiving
    70%
    KeplerX
    0%

All-around best, ducted 3.5–4.5 tons

Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.

Showing Ducted, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?

InfinityLiving

  1. 1EZ-48Z-M5BInfinityLiving3.5 tons · 43,000 Btu/h · DuctedCold-climate pick, score 70.5Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    79% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.5 (HSPF2)
    Top 10%
    Cooling efficiency
    20.0 (SEER2)
    Top 10%
    Hot-day cooling
    12.0 (EER2)
    Great
    80.2score / 100Heating 71 · Cooling 90
  2. 2EZ-48-HPBwith ducted air handler EZ-48-AHBInfinityLiving4 tons · 48,000 Btu/h · DuctedCold-climate pick, score 68.8Meets 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
    1.90 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.5 (HSPF2)
    Great
    Cooling efficiency
    16.5 (SEER2)
    Good
    Hot-day cooling
    10.5 (EER2)
    Below the middle
    57.1score / 100Heating 69 · Cooling 45
  3. 3EZ-60-HPBwith ducted air handler EZ-60-AHBInfinityLiving4.5 tons · 54,000 Btu/h · DuctedCold-climate pick, score 60.5Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    93% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.0 (HSPF2)
    Good
    Cooling efficiency
    16.0 (SEER2)
    Good
    Hot-day cooling
    10.0 (EER2)
    Below the middle
    49.1score / 100Heating 61 · Cooling 38

KeplerX

  1. 1K18HVH48WD2RKeplerX4 tons · 48,000 Btu/h · DuctedCold-climate pick, score 60.3Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    93% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.0 (HSPF2)
    Good
    Cooling efficiency
    19.0 (SEER2)
    Great
    Hot-day cooling
    11.2 (EER2)
    Good
    65.5score / 100Heating 60 · Cooling 71
  2. 2K18HVH60WD2RKeplerX4.5 tons · 55,000 Btu/h · DuctedCold-climate pick, score 56.9Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    81% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.82 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.0 (HSPF2)
    Good
    Cooling efficiency
    18.5 (SEER2)
    Great
    Hot-day cooling
    10.6 (EER2)
    Below the middle
    57.9score / 100Heating 57 · Cooling 59
  3. 3K20HVH48WD2VN3with ducted air handler K20HVH48WD2HN3KeplerX4 tons · 48,000 Btu/h · DuctedNot a cold-climate pick: keeps 60% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    60% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.35 (COP at 5°F)
    Great
    Winter efficiency
    8.1 (HSPF2)
    Good
    Cooling efficiency
    18.5 (SEER2)
    Great
    Hot-day cooling
    9.7 (EER2)
    Below the middle
    53.8score / 100Heating 59 · Cooling 49

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