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Rheem vs York: heat pump ratings compared

Against heat pumps of the same size and type, a typical Rheem model beats 49% and a typical York model 54%. York rates slightly higher overall.

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

Rheem

49%

of similar heat pumps beaten by its typical model

About average

341 models listed

York

54%

of similar heat pumps beaten by its typical model

About average

229 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°FRheem: Beats 59%York: Beats 67%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FRheem: Beats 48%York: Beats 51%
  • Winter-long heating efficiencyHSPF2Rheem: Beats 43%York: Beats 44%
  • Summer-long cooling efficiencySEER2Rheem: Beats 42%York: Beats 40%
  • Hot-day cooling efficiencyEER2Rheem: Beats 40%York: Beats 57%

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

    Rheem
    36%
    York
    53%

  • Xcel CC

    Rheem
    34%
    York
    39%

  • CEE Advanced

    Rheem
    2%
    York
    8%

  • ENERGY STAR CC

    Rheem
    33%
    York
    35%

All-around best, ductless 3.5–4.5 tons

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

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

Rheem

  1. 1ML48HP230MULH-O*Rheem (sold as Mainline)Also listed as ML48HP230MULH - O4 tons · 47,000 Btu/h · DuctlessCold-climate pick, score 73.4Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    96% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Below the middle
    Winter efficiency
    11.0 (HSPF2)
    Top 10%
    Cooling efficiency
    23.0 (SEER2)
    Great
    Hot-day cooling
    12.0 (EER2)
    Good
    75.6score / 100Heating 72 · Cooling 79
  2. 2ML48HP230MUL-O*Rheem (sold as Mainline)Also listed as ML48HP230MUL - O4 tons · 46,000 Btu/h · DuctlessCold-climate pick, score 56.1Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    78% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.05 (COP at 5°F)
    Good
    Winter efficiency
    10.5 (HSPF2)
    Good
    Cooling efficiency
    22.2 (SEER2)
    Great
    Hot-day cooling
    12.3 (EER2)
    Great
    68.6score / 100Heating 56 · Cooling 81
  3. 3ML55HP230MULH-O*Rheem (sold as Mainline)Also listed as ML55HP230MULH - O4.5 tons · 51,000 Btu/h · DuctlessCold-climate pick, score 66.0Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    85% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Below the middle
    Winter efficiency
    10.5 (HSPF2)
    Good
    Cooling efficiency
    22.2 (SEER2)
    Great
    Hot-day cooling
    12.0 (EER2)
    Good
    63.6score / 100Heating 53 · Cooling 74

York

  1. 1YPAS48BUFASDQ1with ductless indoor unit YPCIB48UFA1DQYork4 tons · 45,000 Btu/h · DuctlessCold-climate pick, score 59.1Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    84% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Great
    Winter efficiency
    10.0 (HSPF2)
    Below the middle
    Cooling efficiency
    20.0 (SEER2)
    Below the middle
    Hot-day cooling
    13.0 (EER2)
    Top 10%
    60.5score / 100Heating 59 · Cooling 62
  2. 2YRAMG42N5HAAYorkAlso listed as YRAMG42N5HBA3.5 tons · 42,000 Btu/h · DuctlessNot a cold-climate pick: keeps 65% of its heat at 5°FMeets CEE 2025, CEE 2026
    Heat kept at 5°F
    66% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.2 (HSPF2)
    Below the middle
    Cooling efficiency
    23.0 (SEER2)
    Great
    Hot-day cooling
    12.5 (EER2)
    Top 10%
    53.5score / 100Heating 17 · Cooling 90
  3. 3UMC48CN23STG1York (sold as Guardian)3.5 tons · 42,000 Btu/h · DuctlessCold-climate pick, score 31.6Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    79% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Below the middle
    Winter efficiency
    9.5 (HSPF2)
    Below the middle
    Cooling efficiency
    22.0 (SEER2)
    Good
    Hot-day cooling
    12.0 (EER2)
    Good
    51.3score / 100Heating 32 · Cooling 71

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.

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