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Bosch vs Pioneer: heat pump ratings compared

Against heat pumps of the same size and type, a typical Bosch model beats 62% and a typical Pioneer model 47%. Bosch rates higher overall.

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

Bosch

62%

of similar heat pumps beaten by its typical model

Well above average

47 models listed

Pioneer

47%

of similar heat pumps beaten by its typical model

About average

46 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°FBosch: Beats 63%Pioneer: Beats 41%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBosch: Beats 62%Pioneer: Beats 43%
  • Winter-long heating efficiencyHSPF2Bosch: Beats 68%Pioneer: Beats 56%
  • Summer-long cooling efficiencySEER2Bosch: Beats 65%Pioneer: Beats 56%
  • Hot-day cooling efficiencyEER2Bosch: Beats 55%Pioneer: Beats 40%

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

    Bosch
    94%
    Pioneer
    74%

  • Xcel CC

    Bosch
    83%
    Pioneer
    70%

  • CEE Advanced

    Bosch
    15%
    Pioneer
    0%

  • ENERGY STAR CC

    Bosch
    85%
    Pioneer
    54%

All-around best, ductless 2.5–3 tons

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

Showing Ductless, 2.5–3 tons (27,000–38,999 Btu/h cooling). What size is my system?

Bosch

  1. 1BMS500-AAM036-1CSXHDBosch3 tons · 36,000 Btu/h · DuctlessCold-climate pick, score 78.0Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    100% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.7 (HSPF2)
    Great
    Cooling efficiency
    23.0 (SEER2)
    Great
    Hot-day cooling
    13.0 (EER2)
    Great
    78.3score / 100Heating 76 · Cooling 81
  2. 2BMS500-AAM027-1CSXHDBosch2.5 tons · 27,000 Btu/h · DuctlessCold-climate pick, score 72.9Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    100% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.5 (HSPF2)
    Great
    Cooling efficiency
    23.0 (SEER2)
    Great
    Hot-day cooling
    12.5 (EER2)
    Great
    74.4score / 100Heating 73 · Cooling 76
  3. 3BMS500-AAM027-1CSXRDBosch2.5 tons · 27,000 Btu/h · DuctlessCold-climate pick, score 41.4Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    70% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    9.5 (HSPF2)
    Below the middle
    Cooling efficiency
    25.0 (SEER2)
    Top 10%
    Hot-day cooling
    13.0 (EER2)
    Great
    66.3score / 100Heating 41 · Cooling 91

Pioneer

  1. 1YN030GLSI24M3GPioneer2.5 tons · 27,000 Btu/h · DuctlessCold-climate pick, score 57.5Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    71% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.5 (HSPF2)
    Great
    Cooling efficiency
    24.0 (SEER2)
    Top 10%
    Hot-day cooling
    12.0 (EER2)
    Good
    65.1score / 100Heating 58 · Cooling 73
  2. 2YN040GLSI24M4GPioneer3 tons · 35,000 Btu/h · DuctlessCold-climate pick, score 52.5Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    72% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.0 (HSPF2)
    Good
    Cooling efficiency
    22.5 (SEER2)
    Good
    Hot-day cooling
    11.1 (EER2)
    Below the middle
    51.1score / 100Heating 53 · Cooling 50
  3. 3YN036GMSI20RUGwith ductless indoor unit CB036GMSILDFHGPioneer3 tons · 36,000 Btu/h · DuctlessCold-climate pick, score 62.8Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    70% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.20 (COP at 5°F)
    Top 10%
    Winter efficiency
    10.3 (HSPF2)
    Good
    Cooling efficiency
    20.0 (SEER2)
    Below the middle
    Hot-day cooling
    9.6 (EER2)
    Below the middle
    43.9score / 100Heating 63 · Cooling 25

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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