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Bosch vs ECO AC: heat pump ratings compared

Against heat pumps of the same size and type, a typical Bosch model beats 65% and a typical ECO AC model 59%. Bosch rates higher overall.

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

Bosch

65%

of similar heat pumps beaten by its typical model

Well above average

50 models listed

ECO AC

59%

of similar heat pumps beaten by its typical model

Above average

49 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 55%ECO AC: Beats 47%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBosch: Beats 60%ECO AC: Beats 61%
  • Winter-long heating efficiencyHSPF2Bosch: Beats 69%ECO AC: Beats 64%
  • Summer-long cooling efficiencySEER2Bosch: Beats 70%ECO AC: Beats 65%
  • Hot-day cooling efficiencyEER2Bosch: Beats 58%ECO AC: 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

    Bosch
    76%
    ECO AC
    86%

  • Xcel CC

    Bosch
    64%
    ECO AC
    74%

  • CEE Advanced

    Bosch
    2%
    ECO AC
    0%

  • ENERGY STAR CC

    Bosch
    30%
    ECO AC
    74%

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?

Bosch

  1. 1BMS500-AAS009-1CSXRCwith ductless indoor unit BMS500-AAU006-1AHWXCBosch0.5 tons · 6,000 Btu/h · DuctlessKeeps 107% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    107% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.09 (COP at 5°F)
    Great
    Seasonal efficiency
    13.6 (HSPF2)
    Top 10%
    89.3score / 100
  2. 2BMS500-AAS009-1CSXHCwith ductless indoor unit BMS500-AAU009-1AHWXCBosch1 ton · 9,000 Btu/h · DuctlessKeeps 88% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    88% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.97 (COP at 5°F)
    Good
    Seasonal efficiency
    11.5 (HSPF2)
    Top 10%
    76.2score / 100
  3. 3BMS500-AAS018-1CSXHCwith ductless indoor unit BMS500-AAU018-1AHWXCBosch1.5 tons · 18,000 Btu/h · DuctlessKeeps 100% of its heat at 5°FMeets 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
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    11.3 (HSPF2)
    Top 10%
    67.1score / 100

ECO AC

  1. 1EHH-O9BBwith ductless indoor unit EHH-W09BBECO ACAlso listed as EHH-O09BB1 ton · 9,000 Btu/h · DuctlessKeeps 80% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    80% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.11 (COP at 5°F)
    Great
    Seasonal efficiency
    11.4 (HSPF2)
    Top 10%
    80.2score / 100
  2. 2EHP-O09KBAwith ductless indoor unit EHP-W09KBAECO AC1 ton · 9,000 Btu/h · DuctlessKeeps 144% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    144% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.91 (COP at 5°F)
    Good
    Seasonal efficiency
    11.0 (HSPF2)
    Great
    80.1score / 100
  3. 3EHP-O09BBwith ductless indoor unit EHP-W09BBECO AC1 ton · 9,000 Btu/h · DuctlessKeeps 94% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    94% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.90 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    11.6 (HSPF2)
    Top 10%
    74.8score / 100

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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