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ACD vs BROCK: heat pump ratings compared

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

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

ACD

51%

of similar heat pumps beaten by its typical model

About average

25 models listed

BROCK

42%

of similar heat pumps beaten by its typical model

Below average

24 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°FACD: Beats 36%BROCK: Beats 62%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FACD: Beats 69%BROCK: Beats 14%
  • Winter-long heating efficiencyHSPF2ACD: Beats 47%BROCK: Beats 26%
  • Summer-long cooling efficiencySEER2ACD: Beats 53%BROCK: Beats 32%
  • Hot-day cooling efficiencyEER2ACD: Beats 51%BROCK: Beats 68%

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

    ACD
    88%
    BROCK
    17%

  • Xcel CC

    ACD
    88%
    BROCK
    0%

  • CEE Advanced

    ACD
    0%
    BROCK
    0%

  • ENERGY STAR CC

    ACD
    72%
    BROCK
    0%

All-around best, ducted 2.5–3 tons

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

Showing Ducted, 2.5–3 tons (27,000–38,999 Btu/h cooling), the most-listed ducted size. Pick yours above. What size is my system?

ACD

  1. 1MPD30KCH21SB-OACD2.5 tons · 28,400 Btu/h · DuctedCold-climate pick, score 54.7Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    89% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    8.1 (HSPF2)
    Below the middle
    Cooling efficiency
    16.0 (SEER2)
    Good
    Hot-day cooling
    11.0 (EER2)
    Below the middle
    53.1score / 100Heating 55 · Cooling 52
  2. 2MPD42KCH21SB-OACD3 tons · 36,000 Btu/h · DuctedCold-climate pick, score 52.1Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    81% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.84 (COP at 5°F)
    Below the middle
    Winter efficiency
    8.1 (HSPF2)
    Below the middle
    Cooling efficiency
    16.0 (SEER2)
    Good
    Hot-day cooling
    11.0 (EER2)
    Below the middle
    51.8score / 100Heating 52 · Cooling 52
  3. 3MPD36KCH21SB-OACD3 tons · 34,000 Btu/h · DuctedCold-climate pick, score 50.8Meets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    83% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Winter efficiency
    8.1 (HSPF2)
    Below the middle
    Cooling efficiency
    16.0 (SEER2)
    Good
    Hot-day cooling
    11.0 (EER2)
    Below the middle
    51.1score / 100Heating 51 · Cooling 52

BROCK

  1. 1PH7TAN436**AA*with ducted air handler PF4TNBD60LBROCK3 tons · 36,000 Btu/h · DuctedNot a cold-climate pick: keeps 49% of its heat at 5°FMeets CEE 2025, CEE 2026
    Heat kept at 5°F
    50% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.34 (COP at 5°F)
    Great
    Winter efficiency
    8.1 (HSPF2)
    Below the middle
    Cooling efficiency
    17.0 (SEER2)
    Good
    Hot-day cooling
    12.5 (EER2)
    Top 10%
    66.4score / 100Heating 50 · Cooling 83
  2. 2PH5SAN436**AA*with ducted air handler PF4TNXC48LBROCK3 tons · 34,400 Btu/h · DuctedNot a cold-climate pick: keeps 47% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    48% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.12 (COP at 5°F)
    Great
    Winter efficiency
    7.9 (HSPF2)
    Below the middle
    Cooling efficiency
    15.5 (SEER2)
    Below the middle
    Hot-day cooling
    12.5 (EER2)
    Top 10%
    57.1score / 100Heating 44 · Cooling 71
  3. 3PH5SAN430**AA*with ducted air handler FM(C,U)4Z30**ALBROCK2.5 tons · 27,600 Btu/h · DuctedNot a cold-climate pick: keeps 46% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    47% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.20 (COP at 5°F)
    Great
    Winter efficiency
    7.8 (HSPF2)
    Below the middle
    Cooling efficiency
    15.2 (SEER2)
    Below the middle
    Hot-day cooling
    12.5 (EER2)
    Top 10%
    54.7score / 100Heating 44 · Cooling 66

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