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COMFORTSTAR vs RUSSELL: heat pump ratings compared

Against heat pumps of the same size and type, a typical COMFORTSTAR model beats 48% and a typical RUSSELL model 49%. RUSSELL rates slightly higher overall.

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

COMFORTSTAR

48%

of similar heat pumps beaten by its typical model

About average

117 models listed

RUSSELL

49%

of similar heat pumps beaten by its typical model

About average

60 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°FCOMFORTSTAR: Beats 46%RUSSELL: Beats 80%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FCOMFORTSTAR: Beats 44%RUSSELL: Beats 43%
  • Winter-long heating efficiencyHSPF2COMFORTSTAR: Beats 49%RUSSELL: Beats 25%
  • Summer-long cooling efficiencySEER2COMFORTSTAR: Beats 44%RUSSELL: Beats 32%
  • Hot-day cooling efficiencyEER2COMFORTSTAR: Beats 44%RUSSELL: Beats 42%

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

    COMFORTSTAR
    37%
    RUSSELL
    17%

  • Xcel CC

    COMFORTSTAR
    24%
    RUSSELL
    13%

  • CEE Advanced

    COMFORTSTAR
    1%
    RUSSELL
    3%

  • ENERGY STAR CC

    COMFORTSTAR
    22%
    RUSSELL
    22%

Top cold-climate picks, ducted 2 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 Ducted, 2 tons (21,000–26,999 Btu/h cooling). What size is my system?

COMFORTSTAR

  1. 1CZP24CD(O)with ducted air handler CPA-24BCOMFORTSTAR2 tons · 23,000 Btu/h · DuctedKeeps 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
    2.30 (COP at 5°F)
    Great
    Seasonal efficiency
    11.2 (HSPF2)
    Top 10%
    80.3score / 100
  2. 2CHF24CD(O)with ducted air handler CPA-24CCOMFORTSTAR2 tons · 24,000 Btu/h · DuctedKeeps 108% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    108% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    10.5 (HSPF2)
    Top 10%
    79.4score / 100
  3. 3CPR24CD(O)with ducted air handler ACP-24BCOMFORTSTAR2 tons · 24,000 Btu/h · DuctedKeeps 72% of its heat at 5°FMeets 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
    2.20 (COP at 5°F)
    Good
    Seasonal efficiency
    9.8 (HSPF2)
    Great
    67.3score / 100

RUSSELL

  1. 1SP18AZ24AJVCwith indoor coil TCFZ2421HEAAM and furnace S951V0403A17UHURUSSELL2 tons · 22,800 Btu/h · DuctedKeeps 109% of its heat at 5°FMeets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP, ENERGY STAR CC
    Heat kept at 5°F
    109% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Good
    Seasonal efficiency
    8.5 (HSPF2)
    Good
    74.7score / 100
  2. 2RD17AZ24AJ3Nwith indoor coil TCFZ2417MTANM and furnace S802V0754A17UHSRUSSELL2 tons · 22,600 Btu/h · DuctedKeeps 74% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    74% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Good
    Seasonal efficiency
    9.5 (HSPF2)
    Great
    64.0score / 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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