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MRCOOL heat pumps: how do their ratings compare?

A typical MRCOOL heat pump beats 53% of similar heat pumps (same size and type), which is about average. MRCOOL has 92 heat pump models in this list.

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

Overall score

53%

of similar heat pumps beaten by its typical model

About average

Ranked 17 among brands with a QMID on file. Based on 103 models with every rating.

MRCOOL, rating by ratingStrongest on winter-long heating efficiency (beats 56%), weakest on hot-day cooling efficiency (beats 49%).
  • Efficiency on a 5°F dayCOP at 5°FBeats 50%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBeats 50%
  • Winter-long heating efficiencyHSPF2Beats 56%
  • Summer-long cooling efficiencySEER2Beats 54%
  • Hot-day cooling efficiencyEER2Beats 49%

Average (50%)

Each bar: the share of similar heat pumps a typical model beats on that rating.

Want MRCOOL’s ranks and its models inside every size class? Switch to Advanced

Rebate standards

Share of this brand’s models that meet the efficiency levels rebate programs use. Programs can have other rules too.

  • 67%

    meet CEE 2025 Tier 1, the level many utility rebates use.

    62 models. All brands: 57%.

    See them

  • 58%

    meet Xcel Energy Colorado’s cold-climate rebate levels.

    53 models. All brands: 53%.

    See them

  • 0%

    reach the cold-climate tier: full heating output and a COP of 2.1 or more at 5°F.

    None of its models yet. All brands: 3%.

Top MRCOOL cold-climate picks, by size

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, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

8 of MRCOOL’s 10 models of this size and type qualify.

  1. 1O-HH-09-HP-C-230C-Owith ducted air handler DUCT-09HP-230B-OMRCOOLAlso listed as O-ES-09-HP-C-230C-O11 ton · 9,000 Btu/h · DuctedKeeps 112% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    112% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.89 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    12.5 (HSPF2)
    Top 10%
    80.0score / 100
  2. 2O-ES-18-HP-C-230C-O1with ducted air handler O-18-HP-WMAH-232C-OMRCOOL1.5 tons · 17,000 Btu/h · DuctedKeeps 95% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    95% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    10.5 (HSPF2)
    Great
    78.2score / 100
  3. 3O-HH-18-HP-C-230C-Owith ducted air handler DUCT-18HP-230B-OMRCOOL1.5 tons · 17,000 Btu/h · DuctedKeeps 95% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    95% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    10.5 (HSPF2)
    Great
    78.0score / 100
  4. 4MULTI3-18HP230C-OMRCOOL1.5 tons · 18,000 Btu/h · DuctedKeeps 77% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    77% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.30 (COP at 5°F)
    Great
    Seasonal efficiency
    10.0 (HSPF2)
    Great
    72.6score / 100
  5. 5O-HH-12-HP-C-230C-Owith ducted air handler DUCT-12HP-230B-OMRCOOLAlso listed as O-ES-12-HP-C-230C-O11 ton · 12,000 Btu/h · DuctedKeeps 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
    10.0 (HSPF2)
    Great
    69.7score / 100

These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.

What to do next

The advanced view has MRCOOL’s ranks on each rating, its models inside every size and type, cold-weather curves and its newest certifications.

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