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MRCOOL heat pumps: how do their ratings compare?

A typical MRCOOL heat pump beats 54% of similar heat pumps (same size and type), which is about average. MRCOOL has 111 heat pump models in this list.

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

Overall score

54%

of similar heat pumps beaten by its typical model

About average

Ranked 15 among brands with a QMID on file. Based on 85 models with every rating.

MRCOOL, rating by ratingStrongest on hot-day cooling efficiency (beats 56%), weakest on heating power kept at 5°f (beats 41%).
  • Efficiency on a 5°F dayCOP at 5°FBeats 49%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBeats 41%
  • Winter-long heating efficiencyHSPF2Beats 51%
  • Summer-long cooling efficiencySEER2Beats 50%
  • Hot-day cooling efficiencyEER2Beats 56%

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.

  • 47%

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

    52 models. All brands: 48%.

    See them

  • 25%

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

    28 models. All brands: 38%.

    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: 1%.

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 Ductless, 2 tons (21,000–26,999 Btu/h cooling). What size is my system?

3 of MRCOOL’s 7 models of this size and type qualify.

  1. 1O-HH-24-HP-C-230Awith ductless indoor unit O-24-HP-WMAH-230BMRCOOLAlso listed as O-HH-24-HP-C-230B2 tons · 24,000 Btu/h · DuctlessKeeps 86% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    86% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.21 (COP at 5°F)
    Top 10%
    Seasonal efficiency
    11.4 (HSPF2)
    Top 10%
    84.5score / 100
  2. 2O-ES-24-HP-C-230Bwith ductless indoor unit O-24-HP-WMAH-230BMRCOOL2 tons · 24,000 Btu/h · DuctlessKeeps 70% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    70% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.04 (COP at 5°F)
    Good
    Seasonal efficiency
    10.0 (HSPF2)
    Good
    60.4score / 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.

Open the advanced view