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 Oct 10, 2026

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%.

MRCOOL all-around best, by size

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

Showing Ducted, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?

16 of MRCOOL’s 19 models of this size and type have all five ratings.

1MULTI6-48HP230C-OMRCOOL4 tons · 45,000 Btu/h · DuctedCold-climate pick, score 77.9Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
81% (Capacity at 5°F vs 47°F)
Good
Efficiency at 5°F
2.10 (COP at 5°F)
Good
Winter efficiency
10.6 (HSPF2)
Top 10%
Cooling efficiency
20.4 (SEER2)
Top 10%
Hot-day cooling
12.0 (EER2)
Great
85.1score / 100Heating 78 · Cooling 92
2DIY-MULTI6-55HP230D-OMRCOOL4 tons · 47,000 Btu/h · DuctedCold-climate pick, score 73.2Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
84% (Capacity at 5°F vs 47°F)
Good
Efficiency at 5°F
2.00 (COP at 5°F)
Good
Winter efficiency
10.5 (HSPF2)
Top 10%
Cooling efficiency
20.0 (SEER2)
Top 10%
Hot-day cooling
12.0 (EER2)
Great
81.6score / 100Heating 73 · Cooling 90
3DIY-MULTI6-48HP230D-OMRCOOL3.5 tons · 43,000 Btu/h · DuctedCold-climate pick, score 70.5Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
79% (Capacity at 5°F vs 47°F)
Good
Efficiency at 5°F
2.00 (COP at 5°F)
Good
Winter efficiency
10.5 (HSPF2)
Top 10%
Cooling efficiency
20.0 (SEER2)
Top 10%
Hot-day cooling
12.0 (EER2)
Great
80.2score / 100Heating 71 · Cooling 90
4UHP18048-Owith ducted air handler UAH18048 - OMRCOOL4 tons · 48,000 Btu/h · DuctedCold-climate pick, score 76.7Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
100% (Capacity at 5°F vs 47°F)
Top 10%
Efficiency at 5°F
2.00 (COP at 5°F)
Good
Winter efficiency
9.5 (HSPF2)
Great
Cooling efficiency
17.5 (SEER2)
Good
Hot-day cooling
12.0 (EER2)
Great
78.4score / 100Heating 77 · Cooling 80
5UHP18060-Owith ducted air handler UAH18060 - OMRCOOL4.5 tons · 54,000 Btu/h · DuctedCold-climate pick, score 70.6Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
98% (Capacity at 5°F vs 47°F)
Top 10%
Efficiency at 5°F
1.90 (COP at 5°F)
Below the middle
Winter efficiency
9.5 (HSPF2)
Great
Cooling efficiency
17.5 (SEER2)
Good
Hot-day cooling
12.0 (EER2)
Great
75.3score / 100Heating 71 · Cooling 80

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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