Rheem heat pumps: how do their ratings compare?

A typical Rheem heat pump beats 49% of similar heat pumps (same size and type), which is about average. Rheem has 341 heat pump models in this list, also sold as Mainline, Ruud, SURE, Weatherking.

Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated Oct 10, 2026

Overall score

49%

of similar heat pumps beaten by its typical model

About average

Ranked 21 among brands with a QMID on file. Based on 295 models with every rating.

Rheem, rating by ratingStrongest on efficiency on a 5°f day (beats 59%), weakest on hot-day cooling efficiency (beats 40%).

Efficiency on a 5°F dayCOP at 5°FBeats 59%
Heating power kept at 5°FCapacity at 5°F vs 47°FBeats 48%
Winter-long heating efficiencyHSPF2Beats 43%
Summer-long cooling efficiencySEER2Beats 42%
Hot-day cooling efficiencyEER2Beats 40%

Average (50%)

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

Want Rheem’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.

36%
meet CEE 2025 Tier 1, the level many utility rebates use.
121 models. All brands: 57%.
See them
34%
meet Xcel Energy Colorado’s cold-climate rebate levels.
115 models. All brands: 53%.
See them
2%
reach the cold-climate tier: full heating output and a COP of 2.1 or more at 5°F.
6 models. All brands: 3%.
See them

Top Rheem 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, 2.5–3 tons (27,000–38,999 Btu/h cooling). What size is my system?

16 of Rheem’s 19 models of this size and type qualify.

1ML36HP230LCMH-Owith ductless indoor unit ML36HP230FLO-IRheem (sold as Mainline)3 tons · 36,400 Btu/h · DuctlessKeeps 104% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
104% (Capacity at 5°F vs 47°F)
Top 10%
Efficiency at 5°F
2.02 (COP at 5°F)
Great
Seasonal efficiency
10.8 (HSPF2)
Top 10%
89.4score / 100
2ML36HP230MULH-O*Rheem (sold as Mainline)Also listed as ML36HP230MULH - O3 tons · 36,000 Btu/h · DuctlessKeeps 103% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
103% (Capacity at 5°F vs 47°F)
Top 10%
Efficiency at 5°F
2.00 (COP at 5°F)
Good
Seasonal efficiency
10.6 (HSPF2)
Great
78.0score / 100
3ML27HP230MULH-O*Rheem (sold as Mainline)Also listed as ML27HP230MULH - O2.5 tons · 27,000 Btu/h · DuctlessKeeps 100% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
100% (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
72.9score / 100
4ML36HP230LCM-Owith ductless indoor unit ML36HP230STDCAS-IRheem (sold as Mainline)3 tons · 36,000 Btu/h · DuctlessKeeps 70% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
70% (Capacity at 5°F vs 47°F)
Below the middle
Efficiency at 5°F
2.20 (COP at 5°F)
Top 10%
Seasonal efficiency
10.3 (HSPF2)
Good
62.8score / 100
5ML33HP230CALH-Owith ductless indoor unit ML33HP230CALH-IRheem (sold as Mainline)3 tons · 33,000 Btu/h · DuctlessKeeps 97% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
97% (Capacity at 5°F vs 47°F)
Good
Efficiency at 5°F
1.98 (COP at 5°F)
Below the middle
Seasonal efficiency
10.5 (HSPF2)
Great
61.3score / 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 Rheem’s ranks on each rating, its models inside every size and type, cold-weather curves and its newest certifications.

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