LG vs MRCOOL: heat pump ratings compared
Against heat pumps of the same size and type, a typical LG model beats 65% and a typical MRCOOL model 54%. LG rates higher overall.
Covers older R-410A heat pumps, no longer installed new. See models sold today · Updated
LG
65%
of similar heat pumps beaten by its typical model
Well above average78 models listed
MRCOOL
54%
of similar heat pumps beaten by its typical model
About average111 models listed
- Efficiency on a 5°F dayCOP at 5°FLG: Beats 59%MRCOOL: Beats 49%
- Heating power kept at 5°FCapacity at 5°F vs 47°FLG: Beats 64%MRCOOL: Beats 41%
- Winter-long heating efficiencyHSPF2LG: Beats 70%MRCOOL: Beats 51%
- Summer-long cooling efficiencySEER2LG: Beats 63%MRCOOL: Beats 50%
- Hot-day cooling efficiencyEER2LG: Beats 69%MRCOOL: Beats 56%
Average (50%)Dashed outline: the other brand, for comparison
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Rebate standards
CEE 2025
- LG
- 74%
- MRCOOL
- 47%
Xcel CC
- LG
- 68%
- MRCOOL
- 25%
CEE Advanced
- LG
- 9%
- MRCOOL
- 0%
ENERGY STAR CC
- LG
- 45%
- MRCOOL
- 23%
All-around best, ducted 2.5–3 tons
Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.
Showing Ducted, 2.5–3 tons (27,000–38,999 Btu/h cooling), the most-listed ducted size. Pick yours above. What size is my system?
LG
- 1ARUN038GSS4LG3 tons · 38,000 Btu/h · DuctedCold-climate pick, score 97.0Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 96% (Capacity at 5°F vs 47°F)
- Top 10%
- Efficiency at 5°F
- 3.19 (COP at 5°F)
- Top 10%
- Winter efficiency
- 10.6 (HSPF2)
- Top 10%
- Cooling efficiency
- 20.1 (SEER2)
- Top 10%
- Hot-day cooling
- 14.0 (EER2)
- Top 10%
- 2LMU361HHVLG3 tons · 36,000 Btu/h · DuctedCold-climate pick, score 80.2Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 90% (Capacity at 5°F vs 47°F)
- Top 10%
- Efficiency at 5°F
- 1.93 (COP at 5°F)
- Good
- Winter efficiency
- 10.0 (HSPF2)
- Top 10%
- Cooling efficiency
- 19.0 (SEER2)
- Great
- Hot-day cooling
- 13.5 (EER2)
- Top 10%
- 3LUU360HVwith ducted air handler C74BHMX36C-CLG3 tons · 36,000 Btu/h · DuctedCold-climate pick, score 82.0Meets 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
- 2.08 (COP at 5°F)
- Great
- Winter efficiency
- 9.2 (HSPF2)
- Good
- Cooling efficiency
- 18.2 (SEER2)
- Great
- Hot-day cooling
- 12.2 (EER2)
- Top 10%
MRCOOL
- 1MULTI3-27HP230BMRCOOL2.5 tons · 28,000 Btu/h · DuctedNot a cold-climate pick: keeps 66% of its heat at 5°FMeets CEE 2025, CEE 2026
- Heat kept at 5°F
- 67% (Capacity at 5°F vs 47°F)
- Good
- Efficiency at 5°F
- 2.00 (COP at 5°F)
- Good
- Winter efficiency
- 9.2 (HSPF2)
- Good
- Cooling efficiency
- 21.0 (SEER2)
- Top 10%
- Hot-day cooling
- 11.7 (EER2)
- Good
- 2MHP17L36P-**Awith indoor coil MCDP0048CNPB+TDR and furnace MGD80SE110C5AMRCOOL3 tons · 36,000 Btu/h · DuctedNot a cold-climate pick: keeps 52% of its heat at 5°FMeets CEE 2025, CEE 2026
- Heat kept at 5°F
- 53% (Capacity at 5°F vs 47°F)
- Below the middle
- Efficiency at 5°F
- 2.34 (COP at 5°F)
- Great
- Winter efficiency
- 8.7 (HSPF2)
- Good
- Cooling efficiency
- 16.6 (SEER2)
- Good
- Hot-day cooling
- 13.0 (EER2)
- Top 10%
- 3MHP17L30P-**Awith indoor coil MCDP0042BNPB+TDR and furnace MGD80SE090B4AMRCOOL2.5 tons · 29,800 Btu/h · DuctedNot a cold-climate pick: keeps 51% of its heat at 5°FMeets CEE 2025
- Heat kept at 5°F
- 49% (Capacity at 5°F vs 47°F)
- Below the middle
- Efficiency at 5°F
- 2.34 (COP at 5°F)
- Great
- Winter efficiency
- 8.6 (HSPF2)
- Good
- Cooling efficiency
- 16.2 (SEER2)
- Good
- Hot-day cooling
- 13.5 (EER2)
- Top 10%
These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.
Next steps
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