DIYCOOL vs LG: heat pump ratings compared
Against heat pumps of the same size and type, a typical DIYCOOL model beats 54% and a typical LG model 65%. LG rates higher overall.
Covers older R-410A heat pumps, no longer installed new. See models sold today · Updated
DIYCOOL
54%
of similar heat pumps beaten by its typical model
About average75 models listed
LG
65%
of similar heat pumps beaten by its typical model
Well above average78 models listed
- Efficiency on a 5°F dayCOP at 5°FDIYCOOL: Beats 42%LG: Beats 59%
- Heating power kept at 5°FCapacity at 5°F vs 47°FDIYCOOL: Beats 62%LG: Beats 64%
- Winter-long heating efficiencyHSPF2DIYCOOL: Beats 62%LG: Beats 70%
- Summer-long cooling efficiencySEER2DIYCOOL: Beats 59%LG: Beats 63%
- Hot-day cooling efficiencyEER2DIYCOOL: Beats 43%LG: Beats 69%
Average (50%)Dashed outline: the other brand, for comparison
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Rebate standards
CEE 2025
- DIYCOOL
- 65%
- LG
- 74%
Xcel CC
- DIYCOOL
- 55%
- LG
- 68%
CEE Advanced
- DIYCOOL
- 1%
- LG
- 9%
ENERGY STAR CC
- DIYCOOL
- 45%
- LG
- 45%
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?
DIYCOOL
- 1ES-27Z-M3BDIYCOOL2.5 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
- 2ACIQ-27Z-HH-M3BDIYCOOL2.5 tons · 28,000 Btu/h · DuctedCold-climate pick, score 66.7Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 89% (Capacity at 5°F vs 47°F)
- Great
- Efficiency at 5°F
- 1.80 (COP at 5°F)
- Below the middle
- Winter efficiency
- 9.5 (HSPF2)
- Great
- Cooling efficiency
- 20.0 (SEER2)
- Top 10%
- Hot-day cooling
- 11.7 (EER2)
- Good
- 3ACIQ-36Z-HH-M4BDIYCOOL3 tons · 36,000 Btu/h · DuctedCold-climate pick, score 63.7Meets none of the standards tracked here
- Heat kept at 5°F
- 89% (Capacity at 5°F vs 47°F)
- Great
- Efficiency at 5°F
- 1.70 (COP at 5°F)
- Below the middle
- Winter efficiency
- 10.0 (HSPF2)
- Top 10%
- Cooling efficiency
- 19.0 (SEER2)
- Great
- Hot-day cooling
- 11.7 (EER2)
- Good
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%
These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.
Next steps
The advanced view adds ranks, both brands’ models inside every size class, standout models per rating and cold-weather curves.
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