DUOHOME vs EMI: heat pump ratings compared
Against heat pumps of the same size and type, a typical DUOHOME model beats 57% and a typical EMI model 62%. EMI rates higher overall.
Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated
DUOHOME
57%
of similar heat pumps beaten by its typical model
Above average39 models listed
EMI
62%
of similar heat pumps beaten by its typical model
Well above average15 models listed
- Efficiency on a 5°F dayCOP at 5°FDUOHOME: Beats 61%EMI: Beats 56%
- Heating power kept at 5°FCapacity at 5°F vs 47°FDUOHOME: Beats 48%EMI: Beats 63%
- Winter-long heating efficiencyHSPF2DUOHOME: Beats 66%EMI: Beats 69%
- Summer-long cooling efficiencySEER2DUOHOME: Beats 63%EMI: Beats 61%
- Hot-day cooling efficiencyEER2DUOHOME: Beats 47%EMI: Beats 60%
Average (50%)Dashed outline: the other brand, for comparison
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Rebate standards
CEE 2025
- DUOHOME
- 87%
- EMI
- 87%
Xcel CC
- DUOHOME
- 74%
- EMI
- 73%
CEE Advanced
- DUOHOME
- 0%
- EMI
- 7%
ENERGY STAR CC
- DUOHOME
- 0%
- EMI
- 73%
All-around best, ductless 2 tons
Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.
Showing Ductless, 2 tons (21,000–26,999 Btu/h cooling). What size is my system?
DUOHOME
- 1DOD30-24HFN10-M1Xwith ductless indoor unit DSAG11D-23HRFN10-M1DUOHOME2 tons · 23,000 Btu/h · DuctlessCold-climate pick, score 77.2Meets CEE 2025, CEE 2026, Xcel CC
- Heat kept at 5°F
- 92% (Capacity at 5°F vs 47°F)
- Great
- Efficiency at 5°F
- 2.00 (COP at 5°F)
- Good
- Winter efficiency
- 13.3 (HSPF2)
- Top 10%
- Cooling efficiency
- 22.3 (SEER2)
- Good
- Hot-day cooling
- 12.5 (EER2)
- Good
- 2DOD30-24HFN10-M1with ductless indoor unit DCD-24HRFN10-M1-DDUOHOME2 tons · 24,000 Btu/h · DuctlessCold-climate pick, score 73.7Meets CEE 2025, CEE 2026, Xcel CC
- Heat kept at 5°F
- 74% (Capacity at 5°F vs 47°F)
- Below the middle
- Efficiency at 5°F
- 2.30 (COP at 5°F)
- Top 10%
- Winter efficiency
- 10.5 (HSPF2)
- Great
- Cooling efficiency
- 22.0 (SEER2)
- Good
- Hot-day cooling
- 12.0 (EER2)
- Good
- 3D4OD30-27HFN10-M1-DDUOHOMEAlso listed as D4OD30-27HFN10-M1D-D2 tons · 26,000 Btu/h · DuctlessCold-climate pick, score 41.1Meets 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
- 2.00 (COP at 5°F)
- Good
- Winter efficiency
- 9.5 (HSPF2)
- Below the middle
- Cooling efficiency
- 23.0 (SEER2)
- Great
- Hot-day cooling
- 12.2 (EER2)
- Good
EMI
- 1EMXSZ124DAwith ductless indoor unit EMXWAL24DAEMI2 tons · 24,000 Btu/h · DuctlessCold-climate pick, score 88.4Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 83% (Capacity at 5°F vs 47°F)
- Good
- Efficiency at 5°F
- 2.34 (COP at 5°F)
- Top 10%
- Winter efficiency
- 13.5 (HSPF2)
- Top 10%
- Cooling efficiency
- 21.0 (SEER2)
- Below the middle
- Hot-day cooling
- 13.0 (EER2)
- Great
- 2ECOSZ124DAwith ductless indoor unit ECOWAL24DAEMI2 tons · 24,000 Btu/h · DuctlessCold-climate pick, score 45.1Meets Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 71% (Capacity at 5°F vs 47°F)
- Below the middle
- Efficiency at 5°F
- 2.11 (COP at 5°F)
- Great
- Winter efficiency
- 9.0 (HSPF2)
- Below the middle
- Cooling efficiency
- 18.5 (SEER2)
- Below the middle
- Hot-day cooling
- 9.6 (EER2)
- Below the middle
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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