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Della vs EMI: heat pump ratings compared
Against heat pumps of the same size and type, a typical Della model beats 48% 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
Della
48%
of similar heat pumps beaten by its typical model
About average94 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°FDella: Beats 43%EMI: Beats 56%
- Heating power kept at 5°FCapacity at 5°F vs 47°FDella: Beats 44%EMI: Beats 63%
- Winter-long heating efficiencyHSPF2Della: Beats 50%EMI: Beats 69%
- Summer-long cooling efficiencySEER2Della: Beats 55%EMI: Beats 61%
- Hot-day cooling efficiencyEER2Della: Beats 41%EMI: Beats 60%
Average (50%)Dashed outline: the other brand, for comparison
Want ranks, distributions per size class and cold-weather curves? Switch to Advanced
Rebate standards
CEE 2025
- Della
- 68%
- EMI
- 87%
Xcel CC
- Della
- 66%
- EMI
- 73%
CEE Advanced
- Della
- 0%
- EMI
- 7%
ENERGY STAR CC
- Della
- 44%
- EMI
- 73%
All-around best, ductless 2.5–3 tons
Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.
Showing Ductless, 2.5–3 tons (27,000–38,999 Btu/h cooling). What size is my system?
Della
- 1048-TPH-MODU-1D4Della2.5 tons · 27,000 Btu/h · DuctlessCold-climate pick, score 68.0Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 96% (Capacity at 5°F vs 47°F)
- Good
- Efficiency at 5°F
- 2.00 (COP at 5°F)
- Good
- Winter efficiency
- 10.5 (HSPF2)
- Great
- Cooling efficiency
- 26.5 (SEER2)
- Top 10%
- Hot-day cooling
- 14.0 (EER2)
- Top 10%
- 2048-TPH-MODU-1D5Della3 tons · 36,000 Btu/h · DuctlessCold-climate pick, score 57.7Meets 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
- 2.00 (COP at 5°F)
- Good
- Winter efficiency
- 10.0 (HSPF2)
- Good
- Cooling efficiency
- 25.0 (SEER2)
- Top 10%
- Hot-day cooling
- 13.6 (EER2)
- Top 10%
- 3048-TLP-MODU-1D3Della2.5 tons · 27,000 Btu/h · DuctlessCold-climate pick, score 57.5Meets CEE 2025, CEE 2026, Xcel CC
- Heat kept at 5°F
- 71% (Capacity at 5°F vs 47°F)
- Below the middle
- Efficiency at 5°F
- 2.00 (COP at 5°F)
- Good
- Winter efficiency
- 10.5 (HSPF2)
- Great
- Cooling efficiency
- 24.0 (SEER2)
- Top 10%
- Hot-day cooling
- 12.0 (EER2)
- Good
EMI
- 1EMXMZ436DAEMI3 tons · 36,000 Btu/h · DuctlessCold-climate pick, score 78.0Meets 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
- Winter efficiency
- 10.7 (HSPF2)
- Great
- Cooling efficiency
- 23.0 (SEER2)
- Great
- Hot-day cooling
- 13.0 (EER2)
- Great
- 2EMXMZ327DAEMI2.5 tons · 27,000 Btu/h · DuctlessCold-climate pick, score 72.9Meets 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
- Winter efficiency
- 10.5 (HSPF2)
- Great
- Cooling efficiency
- 23.0 (SEER2)
- Great
- Hot-day cooling
- 12.5 (EER2)
- Great
- 3ECOSZ130DAwith ductless indoor unit ECOWAL30DAEMI2.5 tons · 30,000 Btu/h · DuctlessNot a cold-climate pick: keeps 65% of its heat at 5°FMeets CEE 2025, CEE 2026
- Heat kept at 5°F
- 66% (Capacity at 5°F vs 47°F)
- Below the middle
- Efficiency at 5°F
- 1.88 (COP at 5°F)
- Below the middle
- Winter efficiency
- 9.2 (HSPF2)
- Below the middle
- Cooling efficiency
- 20.0 (SEER2)
- Below the middle
- Hot-day cooling
- 11.0 (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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