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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 39% and a typical EMI model 58%. EMI rates higher overall.

Covers older R-410A heat pumps, no longer installed new. See models sold today · Updated

Della

39%

of similar heat pumps beaten by its typical model

Well below average

22 models listed

EMI

58%

of similar heat pumps beaten by its typical model

Above average

22 models listed

Rating by ratingEach bar is the share of same-size, same-type heat pumps that a typical model beats, so the two brands compare fairly even if they make different sizes.
  • Efficiency on a 5°F dayCOP at 5°FDella: Beats 42%EMI: Beats 49%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FDella: Beats 37%EMI: Beats 67%
  • Winter-long heating efficiencyHSPF2Della: Beats 23%EMI: Beats 68%
  • Summer-long cooling efficiencySEER2Della: Beats 35%EMI: Beats 57%
  • Hot-day cooling efficiencyEER2Della: Beats 28%EMI: Beats 48%

Average (50%)Dashed outline: the other brand, for comparison

Want ranks, distributions per size class and cold-weather curves? Switch to Advanced

Rebate standards

Share of each brand’s models that meet the level. Programs can have other rules too.

  • CEE 2025

    Della
    55%
    EMI
    68%

  • Xcel CC

    Della
    36%
    EMI
    64%

  • CEE Advanced

    Della
    0%
    EMI
    0%

  • ENERGY STAR CC

    Della
    18%
    EMI
    73%

Top cold-climate picks, ducted up to 1.5 tons

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 Ducted, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

Della

No ducted, up to 1.5 tons model from Della.

EMI

  1. 1MHSD118DACFCwith ducted air handler MHCO24DACFCEMI1.5 tons · 18,000 Btu/h · DuctedKeeps 79% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    79% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.20 (COP at 5°F)
    Great
    Seasonal efficiency
    9.5 (HSPF2)
    Good
    63.7score / 100
  2. 2MHMZ218DAEMI1.5 tons · 19,000 Btu/h · DuctedKeeps 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
    1.83 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.3 (HSPF2)
    Below the middle
    50.4score / 100

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.

Open the advanced view