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ADP vs DIAL: heat pump ratings compared

Against heat pumps of the same size and type, a typical ADP model beats 49% and a typical DIAL model 58%. DIAL rates higher overall.

Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated

ADP

49%

of similar heat pumps beaten by its typical model

About average

15 models listed

DIAL

58%

of similar heat pumps beaten by its typical model

Above average

7 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°FADP: Beats 35%DIAL: Beats 48%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FADP: Beats 86%DIAL: Beats 38%
  • Winter-long heating efficiencyHSPF2ADP: Beats 51%DIAL: Beats 61%
  • Summer-long cooling efficiencySEER2ADP: Beats 37%DIAL: Beats 75%
  • Hot-day cooling efficiencyEER2ADP: Beats 43%DIAL: Beats 57%

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

    ADP
    27%
    DIAL
    100%

  • Xcel CC

    ADP
    87%
    DIAL
    100%

  • CEE Advanced

    ADP
    7%
    DIAL
    0%

  • ENERGY STAR CC

    ADP
    0%
    DIAL
    0%

Top cold-climate picks, ductless 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 Ductless, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?

ADP

No ductless, up to 1.5 tons model from ADP.

DIAL

  1. 1A2LSZHW12WW230BDJwith ductless indoor unit A2LSZHW12NN230BDJDIAL1 ton · 12,000 Btu/h · DuctlessKeeps 72% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    72% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Great
    Seasonal efficiency
    10.0 (HSPF2)
    Good
    59.5score / 100
  2. 2A2LSZHW12WW115BCJwith ductless indoor unit A2LSZHW12NN115BCJDIAL1 ton · 12,000 Btu/h · DuctlessKeeps 72% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    72% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Great
    Seasonal efficiency
    10.0 (HSPF2)
    Good
    58.9score / 100
  3. 3A2LSZHW09WW115BDJwith ductless indoor unit A2LSZHW09NN115BDJDIAL1 ton · 9,000 Btu/h · DuctlessKeeps 71% of its heat at 5°FMeets 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
    1.90 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.5 (HSPF2)
    Below the middle
    39.5score / 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