Skip to content
Rebate.Blue

COOL PRO vs DIAL: heat pump ratings compared

One of these brands has too few models with every rating for an overall score; see each rating below.

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

COOL PRO

—

of similar heat pumps beaten by its typical model

Not enough rated models

7 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°FCOOL PRO: Not ratedDIAL: Beats 48%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FCOOL PRO: Not ratedDIAL: Beats 38%
  • Winter-long heating efficiencyHSPF2COOL PRO: Beats 26%DIAL: Beats 61%
  • Summer-long cooling efficiencySEER2COOL PRO: Beats 23%DIAL: Beats 75%
  • Hot-day cooling efficiencyEER2COOL PRO: Beats 61%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

    COOL PRO
    0%
    DIAL
    100%

  • Xcel CC

    COOL PRO
    0%
    DIAL
    100%

  • CEE Advanced

    COOL PRO
    0%
    DIAL
    0%

  • ENERGY STAR CC

    COOL PRO
    0%
    DIAL
    0%

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?

COOL PRO

No ductless, 2.5–3 tons model from COOL PRO.

DIAL

  1. 1A2LMZ27WW3PBDJDIAL2.5 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
    65.1score / 100Heating 58 · Cooling 73
  2. 2A2LMZ35WW4PBBEDIAL3 tons · 35,000 Btu/h · DuctlessCold-climate pick, score 52.5Meets 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
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.0 (HSPF2)
    Good
    Cooling efficiency
    22.5 (SEER2)
    Good
    Hot-day cooling
    11.1 (EER2)
    Below the middle
    51.1score / 100Heating 53 · Cooling 50

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