Skip to content
Rebate.Blue

Acekool vs UA United Appliances: heat pump ratings compared

Against heat pumps of the same size and type, a typical Acekool model beats 36% and a typical UA United Appliances model 27%. Acekool rates higher overall.

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

Acekool

36%

of similar heat pumps beaten by its typical model

Well below average

13 models listed

UA United Appliances

27%

of similar heat pumps beaten by its typical model

Well below average

13 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°FAcekool: Beats 21%UA United Appliances: Beats 16%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FAcekool: Beats 39%UA United Appliances: Beats 43%
  • Winter-long heating efficiencyHSPF2Acekool: Beats 32%UA United Appliances: Beats 27%
  • Summer-long cooling efficiencySEER2Acekool: Beats 46%UA United Appliances: Beats 30%
  • Hot-day cooling efficiencyEER2Acekool: Beats 38%UA United Appliances: Beats 22%

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

    Acekool
    85%
    UA United Appliances
    15%

  • Xcel CC

    Acekool
    62%
    UA United Appliances
    23%

  • CEE Advanced

    Acekool
    0%
    UA United Appliances
    0%

  • ENERGY STAR CC

    Acekool
    31%
    UA United Appliances
    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?

Acekool

  1. 1CMS12-2 PROwith ductless indoor unit CMS12-2 PROAcekool1 ton · 12,000 Btu/h · DuctlessKeeps 76% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    76% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.5 (HSPF2)
    Good
    47.5score / 100
  2. 2CMS9-2 PROwith ductless indoor unit CMS9-2 PROAcekool1 ton · 9,000 Btu/h · DuctlessKeeps 77% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    77% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.2 (HSPF2)
    Good
    45.8score / 100
  3. 3CMS9 PROwith ductless indoor unit CMS9 PROAcekool1 ton · 9,000 Btu/h · DuctlessKeeps 74% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    74% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.0 (HSPF2)
    Below the middle
    39.9score / 100

UA United Appliances

  1. 1UAWH09-DD3D1/Owith ductless indoor unit UAWH09-DD3D1/IUA United Appliances1 ton · 9,000 Btu/h · DuctlessKeeps 79% of its heat at 5°FMeets Xcel CC
    Heat kept at 5°F
    79% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.76 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    8.4 (HSPF2)
    Below the middle
    28.8score / 100
  2. 2UAWH09-AD3D1/Owith ductless indoor unit UAWH09-AD3D1/IUA United Appliances1 ton · 9,100 Btu/h · DuctlessKeeps 74% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    74% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.70 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    8.5 (HSPF2)
    Below the middle
    25.9score / 100
  3. 3UAWH12-DD3D1/Owith ductless indoor unit UAWH12-DD3D1/IUA United AppliancesAlso listed as UAWH12-AD3D1/O1 ton · 11,700 Btu/h · DuctlessKeeps 72% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    72% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.70 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    8.5 (HSPF2)
    Below the middle
    23.9score / 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