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ATK vs AZUR: heat pump ratings compared

Against heat pumps of the same size and type, a typical ATK model beats 47% and a typical AZUR model 56%. AZUR rates higher overall.

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

ATK

47%

of similar heat pumps beaten by its typical model

About average

13 models listed

AZUR

56%

of similar heat pumps beaten by its typical model

Above 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°FATK: Beats 51%AZUR: Beats 44%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FATK: Beats 57%AZUR: Beats 69%
  • Winter-long heating efficiencyHSPF2ATK: Beats 75%AZUR: Beats 39%
  • Summer-long cooling efficiencySEER2ATK: Beats 44%AZUR: Beats 49%
  • Hot-day cooling efficiencyEER2ATK: Beats 20%AZUR: Beats 41%

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

    ATK
    54%
    AZUR
    62%

  • Xcel CC

    ATK
    46%
    AZUR
    62%

  • CEE Advanced

    ATK
    0%
    AZUR
    0%

  • ENERGY STAR CC

    ATK
    0%
    AZUR
    39%

Top cold-climate picks, ducted 2 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, 2 tons (21,000–26,999 Btu/h cooling). What size is my system?

ATK

  1. 1ACI-AUO24SHP-Mwith ducted air handler ACI-AUI24VHEATK2 tons · 24,000 Btu/h · DuctedKeeps 100% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    100% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.91 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    10.0 (HSPF2)
    Great
    69.5score / 100
  2. 2ACI-SDAUO24SHPwith ducted air handler ACI-SDAUI24VHEATK2 tons · 24,000 Btu/h · DuctedKeeps 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
    2.20 (COP at 5°F)
    Good
    Seasonal efficiency
    9.8 (HSPF2)
    Great
    67.6score / 100

AZUR

  1. 1AZ-24HPBwith ducted air handler AH-24BAZUR2 tons · 22,000 Btu/h · DuctedKeeps 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
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    9.0 (HSPF2)
    Good
    57.5score / 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