ACIQ vs AUX: heat pump ratings compared
Against heat pumps of the same size and type, a typical ACIQ model beats 53% and a typical AUX model 49%. ACIQ rates slightly higher overall.
Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated
ACIQ
53%
of similar heat pumps beaten by its typical model
About average184 models listed
AUX
49%
of similar heat pumps beaten by its typical model
About average189 models listed
- Efficiency on a 5°F dayCOP at 5°FACIQ: Beats 56%AUX: Beats 60%
- Heating power kept at 5°FCapacity at 5°F vs 47°FACIQ: Beats 46%AUX: Beats 51%
- Winter-long heating efficiencyHSPF2ACIQ: Beats 55%AUX: Beats 40%
- Summer-long cooling efficiencySEER2ACIQ: Beats 52%AUX: Beats 48%
- Hot-day cooling efficiencyEER2ACIQ: Beats 55%AUX: Beats 39%
Average (50%)Dashed outline: the other brand, for comparison
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Rebate standards
CEE 2025
- ACIQ
- 58%
- AUX
- 68%
Xcel CC
- ACIQ
- 49%
- AUX
- 66%
CEE Advanced
- ACIQ
- 2%
- AUX
- 1%
ENERGY STAR CC
- ACIQ
- 37%
- AUX
- 35%
All-around best, ducted 2 tons
Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.
Showing Ducted, 2 tons (21,000–26,999 Btu/h cooling). What size is my system?
ACIQ
- 1B5H3V24*K*AAA*with ducted air handler FCMA5B36L0C*+WALLCONACIQ2 tons · 22,800 Btu/h · DuctedCold-climate pick, score 70.2Meets 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
- 2.06 (COP at 5°F)
- Good
- Winter efficiency
- 10.5 (HSPF2)
- Top 10%
- Cooling efficiency
- 21.5 (SEER2)
- Top 10%
- Hot-day cooling
- 13.0 (EER2)
- Top 10%
- 2ACIQ-24ZS-HP230Cwith ducted air handler ACIQ-24CD-HH-MCACIQ2 tons · 24,000 Btu/h · DuctedCold-climate pick, score 77.3Meets 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
- 2.30 (COP at 5°F)
- Great
- Winter efficiency
- 11.0 (HSPF2)
- Top 10%
- Cooling efficiency
- 19.0 (SEER2)
- Great
- Hot-day cooling
- 12.5 (EER2)
- Great
- 3N5H9V24*K*AAA*with indoor coil EA*5X37M21A and furnace *80VSL1102122BACIQ2 tons · 24,800 Btu/h · DuctedCold-climate pick, score 73.1Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 86% (Capacity at 5°F vs 47°F)
- Great
- Efficiency at 5°F
- 2.00 (COP at 5°F)
- Good
- Winter efficiency
- 10.0 (HSPF2)
- Great
- Cooling efficiency
- 19.0 (SEER2)
- Great
- Hot-day cooling
- 14.0 (EER2)
- Top 10%
AUX
- 1ASUM24HPMULOAUX2 tons · 24,000 Btu/h · DuctedCold-climate pick, score 62.9Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 83% (Capacity at 5°F vs 47°F)
- Good
- Efficiency at 5°F
- 1.90 (COP at 5°F)
- Below the middle
- Winter efficiency
- 10.0 (HSPF2)
- Great
- Cooling efficiency
- 21.0 (SEER2)
- Top 10%
- Hot-day cooling
- 13.0 (EER2)
- Top 10%
- 2ASPR24HPMULOAUX2 tons · 24,000 Btu/h · DuctedCold-climate pick, score 59.1Meets 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
- Winter efficiency
- 9.5 (HSPF2)
- Good
- Cooling efficiency
- 20.5 (SEER2)
- Top 10%
- Hot-day cooling
- 11.8 (EER2)
- Good
- 3AHU24HPV1BOwith ducted air handler AHU24HPV1BIAUX2 tons · 24,000 Btu/h · DuctedCold-climate pick, score 59.4Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 92% (Capacity at 5°F vs 47°F)
- Great
- Efficiency at 5°F
- 1.80 (COP at 5°F)
- Below the middle
- Winter efficiency
- 9.5 (HSPF2)
- Good
- Cooling efficiency
- 19.0 (SEER2)
- Great
- Hot-day cooling
- 11.0 (EER2)
- Below the middle
These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.
Next steps
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