AUX vs York: heat pump ratings compared
Against heat pumps of the same size and type, a typical AUX model beats 49% and a typical York model 54%. York rates slightly higher overall.
Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated
AUX
49%
of similar heat pumps beaten by its typical model
About average189 models listed
York
54%
of similar heat pumps beaten by its typical model
About average238 models listed
- Efficiency on a 5°F dayCOP at 5°FAUX: Beats 60%York: Beats 67%
- Heating power kept at 5°FCapacity at 5°F vs 47°FAUX: Beats 51%York: Beats 53%
- Winter-long heating efficiencyHSPF2AUX: Beats 40%York: Beats 45%
- Summer-long cooling efficiencySEER2AUX: Beats 48%York: Beats 40%
- Hot-day cooling efficiencyEER2AUX: Beats 39%York: Beats 58%
Average (50%)Dashed outline: the other brand, for comparison
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Rebate standards
CEE 2025
- AUX
- 68%
- York
- 54%
Xcel CC
- AUX
- 66%
- York
- 41%
CEE Advanced
- AUX
- 1%
- York
- 8%
ENERGY STAR CC
- AUX
- 35%
- York
- 35%
All-around best, ducted up to 1.5 tons
Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.
Showing Ducted, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?
AUX
- 1ASUM18HPMULOAUX1.5 tons · 18,000 Btu/h · DuctedCold-climate pick, score 75.4Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 106% (Capacity at 5°F vs 47°F)
- Top 10%
- Efficiency at 5°F
- 2.00 (COP at 5°F)
- Good
- Winter efficiency
- 9.8 (HSPF2)
- Good
- Cooling efficiency
- 20.5 (SEER2)
- Top 10%
- Hot-day cooling
- 12.3 (EER2)
- Great
- 2AFEB09HP230V1CO-Uwith ducted air handler AFEB09HP230V1SDAUX1 ton · 9,100 Btu/h · DuctedCold-climate pick, score 53.2Meets CEE 2025, CEE 2026, Xcel CC
- Heat kept at 5°F
- 93% (Capacity at 5°F vs 47°F)
- Great
- Efficiency at 5°F
- 1.85 (COP at 5°F)
- Below the middle
- Winter efficiency
- 9.0 (HSPF2)
- Below the middle
- Cooling efficiency
- 19.5 (SEER2)
- Good
- Hot-day cooling
- 13.0 (EER2)
- Great
- 3ASPR18HPMULOAUX1.5 tons · 17,700 Btu/h · DuctedCold-climate pick, score 56.8Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 78% (Capacity at 5°F vs 47°F)
- Good
- Efficiency at 5°F
- 1.90 (COP at 5°F)
- Below the middle
- Winter efficiency
- 9.5 (HSPF2)
- Good
- Cooling efficiency
- 19.5 (SEER2)
- Good
- Hot-day cooling
- 11.8 (EER2)
- Good
York
- 1YPAS12BLFASDQ1with ducted air handler YPPIMB12UFA1DQYork1 ton · 12,000 Btu/h · DuctedCold-climate pick, score 79.8Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 109% (Capacity at 5°F vs 47°F)
- Top 10%
- Efficiency at 5°F
- 2.00 (COP at 5°F)
- Good
- Winter efficiency
- 10.0 (HSPF2)
- Great
- Cooling efficiency
- 19.0 (SEER2)
- Good
- Hot-day cooling
- 13.9 (EER2)
- Top 10%
- 2YPAS18BLFASDQ1with ducted air handler YPPIMB18UFA1DQYork1.5 tons · 18,000 Btu/h · DuctedCold-climate pick, score 81.0Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 97% (Capacity at 5°F vs 47°F)
- Great
- Efficiency at 5°F
- 2.10 (COP at 5°F)
- Great
- Winter efficiency
- 10.0 (HSPF2)
- Great
- Cooling efficiency
- 19.0 (SEER2)
- Good
- Hot-day cooling
- 12.7 (EER2)
- Great
- 3UMC18CN23STG1York (sold as Guardian)1.5 tons · 18,000 Btu/h · DuctedCold-climate pick, score 78.9Meets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP, ENERGY STAR CC
- Heat kept at 5°F
- 104% (Capacity at 5°F vs 47°F)
- Top 10%
- Efficiency at 5°F
- 2.16 (COP at 5°F)
- Great
- Winter efficiency
- 9.4 (HSPF2)
- Good
- Cooling efficiency
- 17.5 (SEER2)
- Good
- Hot-day cooling
- 12.0 (EER2)
- Good
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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