AIRSTAR vs Quilt: heat pump ratings compared
Against heat pumps of the same size and type, a typical AIRSTAR model beats 60% and a typical Quilt model 76%. Quilt rates higher overall.
Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated
AIRSTAR
60%
of similar heat pumps beaten by its typical model
Well above average3 models listed
Quilt
76%
of similar heat pumps beaten by its typical model
Well above average3 models listed
- Efficiency on a 5°F dayCOP at 5°FAIRSTAR: Beats 34%Quilt: Beats 52%
- Heating power kept at 5°FCapacity at 5°F vs 47°FAIRSTAR: Beats 53%Quilt: Beats 91%
- Winter-long heating efficiencyHSPF2AIRSTAR: Beats 58%Quilt: Beats 91%
- Summer-long cooling efficiencySEER2AIRSTAR: Beats 73%Quilt: Beats 72%
- Hot-day cooling efficiencyEER2AIRSTAR: Beats 73%Quilt: Beats 77%
Average (50%)Dashed outline: the other brand, for comparison
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Rebate standards
CEE 2025
- AIRSTAR
- 100%
- Quilt
- 100%
Xcel CC
- AIRSTAR
- 100%
- Quilt
- 100%
CEE Advanced
- AIRSTAR
- 0%
- Quilt
- 0%
ENERGY STAR CC
- AIRSTAR
- 0%
- Quilt
- 100%
All-around best, ductless 3.5–4.5 tons
Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.
Showing Ductless, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?
AIRSTAR
No ductless, 3.5–4.5 tons model from AIRSTAR.
Quilt
No ductless, 3.5–4.5 tons model from Quilt.
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.
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