AIRSTAR vs DWVO: heat pump ratings compared
Against heat pumps of the same size and type, a typical AIRSTAR model beats 60% and a typical DWVO model 22%. AIRSTAR 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
DWVO
22%
of similar heat pumps beaten by its typical model
Well below average3 models listed
- Efficiency on a 5°F dayCOP at 5°FAIRSTAR: Beats 34%DWVO: Beats 14%
- Heating power kept at 5°FCapacity at 5°F vs 47°FAIRSTAR: Beats 53%DWVO: Beats 31%
- Winter-long heating efficiencyHSPF2AIRSTAR: Beats 58%DWVO: Beats 10%
- Summer-long cooling efficiencySEER2AIRSTAR: Beats 73%DWVO: Beats 25%
- Hot-day cooling efficiencyEER2AIRSTAR: Beats 73%DWVO: Beats 25%
Average (50%)Dashed outline: the other brand, for comparison
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Rebate standards
CEE 2025
- AIRSTAR
- 100%
- DWVO
- 33%
Xcel CC
- AIRSTAR
- 100%
- DWVO
- 67%
CEE Advanced
- AIRSTAR
- 0%
- DWVO
- 0%
ENERGY STAR CC
- AIRSTAR
- 0%
- DWVO
- 0%
All-around best, ductless up to 1.5 tons
Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.
Showing Ductless, Up to 1.5 tons (under 21,000 Btu/h cooling). What size is my system?
AIRSTAR
- 1TCL18C25MAIRSTAR1.5 tons · 18,000 Btu/h · DuctlessCold-climate pick, score 68.6Meets CEE 2025, CEE 2026, Xcel CC
- Heat kept at 5°F
- 80% (Capacity at 5°F vs 47°F)
- Good
- Efficiency at 5°F
- 2.00 (COP at 5°F)
- Good
- Winter efficiency
- 10.5 (HSPF2)
- Great
- Cooling efficiency
- 24.0 (SEER2)
- Great
- Hot-day cooling
- 13.0 (EER2)
- Good
- 2TSH12HDI1NAN0T23with ductless indoor unit TSH12IDI1NAN0T23AIRSTARAlso listed as TCL12C25S1 ton · 12,000 Btu/h · DuctlessCold-climate pick, score 37.6Meets CEE 2025, CEE 2026, Xcel CC
- Heat kept at 5°F
- 75% (Capacity at 5°F vs 47°F)
- Below the middle
- Efficiency at 5°F
- 1.80 (COP at 5°F)
- Below the middle
- Winter efficiency
- 9.5 (HSPF2)
- Below the middle
- Cooling efficiency
- 23.0 (SEER2)
- Good
- Hot-day cooling
- 13.0 (EER2)
- Good
DWVO
- 1IMHCAC-0039with ductless indoor unit IMHCAC-0038DWVO1 ton · 12,000 Btu/h · DuctlessCold-climate pick, score 29.6Meets CEE 2025, CEE 2026, Xcel CC
- Heat kept at 5°F
- 70% (Capacity at 5°F vs 47°F)
- Below the middle
- Efficiency at 5°F
- 1.86 (COP at 5°F)
- Below the middle
- Winter efficiency
- 9.0 (HSPF2)
- Below the middle
- Cooling efficiency
- 22.0 (SEER2)
- Good
- Hot-day cooling
- 12.0 (EER2)
- Below the middle
- 2IMHCAC-0043with ductless indoor unit IMHCAC-0042DWVO1 ton · 9,000 Btu/h · DuctlessCold-climate pick, score 20.8Meets Xcel CC
- Heat kept at 5°F
- 78% (Capacity at 5°F vs 47°F)
- Good
- Efficiency at 5°F
- 1.75 (COP at 5°F)
- Below the middle
- Winter efficiency
- 7.5 (HSPF2)
- Below the middle
- Cooling efficiency
- 17.0 (SEER2)
- Below the middle
- Hot-day cooling
- 10.2 (EER2)
- Below the middle
- 3IMHCAC-0041with ductless indoor unit IMHCAC-0040DWVO1 ton · 12,000 Btu/h · DuctlessNot a cold-climate pick: keeps 61% of its heat at 5°FMeets none of the standards tracked here
- Heat kept at 5°F
- 62% (Capacity at 5°F vs 47°F)
- Below the middle
- Efficiency at 5°F
- 1.70 (COP at 5°F)
- Below the middle
- Winter efficiency
- 7.5 (HSPF2)
- Below the middle
- Cooling efficiency
- 17.0 (SEER2)
- Below the middle
- Hot-day cooling
- 9.8 (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
The advanced view adds ranks, both brands’ models inside every size class, standout models per rating and cold-weather curves.
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