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Dynoaire vs MAJOR HVAC SYSTEMS: heat pump ratings compared
One of these brands has too few models with every rating for an overall score; see each rating below.
Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated
Dynoaire
17%
of similar heat pumps beaten by its typical model
Well below average21 models listed
MAJOR HVAC SYSTEMS
—
of similar heat pumps beaten by its typical model
Not enough rated models21 models listed
- Efficiency on a 5°F dayCOP at 5°FDynoaire: Beats 14%MAJOR HVAC SYSTEMS: Not rated
- Heating power kept at 5°FCapacity at 5°F vs 47°FDynoaire: Beats 6%MAJOR HVAC SYSTEMS: Not rated
- Winter-long heating efficiencyHSPF2Dynoaire: Beats 22%MAJOR HVAC SYSTEMS: Beats 26%
- Summer-long cooling efficiencySEER2Dynoaire: Beats 28%MAJOR HVAC SYSTEMS: Beats 21%
- Hot-day cooling efficiencyEER2Dynoaire: Beats 39%MAJOR HVAC SYSTEMS: Beats 48%
Average (50%)Dashed outline: the other brand, for comparison
Want ranks, distributions per size class and cold-weather curves? Switch to Advanced
Rebate standards
CEE 2025
- Dynoaire
- 0%
- MAJOR HVAC SYSTEMS
- 0%
Xcel CC
- Dynoaire
- 0%
- MAJOR HVAC SYSTEMS
- 0%
CEE Advanced
- Dynoaire
- 0%
- MAJOR HVAC SYSTEMS
- 0%
ENERGY STAR CC
- Dynoaire
- 0%
- MAJOR HVAC SYSTEMS
- 0%
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?
Dynoaire
No ductless, 3.5–4.5 tons model from Dynoaire.
MAJOR HVAC SYSTEMS
No ductless, 3.5–4.5 tons model from MAJOR HVAC SYSTEMS.
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