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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 average

21 models listed

MAJOR HVAC SYSTEMS

—

of similar heat pumps beaten by its typical model

Not enough rated models

21 models listed

Rating by ratingEach bar is the share of same-size, same-type heat pumps that a typical model beats, so the two brands compare fairly even if they make different sizes.
  • 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

Share of each brand’s models that meet the level. Programs can have other rules too.

  • 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%

Top cold-climate picks, ducted 2.5–3 tons

Only units that keep at least 70% of their heat at 5°F, ranked on heat kept, efficiency at 5°F and seasonal efficiency (HSPF2), against units their size.

Showing Ducted, 2.5–3 tons (27,000–38,999 Btu/h cooling), the most-listed ducted size. Pick yours above. What size is my system?

Dynoaire

None of Dynoaire’s ducted, 2.5–3 tons models qualifies.

MAJOR HVAC SYSTEMS

None of MAJOR HVAC SYSTEMS’s ducted, 2.5–3 tons models qualifies.

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