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Which is better between a hygro A CMV and a hygro B CMV?

Which is better between a hygro A CMV and a hygro B CMV?

Question:

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Answer: the hygro B CMV is more efficient and offers long-term energy savings.

The humidity-controlled single-flow CMV includes humidity sensors that allow it to modulate the air flow according to needs, for high efficiency. The CMV hygro A only contains humidity sensors on the exhaust vents, so these measure the humidity level only in the rooms concerned (kitchen and bathroom). The VMC hygro B, on the other hand, contains additional sensors on the air inlets, which also measure the humidity level in the living rooms (living room and bedrooms). Consequently, the analysis of the hygro B CMV is much more precise and relevant, and provides finer regulation of ventilation. Which of course generates a higher thermal gain. The VMC hygro A is cheaper to buy, but the VMC hygro B offers greater energy savings in the long term. You too, send us your brico question