摘要 |
The present invention relates to an installation and at least one ventilation orifice 5 comprising an adjustable closure element 9 controlled by the temperature and the degree of humidity of the air which passes through it, the closure element being formed by a bimetallic strip 9 fixed to the wall of a tube 7 for mounting the said orifice 9 in a ventilation pipe 1, 3 so as to expose the external surface of its curvature to the flow F of air, characterised in that the said bimetallic strip 9 is fitted with a means 11 for supplying extra heat controlled by a detector 14 of the degree of humidity of the air. Application to the ventilating of dwellings. <IMAGE>
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