FIELD: heating.
SUBSTANCE: indoor air ventilation device consists of two air spaces and three louvers for passage of air streams. One of the air spaces directed to the room is filled with a porous air-penetrable material, function as an air-to-air heat exchanger and an air filter. The device is made with the provision for regulating the intensity of the air streams through the louvers in the upper zone, and activation of the ventilation mode using the louvers in the lower zone.
EFFECT: elimination of uncomfortable air streams in the room and reduction of heat losses.
1 dwg
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