T174-B ventilation shaft

This ventilation well is less deep and not stackable like the T 174-A Ventilation Well, making it particularly suitable for renovations. The ventilation well, also known as a wolf hole, is a plastic prefabricated structure with a fully open back side.

The T174-B ventilation well can be delivered with a plastic, stainless steel, black or CorTen steel grid. Attachment is done using four hanging points. The underside of the ventilation well is partially open so that any rainwater remains at the front of the wall. The grid is attached with two supplied screws. 

The size of the potential pipe and the hole through the wall must be determined by the user. A hole of ø80mm is usually made. Optionally, the T080 renovation tube can be used in combination with this ventilation well to bridge, for example, a cavity. In that case, a hole of ø82mm is recommended for correct placement of the tube.