WEISS PRODUCT FAQ's
Fan Placement
The aim of locating the fan is to get the air to flow across the room, without taking a shortcut and leaving an area unventilated. This means if there is a window, the air shouldn't come in the window then straight to the fan without passing across the room first. It is really a matter of common sense. Put the intake as close to the problem as possible, which normally means over the top of the shower stall.