wood louvers and usually allow more airflow.
When installing the ventilator behind louvers, you should seal off any louver area not covered by the ventilator housing band to
prevent air leakage and recirculation. We suggest you mount the ventilator on a piece of plywood for the best sealing. Allow at
least one square foot of air intake area for every 300 CFM of ventilator capacity.
CAUTION! When installing louvers or shutters, do not remove any existing structural members without providing alternate
support members.
The ventilator can be
mounted flush to a rectangular type louver by fastening through the mounting brackets to the frame of the louver.
On a wide louver, the brackets can first be fastened to the backside of two boards of the appropriate length and these boards
can then be fastened to the frame.
With a narrow louver mounted between studs on 16” centers, two of the brackets can first be mounted to the backside of
boards and the boards and other brackets nailed to the studs.
The ventilator can also be mounted off-
center in an odd-shaped louver.
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