MOUNTING
STEP 1
Before installing the whole house fan, find a
location in the hallway or staircase central to
Ceiling Joist
the home. In the attic, mark the corners using
grille plate in between the ceiling joists. Then
press each corner with a screwdriver or drill
until it reaches the other side.
Drywall
Ceiling
STEP 2
Line up the grille plate with the reference
holes made in the attic. Mark around the
grille plate to create a cutout guide.
9