9
MOUNTING
STEP 1
Before installing the whole house fan, find a
location in the hallway or staircase central to
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.
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.
Ceiling
Drywall
Ceiling Joist
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