Heatilator C40 Owner's Manual page 61

1/2 in. (13mm)
clearance to
combustibles
must be
maintained.
Secure B-Vent to Fan Housing
with sheet metal screws
Can rotate
Return Air Grille
Securely Twist
Install with Louvers
Lock B-Vent to
pointed down
Adapter
2 x 4 wall
Sheet Rock
Bracket
o
180
Leave 1/4" (6mm) clearance from
all 4 outer edges
White
Wire Clamp
Junction Box Removed
Junction Box
Wire Nuts