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4.1.2 horizontal installation
THE FIRESTOP ASSEMBLY MUST BE INSTALLED WITH THE VENT SHIELD TO THE TOP.
TERMINALS MUST NOT BE RECESSED INTO A WALL OR SIDING MORE THAN THE DEPTH OF THE
This application occurs when venting through
an exterior wall. Having determined the
correct height for the air terminal location,
cut and frame a hole in the exterior wall
as illustrated to accommodate the fi restop
assembly. Dry fi t the fi restop assembly before
proceeding to ensure the brackets on the
rear surface fi t to the inside surface of the
horizontal framing.
The vent shield must be installed to the full
depth of the combustible wall. The length
of the vent shield may be cut shorter for
combustible walls that are less than 8 1/2"
(216mm) thick.
NOTE: Bend the tabs for
reduced side clearances or move the
shield for reduced top clearances.
A. Apply a bead of caulking (not
supplied) around the corner edge of
the inside surface of the fi restop
assembly, fi t the fi restop assembly
to the hole and secure using the
4 screws (supplied in your manual
baggie).
NOTE : Do not fi ll the air space between the fi restop spacer and the exterior wall with any type of
insulating material (i.e., spray foam).
B. Once the vent pipe is installed in
its fi nal position, apply red
fi restop.
4.1.1 vertical installation
This application occurs when venting through a roof. Installation kits for
various roof pitches are available from your authorized dealer / distributor.
See accessories to order specifi c kits required.
A. Determine the air terminal location, cut and frame a square opening as
illustrated in the ceiling and the roof to provide the minimum 1" (25mm)
clearance between the vent pipe and any combustible material. Try to
center the vent pipe location midway between two joists to prevent
having to cut them. Use a plumb bob to line up the center of the
openings. A vent pipe shield will prevent any materials such as
insulation, from fi lling up the 1" (25mm) air space around the pipe.
Nail headers between the joist for extra support.
B. Apply a bead of caulking (not supplied) to the framework or to the
Wolf Steel vent pipe shield plate or equivalent (in the case of a fi nished
ceiling), and secure over the opening in the ceiling. A fi restop must be placed
on the bottom of each framed opening in a roof or ceiling that the venting
system passes through. Apply a bead of caulking all around and place a
fi restop spacer over the vent shield to restrict cold air from being drawn into the
room or around the fi replace. Ensure that both spacer and shield maintain the required
clearance to combustibles. Once the vent pipe is installed in its fi nal position, apply
Mill Pac sealant (W573-0007) (not supplied) or red RTV silicone (W573-0002) (not
supplied) between the pipe and the fi restop assembly.
C. In the attic, slide the vent pipe collar down to cover up the open end of the shield and
tighten. This will prevent any materials, such as insulation, from fi lling up the 1" (25mm)
air space around the pipe.
WARNING
!
RETURN FLANGE OF THE MOUNTING PLATE.
CAULKING
FIRESTOP
RTV silicone sealant (W573-0002) (not supplied) between the pipe and the
(28.3CM)
HEIGHT
VENT
SHIELD
SPACER
CAULKING
FINISHING
MATERIAL
NOTE: The above is for illustration
purposes only. Vents do not always
pass through center of frame.
20.7E
25
11 1/8"
14 1/2"
ADD
ADD
(36.8CM)
WIDTH
DETERMINE
THE
CORRECT
HEIGHT
FIRESTOP
UNDERSIDE OF
JOIST
CAULKING
VENT PIPE
SHIELD
VENT
PIPE
COLLAR
VENT
PIPE
SHIELD
W415-1541 / C / 11.23.17
21.1B
EN
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