Horizontal Installation; Vertical Installation - Napoleon GDS25N Installation And Operating Instructions Manual

4.1.1 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 length of the vent shield may be cut shorter
for combustible walls that are less than 8 1/2" thick
but the vent shield must extend the full depth of the
combustible wall.
A. Assemble the shield to the spacer as shown, using the 3
shorter screws supplied.
B. Place the fi restop top so that the vent shield covers the top
of the vent within the opening. Ensure that both spacer
and shield maintain the required clearance to combustibles.
C. Secure the spacer in place using the 4 longer screws supplied. Once the vent pipe is installed in its
fi nal position, apply sealant between the pipe and the fi restop spacer.

4.1.2 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" 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" 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 sealant
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" air space
around the pipe.
WARNING
!
RETURN FLANGE OF THE MOUNTING PLATE.
FIRESTOP
VENT
CAULKING
SHIELD
SPACER
FINISHING
MATERIAL
19
DETERMINE
THE
CORRECT
HEIGHT
20.5A
9"
9"
FIRESTOP
UNDERSIDE OF
JOIST
CAULKING
VENT PIPE
SHIELD
VENT
PIPE
COLLAR
VENT
PIPE
SHIELD
21.1
W415-0547 / G / 12.15.10