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3.3.4.4 Horizontal wall vent termination
The position of the horizontal vent termination must be positioned in such a way as to meet all local building
codes. Attach the correct length of vertical section pipe and an elbow fitting to the stove. Mark the center line
of the pipe facing the wall (allowing for a 1/4” rise per foot of horizontal, example 10 ft of horizontal would
require a rise of 2.5”).
NOTE: ALLOWING THE VENT PIPE TO SLOPE DOWN TOWARDS THE VENT TERMINATION COULD
CAUSE POOR COMBUSTION AND/OR HIGH TEMPERTURES THAT MAY PRESENT A FIRE HAZARD.
Mark a 10” x 10” square around the center mark (inside dimensions). Cut and frame the exterior wall to except
the wall thimble. Install the wall thimble shield using wood screws. If the wall being penetrated is constructed of
non-combustible material, a 7” hole for the vent pipe is acceptable.
Caution: When installing the terminal on to
vinyl siding, a vinyl siding kit or furring strips
must be used to prevent the terminal from
being recessed into the siding.
When the termination is to be attached to vinyl
siding, apply a bead of non-hardening mastic
around the outside edge to form a seal between
the standoff and the terminal. Attach the terminal
to the exterior wall using four wood screws
through the holes in the corner of the vent
terminal. Complete the terminal installation;
apply a bead of mastic around the outer edge of
the vinyl standoff. With the termination installed
you can now connect the completed vent
assembly by sliding the unit back towards the
wall and carefully inserting the pipe into the
terminal. Before the final connection is made
slide on the decorative wall thimble. Secure the
terminal by securing the termination straps to the
pipe as close to the exterior wall as possible
using sheet metal screws, ensure that the straps
are hidden by the wall thimble cover. Apply
decorative trim if required.
Before sliding the pipe into the termination, ensure that you have slid the decorative wall thimble cover and
penetration heat shield over the pipe.
Slide the pipe into the vent, making sure that at least 11/4” overlap between the pipe and the terminal. Attach
the pipe by attaching two sheet metal screws through the terminal straps and into the pipe. Bend back the
straps towards the terminal making sure they are hidden by the decorative thimble. Finally attach the wall
penetration heat shield and secure with wood screws
Siding
Apply sealant
On four sides
Siding standoff
Wall Thimble
Duravent
Part #942
10”
Screws