Installation
14
location. Again, verify that you are not cutting
through rafters or framing members.
Run the Support Box through the roof as
shown in Figure 20, and place it so that
the bottom of the Support Box protrudes at
least 2 inches below the nished ceiling.
Align the Support Box vertically and
horizontally with a level. Temporarily tack the
Support Box in place through the inside walls
and into the roof sheathing.
Using tin snips, cut the Support Box from
the top corners down to the roof line, and
fold the resulting ap over the roof sheathing
(Figure 21). Before nailing it to roof, run a
bead of non-hardening sealant around the
outside top edges of the Support Box so as
to make a seal between the box and the roof.
Clean out any combustible material or debris
from inside the Support Box.
Place the Pipe Clamp, (which comes as a
component of the Support Box) around the top
of the hole in the bottom of the Support Box
(Figure 23).
Connect the necessary amount of pipe
sections to reach the stove at a point where
the Cap will be at least 12-inches above the
roof (Figure 22).
Run the assembled pieces of pellet vent
pipe down through the Clamp of the Support
Box and connect to the appliance with a
Pipe Adapter. Using a level, make slight
adjustments in the position of the appliance
until the pipe is truly vertical. Tighten the bolts
in the Clamp. Note that the overall length of
the pellet vent pipe as assembled, can be no
longer than 42 feet.
Slip the Flashing over the pipe section(s)
protruding through the roof. Secure
the base to the roof with roong nails as shown
in Figure 24. Insure that the roong material
overlaps the top edge of the Flashing (Refer to
Figure 2).
TRIM
2” BELOW
FINISHED
CEILING
CATHEDRAL
CEILING
SUPPORT BOX
LEVEL
12” MINIMUM
USE
NONHARDENING
SEALANT
WHERE STORM
COLLAR SITS
ON FLASHING
CLAMP
TRIM
larger than the dimensions of the Support
Box. (Figure 19). The rectangular hole should
be centered on the small hole which you
drilled through the ceiling to mark the