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Vertical Vent Termination
This appliance may be vertically vented through a ceiling or to a
roof termination using the following guidelines:
The termination should fall within the shaded areas of the
grids depicted in the Vent Matrix, fig. 6.2, page 10.
Maximum Horizontal run is 20 ft. See Fig. 6.2 for related
termination zone limitations.
Minimum Vertical Termination is 6 ft.
Total run, including offsets, must not exceed 35 ft.
Vent Terminus Clearance: In no case shall any discharge
opening on the cap be less than 18 in. horizontally from the roof
surface. See fig. 6.5.
Steep roofs, nearby trees, and predominantly windy
conditions can contribute to poor draft and/or promote
draft reversal. Increasing the height of the vent may alleviate
these conditions.
Use Wall Straps to support an offset pipe run at intervals of
three feet to avoid excessive stress on the offsets.
A firestop is required at every floor. The floor opening
should be framed to 10" X 10" inside dimension.
Any venting that is exposed in living space above the first
floor must be enclosed. Always maintain the required
1" clearance from all sides of the vertical vent system.
Insulation in attic space must be retained by an insulation
barrier.
NOTE FOR CO-LINEAR INSTALLATIONS:
WHEN LIGHTING THE APPLIANCE FOR THE
FIRST TIME AFTER REMOVING THE FRONT
GLASS YOU WILL NEED TO LIGHT PILOT AND
LEAVE UNIT FOR 10-15 MINUTES TO ALLOW
FOR DRAFT TO BE ESTABLISHED.
Horizontal Overhang
18”.
min.
Termination
Cap
18” min.
Figure 6.5.
Vertical vent termination height above roof.
18”.
min.
Lowest Discharge
Opening
Note: Co-linear
installations of any
height are set at
Restriction A. If
overactive flame is
observed, then B. C & D
are not advised.
46 3/4”
118.7cm
Figure 6.6. Co-linear Termination is permitted with 2 foot (62
cm) maximum horizontal run (A).
RE-INSTALL THE TOP PLATE BEFORE
CONNECTING VENT TO THE STOVE.
Horizontal Termination
Any horizontal termination must fall within the shaded
portion of the vent window matrix shown in fig. 6.2.
Any horizontally-terminated vent run must include a
minimum 24" vertical rise. See figs. 6.8, 6.9, 6.10.
Horizontal termination requirements:
1) Maximum vertical run is 35 ft.
2) Maximum horizontal run is 20 ft.
ELBOW RESTRICTION: Up to two 45° elbows or one 90°
elbow may be used in addition to the first elbow.
The horizontal run must be reduced by 5 feet for each
additional elbow, whether 45° or 90°.
Wall Cut-out Opening: A minimum 10" X 10" square hole is
required for proper pipe clearances through a combustible
wall.
Horizontal Vent Pipe Clearance to Combustible Material:
130112_Rev 2 GF 160 DV 2/22
A
11
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