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139760_A GF 500 DV Oct. 2017
Vertical Vent Termination
The Jøtul GF 500 DV can be vertically vented through
a ceiling or to a roof termination with the following
guidelines:
The termination should fall within the shaded areas of
the grids depicted in the Vent Matrix, fig. 15, page 11.
Minimum Vertical termination must be no less than 4 ft.
(1.22 m).
Total rise
must not exceed
35 ft.
(10.66 m).
Vent Terminus Clearance:
In no case shall any
discharge opening on the cap be less than 18 in.
(457 mm) vertically or horizontally from any roof
surface or wall. See fig. 16.
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.
Horizontal Overhang
V
ertical W
all
Termination
Cap
18.
min.
Lowest Discharge
Opening
18 min.
18.
min.
Figure 16.
Vertical vent termination height above roof.
