20303735
15
VWDV70 Series Gas Fireplace
VentInG InstaLLatIon
hoW to use the Vent Graph
The Vent Graph should be read in conjunction with the
following vent installation instructions to determine the
relationship between the vertical and horizontal dimensions
of the vent system.
1. Determine the height of the center of the horizontal vent
pipe exiting through the outer wall. Using this dimen-
sion on the Sidewall Vent Graph below, locate the point
intersecting with the slanted graph line.
2. From the point of this intersection, draw a vertical line
to the bottom of the graph.
3. Select the indicated dimension, and position the fire-
place in accordance with same.
example:
If the vertical dimension from the base of the
fireplace is 11' (3.4 m) the horizontal run to the face of
the outer wall must not exceed 16' (4.9 m).
Sidewall Vent Graph showing the relationship between
vertical and horizontal dimensions for a Direct Vent flue
system.
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
2 4 6 8 10 12 14 16 18 20
eg: A
FP2132
sidewall vent graph
Vent run must not
be in shaded area
Figure 14 -
Rear Wall Venting Graph
Horizontal dimension from the finished outside
wall to the center of the pipe on the fireplace
Vertical Dimension From the Base of Unit to the
Center of the Horizontal V
ent Pipe
Dimensions in Feet
84" (2134 mm)
From Floor to
Center
Outside Corner
Inside Corner
Termination Clearances
Termination clearances for buildings with combustible and noncombustible exteriors.
G =
Combustible
6" (152 mm)
Noncombustible
2" (51 mm)
F =
Combustible
6" (152 mm)
Noncombustible
2" (51 mm)
G
Balcony -
with no side wall
M =
Combustible &
Noncombustible
12" (305 mm)
M
Balcony -
with perpendicular side wall
M =
12" (305 mm)
P =
6” (152 mm)
M
F
Alcove Applications*
C
D
C
E
V
V
Combustible &
Noncombustible
E
= Min. 2” (51 mm) for
non-vinyl sidewalls
Min. 12” (305 mm) for
vinyl sidewalls
O
= 8’ (2.4 m) Min.
O
P
V
V
V
584-15
No.
of Caps
D
Min.
C
Max.
1
3’ (914 mm) 2 x D
Actual
2
6’ (1.8 m)
1 x D
Actual
3
9’ (2.7 m)
2/3 x D
Actual
4
12’ (3.7 m) 1/2 x D
Actual
D
Min.
= # of Termination caps x 3
C
Max.
= (2 / # termination caps) x D
Actual
*note:
Termination in an alcove space (spaces open only on one side and with an overhang) is permitted with the dimensions specified for vinyl or
non-vinyl siding and soffits. 1. There must be a 3’ (914 mm) minimum between termination caps. 2. All mechanical air intakes within 10’ (1 m) of a
termination cap must be a minimum of 3’ (914 mm) below the termination cap. 3. All gravity air intakes within 3’ (914 mm) of a termination cap must
be a minimum of 1’ (305 mm) below the termination cap.
Figure 13 -
Termination
Clearances
