53D0419
Designer Series Gas Fireplaces
15
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.
. 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 floor of the
fireplace is 11' (3.4 m) the horizontal run to the face of
the outer wall must not exceed 14' (4.3 m).
Example:
If the vertical dimension from the floor of the
unit is 7’ (.14m), the horizontal run to the face of the
outer wall must not exceed 8
Z\x
' (.6 m).
Sidewall Vent Graph showing the relationship between
vertical and horizontal dimensions for a Direct Vent flue
system.
Figure 16 -
Rear Wall Venting Graph
Horizontal Dimension From the Outside Face of the
Wall to the Center of the Fireplace Vent Flange
Vertical Dimension From the Floor of Unit to the Center of the
Horizontal V
ent Pipe
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
Dimensions in
Feet
20"
FP2248
sidewall vent graph
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
No.
of Caps
D
Min.
C
Max.
1
3’ (914 mm) x D
Actual
6’ (1.8 m)
1 x D
Actual
3
9’ (.7 m)
/3 x D
Actual
4
1’ (3.7 m) 1/ x D
Actual
D
Min.
= # of Termination caps x 3
C
Max.
= ( / # 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. . 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 15 -
Termination Clearances
