How To Use The Vent Graph - Monessen Hearth BDV300 Instruction Manual

VeNtING INstAllAtIoN
teRMINAtIoN cleARANces FoR BuIlDINGs WIth coMBustIBle
AND NoNcoMBustIBle exteRIoRs
G
G=6" (152mm)
V
Inside Corner
G
V
G = Combustible 24"(610mm)
Noncombustible 18"(457mm)
Balcony with No Side Wall
Figure 12 -
Termination Clearances

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 exit-
ing through the outer wall. Using this dimension 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 fireplace 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' (2.14 m), the horizontal run to the face of the outer wall must
not exceed 8 / ' (2.6 m).
1
2
Sidewall Vent Graph showing the relationship between vertical and
horizontal dimensions for a Direct Vent flue system.
54D0700
V
F=6" (152mm)
F
Outside Corner
H
V
J
Combustible &
Noncombustible
H = 24" (610mm)
J = 20" (508mm)
Balcony with Perpendicular
Side Wall
FP1951
termination clearances
BDV Series Direct Vent Gas Fireplace
C = Maximum depth of 48" (1219mm)
for alcove location
D = Minimum width for back wall of
alcove location
Combustible - 38" (965mm)
Noncombustible - 24" (610mm)
E = Clearance from corner in alcove
location
Combustible - 6" (152mm)
Noncombustible - 2" (51mm)
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
20"
2
2 4 6 8 10 12 1 4 16 18 2 0
Horizontal Dimension from the Outside of
Termination to the Back of the Fireplace
Figure 13 -
Rear Wall Venting Graph
FP2248
sidewall vent graph
D
C
V
E
Alcove Location
Dimensions in
Feet
eg: A
15