74D3001
14
DVBL7 Series Gas Fireplace
VentInG InStaLLatIon InFormatIon
twISt LocK pIpeS
When using twist lock pipe it is not necessary to use
sealant on the joints.
To join twist lock pipes together, simply align the beads
of the male end with the grooves of the female end,
twisting the pipe until the flange on the female end
contacts external flange on the male end. It is recom-
mended that you secure the joints with three (3) sheet
metal screws, however, this is not mandatory with twist
lock pipe.
Figure 9
note: Sealant is not required to assemble fireplace
venting. Do not use silicone sealant at the inner flue
exhaust connections.
To make it easier to assembly the joints, we suggest put-
ting a lubricant (Vaseline or similar) on the male end of the
twist lock pipe prior to assembly.
TWL100
Twist Lock Pipe
3/12/99 djt
Male End
Female End
Screw Holes
TWL100
Figure 9 -
Twist-lock Pipe Joints
how to uSe the Vent Graph
The Vent Graph should be read in conjunction with the
following vent installation instructions to determine the re-
lationship 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 di-
mension on the Sidewall Vent Graph,
Figure 10
, 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 a:
If the vertical dimension from the floor of the unit is 11’ (3.4
m) the horizontal run to the face of the outer wall must not
exceed 14’ (4.3 m).
exampLe B:
If the vertical dimension from the floor of the unit is 7’ (.1
m), the horizontal run to the face of the outer wall must not
exceed 7’ (.1 m).
refer to
Page 18
for requirements for snorkels.
FP2337
sidewall vent graph
2 4 6 8 10 12 14 16 18 20
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
Figure 10 -
Rear Wall Venting Graph
Horizontal dimension from the finished outside wall
to the center of the pipe on the fireplace
Vertical Dimension From the Floor of Unit to the
Center of the Horizontal V
ent Pipe
57" from
floor to
center
eg: a
eg: B
