Top Vent Venting Runs; Through-The-Wall Installations - Montigo B34DV Installation, Operation & Maintenance Manual

Top Vent Venting Runs

For the B-Series DV-2 Top Vent, there are two types of installa-
tions: A) Through-The-Wall Installations and B) Vertical (Through-
The-Roof) Installations.

Through-The-Wall Installations

Before you install any venting, you must determine whether the
venting run will be acceptable. Unacceptable venting can affect
the fireplace's combustion.
The Venting Graph
Measure the vertical height from the fireplace hearth to the centre
of the termination and the horizontal run from the from the fireplace
flue collar to the wall flange of the termination. Plot on the Venting
Graph (Fig. 8) or (Fig.8a) with an 'X'.
If the 'X' falls on or above the top boundary of the shaded area, the
installation is acceptable.
B34DV-2
B34DV-2
Example A: (Acceptable Installation)
If the vertical dimension from the hearth is 108" and the horizontal
run to the wall flange of the vent termination is 180", this would be
an acceptable installation.
Example B: (Acceptable Installation)
If the vertical dimension from the hearth is 44" and the horizontal
run to the wall flange of the vent termination is 72", this would be an
acceptable installation.
Example C: (Unacceptable Installation)
If the vertical dimension from the floor of the fireplace is 60" and the
horizontal run to the wall flange of the vent termination is 144", this
would NOT be an acceptable installation.
B
Figure 8. B34-DV-2 Top Vent Venting Graph
All dimension lengths for vertical or
NOTES:
horizontal runs are measured from centre of the vent
pipe. Venting runs must fall within the limits set by the
venting graph (Fig 8 or 8a).
Part No. XG0160 - 151125
Installation
C
39 7/8"
72 "
B38DV-2
Example A: (Acceptable Installation)
If the vertical dimension from the hearth is 84" and the horizontal
run to the wall flange of the vent termination is 36", this would be an
acceptable installation.
Example B: (Acceptable Installation)
If the vertical dimension from the hearth is 108" and the horizontal
run to the wall flange of the vent termination is 120", this would be
an acceptable installation.
Example C: (Unacceptable Installation)
If the vertical dimension from the floor of the fireplace is 72" and the
horizontal run to the wall flange of the vent termination is 84", this
would NOT be an acceptable installation.
A
18 "
Figure 8a. B38-DV-2 Top Vent Venting Graph
Available Top Vent Components
A
The following venting components are available for the B-Series DV-2
Top Vent:
A - Termination
B - Stucco Kits
C - Flex Sections
D - Rigid
Sections
E - Elbows
B-Series DV-2 Gas Fireplace
B38DV-2
B
C
42 7/8"
4" / 7" Venting
TO-4 (3" Length)
M
MTO-4F (3" Length)
MSR (Stucco Frame)
MOSR (Stucco Can)
BSR ( Brick Can)
MFL-1 (12" f/f Section)
MFL-2 (24" f/f Section)
MFL-3 (36" f/f Section)
MFL-4 (48" f/f Section)
MFL-6 (72" f/f Section)
MEXT-1 (12" mf Section)
MEXT-2 (24" m/f Section)
MEXT-3 (36" m/f Section)
MEXT-4 (48" m/f Section)
MEXT-6 (72" m/f Section)
MEL-90MM (m/m 90° Elbow)
MEL-90FF (f/f 90° Elbow)
MEL-90FM (f/m 90° Elbow)
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