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L38DF* Indoor Gas Fireplace
XG0180 - 053111
Installation
21 3/4”
12”
A
B
C
46”
42”
Figure 18.
Rear Vent Venting Graph for wall mounted
terminations.
Figure 18b.
Rear Vented, wall mounted Multi-elbow
termination installation. Installation for L38DF* must have a
minimum vertical rise of 46".The vent run must comply with
the Venting Graph for Rear vent, wall mounted terminations,
Figure 18.
Figure 18a
.
Straight run, Rear Vented, wall mounted
termination for L38DF*,
Note: Straight through the wall
rear vent available for Natural Gas only.
21 3/4”
PXT Extension
RHS101 Heat
Shield
Termination
Hearth
Exterior
Wall
NOTE:
12” MAX. horizontal
run with no vertical lift.
12” MAX.
If your installation does not fall
within the venting graph para-
meters, please contact Montigo
for Power Venting options.
Notes Wall Mounted Terminations: Rear Vent
■ All dimension lengths for vertical or horizontal runs are measured
from center of the vent pipe.
■ Venting runs must fall within the limits set by the venting graphs,
see Figure 18.
■ Fireplace must be converted to Rear Vent configuration prior to
running vent, see Figure 7 and 8.
The Venting Graph
Measure the vertical height from the fireplace hearth to the centre of the
termination and the horizontal run from the fireplace flue collar to the wall
flange of the termination. Plot on the Venting Graph
Figure 18
with an 'X'.
If the 'X' falls on or above the top boundary of the shaded area, the
installation is acceptable.
Example A: (Acceptable Installation)
If the vertical dimension from the hearth is 120" and the horizontal
run to the wall flange of the vent termination is 138", this would be an
acceptable installation.
Example B: (Unacceptable Installation)
If the vertical dimension from the hearth is 48" and the horizontal run to
the wall flange of the vent termination is 72", this would be would not
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.
Unacceptable vent run
within shaded area.
Acceptable vent run
within non-shaded area.
30” Max.
46” Min.
12”
Max.
Flex or Rigid
Section
24 1/4”
Min.
21 3/4”
Natural Gas only
