Montigo PL38DF Installation & Maintenance Manual page 16

PL38DF* Indoor Gas Fireplace
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 15 or 15a.
■ Fireplace must be converted to Rear Vent configuration
prior to running vent, see Figure 8 and 8a.
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 15 or 15a 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 36" and the horizontal
run to the wall flange of the vent termination is 84", this 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.
Acceptable vent run
within non-shaded area.
B
49"
42 "
26.3/8"
12 "
Figure 15. Rear Vent Venting Graph for NG wall mounted terminations.
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Installation
A
C
Unacceptable vent run
within shaded area.
If your installation does not fall
within the venting parameters,
please contact a local Montigo
dealer for Power Venting options.
Acceptable vent run
within non-shaded area.
B
63"
42 "
Figure 15a Rear Vent Venting Graph for LP wall mounted terminations.
NOTE:
12" MAX. horizontal
run with no vertical lift.
Hearth
Figure 16. Straight run, Rear Vented, wall mounted termination. Note:
Straight through the wall rear vent available for Natural Gas only.
Flex or Rigid
Section
12"
Max.
Figure 16a. Rear Vented, wall mounted Multi-elbow termination
installation for NG or LP. Installation must comply with the Venting
Graph for Rear vent, wall mounted terminations, Figure 15 or 15a.
A
C
Unacceptable vent run
within shaded area.
If your installation does not fall
within the venting parameters,
please contact a local Montigo
dealer for Power Venting options.
PXT Extension
RHS101 Heat
Shield
Termination
12" MAX.
26 3/8"
Exterior
Wall
30" Max.
49" Min NG
63" Min LP
26 3/8"
XG0216 - 160215.1