Top Venting Graph P42, Pl42 - Montigo P38 Installation & Maintenance Manual

Top Venting Graph P42, PL42:

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
10 or 10.b with an 'X'.
If the 'X' falls on or above the top boundary of the shaded area, the
installation is acceptable.
Notes Wall Mounted Terminations: TOP VENT
• All measurements for vertical or horizontal runs are measured from
center of the vent pipe.
• Venting runs must fall within the limits set by the venting graph, see
Figure 10 or 10b.
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 144", 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.
PROPANE VENT RUN
132
120
Acceptable vent run
within non-shaded area.
108
96
84
72
60
53''
48
36
12''
24
12
0
0 12 24 36 48 60
Figure 10. PL42DF* Propane Top Vent Venting Graph for wall mounted terminations.
XG0199 - 170223
A
C
B
Unacceptable vent run
within non-shaded area.
72 84 96 108 120 132 144 156 168 180
Horizontal Run (In.)
NATURAL GAS VENT RUN
132
120
Acceptable vent run
within non-shaded area.
108
96
84
72
60
48
40½''
36
24
44''
12
0
0 12 24 36 48 60
Horizontal Run (In.)
Figure 10.b PL42DF* NG Top Vent Venting Graph for wall mounted terminations.
44" Max. for minimum vertical (NG)
Flex section
Flex section
Hearth
Hearth
Figure 10.c Top Vented, wall mounted Multi-elbow installation. See Venting Graph for Top vent,
wall mounted terminations, Figure 10 or 10b.
15'Max.
for minimum
30"min
30" Min.
Flex Section
Flex section
Hearth
Hearth
Figure 10.d Top Vented, wall mounted Multi-elbow installation. The vent run must comply with
Venting Graph for Top vent, wall mounted terminations, Figure 10 or 10.b
Installation
A
C
B
Unacceptable vent run
within shaded area.
72 84 96 108 120 132 144 156 168 180
44" Max. (NG)
16" Max. (LP) 12" Max. for minimum
vertical (Propane)
Heat
Heat Shield
Shield
Termination
Termination
39" Min. (NG)
40 1/2" Min. (NG)
53" Min. (Propane)
63" Min. (LP)
Exterior
Exterior
Wall
Wall
15' Max.
Heat
vertical
Heat
Shield
Shield
Termination
Termination
Solid section
9' Min at Max.
9' Min at Max.
Horizontal (NG)
Horizontal(NG)
10' Min at Max.
10' Min at Max.
Horizontal (Propane) Horizontal(LP)
Exterior
Exterior
Wall
Wall
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