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Top Venting Graph (5''/8'') P52, PL52:
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
12 or 12b 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 12 or 12b.
Example A: (Acceptable Installation)
If the vertical dimension from the hearth is 180" and the horizontal
run to the wall flange of the vent termination is 120", this would be an
acceptable installation.
Example B: (Unacceptable Installation)
If the vertical dimension from the hearth is 126" and the horizontal
run to the wall flange of the vent termination is 54", this would not be
an acceptable installation.
Example C: (Unacceptable Installation)
If the vertical dimension from the floor of the fireplace is 125" and the
horizontal run to the wall flange of the vent termination is 130", this
would not be an acceptable installation.
198
180
Acceptable vent run
within non-shaded area.
162
144
B
126
108
90
72
54
36
18
0
0
12
24
36
48
60
Figure 12. 5"/8" Top Vent Venting Graph for wall mounted terminations.
XG0199 - 170223
A
132''
C
84''
Unacceptable vent run
within shaded area.
72
84
96
108
120
132
144
156
168 180
Horizontal Run (In.)
7' Max. for min Vertical
Flex section
Flex section
Hearth
Hearth
Figure 12.b 5"/8" Top Vented, wall mounted installation with one 90° bend. The vent run must
comply with Venting Graph for Top vent, wall mounted terminations, Figure 12.
Installation
44" Max. (NG)
Heat
Heat Shield
Shield
Termination
Termination
39" Min. (NG)
11' Min.
63" Min. (LP)
Exterior
Exterior
Wall
Wall
21
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