18
Installation
XG0228 - 021419
Figure 8.m
Straight run, Rear Vented, wall mounted termination
Figure 8.n
Rear Vented, wall mounted Multi-elbow termination installation. must have a mini
-
mum vertical rise of 26"
Selection of components and details of venting layout should adhere
to the following guidelines:
• Vent terminations must not be recessed in walls or siding.
• For Heat Shield requirements see Section 3-3.
• Once the proposed venting layout has been determined refer to
graph to ensure the layout is acceptable.
Notes Wall Mounted Terminations: REAR 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.
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 96", this would not 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 120", this
would not be an acceptable installation.
H42 Rear 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 with an 'X'.
If the 'X' falls on or above the top boundary of the shaded area, the
installation is acceptable.
REAR VENT RUN
Figure 8.l
Rear Venting Graph for wall mounted terminations
0
HEARTH
12
12
0
60
36
84
120
24
72
108
48
96
132
Vertical Height (In.)
Horizontal Run (In.)
36
60
84
108
132
156
24
48
72
96
120
144
168 180
Acceptable vent run
within non-shaded area.
Unacceptable vent run
within shaded area.
A
B
C
Hearth
Hearth
Termination
Flex or Rigid
Heat Sheild
PXT Extention
33''
18'' NG only
52''
48''
33''
Max.
52''
Min.
19''
Min.
33"
18''
Max.
30''
Max.
18''
Max.
18'' Max. horozontal
run with no vertical lift
