Montigo P42DF - Manual (Page 13)

The Venting Graph: P42DF*
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 13 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 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.
Figure 13. 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 or 12a
.
Figure 13a. Top Vented, wall mounted Multi-elbow installation.
The vent run must comply with Venting Graph for Top vent, wall
mounted terminations, Figure 12 or 12a
.
Section 3-3-1: Venting Layout: Wall mounted termination.
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 3-3-3 on page 16.
„ Once the proposed venting layout has been determined refer
to Figure 12, 12a, or 14 to ensure the layout 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 13
Wall mounted Terminations
The following details are some possible configurations for Wall mounted
terminations.
Solid Section
Flex Section
Hearth
30”min
15’foot Max.
Shield
Termination
Exterior
Wall
8' MIN AT MAX
Horizontal
Figure 12. P42DF* LP Top Vent Venting Graph for wall mounted
terminations.
Figure 12a. P42DF* NG Top Vent Venting Graph for wall mounted
terminations.
12”
53”
A
C
B Unacceptable vent run
within shaded area.
Acceptable vent run
within non-shaded area.
If your installation does not fall
within the venting parameters,
please contact a local Montigo
dealer for Power Venting options.
44”
40 1/2”
A
C
B
.
Unacceptable vent run
within shaded area.
Acceptable vent run
within non-shaded area.
If your installation does not fall
within the venting parameters,
please contact a local Montigo
dealer for Power Venting options.
Heat
Heat
Shield
Termination
Hearth
Exterior
Wall
40 1/2" Min. (NG)
Flex section
53 Min. (LP)
44" Max. (NG)
12 Max. (LP)
Page 13
P42DF* Indoor Gas Fireplace
XG0195 -150204.2
Installation