Section 3-3-1: Venting Layout Wall Mounted Termination - Montigo P42DF Installation & Maintenance Manual

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.
„
All through-the–wall terminations within 4' of the fireplace must
„
have a Montigo Heat Shield (RHS101) installed. See Section
3-3-3.
All through-the-wall terminations beyond 4' of the fireplace must
„
have a Montigo Heat Shield (RHS8) installed. See Section 3-3-3.
Once the proposed venting layout has been determined refer to
„
Figure 10 or 10a 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 10 or 10a.
Wall mounted Terminations
The following details are some possible configurations for Wall mounted
terminations. See below.
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 10
or 10a 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.
Acceptable vent run
within non-shaded area.
B
53"
12 "
Figure 10. P42DF* LP Top Vent Venting Graph for wall mounted
terminations.
XG0195 -030712
Installation
A
C
Unacceptable vent run
within shaded area.
If your installation does not fall
within the venting graph para-
meters, please contact Montigo
for Power Venting options.
Acceptable vent run
within non-shaded area.
B
40 1/2 "
44 "
Figure 10a. P42DF* NG Top Vent Venting Graph for wall mounted terminations.
Flex section
Hearth
Figure 10b. Top Vented, wall mounted installation with 1 elbow (1
one 90° bend). The vent run must comply with Venting Graph for
Top vent, wall mounted terminations, Figure 10 and 10a
15'foot Max.
30"min
Flex Section
Hearth
Figure 10d. Top Vented, wall mounted Multi-elbow installation. See
Venting Graph for Top vent, wall mounted terminations, Figure 10.
WARNING:
An inspection of the explosion relief flappers and door MUST be
made prior to lighting the fireplace. A faulty seal on the door gasket ...
and/or explosion ports will result in products of combustion leaking
into the living space and may result in carbon monoxide poisoning.
P42DF* Indoor Gas Fireplace
A
C
Unacceptable vent run
within shaded area.
If your installation does not fall
within the venting graph para-
meters, please contact Montigo
for Power Venting options.
44" Min. (NG)
12 Min. (LP)
RHS8 Heat
Shield
Termination
40 1/2" Min. (NG)
53 Min. (LP)
Flex
Exterior
Wall
.
RHS8 Heat
Shield
Termination
Solid Section
8' MIN AT MAX
Horizontal
Exterior
Wall
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