Section 2: Framing - Montigo P38DFNI Installation & Maintenance Manual

Section 2: Framing

Frame in the enclosure for the unit with framing materials. The
1).
framed opening for the assembled fireplace is 37 3/4" wide, x 41 1/4"
high x 20 1/8" deep, see Figure 2
NOTE: When constructing the framed opening, please ensure there is
access to install the gas line when the unit is installed. See Figure 21.
Figure 2. Framing dimensions, (Straight wall & Corner
Installation).
Combustible Header
Combustible Shelf
12" max.
RHS102
REAR VENT
N.G ONLY
26 3/8"
Figure 3. Combustible Framing for shelves over the fireplace,
Rear vent. Note: Rear vent available for Natural Gas only.
Combustible Header
Combustible Shelf
RHS102
17 1/2"
MEL Short
90° elbow
39"
Figure 4. Combustible Framing for shelves over the fireplace,
Top vent.
XG0193 -150204.1
Installation
.
0" clearance
to corners
55 1/2"
* When steetrock is not used behind the
fireplace, framing depth 20 1/8" may be
reduced by 5/8"
Non Combustible
Stud 1/2" Above Top
9"
41 1/4"
33 3/4"
Non Combustible
Stud 1/2" Above Top
49 3/4"
N.G. & L.P.
Top Vent
Min 1"
12" max.
96"
MI N
Rear
Vent
REAR VENT
N.G ONLY
Fireplace without standard screen (pre-January 2015 manufacturing).
N.G. & L.P.
Top Vent
Min 1"
12" max.
96"
MI N
Rear
Vent
REAR VENT
N.G ONLY
Fireplace with standard screen (post January 2015 manufacturing).
Figure 5. Non Combustible Framing for Top Vent or Rear
Vent, with alcove. Note: Straight through the wall rear
vent available for Natural Gas only.
Note: Images are shown without screens for clarity purposes. However,
your fireplace should not be operated without proper installation of
screens.
P38DF* Indoor Gas Fireplace
Ceiling
Alcove
area over
Fireplace,
Non-Combustible
Materials Only
Non-combustible
header
3"
12"
door
opening
Floor
Ceiling
Alcove
area over
Fireplace,
Non-Combustible
Materials Only
Non-combustible
header
3"
10.5"
door
opening
Floor
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