Section 2: Framing The Fireplace - Montigo L38DF Installation & Maintenance Manual

L38DF* Indoor Gas Fireplace
Section 2: Framing
Frame in the enclosure for the unit with framing materials. The framed
opening for the assembled fireplace is 37 3/4" wide, x 35 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.
54 1/4"
Figure 3. Minimum Corner framing dimensions
L.P. & N.G
1" Min
1" Min
Figure 4. Combustible Framing for Rear Vent, with shelf above fireplace.
Page 6
Installation
* When sheetrock is not used
behind the fireplace, framing depth
20 1/8" may be reduced by 5/8".
0" clearance
to corners only
Combustible Header,
with Supplied shield.
Combustible
Shelf
9"
35 1/4"
29"
Combustible Header
Combustible Shelf
1" min.
12" max.
REAR VENT
N.G ONLY
21 3/4"
Figure 4. Combustible Framing for shelves over the fireplace, Rear
vent. note: Straight through the wall rear vent available for
natural gas only.
Combustible Header
Combustible Shelf
L.P. & N.G
MEL Short
90° elbow
35"
1" min.
Figure 5. Combustible Framing for shelves over the fireplace, Top vent
N.G. & L.P.
Top Vent
Ceiling
1" min.
12" max.
84"
Rear
Min.
Vent
REAR VENT
N.G ONLY
Figure 6. Non Combustible Framing for Top Vent or Rear Vent, with
alcove. note: Straight through the wall rear vent available for
natural gas only.
9"
35 1/4"
29"
17 1/2"
35 1/4"
Non-Combustible
materials. Alcove
over fireplace.
Min 1"
Non-combustible
header
3"
12"
door
opening
Floor
XG0180 - 053111.1
.