Section 2: Framing - Montigo L42DF ST Installation & Maintenance Manual

Section 2: Framing

Frame in the enclosure for the unit with framing materials. The
framed opening for the assembled fireplace is 45" wide, x 40"
high x 23 3/4" 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 20.
40"
Figure 2. Framing dimensions. Both walls typical
Back-framing the unit
1). Slide the fireplace into the cavity.
2). Tack four studs in place, shown in Figure 2 and 3 as dashed
lines.
3). Secure the fireplace in position by nailing into these cleats.
Figure 3. Securing the fireplace to the framing cleats,
both walls typical.
Note: Images are shown without screens for clarity purposes.
However, your fireplace should not be operated without proper
installation of screens.
XG0182 -151126
Installation
.
45"
40"
23 3/4"
.
45"
Combustible Shelf
2" Min.
N.G. & L.P
PEL Short
90 elbow
41"Min N.G.
54"Min L.P.
Figure 4. Combustible Framing for shelves over the fireplace, Top
vent.
L.P. & N.G
1" Min.
90°
12" Max.
Figure 5. Combustible Framing for shelves over the fireplace,
Side vent.
Top vent
N.G. & L.P
Min. 1"
Combustible
Header
Supplied
Header
95" Min.
40"
36"
Figure 6. Non Combustible Framing with alcove above fireplace,
Right side. Combustible Framing above fireplace, Left side, see
figure 2. (Top Vent).
L42DF-ST* Indoor Gas Fireplace
Supplied shield
12" (NG)
17" (LP)
Min.
Supplied shield
Combustible
shelf
1" Min.
12" Min.
Ceiling
Alcove over
Fireplace Non
Combustible
Materials Only
Non
Combustible
Header
10"
7"
door
30 1/2"
opening
Floor
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