Section 2: Framing & Clearances - Montigo PL42DF Installation & Maintenance Manual

PL42DF* Indoor Gas Fireplace
Section 2: Framing & Clearances
The install requirements of your fireplace are dependent on several
factors. Gas line location, electrical connection, gas line type and
decorative surround options can play into the install. These factors
should be considered when determining framing and layout of
your fireplace.
Note: four sided surrounds will require a raised installation.
Frame in the enclosure for the unit with framing materials. The
framed opening for the assembled fireplace is 42" wide, x 42" high
x 21 7/8" 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.
Noncombustible
Stud
Figure 2. Framing dimensions, (Straight wall & Corner
Installation).
Combustible Header
Combustible Shelf
12" max.
RHS101
34 1/2"
27 1/2"
Figure 3. Combustible Framing for shelves over the fireplace,
Rear vent.
Page 8
Installation
.
0" clearance
to corners
59 3/4"
Note: When sheetrock is not used
behind the fireplace, framing depth 21
7/8" may be reduced by 5/8".
Non Combustible
Stud 1/2" Above Top
9"
42"
Combustible Header
Combustible Shelf
RHS101
17 1/2"
MEL Short
90° elbow
40 1/2"
Figure 4. Combustible Framing for shelves over the fireplace,
Top vent.
N.G. & L.P.
Top Vent
Min 1"
12" max.
96"
MI N
Rear
Vent
Figure 5. Non Combustible Framing for Top Vent or Rear
Vent, with alcove.
Note: Images are shown without screens for clarity purposes.
However, your fireplace should not be operated without proper
installation of screens.
Non Combustible
Stud 1/2" above top
50 1/2"
Ceilin g
Non-Combustibl e
Materials Only
Alcove
area over
Fireplac e
Non-combustible
header
3"
10.5"
door
opening
Floor
XG0217 - 160215.1