Montigo P42DF - Manual (Page 7)

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 20.
Figure 2. Framing dimensions, (Straight wall & Corner
Installation).
Note: When sheetrock is not used behind
the fireplace, framing depth 21 7/8" may
be reduced by 5/8".
Figure 5. Non Combustible Framing for Top Vent or Rear
Vent, with alcove.
Figure 4. Combustible Framing for shelves over the fireplace,
Top vent.
Figure 3. Combustible Framing for shelves over the fireplace,
Rear vent.
42”
9”
34 1/2”
Combustible Header
Combustible Shelf
27 1/2”
12” max.
Non Combustible
Stud 1/2” Above Top
RHS101
Non-Combustible
Materials Only
MIN
96”
12”
door
opening
3”
Rear
Vent
Ceiling
Floor
Alcove
area over
Fireplac e
Top Vent
N.G. & L.P.
12” max.
Non-combustible
header
Min 1”
21 7/
8”
42 ”
42”
Noncombustible
Stud
35”
84
1/2
”
0" clearance
to corners
42
”
59 3/4”
40 1/2”
MEL Short
90° elbow 50 1/2”
17 1/2”
Combustible Header
Combustible Shelf
RHS101
Non Combustible
Stud 1/2” above top
Note: Images are shown without screens for clarity purposes. However,
your fireplace should not be operated without proper installation of
screens.
Non-Combustible
Materials Only
MIN
96”
10.5”
door
opening
3”
Rear
Vent
Ceiling
Floor
Alcove
area over
Fireplac e
Top Vent
N.G. & L.P.
12” max.
Non-combustible
header
Min 1”
Fireplace without standard screen (pre-January 2015 manufacturing).
Fireplace with standard screen (post January 2015 manufacturing).
Page 7
P42DF* Indoor Gas Fireplace
XG0195 -150204.2
Installation
Section 2: Framing & Clearances