Installation, Built-in firebox installation, Table 1 – FMI VFB36NC1 User Manual
Page 11: Figure 7a figure 7b figure 7c figure 7d
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108662-01L
11
55
5
/
8
"
39
3
/
8
"
34
1
/
2
"
27
3
/
4
"
0" CLEARANCE
0" CLEARANCE
*10
1
/
2
"
*10
1
/
2
"
* These dimensions allow for min. Clearances to
a 45° projected side wall. However, clearances
to projected mantel trims and facings are allowed
within a min. Of 16" to a perpenducular wall as
shown in figure 5, on page 10.
*14
1
/
2
"
50
3
/
8
"
71
1
/
4
"
35
5
/
8
"
41
1
/
2
"
0" CLEARANCE
48"
82"
58"
*17"
41"
*17"
FOR 32" MODELS
FOR 36" MODELS
FOR 42" MODELS
INSTALLATION
Figure 6 - Minimum Mantel Clearances
for Built-In Installation
Supplied
Firebox Hood
Must Be Used
at All Times
Wire-mesh
Screen
Firebox
Noncombustible
Material May
Project Off this
Surface above
the Firebox Hood
Mantel Shelf
Note: Any portion of the
mantel shelf must NOT
extend beyond this profile.
12" 16" 20"
1
1
/
2
"
6
3
/
4
"
12"
Note: All vertical
measurements are
from top of fireplace
hood opening to
bottom of mantel shelf.
These minimum
clearances replace any
other recommended
clearances supplied
with your ANSI Z21.11.2
approved gas logs.
Wall board or facing
material (above
firebox) may be of
combustible material,
including decorative
mantel ornaments or
other similar projec-
tions off of the facing
material.
Framing
Material
rough opening Dimensions for
built-in Installation
Model
Front Width
(Inside to Inside)
Height
Depth
(Min.)
32"
34
7
/
8
"
36
3
/
4
"
16
1
/
4
"
36"
41
1
/
2
"
40
1
/
2
"
20
3
/
4
"
42"
48
5
/
8
"
44
1
/
2
"
22
5
/
8
"
table 1
Depth
(Minimum)
Width
(Inside to Inside)
Height
Figure
7a
Figure
7b
Figure
7c
Figure
7d
NotIce: If your installation does
not meet the minimum clear-
ances shown, you must do one
of the following:
• raise the mantel to an accept-
able height
• remove the mantel
buIlt-IN FIRebox INstAllAtIoN
Built-in installation of this firebox involves
installing firebox into a framed-in enclosure.
This makes the front of firebox flush with wall.
Optional brass trim accessories are available
(see Accessories, page 18). The brass trim
will extend past sides of firebox approximately
1/2". This will cover the rough edges of the
wall opening. If installing a mantel above the
firebox, you must follow the clearances shown
in Figure 6. Follow the instructions below to
install the firebox in this manner.
1. Frame in rough opening. The firebox fram-
ing should be constructed of 2 x 4 lumber
or heavier. Use dimensions in Table 1
and rough opening layout in Figure 7a.
Adjust framing so that firebox flushes
with finished wall surface. If installing in
a corner, use dimensions in Figures 7b,
7c and 7d for rough opening.
2. Install gas piping to firebox location. See In-
stalling Gas Line, page 12 and Connecting
to Gas Supply in log set owner’s manual.