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VTFB32, VTFB36, VTFB42 Full-View Vent-Free Fireboxes
3
9
/
16
"
3
7
/
16
"
8
1
/
8
"
8
1
/
8
"
10
1
/
2
"
9
3
/
4
"
29
1
/
2
"
23
15
/
16
"
3
9
/
16
"
17
3
/
8
"
25
1
/
8
"
29
1
/
2
"
34
7
/
16
"
36
3
/
8
"
Standoffs
22
1
/
2
"
4"
32
1
/
4
"
36
1
/
2
"
14
15
/
16
"
6
5
/
16
"
3
3
/
8
"
/
16
"
8
1
/
8
"
4
1
/
4
"
3
1
/
2
"
Built-In
Side
Nailing
Flanges
5/8"
Figure 1 - Firebox Dimensions (32" Models)
Right Side View
Firebox Top View
Front View
32" MODELS
Outside Air
Kit Location
(Optional)
Left Side
View with
Air Kit
Back View
Top View
8
15
/
16
"
9
3
/
4
"
12
1
/
4
"
19
1
/
2
"
16
11
/
16
"
1
9
/
16
"
3
9
/
16
"
8
1
/
8
"
2
13
/
16
"
8
5
/
8
"
Built-In
Side
Nailing
Flanges
Square
Gas Line
Access
Holes
VTFB32, VTFB36, VTFB42 Full-View Vent-Free Fireboxes 20
1
/
2
"
(36" Models)
24
1
/
8
"
(42" Models)
2
9
/
16
"
2
9
/
16
"
26" (36" Models)
29
1
/
2
" (42" Models)
35" (36" Models)
42" (42" Models)
Full Length Nailing Flanges, Top and Sides
8"
8"
8"
8"
2"
36" (36" Models) 40" (42" Models)
40
1
/
4
" (36" Models) 44
1
/
4
" (42" Models)
43"(36" Models) 50"(42" Models)
35" (36" Models)
42" (42" Models)
36
1
/
8
" (36" Models)
36
1
/
8
" (42" Models)
41
1
/
8
"(36" Models) 48
1
/
8
"(42" Models)
5/8"
4"
29
3
/
8
" (36" Models)
36
1
/
2
" (42" Models)
Figure 2 - Firebox Dimensions (36" and 42" Models)
36" AND 42" MODELS
Note: If only one dimension is shown, the dimension is the same for both 36" and 42" models.
Firebox Top View
13
11
/
16
" (36" Models)
12
3
/
8
" (42" Models)
7
1
/
4
" (36" Models)
9" (42" Models)
2
9
/
16
"
10
1
/
2
"
(36" Models)
12
1
/
2
"
(42" Models)
Outside Air
Kit Location
(Optional)
Left Side
View with
Air Kit
13
11
/
16
"
(36" Models)
15
9
/
16
"
(42" Models)
2
9
/
16
"
3
13
/
16
"
Full Length Nailing Flanges, T
24
15
/
16
" (36" Models)
26
7
/
8
" (42" Models)
9
9
/
16
"
(36" Models)
10
11
/
16
"
(42" Models)
21
1
/
8
" (36" Models)
23
1
/
16
" (42" Models)
Right
Side
View
Front View
Back View
Top View NOTICE: If your installation does
not meet the minimum clearances
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 rebox involves install-
ing rebox into a framed-in enclosure. This makes
the front of rebox ush with wall. Optional brass
trim accessories are available (see Accessories,
page 14). The brass trim will extend past sides
of rebox approximately 1/2". This will cover
the rough edges of the wall opening. If installing
a mantel above the rebox, you must follow the
clearances shown in Figure 6. Follow the instruc-
tions below to install the rebox in this manner.
1. Frame in rough opening. The rebox 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 rebox ushes with nished wall surface.
If installing in a corner, use dimensions in
Figures 7b, 7c and 7d for rough opening.
2. Install gas piping to rebox location. See
Installing Gas Line, page 12 and Connecting
to Gas Supply in log set owners manual.
3. Carefully set rebox in front of rough open-
ing with back of rebox inside wall opening.
IMPORTANT: If installing a perimeter trim
kit, see instructions included with trim acces-
sory. You must install shoulder screws from
trim kit now.
4. Carefully insert rebox into rough opening.
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.
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
These minimum clearances replace any other recommended
clearances supplied with your ANSI Z21.11.2 approved gas logs.
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
Figure 7 - Rough Opening for Installing
in Wall
Depth
(Minimum)
Width
(Inside to Inside)
Height
Figure 7a
37"
45°
41
1
/
2
"
52
11
/
32
"
74"
TOP VIEW
FOR 36"
MODELS
Figure 7c
30"
45°
34
7
/
8
"
42
7
/
16
"
60"
TOP VIEW
FOR 32"
MODELS
43"
45°
48
5
/
8
"
60
13
/
16
"
86"
TOP VIEW
FOR 42"
MODELS
Figure 7d
Figure 7b