Vanguard FB36NCA, FB42NC, FB36CA, FB42C Owner's Operation And Installation Manual page 8

VANGUARD
UNVENTED (VENT-FREE) LOGMATE™ FIREBOX
INSTALLATION
Continued
Mantel Clearances for Built-In
Installation
If placing custom mantel above built-in
firebox, you must meet the minimum allow-
able clearance between mantel shelf and top
of firebox opening shown in Figure 7. These
are the minimum allowable mantel clear-
ances for a safe installation. Use larger clear-
ances wherever possible to minimize the
heating of objects and materials placed on
the mantel.
CAUTION: Do not allow the
vent-free gas log heater to touch
or extend beyond the fireplace
screen.
If your installation dies not meet the above
minimum clearances in Figure 7, you must:
• raise the mantel to an acceptable height,
OR
• remove the mantel.
BUILT-IN FIREBOX
INSTALLATION
Built-in installation of this firebox involves
installing firebox into a framed-in enclo-
sure. This makes the front of firebox flush
with wall. Optional brass trim accessories
are available (see Accessories, page 13).
The brass trim will extend past sides of
firebox approximately 1/2 inch.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
7. Follow the instructions below to install
the firebox in this manner.
1. Frame in rough opening. The firebox
framing should be constructed of 2 x 4
lumber or heavier. Use dimensions in
Table 1 and rough opening layout in
Figure 8a. Adjust framing so that fire-
box flushes with finished wall surface.
If installing in a corner, use dimensions
in Figures 8b and 8c for rough opening.
2. Install gas piping to firebox location.
See Installing Gas Line on page 10 and
Connecting to Gas Supply in log set
owners manual.
IMPORTANT: If installing blower acces-
sory (Models FB36CA and FB42C), see
Hard-Wiring Firebox, page 10.
Non-combustible Material
May Project Off this Surface 10"
above the Firebox Hood
8"
6"
Facing material (above
1 /2
2
firebox) may be of
combustible material,
including decorative
mantel ornaments.
Firebox
Wire-mesh
Screen
Figure 7 - Minimum Mantel Clearances for Built-In Installation
TABLE 1
ROUGH OPENING DIMENSIONS FOR BUILT-IN INSTALLATION
FRONT WIDTH
MODEL # (Inside to Inside)
1
FB36NCA 41 /
1
FB36CA 41 /
FB42NC 47 1 /
1
FB42C 47 /
Depth
(Minimum)
Height
Width
(Inside to Inside)
Figure 8a
Figure 8 - Rough Opening for Installing in Wall
8
Mantel Shelf
"
13" 16" 19" 21"
Firebox Hood
Must Be Used
at All Times
HEIGHT
" 37"
4
1
" 35 / "
4 2
" 37"
4
1
" 35 / "
4 2
36"
39"
Note:
All vertical measurements
are from top of fireplace
hood opening to bottom
of mantel shelf. All
measurements are in
inches.
DEPTH
(Minimum)
20"
20"
20"
20"
FOR 36" MODELS
Height - 37" for FB36NCA
35 1/2" for FB36CA
Figure 8b
45
41-1/4"
72"
TOP VIEW
FOR 42" MODELS
Height - 37" for FB42NCA
35 1/2" for FB42CA
Figure 8c
45
47-1/4"
78"
TOP VIEW
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