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127026-01_D
10
Figure 7 - 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
INSTALLATION
continued
Mantel Clearances for Built-In Installation
If placing custom mantel above built-in firebox, you must meet
the minimum allowable clearance between mantel shelf and top of
firebox opening shown in Figure 7. These are the minimum allow-
able mantel clearances for a safe installation. Use larger clearances
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.
NOTICE: Surface temperatures of adjacent walls and
mantels become hot during operation. Walls and
mantels above the firebox may become hot to the
touch. If installed properly, these temperatures meet
the requirement of the national product standard. Fol-
low all minimum clearances shown in this manual.
NOTICE: If your installation does not meet the minimum
clearances shown, you must do one of the following:
• raise the mantel to an acceptable 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. If
installing a mantel above the firebox, you must follow the clearances
shown in Figure 7. Follow these instructions 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 and rough opening lay-
out in Figure 8. Adjust framing so that firebox flushes with finished
wall surface. If installing in a corner, use dimensions in Figure 9,
for rough opening.
2. Install gas piping to firebox location. See Gas Line Installation on
page 13 and Connecting to Gas Supply in log set owner’s manual.
Figure 8 - Framing Dimensions
Maintain 1-
1
/
2
"
Clearance at Sides
and Back of Fireplace
61
"
(36
"
Models)
65
"
(42
"
Models)
71
"
(50
"
Models)
86-
1
/
2
"
(36
"
Models)
92
"
(42
"
Models)
100
"
(50
"
Models)
1-
1
/
2
"
Clearance
Not Required at
Nailing Flanges
Figure 9 - Corner Installation
54-
5
/
8
"
30-
1
/
8
"
28-
1
/
4
"
(36
"
Models)
45-
3
/
8
" (36
"
Models)
51-
3
/
8
" (42
"
Models)
59-
3
/
8
" (50
"
Models)
3. Carefully set firebox in front of rough opening with back of firebox
inside wall opening.
4. Carefully insert firebox into rough opening.
5. Attach firebox to wall studs using nails or wood screws through
holes in nailing flange (see Figure 10, page 11).
6. Install and properly test gas log heater. Follow installation in-
structions included with the vent-free gas log heater that is being
installed.
