Comfortflame.US.com
900564-00NC
10
Figure 9 - Framing for Built-In Firebox Installation, Top View
1
1
/
2
" Max.
3/8" Max.
4"
8" Min. from adjacent
wall to fireplace opening
SAFE
ZONE
Combustible material must
not overlap more than 3/8"
onto black metal front face.
Nailing Flange
Drywall
Minimum from
firebox edge to
combustible material
Edge
of side
firebox
opening
Figure 10 - Attaching Firebox to Wall Studs
Nailing Flanges
Nails or
Wood
Screws
WARNING: Do not allow any combustible materi-
als to overlap the firebox front facing (see Figure 9).
IMPORTANT:
Noncombustible materials such as brick, tile,
etc. may overlap the front facing, but should never cover
any necessary openings like louvered slots.
WARNING: Never modify or cover the louvered
slots on the front of the firebox.
WARNING: Use only noncombustible mortar or
adhesives when overlapping the front facing with
noncombustible facing material.
WARNING: Do not fill the spaces around the firebox
with insulation or other materials.
WARNING: Framing may be placed or rest against
fireplace spacer, however; framing must never be
notched.
WARNING: Do not alter, cut or modify fireplace
spacers.
INSTALLATION
Continued
INSTALLING GAS LINE
WARNING: A qualified service person must con-
nect appliance to gas supply. Follow all local codes.
IMPORTANT:
See Connecting to Gas Supply in your log set owner’s
manual for details on gas hookup.
You may run the gas line from either side of the firebox (see Figure
11, page 11). When you have determined how the gas line will run,
locate one of the recessed knockouts in the firebrick floor (see Fig
-
ure 12, page 11). Firmly tap the center of the knockout with a chisel
until it is released. Carefully chisel the rough edges of the hole you
have made to smooth edges. This hole will line up with the hole in
the metal floor.
CAUTION: Do not use excessive force to remove the
knockout. Too much force may damage the firebrick
concrete insert.
A manual shutoff valve, complying with the National Fuel Gas code,
ANS Z223.1/NFPA 54, must be included within 6' of the vent-free fire
-
box gas supply system. It may be convenient to install the gas shutoff
outside the vent-free firebox enclosure where it can be accessed with
a key through a wall as shown in Figure 13, page 11. Depending on
the type of installation, some local codes may require you to install
2 manual shutoff valves independently accessible from both rooms.
Check your local codes for applicable installation requirements.
A 36" long 1/2" NPT SCHD 40 flexible gas connector line complying
with the National Fuel Gas code ANS Z223.1/NFPA 54, may be run
from the regulator to the incoming 1/2" NPT black iron gas line. You
may also route the incoming 1/2" NPT black iron gas line directly to
the appliance regulator.
