Installation, Continued, Built-in firebox installation – FMI COMFORTFLAME CGFB32CC User Manual

Page 10: Figure 6a figure 6b

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124970-01B

10

55

5

/

8

"

39

3

/

8

"

34

1

/

2

"

27

3

/

4

"

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 4, on page 9.

FOR 32" MODELS

INSTALLATION

Continued

Figure 5 - 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

"

table 1

Figure 6 - Rough Opening for Installing

in Wall

Depth

(Minimum)

Width

(Inside to Inside)

Height

Figure

6a

Figure

6b

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 17). 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 6a.
Adjust framing so that firebox flushes
with finished wall surface. If installing in a
corner, use dimensions in Figures 6b for
rough opening.

2. Install gas piping to firebox location. See In-

stalling Gas Line, page 11 and Connecting
to Gas Supply
in log set owner’s manual.

IMPORTANT: If installing blower accessory
(circulating models with louvers only), see
Hard-Wiring Firebox, page 15.
3. Carefully set firebox in front of rough open-

ing with back of firebox inside wall open-
ing. IMPORTANT: If installing a perimeter
trim kit, see instructions included with
trim accessory. You must install shoulder
screws from trim kit now.

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 7 on page 11).

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