www.fmiproducts.com
110398-01F
10
LOG SIZING REQUIREMENTS
Log
Size
Minimum Firebox
Height
Depth
Width
27"
17"
19"
32"
Carefully follow the instructions below. This
will ensure safe installation into a masonry,
UL127-listed manufactured fireplace, or listed
vent-free firebox.
Minimum Clearances For Side
Combustible Material, Side Wall, and
Ceiling
A. Clearances from side of fireplace cabinet
to any combustible material and wall
should follow diagram in Figure 4.
Example:
The face of a mantel, bookshelf,
etc. is made of combustible material and
protrudes 3
1
/
2
" from the wall. This com
-
bustible material must be 4" from the side
of the fireplace cabinet (see Figure 4).
Note: When installing your gas logs into
a manufactured firebox, follow firebox
manufacturer’s instructions for minimum
clearances to combustible materials.
B. Clearances from top of fireplace opening
to ceiling should not be less than 42".
INSTALLATION
Continued
Figure 4 - Minimum Clearance for
Combustible to Wall
*Minimum 16" from Side Wall
*
Example
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
NOTICE: Manual control heaters
may be used as a vented product.
If so, you must always run heater
with chimney flue damper open.
If running heater with damper
open, noncombustible material
above fireplace opening is not
needed. Go to
Installing Damper
Clamp Accessory for Vented
Operation
, page 12.
MINIMUM NONCOMBUSTIBLE
MATERIAL CLEARANCES
If Not Using Mantel
Note: If using a mantel, proceed to If Using
Mantel, page 10 If not using a mantel, follow
the information below.
Noncombustible
Material Distance
(A)
Requirements for Safe
Installation
12" or more
Noncombustible mate-
rial OK.
Between 8" and
12"
Install fireplace hood
accessory (GA6050 or
GA6053 see
Accessories
,
page 30).
Less than 8"
Noncombustible material
must be extended to at
least 8". See
Between
8" and 12"
, above. If you
cannot extend material,
you must operate heater
with flue damper open.
INSTALLATION AND CLEARANCES
(Vent-Free Operation Only)
WARNING: Maintain the
minimum clearances. If you
can, provide greater clearances
from floor, ceiling, and adjoin
-
ing wall.
MINIMUM FIREPLACE CLEARANCE TO
COMBUSTIBLE MATERIALS
Side Wall 16", Ceiling 42", Front 36"