7
FAN KIT ASSEMBLY
A fan kit assembly is available for use with this fireplace as an
optional accessory. They are designed to be installed on FMI
factory prewired fireplaces only. The Fan kit assembly model
CBK-TV can be installed prior to or after installation of the
fireplace. Use of blowers or fans other than manufactured by
FMI voids the warranty.
NOTE: Fireplace must be wired to the house electrical system
in order for fan to operate. This fan system does not require a
wall switch. Refer to CBK-TV fan assembly installation
instructions for installation details.
Electrical connections are made through the cover on the side
of the fireplace illustrated in Figure 21. Use 14 AWG copper
wire for all connections. Be certain the fireplace is properly
grounded.
HEARTH EXTENSION:
A hearth extension projecting a minimum of 16” in front of
and a minimum of 8” beyond each side of the fireplace
opening is required to protect combustible floor construction
in front of the fireplace. Use FMI hearth extension (refer to
page 7) HE 36 or a layer of non combustible, inorganic
material having a thermal conductivity of K=0.84 BTU IN/FT.
HR. F (or less) at 1” thick. [for example, if the material
selected has a K factor of 0.25, such as glass fiber, the
following formula would apply. 0.25/0.84 x 1.0” = 0.30
thickness required. Thermal conductivity “K” of materials can
be obtained from the manufacturer or supplier of the non-
combustible material.] If the hearth extension is to be
covered, use non-combustible material such as tile, slate,
brick, concrete, metal, glass, marble, stone etc. Fasten the
hearth extension to the floor to prevent shifting and seal the
gap between the fireplace frame and hearth extension with a
non-combustible material (see figure 22).
WARNING:
HEARTH EXTENSION IS TO BE
INSTALLED ONLY AS ILLUSTRATED.
COLD CLIMATE INSTALLATIONS
It is important to seal the opening around the fireplace framing
with a non-combustible caulking or insulation to prevent the
entry of cold air from the chase area (see figure 23). The
opening around the base of the chimney must remain open and
free to circulate outside air from keeping the chimney cool as
designated. The fireplace must be set on a continuous
platform to prevent cold air from conducting through the metal
bottom. Insulate below the platform (if raised). The platform
bottom may be constructed of any wood product or other
materials such as cement.
FINISHING YOUR FIREPLACE:
Combustible materials such as wallboard, gypsum board, sheet
rock, drywall, plywood, etc. may make direct contact with
sides and top periphery of the fireplace face. It is important
that combustible materials do not overlap the face itself.
Brick, glass, tile or other non-combustible materials may
overlap the front face provided they do not obstruct essential
openings like louvered slots or any other opening. When
overlapping with a non-combustible facial material use only
non-combustible mortar or adhesive.
Figure 23
Figure 22
Figure 21
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