FMI VFB36NC1 - Manual (Page 4)

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PRODUCT FEATURES
opeRAtIoN
This firebox is designed for use with approved
ANSI Z21.11.2 decorative type unvented room
heaters. (Physical size limitations apply. Refer
to minimum firebox requirements supplied
with log heater.) It requires no outside vent-
ing or chimney making installation easy and
inexpensive. When used without the blower,
the firebox requires no electricity making it
ideal for emergency backup heat.
bloWeR AccessoRy
The circulating models will accept either a ro-
tary type fan (model BK) or the triple radial fan
blower system (model BK3) accessories. The
blower circulates heated air from the firebox
into the room. Use of blower is optional.
ReFRActoRy bRIck lINeR
Your firebox may feature a concrete refrac-
tory brick liner. As with all concrete liners,
this liner may develop slight cracks when
exposed to heat. These cracks will not affect
the performance of the fireplace or vent-free
gas logs.
outsIde AIR kIt AccessoRy
Fireboxes that include “A” in their model
number can accept any AK4 series outside
air kit accessory.
The optional AK4 air kit provides additional
outdoor air to improve burner efficiency and
reduce build-up of condensation in the living
space. Follow the instructions included with
the air kit.
LOCATINg FIREBOX
plANNING
Plan where you will install the firebox. This will
save time and money later when you install
the firebox. Before installation, consider the
following:
1. Where the firebox will be located. Allow for
wall and ceiling clearances (see Installa-
tion Clearances, page 10).
2. Everything needed to complete installation.
3. These models CANNOT be installed in a
bedroom unless the maximum BTU rating
of the installed vent-free log set is less
than 10,000 Btu/Hr.
4. Proper air for combustion and ventilation
(page 7).