FMI VFB36NC1 - Manual (Page 9)

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veNtIlAtIoN AIR
Ventilation air from inside Building
This fresh air would come from an adjoining
unconfined space. When ventilating to an
adjoining unconfined space, you must provide
two permanent openings: one within 12" of the
ceiling and one within 12" of the floor on the
wall connecting the two spaces (see options
1 and 2, Figure 4). You can also remove door
into adjoining room (see option 3, Figure 3).
Follow the National Fuel Gas Code, ANSI
Z223.1/NFPA 54, Air for Combustion and
Ventilation for required size of ventilation
grills or ducts.
AIR FOR COMBUSTION AND VENTILATION
Figure 4 - Ventilation Air from Outdoors
ventilation Air From outdoors
Provide extra fresh air by using ventilation
grills or ducts. You must provide two perma-
nent openings: one within 12" of the ceiling
and one within 12" of the floor. Connect these
items directly to the outdoors or spaces open
to the outdoors. These spaces include attics
and crawl spaces. Follow the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Air for
Combustion and Ventilation for required size
of ventilation grills or ducts.
IMPORTANT: Do not provide openings for
inlet or outlet air into attic if attic has a thermo-
stat-controlled power vent. Heated air entering
the attic will activate the power vent.
INSTALLATION
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilation
Grills
Into Adjoining
Room,
Option 1
12"
12"
Outlet
Air
Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air
Ventilated
Crawl Space
To
Crawl
Space
To Attic
warninG: a qualified ser-
vice person must install firebox.
follow all local codes.
WARNING: Never install the
firebox
• in a bedroom or bathroom*
• in a recreational vehicle
• where curtains, furniture, cloth-
ing or other flammable objects
are less than 42" from the front,
top or sides of the firebox
• in high traffic areas
• in windy or drafty areas
* unless the installed log set is
rated at 10,000 btu/hr or less
in a bedroom or 6,000 Btu/Hr
or less in a bathroom.
Caution: log heaters
installed in this firebox create
warm air currents. these cur-
rents move heat to wall surfaces
next to firebox. installing firebox
next to vinyl or cloth wall cover-
ings or operating firebox where
impurities (such as, but not
limited to, tobacco smoke, aro-
matic candles, cleaning fluids,
oil or kerosene lamps, etc.) in
the air exist, may discolor walls
or cause odors.