Installation - Desa L32LHN Owner's Manual

Unvented (vent-free)
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AIR FOR COMbUSTION AND VENTILATION
wall connecting the two spaces (see options
1 and 2, Figure 3). 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.
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation
grills or ducts. You must provide two perma-
Ventilation
Grills
Into
Or
Adjoining
Remove
Room,
Door into
Option 1
Adjoining
Room,
Option
3
12"
Figure 3 - Ventilation Air from Inside
Building
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,
clothing 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.
115254-01B
12"
Ventilation Grills
Into Adjoining Room,
Option 2

INSTALLATION

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Continued
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, Section
5.3, 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.
Outlet
Air
Inlet
Air
Figure 4 - Ventilation Air from Outdoors
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.
IMPORTANT: Vent-free gas log heaters add
moisture to the air. Although this is beneficial,
installing firebox in rooms without enough
ventilation air may cause mildew to form from
too much moisture. See Air for Combustion
and Ventilation, page 7.
Ventilated
Outlet
Attic
Air
Ventilated
Inlet Air
Crawl Space
To Attic
To
Crawl
Space
9

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