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104256
UNVENTED PROPANE/LP GAS LOG HEATER
VANGUARD FLAME-MAX™
LOG SIZING REQUIREMENTS
Log Minimum Firebox
Size Height Depth Front Width
18" 17" 14" 20"
24" 17" 14" 26"
30" 17" 14" 32"
36” 17” 14” 38”
INSTALLATION AND
CLEARANCES (Vent-Free
Operation Only)
Figure 4 - Minimum Clearance to Wall and Ceiling
WARNING: Maintain the mini-
mum clearances. If you can, pro-
vide greater clearances from
floor, ceiling, and adjoining wall.
MINIMUM FIREPLACE
CLEARANCE
TO COMBUSTIBLE
MATERIALS
Log Size Side Wall Ceiling
18", 24", 16" 42"
30”, and 36"
Carefully follow the instructions below. This
will ensure safe installation into a masonry,
U.L. listed manufactured fireplace, or AGA
design certified vent-free firebox listed for
use with these models.
Minimum Wall and Ceiling
Clearances (see Figure 4)
A. Clearances from the side of the fire-
place opening to any combustible wall
should not be less than 16 inches.
B. Clearances from the top of the fireplace
opening to the ceiling should not be less
than 42 inches.
42"
16"
Left and Right
Sides
WARNING: Never install the
heater
• in a bedroom or bathroom un-
less installed as a vented ap-
pliance (see page 9)
• in a recreational vehicle
• where curtains, furniture,
clothing, or other flammable
objects are less than 36 inches
from the front, top, or sides of
the heater
• in high traffic areas
• in windy or drafty areas
INSTALLATION
NOTICE: A qualified service per-
son must install heater. Follow
all local codes.
WARNING: Before installing
in a solid fuel burning fireplace,
the chimney flue and firebox must
be cleaned of soot, creosote,
ashes and loose paint by a quali-
fied chimney cleaner. Creosote
will ignite if highly heated. In-
spect chimney flue for damage. If
damaged, operate heater with flue
damper closed.
WARNING: Seal any fresh air
vents or ash clean-out doors lo-
cated on floor or wall of fireplace.
If not, drafting may cause pilot
outage or sooting. Use a heat-
resistant sealant. Do not seal
chimney flue damper.
CAUTION: This heater cre-
ates warm air currents. These
currents move heat to wall sur-
faces next to heater. Installing
heater next to vinyl or cloth wall
coverings or operating heater
where impurities in the air (such
as tobacco smoke) exist, may
discolor walls.
IMPORTANT:
Vent-free heaters add mois-
ture to the air. Although this is beneficial,
installing heater in rooms without enough
ventilation air may cause mildew to form
from too much moisture. See Air for Com-
bustion and Ventilation, pages 3 through 5.
CHECK GAS TYPE
Use only propane gas. If your gas supply is
not propane, do not install heater. Call dealer
where you bought heater for proper type
heater.
NOTICE: State or local codes may
only allow operation of this appli-
ance in a vented configuration.
Check your state or local codes.