Lennox Hearth CR-3835R Indoor Fireplace User Manual


 
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NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE
3. The metal chimney sections extending from
the firebox top to beyond your roof are two
walled and air-cooled. The inner passage, or
flue, provides the exit for smoke and gases.
4. The flue damper is either fully open or fully
closed by the handle you find in the center and top
of the firebox. It must be open when fire is present
so smoke and gases can escape. It should be
closed only when the fire is completely out –
keeping room air from being lost up the flue.
5. Closed screens prevent fire, sparks and
embers from popping out of the firebox while
a fire is burning. Pull screens back when
adding wood to the firebox.
6. Why use a fuel grate? Besides positioning
the firebed properly, it protects the refractory
floor, back and sides of the fireplace. Further, it
ensures a proper flow of combustion air into
and around the firebed. The grate must be used
at all times when burning. Your warranty may
be voided without the use of this grate.
7. Remember, your fireplace is not intended to
heat your entire home. Their unique designs
are intended for architectural, decorating and
aesthetic considerations.
FUELS
Never Use Coal in Your Fireplace
Your fireplace system is not designed to be
used with coal derivative products. The com-
bustion process of certain types of coal can
deposit corrosive materials in the fireplace and
chimney system which can lead to premature
product failure. Never use coal as a fuel in this
fireplace system.
Decorative Gas Log Sets
If your fireplace system was installed with a gas
line and you wish to install a decorative gas
appliance (gas log set), it must contain an
automatic shut-off device and be installed in
accordance with local codes and/or the Na-
tional Fuel Gas Code, ANSI Z223.1A and
NFPA-54-1988.
CAUTION: WHEN USING THE DECORATIVE
GAS APPLIANCE, THE FIREPLACE DAMPER
MUST BE SET IN THE FULLY OPEN POSITION.
TABLE OF CONTENTS
Safety precautions .............................page 2
General information ...........................page 2
Fuels ..................................................page 2
Decorative gas log sets......................page 2
Disposal of ashes ..............................page 3
Softwood vs hardwood...................... page 3
Starting a fire .....................................page 4
Glass doors .......................................page 4
Combustion Air .................................page 5
Refractories .......................................page 6
Maintenance Guidelines..................... page 6
Twice a year check-up .......................page 6
Creosote Formation and Removal......page 6
Trouble shooting ...............................page 7
Accessories & Components...............page 7
Replacement Parts List...................... page 8
GENERAL SAFETY PRECAUTIONS
IMPORTANT! READ AND UNDER-
STAND BEFORE YOUR FIRST FIRE.
1. Use SOLID WOOD only for fuel. It is best to
use dry and well seasoned hardwood. Soft
woods tend to burn very quickly. DO NOT use
treated wood, charcoal, coal, trash, driftwood
or woods that have been dipped in tar, pitch,
pine tar, creosote, etc. Wood products made
with synthetic binders, such as plywood, pro-
duce abnormally high temperatures and
sputtering, smoking fires. When burning arti-
ficial logs, please read and follow the
instructions provided by the manufacturer.
Never burn treated construction lumber or
scraps. These woods burn excessively hot
and may contain chemicals used to treat
insects and fungus. When burned, these
chemicals can pose a significant hazard.
2. NEVER use gasoline, gasoline-type lantern
fuel, kerosene, charcoal lighter fluid, or similar
liquids to start or “freshen up” a fire in this
fireplace. Keep any flammable liquids a safe
distance from the fireplace.
3. Keep the chimney damper open while any
fire or smoldering embers are present .
4. Never block or restrict the room air intake
grille across the bottom front or the warm air
outlet grille across the top front of the fireplace.
5. With the fire burning, close the protective
mesh screens to keep sparks and embers IN-
SIDE the firebox.
6. Keep any combustible furniture or decora-
tive pillows at least 36" (914 mm) from the
fireplace opening.
7. Never leave your fireplace unattended while
it is burning.
8. Be careful adding wood fuel to the fire or
handling fireplace tools such as shovels, tongs
or pokers.
9. Never modify or alter your fireplace system
in any way. To do so may create a potential fire
hazard and void the Limited Warranty.
10. The bottom refractory can be cracked by
excessive abuse such as tossing heavy logs onto
the grate or gouging with fireplace tools. Exer-
cise caution when adding wood to your fireplace.
11. DO NOT use a fireplace insert or any other
product not specified by the manufacturer for
use with this fireplace.
12. If you are using your fireplace as a “deco-
rative appliance”, such as with a permanently
installed gas log set, the fireplace damper must
be permanently fixed in the open position.
13. Always ensure that an adequate supply of
replacement combustion air from the outside
of the house is accessible to the fire to support
normal combustion. Fireplaces consume large
volumes of air during the normal combustion
process. In the event the home is tightly sealed
with modern energy efficient features, an op-
tional combustion air kit may not provide all
the air required to support combustion. The
manufacturer is not responsible for any smok-
ing or related problems that may result from
the lack of adequate combustion air. It is the
responsibility of the builder/contractor to en-
sure that adequate combustion air has been
provided for the fireplace.
14. The manufacturer does not warranty “smoke
free” operation nor are we responsible for inad-
equate system draft caused by mechanical
systems, general construction conditions, in-
adequate chimney heights, adverse wind
conditions and/or unusual environmental fac-
tors or conditions beyond our control.
GENERAL INFORMATION
1. The all-steel, multi-wall firebox is the heat
center of the system. It is well insulated for safe
clearance to combustibles.
2. The hearth floor of the firebox is a brick
pattern reinforced refractory base for your fire.
On certain models, the sides and rear of the
firebox are also refractory for authenticity and
safety.
WARNING: THIS FIREPLACE HAS NOT
BEEN TESTED WITH AN UNVENTED GAS
LOG SET. TO REDUCE RISK OF FIRE OR
INJURY, DO NOT INSTALL AN UNVENTED
GAS LOG SET INTO THIS FIREPLACE.