Desa Comfort Glow BRENTWOOD LCF18 Quick start guide

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WARNING: If the information in this manual is not fol-
lowed exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
— Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire
department.
— Installation and service must be performed by a quali-
fied installer, service agency or the gas supplier.
VENTED DECORATIVE NATURAL GAS LOGS
OWNER’S OPERATION AND INSTALLATION MANUAL
RGA 2-72
APPROVED
TESTED AND
LISTED BY
BRENTWOOD
MODELS LCF18 AND LCF24

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WARNING: Improper installation, adjustment, altera-
tion, service or maintenance can cause injury or prop-
erty damage. Refer to this manual for correct installation
and operational procedures. For assistance or addi-
tional information consult a qualified installer, service
agency or the gas supplier.
WARNING: This appliance is for installation only in
a solid-fuel burning masonry or UL127 factory-built
fireplace, constructed of noncombustible material and
connected to a working flue. (See page 6 for minimum
flue opening.
WARNING: This is a decorative gas appliance. It uses
air (oxygen) from the room in which it is installed. Provi-
sions for adequate combustion and ventilation air must
be provided. Refer to the National Fuel Gas Codes, ANSI
Z233.1/NFPA 54, Section 5.3, Air for Combustion and
Ventilation.
This appliance may be installed in an aftermarket,* per-
manently located, manufactured (mobile) home, where
not prohibited by local codes.
This appliance is only for use with the type of gas indi-
cated on the rating plate.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
State of Massachusetts: The installation must be made
by a licensed plumber or gas fitter in the Commonwealth
of Massachusetts.
TABLE OF CONTENTS
Safety Information ............................................... 3
Product Identification ........................................... 4
Local Codes ........................................................ 4
Unpacking ........................................................... 5
Optional Product Features .................................. 5
Installation ........................................................... 5
Operating Appliance .......................................... 10
Cleaning and Maintenance ................................ 12
Service Hints ..................................................... 12
Technical Service .............................................. 12
Replacement Parts ............................................ 12
Troubleshooting ................................................. 13
Illustrated Parts Breakdown and Parts List ....... 16
Accessories ....................................................... 18
Warranty Information ............................Back Page

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115043-01C 3
WARNING: This appliance
is equipped for natural gas. An
optional propane/LP conversion
kit must be installed for use with
propane/LP gas.
WARNING: Do not allow fans
to blow directly into the fireplace.
Avoid any drafts that alter burner
flame patterns.
WARNING: Installed decora-
tive glass door enclosures must
be fully opened when operating
this gas appliance.
Due to high temperatures, the
appliance should be located out
of traffic and away from furniture
and draperies.
Do not place clothing or other
flammable material on or near
the appliance. Never place any
objects on the appliance.
Appliance assembly becomes
very hot when in use. Keep chil-
dren and adults away from hot
surface to avoid burns or clothing
ignition. Appliance will remain hot
for a time after shutdown. Allow
surface to cool before touching.
Carefully supervise young chil-
dren when they are in the room
with appliance.
You must operate this appliance
with a fireplace screen in place.
Make sure fireplace screen is
closed before running appliance.
Keep the appliance area clear
and free from combustible ma-
terials, gasoline and other flam-
mable vapors and liquids.
SAFETY INFORMATION
WARNING: This product con-
tains and/or generates chemicals
known to the State of California
to cause cancer or birth defects
or other reproductive harm.
WARNING: Keep flue open
when operating unit.
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, operate
or service this log set. Improper use
of this log set can cause serious
injury or death from burns, fire,
explosion, electrical shock and
carbon monoxide poisoning.
DANGER: Carbon monoxide
poisoning may lead to death!
Carbon Monoxide Poisoning: Early signs of
carbon monoxide poisoning resemble the flu, with
headaches, dizziness or nausea. If you have these
signs, the log set may not be working properly. Get
fresh air at once! Have log set serviced. Some
people are more affected by carbon monoxide than
others. These include pregnant women, people with
heart or lung disease or anemia, those under the
influence of alcohol and those at high altitudes.
Natural Gas: Natural gas is odorless. An odor-
making agent is added to the gas. The odor helps
you detect a gas leak. However, the odor added to
the gas can fade. Gas may be present even though
no odor exists.
Make certain you read and understand all warnings.
Keep this manual for reference. It is your guide to
safe and proper operation of this log set.
WARNING: Any change to
this log set or its controls can
be dangerous.
WARNING: Do not use a blow-
er insert, heat exchanger insert or
other accessory not approved for
use with this appliance.

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1. If you smell gas
• shut off gas supply
• do not try to light any appliance
• do not touch any electrical switch; do not use
any phone in your building
• immediately call your gas supplier from a
neighborʼs phone. Follow the gas supplierʼs
instructions
• if you cannot reach your gas supplier, call
the fire department
2. Never install the log set
• in a recreational vehicle
• where curtains, furniture, clothing, or other
flammable objects are less than 42 inches
from the front, top, or sides of the log set
• in high traffic areas
• in windy or drafty areas
3. 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 qualified
chimney cleaner. Creosote will ignite if highly
heated. Inspect chimney flue for damage. If dam-
aged, repair flue before operating appliance.
4. This log set is designed to be smokeless. If
logs ever appear to smoke, turn off appliance
and call a qualified service person. Note:
During initial operation, slight smoking could
occur due to log curing and the burning of
manufacturing residues. You may wish to add
more ventilation by opening a window.
5. To reduce the creation of soot, follow the
instructions in Cleaning and Maintenance,
page 12.
6. The installation and provisions for combustion
and ventilation air must conform with the Na-
tional Fuel Gas Code, ANSI Z233.1/NFPA 54,
Section 5.3, Air for Combustion and Ventilation.
7. Do not run log set
• where flammable liquids or vapors are used
or stored
• under dusty conditions
8. Do not burn solid fuel in the fireplace after
installing the log set. Do not use this log set
to cook food or burn paper or other objects.
9. Do not use appliance if any part has been
exposed to or under water. Immediately call
a qualified service technician to inspect the
room appliance and to replace any part of
the control system (if using GA9050A or
GA9150A) and any gas control which has
been under water.
SAFETY INFORMATION
Continued
10. To help prevent breakage, new logs must be
broken-in (see Curing Logs page 11).
11. Turn log set off and let cool before servicing,
installing, or repairing. Only a qualified ser-
vice person should install, service, or repair
log set.
12. Provide adequate clearances around air
openings.
PRODUCT
IDENTIFICATION
Figure 1 - Product Identification (Dual
Burner Shown)
Hearth Kit Model ____________________
Serial Number ______________________
Log Set Model ______________________
Grate
Burner
Pan
Burner
Manifold Burner Inlet
Fitting
Burner
Clamp
Grate
Steps
LOCAL CODES
Install and use log set with care. Follow all local
codes. In the absence of local codes, use the lat-
est edition of the National Fuel Gas Code ANSI
Z223.1/NFPA 54*.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269

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115043-01C 5
UNPACKING
CAUTION: Do not remove the
data plates from the burner pan.
The data plates contain impor-
tant product information.
1. Remove logs, hearth kit, pan materials, and
hardware from carton.
2. Remove all protective packaging applied to
logs and base for shipment.
3. Check all items for any shipping damage. If
damaged, promptly inform dealer where you
bought the product.
OPTIONAL PRODUCT
FEATURES
ON/OFF SAFETY VALVE/PILOT KIT
AND PROPANE/LP CONVERSION
An optional valve/safety pilot kit with a piezo
ignitor is available for this appliance. This system
requires no matches, batteries, or other sources to
light. You must use this optional system for LP
conversion. See Accessories, page 18.
REMOTE CONTROL READY
(MILLIVOLT) SAFETY VALVE/PILOT
KIT
An optional millivolt valve/safety pilot kit with a
piezo ignitor is available for this appliance. This
system requires no matches, batteries, or other
sources to light. This system may be connected to a
wall switch or hand-held wireless remote control.
See Accessories, page 18.
REMOTE CONTROL ACCESSORIES
There is an optional hand-held ON/OFF remote
control that can be purchased separately for this log
set. You must use the millivolt valve/safety pilot
kit to use remote accessories with this appliance.
See Accessories, page 18.
A wall switch is also available for this appliance.
You must use the millivolt valve/safety pilot kit
to use the wall switch with this appliance. See
Accessories, page 18.
INSTALLATION
CAUTION: Do not remove the
data plates attached to the burner
pan. The data plates contain im-
portant warranty information.
WARNING: Before installing
in a solid fuel burning fireplace,
the chimney flue and firebox
must be cleaned of soot, creo-
sote, ashes and loose paint by a
qualified chimney cleaner. Creo-
sote will ignite if highly heated.
A dirty chimney flue may create
and distribute soot within the
house. Inspect chimney flue for
damage. If damaged, repair flue
before operating appliance.
NOTICE: Installation, service,
and repair of this appliance must
be performed by a qualified in-
staller, service agency, company
or gas supplier experienced with
this type of gas appliance. Only
factory authorized components
listed in these instructions may
be used in accordance with the
manufacturer’s instructions and
all codes and requirements of
the authority having jurisdic-
tion. Any modifications to this
kit, or use of unauthorized
components or accessory items
will void the manufacturer’s
warranty, and may result in a
hazardous condition.
FLUE OPENING SPECIFICATIONS
Note: This vented appliance must be installed only
in a solid-fuel burning fireplace with a working flue
and constructed of noncombustible material.
The charts in Figure 2, page 6 indicate technical
information regarding the installation of your gas
log set. Please make sure that all of the specifica-
tions shown are applicable before installation is
attempted.

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The fireplace must include a working flue and
venting system with the minimum openings shown
in the Figure 2.
INSTALLATION
Continued
Figure 2 - Technical Information Charts
Model
Burner
Descrip-
tion
BTU Input
(Natural
Gas)
Min.
Vent
Opening
LCF18 18" Dual 55,000 8"
LCF24 24" Dual 60,000 8"
Minimum Fireplace Dimensions
Model Front
Width
Back
Width* Depth Height
LCF18 28" 18" 14" 16"
LCF24 29.75" 17" 15.5" 18"
* At depth Indicated
Fuel Inlet Pressure
Specifications (W.C.)
Min. Max.
N.G. 5.5" 10.5"
Burner Orifice Sizing
Log Size Natural Gas
In. Num.
18" .120 31
24" .129 30
CHECK GAS TYPE
Use only natural gas. If your gas supply is not
natural gas, you must install ON/OFF Safety
Valve/Pilot Kit (see Accessories, page 18). Call
dealer where you bought log set.
If the fireplace does not have a gas supply shutoff
valve, one must be installed.
VENTING SPECIFICATIONS FOR
INSTALLATION
The fireplace chimney flue and vent must be draft-
ing properly. To check the vent for proper drafting:
Light a tightly rolled newspaper on one end and
place it at the inside front edge of the fireplace.
Observe the smoke and be sure the vent is properly
drawing it up the chimney. If the smoke spills out
into the room, extinguish the flame and remove any
obstruction until proper venting is achieved.
The chimney flue must remain open a minimum
of 3" at all times during the operation of this
log set.
INSTALLING DAMPER CLAMP
Secure the damper stop clamp provided to the
leading edge of the damper as shown in Figure 3.
If for any reason this clamp doesn't work on your
fireplace, another suitable clamp or permanent
stop must be installed, or the damper blade must
be cut or removed.
CONNECTING TO GAS SUPPLY
WARNING: A qualified ser-
vice person must connect log
set to gas supply. Follow all
local codes.
Installation Items Needed
Before installing log set, make sure you have the
items listed below.
• piping (check local codes)
• sealant (resistant to Propane/LP gas)
• equipment shutoff valve
• test gauge connection
• adjustable (crescent) wrench or pliers
• sediment trap
• tee joint
• pipe wrench
Figure 3 - Attaching Damper Clamp
Damper
Clamp
Damper
Clamp
Damper
Manufactured
Fireplace
Masonry Fireplace
Damper

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115043-01C 7
CAUTION: Use only new,
black iron or steel pipe. Inter-
nally-tinned copper tubing may
be used in certain areas. Check
your local codes. Use pipe of
1/2" diameter or greater to allow
proper gas volume to log set. If
pipe is too small, undue loss of
volume will occur.
Installation must include a equipment shutoff
valve, union, and plugged 1/8" NPT tap. Locate
NPT tap within reach for test gauge hook up.
NPT tap must be upstream from log set (see
Figure 4).
IMPORTANT: Install equipment shutoff valve
in an accessible location. The equipment shutoff
valve is for turning on or shutting off the gas to
the appliance.
INSTALLATION
Continued
Figure 4 - Gas Connection
* Purchase the optional CSA design-certified
equipment shutoff valve from your dealer. See
Accessories, page 18.
** Minimum inlet pressure for purpose of input
adjustment.
Apply pipe joint sealant lightly to male NPT
threads. This will prevent excess sealant from
going into pipe. Excess sealant in pipe could result
in a clogged burner injector.
WARNING: Use pipe joint
sealant that is resistant to liquid
petroleum (LP) gas.
We recommend that you install a sediment trap in
supply line as shown in Figure 4. Locate sediment
trap where it is within reach for cleaning. Install in
piping system between fuel supply and appliance.
Locate sediment trap where trapped matter is not
likely to freeze. A sediment trap traps moisture and
contaminants. This keeps them from going into log
set controls. If sediment trap is not installed or is
installed wrong, log set may not run properly.
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping
and connections, internal and
external to unit, for leaks after
installing or servicing. Correct
all leaks at once.
WARNING: Never use an open
flame to check for a leak. Apply
a noncorrosive leak detection
fluid to all joints. Bubbles form-
ing show a leak. Correct all leaks
at once.
PRESSURE TESTING GAS SUPPLY
PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
1. Disconnect log set and its individual equipment
shutoff valve from gas supply piping system.
2. Cap off open end of gas pipe where equipment
shutoff valve was connected.
3. Pressurize supply piping system by either us-
ing compressed air or opening main gas valve
located on or near gas meter.
4. Check all joints of gas supply piping system.
Apply noncorrosive leak detection fluid to gas
joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect log set and equipment shutoff
valve to gas supply. Check reconnected fit-
tings for leaks.
3" Minimum
Sediment Trap
From Gas Meter
(5" W.C.** to
10.5" W.C.
Pressure)
CSA Design-Certified
Equipment Shutoff Valve
With 1/8" NPT Tap*
Approved Flexible Gas Hose (if
allowed by local codes)
Tee Joint
Pipe Nipple
Cap

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Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 5).
2. Pressurize supply piping system by either us-
ing compressed air or opening main gas valve
located on or near gas meter.
3. Check all joints from gas meter to equipment
shutoff valve (see Figure 5). Apply noncorro-
sive leak detection fluid to gas joints. Bubbles
forming show a leak.
4. Correct all leaks at once.
INSTALLATION
Continued
Figure 5 - Checking Gas Joints
HEARTH KIT ASSEMBLY AND
INSTALLATION
1. Determine which side the gas line will be coming
into the fireplace.
2. Using a hammer and screw driver, remove
knockout plug from the side of the pan that
corresponds to the gas line (see Figure 6).
3. Unscrew burner inlet fitting from burner
manifold.
4. Place burner manifold in pan with threaded
opening facing open knockout plug.
5. Using thread sealant (resistant to the action
of propane/LP gas) on larger end of fitting,
screw the burner inlet fitting through hole and
into burner manifold (see Figure 6). Tighten
using a wrench.
6. Using burner clamp, screw, and nut provided,
assemble clamp to pan (“U” style and triple
burners only). This will hold the burner mani-
fold in place.
7. If using optional GA9050A kit, go to Optional
GA9050A On/Off Safety Valve/Pilot Kit section
for installation instructions. If using optional
GA9150A kit, follow instructions included
with kit for installation and operation.
Figure 7 - Connecting Gas to Appliance
Adapter
Fitting
Gas
Connector
Tube
Burner Pan Assembly
(Facing Front of
Fireplace)
Figure 6 - Installing Burner
Burner Inlet
Fitting
Screw
Nut Burner
Clamp
Burner Pan
(Front)
Burner Manifold
Knockout
Plugs
Installation and Gas Connection
1. Place the burner pan assembly in the center
of the fireplace floor. Make sure the front of
pan faces forward.
2. Thread the gas supply fitting to the fireplace
gas supply pipe. Use thread sealant.
3. Install adapter fitting onto the burner inlet
fitting using thread sealant on male threads
of burner inlet fitting (see Figure 7). Adjust
to most convenient position.
4. Install the gas connector tube to the gas sup-
ply fitting. Carefully shape tube to attach to
adapter fitting. Be careful not to cause kinks
in tube.
Gas Meter
Equipment Shutoff Valve

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115043-01C 9
INSTALLATION
Continued
OPTIONAL GA9050A ON/OFF
SAFETY VALVE/PILOT KIT
For additional convenience and safety, or for
propane/LP conversion, an optional ON/OFF
safety valve/pilot kit is available. See Accessories,
page 18.
WARNING: You must use a
ON/OFF safety valve/pilot kit for
propane/LP conversion.
TESTING BURNER FOR LEAKS
1. Generously apply noncorrosive leak detec-
tion fluid to all connections.
WARNING: Never check for
gas leaks with open flame.
2. Light the burner with the shutoff valve no
more than half open and holding a match
slightly in front of the pan (see Lighting
Instructions, page 10).
3. Inspect all connections for bubbles, raw gas
odor, or flame from any area other than the
burner (leaks). If leaks are detected, shut off
the gas valve immediately. Tighten, or reas-
semble the loose connection(s) using pipe joint
compound until burner system is leak free.
4. When the burner is tested and leak free,
observe the individual tongues of flame on
the burner. Note: The burner design includes
more ports on the outside of the bar. Make
sure that all ports are clear and producing
flame evenly across the burner. If any ports
appear blocked, clear them by removing the
burner manifold and reaming the ports with a
modified paper clip or other suitable tool.
5. When finished testing, turn the gas shutoff
valve OFF to extinguish all flames.
ADDING PAN MATERIAL
1. Open the bag of ash bed material (vermiculite)
and spread it evenly across the burner pan
to the top. You may overflow the front and
sides of the pan to cover the entire pan and
connecting hardware. Do not cover GA9050A
or GA9150A valve.
2. Open the glowing embers and evenly cover the
ash bed material (vermiculite) in the burner pan.
INSTALLING THE GRATE AND LOGS
1. Place the grate over the burner pan where the
two outer horizontal supports on the grate fit
into the two pan positioning notches in the
rear vertical edge of the pan.
2. Slide the two rear log grate steps over the
two outer horizontal supports on the grate as
shown in Figure 8.
3. Place the back log onto the grate steps (see
Figure 9).
4. Place the front log(s) on the grate and slide
forward against the front bars on the grate
(see Figure 9).
5. Place three middle logs on top of bottom logs
(see Figure 10, page 10).
6. Place the smaller top logs onto the bottom logs
(see Figure 11, page 10). Leave as much open
space between logs as possible to minimize
flame impingement and sooting. Note: Logs
may chip if they are handled roughly or if hit
together while being placed.
Figure 8 - Installing Grate (Pan Material
Not Shown)
Grate
Grate Steps
Figure 9 - Installing Bottom Logs

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INSTALLATION
Continued
Figure 11 - Installing Top Logs
Figure 10 - Installing Middle Logs
OPERATING APPLIANCE
FOR YOUR SAFETY
READ BEFORE LIGHTING
WARNING: Keep flue open
when operating unit.
WARNING: If you do not fol-
low these instructions exactly,
a fire or explosion may result
causing property damage, per-
sonal injury or loss of life.
BEFORE LIGHTING smell all around the
appliance area for gas. Be sure to smell next to
the floor because some gas is heavier than air
and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do not use
any phone in your building.
• Immediately call your gas supplier from a
neighborʼs phone. Follow the gas supplierʼs
instructions.
• If you cannot reach your gas supplier, call
the fire department.
LIGHTING
INSTRUCTIONS
1. STOP! Read the safety information, above.
2. Turn the gas shutoff valve to OFF.
3. Wait five (5) minutes to clear out any gas. If
you then smell gas STOP! Follow the safety
information above. If you don't smell gas,
go on to the next step.
4. Light a match and lay it on top of the pan
material about 2" from the end of the sup-
ply side of the pan
5. Slowly turn the gas shutoff valve ON until
the burner ignites. If the burner doesnʼt
ignite within 10 seconds with the match
burning, turn the shutoff valve OFF and
repeat steps 1 through 4 again.
GAS SHUTOFF
VALVE OPERATION
Flame Adjustment
Adjust the flame ON/OFF by turning the gas
shutoff valve counterclockwise to open or
clockwise to close, as necessary.