Desa Comfort Glow BRENTWOOD LCF18 Quick start guide

Save this manual for future reference.
For more information, visit www.desatech.com
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

www.desatech.com 115043-01C
2
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

www.desatech.com
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.

www.desatech.com 115043-01C
4
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

www.desatech.com
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.

www.desatech.com 115043-01C
6
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

www.desatech.com
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

www.desatech.com 115043-01C
8
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

www.desatech.com
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

www.desatech.com 115043-01C
10
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.

www.desatech.com
115043-01C 11
Shutting Off Appliance
Turn gas shutoff valve clockwise to the
OFF position.
CURING
LOGS
During the 2-3 hour appliance break-in period,
you may detect an odor from the appliance
as the various paints and compounds used in
the manufacturing of this log set cure. This is
a normal and temporary situation that is not
cause for alarm. However, you may want to
provide extra ventilation to the room during
this time.
To ensure proper curing of the logs:
• Ignite a 2" flame and maintain it for 1
hour.
• Burn the logs in consecutive 1 hour periods
raising the flame an additional 2" to full
flame height for a total of three hours.
OPERATING
INSTRUCTIONS
FOR GA9050A
Note: Operation instructions for GA9150A
Remote Ready Valve/Pilot Kit will be included
with the kit.
1. STOP! Read the safety information, page 10.
2. Make sure equipment shutoff valve is fully
open.
3. Press in and turn control knob clockwise
to the OFF position.
4. Wait five (5) minutes to clear out any gas.
Then smell for gas around log set and near
floor. If you smell gas, STOP! Refer to the
National Fuel Gas Codes, ANSI Z233.1/
NFPA 54, Section 5.3, Air for Combustion
and Ventilation. If you donʼt smell gas, go
to the next step.
5. Turn control knob counterclockwise
to the PILOT position and press in. Keep
control knob pressed in for five (5) seconds.
Note: You may be running this log set for
the first time after hooking up to gas sup-
ply. If so, the control knob may need to be
pressed in for 30 seconds. This will allow
air to bleed from the gas system.
• If control knob does not pop up when
released, contact a qualified service person
or gas supplier for repairs.
OPERATING APPLIANCE
Continued
6. With control knob pressed in, push down
and release ignitor button. This will light
pilot. The pilot is attached to the rear of
the front burner. If needed, keep pressing
ignitor button until pilot lights.
Note: If pilot does not stay lit, contact a
qualified service person or gas supplier for
repairs. Until repairs are made, light pilot
with match.
7. Keep control knob pressed in for 30 seconds
after lighting pilot. After 30 seconds, release
control knob.
Note: If pilot goes out, repeat steps 3
through 7.
8. Turn control knob counterclockwise
to the ON position. Burner should light. If
burner does not light, call a qualified service
person.
Ignitor
Control Knob
Pilot
FROM "PILOT" POSITION
SLIGHT PUSH TO
TURN OFF
PULL PUSH
TO LIGHT
ON
ON
FROM "PILOT" POSITION
SLIGHT PUSH TO
TURN OFF
PULL PUSH
TO LIGHT
FROM "PILOT" POSITION
SLIGHT PUSH TO
TURN OFF
PULL PUSH
TO LIGHT
ON OFF
On Off
OFF
OFF
Figure 12 - Ignitor and Control Knob
Figure 13 - Thermocouple and Pilot
Pilot
Burner
Thermocouple
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Appliance
1. Turn control knob clockwise to the
PILOT position.
2. Press in and turn control clockwise
to the OFF position.
Shutting Off Burner Only (pilot stays lit)
Turn control knob clockwise to the
PILOT position.

www.desatech.com 115043-01C
12
CLEANING AND
MAINTENANCE
• Keep the area around the log set clean and clear
of debris.
• Occasionally, you may use a soft bristle brush
to clean logs.
• Once every year a qualified agency or certified
chimney sweep should examine and clean the
venting system of the fireplace.
SERVICE HINTS
When Gas Pressure is Too Low
• pilot will not stay lit
• burners will have delayed ignition
• appliance will not produce specified heat
You may feel your gas pressure is too low. If so,
contact your local natural gas supplier.
TECHNICAL SERVICE
You may have further questions about installation,
operation, or troubleshooting. If so, contact DESAʼs
Technical Service Department at 1-866-672-6040.
When calling please have your model and serial
numbers of your appliance ready.
You can also visit DESAʼs technical services web
site at www.desatech.com.
REPLACEMENT PARTS
Note: Use only original replacement parts. This
will protect your warranty coverage for parts
replaced under warranty.
PARTS UNDER WARRANTY
Contact authorized dealers of this product. If they
canʼt supply original replacement part(s), call DESAʼs
Technical Service Department at 1-866-672-6040.
When calling DESA, have ready:
• your name and address
• model and serial numbers of your log set
• how log set was malfunctioning
• type of gas used (natural gas)
• purchase date
Usually, we will ask you to return the part to the
factory.
PARTS NOT UNDER WARRANTY
Contact authorized dealers of this product. If they
canʼt supply original replacement part(s), call
DESA at 1-866-672-6040 for referral information.
When calling DESA, have ready
• model number of your log set
• the replacement part number

www.desatech.com
115043-01C 13
TROUBLESHOOTING
WARNING: Turn off log set and let cool before servicing. Only a
qualified service person should service and repair log set.
Note: All troubleshooting items are listed in order of operation.
POSSIBLE CAUSE
1. Poor fuel quality
2. Fireplace venting system not
drafting properly
3. Excessive flame impingement
or blockage
4. Improper fuel/air mixture
5. Excessive gas supply/pres-
sure
1. Passage of air/gas across ir-
regular surfaces
1. Incorrect gas supply or
pressure
2. Blocked burner orifice or
burner manifold ports
3. Improper burner orifice size
1. Ignitor electrode not con-
nected to ignitor cable
2. Ignitor cable pinched or wet
3. Bad ground on piezo ignitor
4. Broken ignitor cable
5. Bad piezo ignitor
6. Ignitor electrode broken
7. Ignitor electrode positioned
wrong
OBSERVED PROBLEM
Log set is smoking/sooting ex-
cessively (Note: It is natural and
unavoidable for vented gas log
sets to produce moderate levels
of carbon (soot) where flames
contact the logs.
Burner is excessively noisy
(Note: The movement and com-
bustion of gas will create low,
unavoidable levels of noise.)
Burner flame is too low or too
high
When ignitor button is pressed,
there is no spark at pilot
(GA9050A Only)
REMEDY
1. Contact local natural or pro-
pane/LP gas company
2. Adjust damper wide open and/or
have fireplace and venting pro-
fessionally cleaned and checked
3. Separate the logs to allow more
flame passage
4. Remove any foreign items from
the flame pattern and/or check
for proper orifice sizing
5. Preheat flue in very cold
weather
1. Relieve any tight bends or
kinks in gas supply line
1. Check for proper gas supply
pressure
2. Free burner orifice and mani-
fold ports of any burrs, paint,
or other blockage
3. Verify proper burner orifice
sizing (see Figure 2, page 6)
1. Reconnect ignitor cable
2. Free ignitor cable if pinched
by any metal or tubing. Keep
ignitor cable dry
3. Scrape away paint on bracket
for better contact with ground
on piezo ignitor
4. Replace ignitor cable
5. Replace piezo ignitor
6. Replace electrode
7. Reposition electrode

www.desatech.com 115043-01C
14
TROUBLESHOOTING
Continued
POSSIBLE CAUSE
1. Gas supply turned off or equip-
ment shutoff valve closed
2. Control knob not in PILOT
position
3. Control knob not pressed in
while in PILOT position
4. Air in gas lines when in-
stalled
5. Pilot adjustment screw
closed
6. Pilot is clogged
7. Low gas pressure
1. Control knob not fully
pressed in
2. Control knob not pressed in
long enough
3. Equipment shutoff valve not
fully open
4. Pilot flame not touching
thermocouple, which allows
thermocouple to cool, caus-
ing pilot flame to go out. This
problem could be caused by
one or both of the following:
A) Low gas pressure
B) Dirty or partially clogged
pilot
5. Thermocouple connection
loose at control valve
6. Thermocouple damaged
7. Control valve damaged
1. Burner orifice clogged
2. Inlet gas pressure is too low
3. Thermocouple leads dis-
connected or improperly
connected
1. Pilot flame needs adjusting
2. Wrong pilot orifice
OBSERVED PROBLEM
When ignitor button is pressed,
there is spark at pilot but no igni-
tion (GA9050A Only)
Pilot lights but flame goes out
when control knob is released
(GA9050A Only)
Burner does not light after pilot
is lit (GA9050A Only)
Delayed ignition burner
(GA9050A Only)
REMEDY
1. Turn on gas supply or open
equipment shutoff valve
2. Turn control knob to PILOT
position
3. Press in control knob while in
PILOT position
4. Continue holding down control
knob. Repeat igniting opera-
tion until air is removed
5. Adjust pilot flame for approxi-
mately 2" blue flame
6. Clean pilot (see Cleaning and
Maintenance, page 12) or
replace pilot assembly
7. Replace gas control
1. Press in control knob fully
2. After pilot lights, keep control
knob pressed in 30 seconds
3. Fully open equipment shutoff
valve
4. A) Contact local natural gas
company
B) Clean pilot (see Cleaning
and Maintenance, page 12) or
replace pilot assembly
5. Hand tighten until snug, then
tighten 1/4 turn more
6. Replace thermocouple
7. Replace control valve
1. Clean burner orifice
2. Contact local natural gas
company
3. Reconnect leads
1. Adjust pilot flame for approxi-
mately 2" blue flame
2. Replace pilot orifice set

www.desatech.com
115043-01C 15
TROUBLESHOOTING
Continued
POSSIBLE CAUSE
1. Metal expanding while heating
or contracting while cooling
1. Log Set burning vapors from
paint, hair spray, glues, clean-
ers, chemicals, new carpet,
etc. (See IMPORTANT state-
ment above)
2. Gas leak. See Warning
statement at top of page
1. Gas leak. See Warning
statement at top of page
2. Control valve defective
1. Gas leak. See Warning
statement at top of page
OBSERVED PROBLEM
Log Set produces a clicking/tick-
ing noise just after burner is lit
or shut off
Log Set produces unwanted
odors
Gas odor even when control knob
is in OFF position
Gas odor during combustion
REMEDY
1. This is common with most log
sets. If noise is excessive, con-
tact qualified service person
1. Open flue to maximum. Stop
using odor causing products
while log set is running
2. Locate and correct all leaks
(see Checking Gas Connec-
tions, page 7)
1. Locate and correct all leaks
(see Checking Gas Connec-
tions, page 7)
2. Replace control valve
1. Locate and correct all leaks
(see Checking Gas Connec-
tions, page 7)
WARNING: 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 neighbor’s phone. Fol-
low the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
IMPORTANT: Operating log set where impurities in air exist may create odors. Cleaning supplies, paint,
paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc., create fumes. These
fumes may mix with combustion air and create odors. These odors will disappear over time.

www.desatech.com 115043-01C
16
ILLUSTRATED PARTS BREAKDOWN
MODELS LCF18 AND LCF24
3
13
1
8
6
4
2
10
7
5
9
9
11
12
14
20
15
16
19
18
17

www.desatech.com
115043-01C 17
PARTS LIST
This list contains replaceable parts used in your log set. When ordering parts, follow the instructions
listed under Replacement Parts on page 12 of this manual.
KEY
NO.
PART NUMBER
DESCRIPTION QTY.LCF18 LCF24
1 901056-01 901056-01 3/8 FLR x 1/2 FPT Adapter 1
2 901059-01 901059-01 3/8 FLR x 3/8 FPT Adapter 1
3 901066-01 901066-01 Brass Air Mixer - Natural Gas 1
4 901064-02 901064-03 Natural Gas Injector 1
5 901207-01 901207-01 Burner Manifold 1
6 901137-01 901137-02 Burner Pan 1
7 901242-01 901242-01 Damper Clamp - Std. Assy 1
8 101628-01 101628-01 Gas Line - 10" Flex 1
9 901431-01 901431-01 Grate Steps 2
10 901246-01 901246-02 Log Grate 1
11 901681-01 901681-01 Burner Strap 1
12 901078-01 901078-01 Nut #8/32 1
13 901076-01 901076-01 Screw #8/32 x 3/8 1
14 115049-01 115052-01 Front Bottom Log 1
15 901111-01 901111-02 Rear Bottom Log 1
16 115050-01 115050-01 Top Log 1
17 115051-01 115051-01 Top Log 1
18 901090-01 901090-01 Top Log 1
19 901126-01 901126-01 Top Log 1
20 — 901094-01 Top Log 1
PARTS AVAILABLE — NOT SHOWN
901156-01 901156-01 .125# Bag Embers 1
901155-01 901155-01 1.5# Bag Ash Bed Material (Vermiculite) 1

www.desatech.com 115043-01C
18
ACCESSORIES
Purchase these log set accessories from your local
dealer. If they can not supply these accessories, call
DESA at 1-866-672-6040 for referral information.
You can also write to the address listed on the back
page of this manual.
EQUIPMENT SHUTOFF VALVE
GA5010
For all models. Equipment shutoff valve with
1/8" NPT tap. Fits 1/2" NPT pipe.
RECEIVER AND HAND-HELD
ON/OFF REMOTE CONTROL KIT
HRC101
For all models. Allows the gas log set to be turned
on and off by using the hand-held remote control.
A wall mounted docking station is included.
Valve/Pilot Kit GA9150A must be purchased to
use this remote.
WALL-MOUNT ON/OFF SWITCH
GWMS2 (Not Shown)
For all models. Allows the gas log set to be turned
on and off with a wall switch. Valve/Pilot Kit
GA9150A must be purchased to use this remote.
MANUAL CONTROL ON/OFF SAFETY
VALVE/PILOT KIT - GA9050A
(Not Shown)
For all models. Contains components for pro-
pane/LP conversion.
REMOTE CONTROL READY ON/
OFF SAFETY VALVE/PILOT KIT
GA9150A (Not Shown)
For all models. Required for remote control
operation. Contains components for propane/LP
conversion.
INDIVIDUAL ROUND LOG - GA9450A
(Not Shown)
For decorative purposes only. Not to be used as
additional logs on unit.
INDIVIDUAL SPLIT LOG - GA9550A
(Not Shown)
For decorative purposes only. Not to be used as
additional logs on unit.
PINE CONES - GA9650A
(Not Shown)
For all models. Use for additional decoration only.
(3 pine cones per box).
ASH BED MATERIAL VERMICULITE)
GA9750A (Not Shown)
For all models. Use for firebox decoration only.
GLOWING EMBERS - GA9950A
(Not Shown)
For all models. Use for firebox decoration only.
SILICA SAND - GA9850A
(Not Shown)
For all models. Use for firebox decoration only.
LAVA ROCK - GA6067A
(Not Shown)
For all models. Use for firebox decoration only.
DECORATIVE ASH BED CONTROL
COVER - CDABKA (Not Shown)
An attractive way to cover control knob and
piezo ignitor.
18" ORNAMENTAL GRATE
ENHANCER - GA9350A
(Not Shown)
For 18" models only. Additional decoration for
front grate.
24" ORNAMENTAL GRATE
ENHANCER - GA9360A
(Not Shown)
For 24" models only. Additional decoration for
front grate.
FIRE CRACKLE - CF6-A
(Not Shown)
For all models. Creates the sound of a real burn-
ing fire.

www.desatech.com
115043-01C 19
NOTES
_____________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
_____________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
_____________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________

2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004
www.desatech.com
NOT A UPC
115043-01
Rev. C
06/05
115043 01
WARRANTY INFORMATION
KEEP THIS WARRANTY
Model
Serial No.
Date Purchased
Always specify model and serial numbers when communicating with the factory.
We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our
standard written warranty. We make no other warranty, expressed or implied.
LIMITED WARRANTY - VENTED GAS LOGS
DESA warrants this product to be free from defects in materials and components of the burner system for two
(2) years and a lifetime on logs from the date of first purchase, provided that the product has been properly
installed, operated and maintained in accordance with all applicable instructions. To make a claim under this
warranty the Bill of Sale or cancelled check must be presented.
This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s) required
to restore this log set to proper operating condition and an allowance for labor when provided by a DESA Au-
thorized Service Center. Warranty part(s) MUST be obtained through authorized dealers of this product and/or
DESA who will provide original factory replacement parts. Failure to use original factory replacement parts
voids this warranty. The log set MUST be installed by a qualified installer in accordance with all local codes
and instructions furnished with the unit.
This warranty does not apply to parts that are not in original condition because of normal wear and tear, or parts
that fail or become damaged as a result of misuse, accidents, lack of proper maintenance or defects caused by
improper installation. Travel, diagnostic cost, labor, transportation and any and all such other costs related to
repairing a defective log set will be the responsibility of the owner.
TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE
OF THE PRODUCT; THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED
WARRANTIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES, INCLUDING
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO FOUR (4)
YEARS ON burner system and a lifetime on logs FROM THE DATE OF FIRST PURCHASE; AND DESAʼS
LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND DESA SHALL
NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT, INCIDENTAL
OR CONSEQUENTIAL DAMAGES.
Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of
incidental or consequential damages, so the above limitation on implied warranties, or exclusion or limitation
on damages may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights that vary from state to state.
For information about this warranty write: