Desa Sgs3124na18and24 113101 01C User Manual 21253eab A6b2 0e84 314b 7459f827fbd8

User Manual: desa sgs3124na18and24 Desa Water Heater CGS2718PA, CGS2718NA, CGS3124PA, CGS3124NA, SGS3124PA, SGS3124NA,CLD3018PTA, CLD3018NTA, CLD3924NTB, CLD3924PTB User Guide |

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ROYAL ENGLISH OAK AND WINCHESTER OAK UNVENTED
(VENT-FREE) GAS LOG HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL

Patent Pending

18" AND 24" VARIABLE MANUALLY-CONTROLLED MODELS
CGS2718PA, CGS2718NA, CGS3124PA, CGS3124NA
SGS3124PA, SGS3124NA
18" AND 24" THERMOSTATICALLY-CONTROLLED MODELS
CLD3018PTA, CLD3018NTA CLD3924PTB, CLD3924NTB
Variable Manually-Controlled Models Also Design-Certiﬁed as
Vented Decorative Appliances

WARNING: If the information in this manual is not followed 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 qualiﬁed installer, service agency or the gas supplier.
Save this manual for future reference.
For more information, visit www.desatech.com

WARNING: Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual for correct installation
and operational procedures. For assistance or additional 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 or in a listed ventless ﬁrebox enclosure. It is design-certiﬁed for these installations in accordance with
ANSI Z21.11.2. Exception: Do not install this appliance
in a factory-built ﬁreplace that includes instructions
stating it has not been tested or should not be used with
unvented gas logs.
WARNING: This is an unvented gas-ﬁred heater. It uses
air (oxygen) from the room in which it is installed. Provisions for adequate combustion and ventilation air must
be provided. Refer to Air for Combustion and Ventilation
section on page 5 of this manual.
This appliance may be installed in an aftermarket,* permanently located, manufactured (mobile) home, where
not prohibited by local codes.
This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer

TABLE OF CONTENTS
Safety Information ............................................... 3
Product Identiﬁcation ........................................... 4
Local Codes ........................................................ 5
Unpacking ........................................................... 5
Product Features ................................................. 5
Air For Combustion and Ventilation ..................... 5
Installation ........................................................... 8
Operating Heater ............................................... 18
Inspecting Burners ............................................ 22
Cleaning and Maintenance ................................ 23

Technical Service .............................................. 24
Service Hints ..................................................... 24
Replacement Parts ............................................ 24
Troubleshooting ................................................. 25
Optional Positioning of Thermostat Sensing Bulb ... 29
Speciﬁcations .................................................... 30
Accessories ....................................................... 31
Parts Central ..................................................... 31
Illustrated Parts Breakdown and Parts List ....... 32
Warranty Information ...........................Back Cover

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113101-01C

SAFETY INFORMATION
WARNING: This product contains and/or generates chemicals
known to the State of California
to cause cancer or birth defects
or other reproductive harm.
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, operate or service this ﬁreplace.
Improper use of this ﬁreplace
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 ﬁreplace may not be working properly.
Get fresh air at once! Have ﬁreplace 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 and Propane/LP Gas: Natural and propane/
LP gases are odorless. An odor-making agent is
added to these gases. 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 ﬁreplace.

WARNING: Do not allow fans
to blow directly into the ﬁreplace.
Avoid any drafts that alter burner
ﬂame patterns. Ceiling fans can
create drafts that alter burner
ﬂame patterns. Altered burner
patterns can cause sooting.
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 heater.
Heater base assembly becomes
very hot when running heater.
Keep children and adults away
from hot surface to avoid burns
or clothing ignition. Heater
will remain hot for a time after
shutdown. Allow surface to cool
before touching.
Carefully supervise young children when they are in the room
with heater. When using the handheld remote accessory, keep selector switch in the OFF position
to prevent children from turning
on burners with remote.

WARNING: Any change to
this heater or its controls can
be dangerous.

You must operate this heater
with a ﬁreplace screen in place.
Make sure ﬁreplace screen is
closed before running heater.

WARNING: Do not use a
blower insert, heat exchanger
insert or other accessory not approved for use with this heater.

Keep the appliance area clear
and free from combustible materials, gasoline and other ﬂammable vapors and liquids.

113101-01C

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SAFETY INFORMATION
Continued
1. This appliance is only for use with the type of
gas indicated on the rating plate. This appliance
is not convertible for use with other gases.
2. Do not place propane/LP supply tank(s) inside any structure. Locate propane/LP supply
tank(s) outdoors (propane/LP units only).
3. To prevent performance problems, the use
of a propane/LP tank of less than 100 lbs.
capacity is not recommended (propane/LP
units only).
4. 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
5. This heater shall not be installed in a bedroom
or bathroom unless installed as a vented appliance (Variable Manually-Controlled Models
Only) (see Installing Damper Clamp Accessory for Vented Operation, page 12).
6. Do not burn solid-fuel in a masonry or UL127
factory-built ﬁreplace in which a vent-free
room heater is installed.
7. 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. A dirty chimney
ﬂue may create and distribute soot within
the house. Inspect chimney ﬂue and ﬁrebox
for damage. If damaged, repair ﬂue before
operating heater.
8. If ﬁreplace has glass doors, never operate this
heater with glass doors closed. If you operate
heater with doors closed, heat buildup inside ﬁreplace will cause glass to burst. Make sure there are
no obstructions across openings of ﬁreplace.
9. This log heater is designed to be smokeless. If
logs ever appear to smoke, turn off heater and
call a qualiﬁed service person. Note: During
initial operation, slight smoking could occur
due to log curing and heater burning manufacturing residues.
10. To prevent the creation of soot, follow the
instructions in Cleaning and Maintenance,
page 23.
4

11. Before using furniture polish, wax, carpet
cleaner or similar products, turn heater off. If
heated, the vapors from these products may
create a white powder residue within burner
box or on adjacent walls or furniture.
12. This heater needs fresh, outside air ventilation
to run properly. This heater has an Oxygen Depletion Sensing (ODS) safety shutoff system.
The ODS shuts down the heater if not enough
fresh air is available. See Air for Combustion
and Ventilation, page 5. If heater keeps shutting
off, see Troubleshooting, page 25.
13. Do not run heater
• where ﬂammable liquids or vapors are
used or stored
• under dusty conditions
14. Do not use this heater to cook food or burn
paper or other objects.
15. Do not use heater if any part has been exposed
to or under water. Immediately call a qualiﬁed
service technician to inspect the room heater
and to replace any part of the control system
and any gas control which has been under
water.
16. Do not operate heater if any log is broken. Do
not operate heater if a log is chipped (dimesized or larger).
17. Turn heater off and let cool before servicing.
Only a qualiﬁed service person should service
and repair heater.
18. Operating heater above elevations of 4,500
feet could cause pilot outage.
19. Provide adequate clearances around air
openings.

PRODUCT
IDENTIFICATION

Figure 1 - Yellow Flame Vent-Free Gas
Log Heater Shown (Logs May Vary by
Model)

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113101-01C

LOCAL CODES

PRODUCT FEATURES

Install and use heater with care. Follow all local
codes. In the absence of local codes, use the latest edition of The National Fuel Gas Code ANSI
Z223/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
Note: Where listed vented decorative logs are
required, thermostat models are not permitted.
State of Massachusetts: The installation must be made by a licensed plumber
or gas fitter in the Commonwealth of
Massachusetts.
Sellers of unvented propane or natural
gas-ﬁred supplemental room heaters shall
provide to each purchaser a copy of 527
CMR 30 upon sale of the unit.
Vent-free gas products are prohibited for
bedroom and bathroom installation in the
Commonwealth of Massachusetts.

UNPACKING
CAUTION: Do not remove the
data plates from the grate assembly. The data plates contain
important warranty and safety
information.
1. Remove logs and heater base assembly from
carton. Note: Do not pick up heater base assembly by burners. This could damage heater.
Always handle base assembly by grate.
2. Remove all protective packaging applied to
logs and heater for shipment.
3. Check all items for any shipping damage. If
damaged, promptly inform dealer where you
bought heater.

113101-01C

OPERATION
This heater is clean burning. It requires no outside
venting. There is no heat loss out a vent or up a
chimney. Heat is generated by realistic, dancing
yellow ﬂames. This heater is designed for vent-free
operation with ﬂue damper closed. It has been
tested and approved to ANSI Z21.11.2 standard
for unvented heaters. State and local codes in
some areas prohibit the use of vent-free heaters.
Non-thermostat models may also be operated as
a vented decorative (ANSI Z21.60) product by
opening ﬂue damper.

SAFETY PILOT
This heater has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. The
ODS/pilot is a required feature for vent-free room
heaters. The ODS/pilot shuts off the heater if there
is not enough fresh air.

PIEZO IGNITION SYSTEM
This heater has a piezo ignitor. This system requires no matches, batteries or other sources to
light heater.

AIR FOR COMBUSTION
AND VENTILATION
WARNING: This heater shall
not be installed in a conﬁned
space or unusually tight construction unless provisions are
provided for adequate combustion and ventilation air. Read the
following instructions to insure
proper fresh air for this and
other fuel-burning appliances
in your home.
Todayʼs homes are built more energy efﬁcient
than ever. New materials, increased insulation and
new construction methods help reduce heat loss
in homes. Home owners weather strip and caulk
around windows and doors to keep the cold air out
and the warm air in. During heating months, home
owners want their homes as airtight as possible.
While it is good to make your home energy efﬁcient, your home needs to breathe. Fresh air must
enter your home. All fuel-burning appliances need
fresh air for proper combustion and ventilation.

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AIR FOR COMBUSTION
AND VENTILATION
Continued
Exhaust fans, ﬁreplaces, clothes dryers and fuel
burning appliances draw air from the house to
operate. You must provide adequate fresh air for
these appliances. This will insure proper venting
of vented fuel-burning appliances.

PROVIDING ADEQUATE
VENTILATION
The following are excerpts from National Fuel
Gas Code. ANSI Z223.1/NFPA 54, Section 5.3,
Air for Combustion and Ventilation.
All spaces in homes fall into one of the three following ventilation classiﬁcations:
1. Unusually Tight Construction
2. Unconﬁned Space
3. Conﬁned Space
The information on pages 5 through 7 will help
you classify your space and provide adequate
ventilation.
Unusually Tight Construction
The air that leaks around doors and windows
may provide enough fresh air for combustion and
ventilation. However, in buildings of unusually
tight construction, you must provide additional
fresh air.
Unusually tight construction is deﬁned as
construction where:
a. walls and ceilings exposed to the outside atmosphere have a continuous
water vapor retarder with a rating of
one perm (6x10-11 kg per pa-sec-m2) or
less with openings gasketed or sealed
and
b. weather stripping has been added on
openable windows and doors and
c. caulking or sealants are applied to
areas such as joints around window
and door frames, between sole plates
and ﬂoors, between wall-ceiling joints,
between wall panels, at penetrations
for plumbing, electrical and gas lines
and at other openings.
If your home meets all of the three criteria
above, you must provide additional fresh air.
See Ventilation Air From Outdoors, page 7.
If your home does not meet all of the three
criteria above, proceed to Determining
Fresh-Air Flow For Heater Location.

Conﬁned Space and Unconﬁned Space
The National Fuel Gas Code ANSI Z223.1/NFPA
54 deﬁnes a conﬁned space as a space whose
volume is less than 50 cubic feet per 1,000 Btu
per hour (4.8 m3 per kw) of the aggregate input
rating of all appliances installed in that space and
an unconﬁned space as a space whose volume is
not less than 50 cubic feet per 1,000 Btu per hour
(4.8 m3 per kw) of the aggregate input rating of
all appliances installed in that space. Rooms communicating directly with the space in which the
appliances are installed*, through openings not
furnished with doors, are considered a part of the
unconﬁned space.
* Adjoining rooms are communicating only if
there are doorless passageways or ventilation grills
between them.

DETERMINING FRESH-AIR FLOW
FOR FIREPLACE LOCATION
Determining if You Have a Conﬁned or
Unconﬁned Space
Use this work sheet to determine if you have a
conﬁned or unconﬁned space.

Space: Includes the room in which you will install
ﬁreplace plus any adjoining rooms with doorless passageways or ventilation grills between the rooms.
1. Determine the volume of the space (length x
width x height).
Length x Width x Height =__________cu. ft.
(volume of space)
Example: Space size 20 ft. (length) x 16 ft.
(width) x 8 ft. (ceiling height) = 2,560 cu. ft.
(volume of space)
If additional ventilation to adjoining room is
supplied with grills or openings, add the volume
of these rooms to the total volume of the space.
2. Multiply the space volume by 20 to determine
the maximum Btu/Hr the space can support.
__________ (volume of space) x 20 = (Maximum Btu/Hr the space can support)
Example: 2,560 cu. ft. (volume of space) x 20 =
51,200 (maximum Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in
the space.
Vent-free ﬁreplace
__________ Btu/Hr
Gas water heater*
__________ Btu/Hr
Gas furnace
__________ Btu/Hr
Vented gas heater
__________ Btu/Hr
Gas ﬁreplace logs
__________ Btu/Hr
Other gas appliances* + __________ Btu/Hr
Total
= __________ Btu/Hr
* Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors
and vents to the outdoors.

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113101-01C

AIR FOR COMBUSTION
AND VENTILATION
Continued
Example:
40,000 Btu/Hr
Gas water heater
__________
31,500 Btu/Hr
Vent-free ﬁreplace
+ __________
71,500 Btu/Hr
Total
= __________
4. Compare the maximum Btu/Hr the space can
support with the actual amount of Btu/Hr used.
_________Btu/Hr (maximum the space can support)
_________ Btu/Hr (actual amount of Btu/Hr used)
Example: 51,200 Btu/Hr (maximum the space
can support)
71,500 Btu/Hr (actual amount of
Btu/Hr used)
The space in the example is a conﬁned space because
the actual Btu/Hr used is more than the maximum
Btu/Hr the space can support. You must provide additional fresh air. Your options are as follows:
A. Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconﬁned
space, remove door to adjoining room or add
ventilation grills between rooms. See Ventilation
Air From Inside Building, page 7.
B. Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 7.
C. Install a lower Btu/Hr ﬁreplace, if lower Btu/Hr
size makes room unconﬁned.
If the actual Btu/Hr used is less than the maximum
Btu/Hr the space can support, the space is an unconﬁned space. You will need no additional fresh
air ventilation.

WARNING: If the area in
which the heater may be operated is smaller than that deﬁned
as an unconﬁned space or if the
building is of unusually tight
construction, provide adequate
combustion and ventilation air
by one of the methods described
in the National Fuel Gas Code,
ANSI Z223.1/NFPA 54 Section 5.3
or applicable local codes.

nent openings: one within 12" of the ceiling and
one within 12" of the ﬂoor on the wall connecting
the two spaces (see options 1 and 2, Figure 2). You
can also remove door into adjoining room (see
option 3, Figure 2). 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.
12"

Ventilation
Grills
Into Adjoining
Room,
Option 1

Ventilation Grills
Into Adjoining Room,
Option 2

Or
Remove
Door into
Adjoining
Room,
Option
3

12"

Figure 2 - Ventilation Air from Inside
Building
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation grills or
ducts. You must provide two permanent 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 thermostatcontrolled power vent. Heated air entering the attic
will activate the power vent.

Outlet
Air
Outlet
Air

Ventilated
Attic

To Attic

To
Crawl
Space

VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining unconﬁned space. When ventilating to an adjoining
unconﬁned space, you must provide two perma-

113101-01C

Inlet
Air
Inlet Air

Ventilated
Crawl Space

Figure 3 - Ventilation Air from Outdoors

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INSTALLATION
NOTICE: This heater is intended
for use as supplemental heat.
Use this heater along with your
primary heating system. Do not
install this heater as your primary heat source. If you have a
central heating system, you may
run system’s circulating blower
while using heater. This will help
circulate the heat throughout the
house. In the event of a power
outage, you can use this heater
as your primary heat source.
WARNING: A qualiﬁed service person must install heater.
Follow all local codes.
NOTICE: State or local codes may
only allow operation of this appliance in a vented conﬁguration.
Check your state or 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
qualiﬁed chimney cleaner. Creosote will ignite if highly heated. A
dirty chimney ﬂue may create and
distribute soot within the house.
Inspect chimney ﬂue and ﬁrebox
for damage. If damaged, repair
ﬂue before operating heater.
WARNING: Seal any fresh
air vents or ash clean-out doors
located 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.

WARNING: Never install the
heater
• in a bedroom or bathroom unless
installed as a vented appliance
(Variable Manually-Controlled
Models Only) (see page 12)
• 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 heater
• in high trafﬁc areas
• in windy or drafty areas
CAUTION: This heater creates
warm air currents. These currents
move heat to wall surfaces next
to heater. Installing heater next
to vinyl or cloth wall coverings or
operating heater where impurities
(such as, but not limited to, tobacco smoke, aromatic candles,
cleaning ﬂuids, oil or kerosene
lamps, etc.) in the air exist, may
discolor walls or cause odors.
IMPORTANT: Vent-free heaters add moisture 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 Combustion and Ventilation, page 5.

CHECK GAS TYPE
Use only the correct gas type (natural or propane/LP) for your unit. If your gas supply is not
correct, do not install heater. Call dealer where
you bought heater for proper type heater.

WARNING: This appliance
is equipped for (natural or propane/LP) gas. Field conversion
is not permitted.
INSTALLATION AND CLEARANCES
(Vent-Free Operation Only)

WARNING: Maintain the
minimum clearances. If you can,
provide greater clearances from
ﬂoor, ceiling and adjoining wall.

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113101-01C

INSTALLATION
Continued
MINIMUM FIREPLACE CLEARANCE
TO COMBUSTIBLE MATERIALS
Log Size
18", 24"

Side Wall
16"

Ceiling
42"

LOG SIZING REQUIREMENTS
Minimum Firebox Size
Log
Front
Rear
Size Height Depth Width Width*
18"
17"
14"
24"
20"
24"
17"
14"
28"
21"
*Measured at 14" Depth
Carefully follow the instructions below. This will
ensure safe installation into a masonry, UL127listed manufactured ﬁreplace or certiﬁed vent-free
ﬁrebox.
Minimum Clearances For Side
Combustible Material, Side Wall and
Ceiling
A. Clearances from the side of the fireplace
cabinet to any combustible material and wall
should follow diagram in Figure 4.
Example: The face of a mantel, bookshelf,
etc. is made of combustible material and
protrudes 3 1/2" from the wall. This combustible material must be 4" from the side of the
ﬁreplace cabinet (see Figure 4).
Note: When installing your gas logs into
a manufactured firebox, follow firebox
manufacturerʼs instructions for minimum
clearances to combustible materials.
B. Clearances from the top of the ﬁreplace
opening to the ceiling should not be less
than 42 inches.

NOTICE: Manual control heaters
may be used as a vented product.
If so, you must always run heater
with chimney ﬂue damper open. If
running heater with damper open,
noncombustible material above ﬁreplace opening is not needed. Go to
Installing Damper Clamp Accessory
for Vented Operation, page 12.
Minimum Noncombustible Material
Clearances
If Not Using Mantel

Note: If using a mantel, proceed to If Using
Mantel, page 10. If not using a mantel, follow the
information below.
You must have noncombustible material(s) above
the ﬁreplace opening. Noncombustible materials
(such as slate, marble, tile, etc.) must be at least
1/2 inch thick. With sheet metal, you must have
noncombustible material behind it. Noncombustible
material must extend at least 8" up (for all models). If
noncombustible material is less than 12", you must
install the ﬁreplace hood accessory (24" model only).
See Figure 5 for minimum clearances.
Noncombustible
Material
Requirements for
Distance (A)
Safe Installation
12" or more
Between 8"
and 12"

Less than 8"

Example

Noncombustible material okay.
24" Model: Install ﬁreplace
hood accessory (GA6050,
GA6052 or GA6053,see
Accessories, page 31).
18" Model: Noncombustible
material okay.
Noncombustible material must
be extended to at least 8".
See Between 8" and 12",
above. If you cannot extend
material, you must operate
heater with ﬂue damper open.

Heat Resistant
Material
(A)

*
*Minimum 16 inches from Side Wall
Figure 4 - Minimum Clearance for
Combustible to Wall
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
113101-01C

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INSTALLATION

MANTEL CLEARANCES

Continued
IMPORTANT: If you cannot meet these minimum
clearances, you must operate heater with chimney
ﬂue damper open. Go to Installing Damper Clamp
Accessory for Vented Operation, page 12.
If Using Mantel

You must have noncombustible material(s) above
the ﬁreplace opening. Noncombustible materials
(such as slate, marble, tile, etc.) must be at least
1/2 inch thick. With sheet metal, you must have
noncombustible material behind it. Noncombustible
material must extend at least 8 inches up (for all
models). If noncombustible material is less than
12", you must install the ﬁreplace hood accessory
(24" model only). Even if noncombustible material
is more than 12", you may need the hood accessory
to deﬂect heat away from your mantel shelf. See
Figure 5 (see page 9), Figure 6 and Figure 7 (see
page 11) for minimum clearances.
IMPORTANT: If you cannot meet these minimum
clearances, you must operate heater with chimney
ﬂue damper open. Go to Installing Damper Clamp
Accessory for Vented Operation, page 12.

In addition to meeting noncombustible material
clearances, you must also meet required clearances
between ﬁreplace opening and mantel shelf. If
you do not meet the clearances listed below, you
will need a hood.
Determining Minimum Mantel Clearance
If you meet minimum clearance between mantel
shelf and top of ﬁreplace opening, a hood is not
required (see Figure 6).
Determining Minimum Mantel Clearance
when Using a Hood
If minimum clearances in Figure 6 are not met, you
must have a hood. When using a hood there are
still certain minimum mantel clearances required.
Follow minimum clearances shown in Figure 7,
page 11, when using a hood.

NOTICE: Surface temperatures
of adjacent walls and mantels become hot during operation. Walls
and mantels above the ﬁrebox
may become hot to the touch.
If installed properly, these temperatures meet the requirement
of the national product standard.
Follow all minimum clearances
shown in this manual.

Mantel Shelf

10"

Underside of
Mantel Shelf

8"
6"
2 1/2"

All minimum
distances are
in inches
Minimum NonCombustible
Material

(A)
12"

18"

20"

22"

24"

Log Set
24" Model

14"

17"

20"

18" Model
Top of Fireplace
Opening

Minimum NonCombustible
Material Height

Distances to
Underside of
Mantel

Figure 6 - Minimum Mantel Clearances Without Using Hood
10

www.desatech.com

113101-01C

INSTALLATION
Continued

NOTICE: If your installation does
not meet the minimum clearances shown, you must do one
of the following:
• operate the logs only with the
ﬂue damper open
• raise the mantel to an acceptable height
• remove the mantel

FLOOR CLEARANCES
A. If installing appliance on the ﬂoor level, you
must maintain the minimum distance of 14"
to combustibles (see Figure 8).
B. If combustible materials are less than 14" to
the ﬁreplace, you must install appliance at
least 5" above the combustible ﬂooring (see
Figure 9).

Mantel Shelf

12"

Underside of
Mantel Shelf

10"
8"
6"
2 1/2"

Minimum NonCombustible
Material

All minimum
distances are
in inches
Log Set

8"
Min.

Hood
(GA6050,GA6052
GA6052)
(GA6050,
or GA6053)

12"

15"

18"

20"

18" and 24"
Models

Top of Fireplace
Opening
Distances to
Underside of
Mantel

Figure 7 - Minimum Mantel Clearances When Using Hood

14"
Min.

Combustible
Material

Hearth

Combustible
Material

5"
Min.

Noncombustible Material

Figure 8 - Minimum Fireplace Clearances
If Installed at Floor Level

113101-01C

Figure 9 - Minimum Fireplace Clearances
Above Combustible Flooring

www.desatech.com

INSTALLATION
Continued
INSTALLING DAMPER CLAMP
ACCESSORY FOR VENTED
OPERATION
Note: When used as a vented heater, appliance
must be installed only in a solid-fuel burning
ﬁreplace with a working ﬂue and constructed of
noncombustible material.
If your heater is a manually-controlled model, you
may use this heater as a vented product. There
are three reasons for operating your heater in the
vented mode.
1. The ﬁreplace does not meet the clearance
to combustibles requirements for vent-free
operation.
2. State or local codes do not permit vent-free
operation.
3. You prefer vented operation.
If reasons number 1 or 2 above apply to you, you
must permanently open chimney ﬂue damper. You
must install the damper clamp accessory (to order,
see Accessories, page 31). This will insure vented
operation (see Figure 10). The damper clamp will
keep damper open. Installation instructions are
included with clamp accessory.
See chart below for minimum permanent ﬂue
opening you must provide. Attach damper clamp
so the minimum permanent ﬂue opening will be
maintained at all times.

Chimney
Height (ft.)
6' to 15'
15' to 30'

Minimum Permanent
Flue Opening (sq. ins.)
39 sq. inches
29 sq. inches

Area of Various Standard Round Flues
Diameter (ins.)
Area (sq. ins.)
5"
20 sq. inches
6"
29 sq. inches
7"
39 sq. inches
8"
51 sq. inches

Damper
Damper
Clamp
Damper

Damper

Masonry Fireplace

Manufactured
Fireplace
Figure 10 - Attaching Damper Clamp

INSTALLING HEATER BASE
ASSEMBLY

CAUTION: Do not remove the
data plates attached to the heater
base assembly. The data plates
contain important warranty and
safety information.
WARNING: You must secure
this heater to ﬁreplace ﬂoor. If
not, heater will move when you
adjust controls. Moving heater
may cause a gas leak.
WARNING: If installing in a
sunken ﬁreplace, special care
is needed. You must raise the
ﬁreplace ﬂoor to allow access to
heater control panel. This will insure adequate air ﬂow and guard
against sooting and controls being damaged. Raise ﬁreplace ﬂoor
with noncombustible material.
Make sure material is secure.
CAUTION: Do not pick up
heater base assembly by the
burner. This could damage
heater. Only handle base assembly by grates.

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113101-01C

INSTALLATION

Masonry
Screw

Continued
IMPORTANT: Make sure the heater burners are
level. If heater is not level, heater will not work
properly. For thermostat models, avoid damage
to thermostat bulb. Avoid nicks or sharp bends
in thermostat bulb wire. Keep thermostat bulb
in mounting bracket until ready to mount base
to ﬂoor. See Optional Positioning Of Thermostat
Sensing Bulb, page 29.
Installation Items Needed
• hardware package (provided with heater)
• approved ﬂexible gas hose (not provided) (if
allowed by local codes)
• sealant (resistant to propane/LP gas, not provided)
• electric drill with 3/16" drill bit
• ﬂathead screwdriver
1. Apply pipe joint sealant lightly to male threads
of the ﬁtting to be threaded into gas regulator.
Connect approved ﬂexible gas hose to gas
regulator of heater (see Figure 11).
IMPORTANT: Hold gas regulator with
wrench when connecting ﬂexible gas hose.
2. Locate masonry screws in hardware package.
3. Position heater base assembly in ﬁreplace.
4. Place logs in their proper position on heater
base (see Installing Logs, page 16).
5. Center heater base and logs front-to-front and
side-to-side in ﬁreplace.
6. Carefully remove logs without moving
heater base.
7. Mark screw locations through holes in mounting brackets (see Figure 12). If installing in a
brick-bottom ﬁreplace, mark screw locations
in mortar joint of bricks.
8. Remove heater base from ﬁreplace.
9. Drill holes at marked locations using 3/16"
drill bit.
10. Attach base assembly to ﬁreplace ﬂoor using
two masonry screws (in hardware package)
(see Figure 12).
Fitting

Heater Gas
Regulator

Mounting
Bracket
Figure 12 - Attaching Base Assembly to
Fireplace Floor

CONNECTING TO GAS SUPPLY

WARNING: This appliance
requires a 1/2" NPT (National
Pipe Thread) inlet connection to
the pressure regulator.
WARNING: A qualified
service person must connect
heater to gas supply. Follow
all local codes.
CAUTION: Never connect
propane/LP heater directly to the
propane/LP supply. Propane/LP
heaters require an external regulator (not supplied). Install the
external regulator between the
heater and propane/LP supply.
WARNING: For natural gas
units, never connect heater to
private (non-utility) gas wells.
This gas is commonly known
as wellhead gas.

Flexible Gas Hose
(if allowed by local codes)
Figure 11 - Attaching Flexible Gas Hose
to Heater Gas Regulator
113101-01C

www.desatech.com

INSTALLATION
Continued
Installation Items Needed
Before installing heater, make sure you have the
items listed below.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
* A CSA design-certiﬁed equipment shutoff valve
with 1/8" NPT tap is an acceptable alternative to
test gauge connection. Purchase the optional CSA
design-certiﬁed equipment shutoff valve from your
dealer. See Accessories, page 31.
For propane/LP gas, the installer must supply an
external regulator. The external regulator will
reduce incoming gas pressure. You must reduce
incoming gas pressure to between 11 and 14 inches
of water. If you do not reduce incoming gas pressure, heater regulator damage could occur. Install
external regulator with the vent pointing down
as shown in Figure 13. Pointing the vent down
protects it from freezing rain or sleet.

CAUTION: Use only new, black
iron or steel pipe. Internally-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 heater. If pipe is too small, undue
loss of volume will occur.
Propane/LP
Supply Tank
External
Regulator

Vent
Pointing
Down

Figure 13 - External Regulator With Vent
Pointing Down
14

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 heater (see Figure 14).
IMPORTANT: Install equipment shutoff valve in an
accessible location. The main gas valve is for turning on or shutting off the gas to the appliance.
Check your building codes for any special requirements for locating equipment shutoff valve
to ﬁreplaces.
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 clogged heater valves.

WARNING: Use pipe joint
sealant that is resistant to liquid
petroleum (LP) gas.
We recommend that you install sediment trap in
supply line as shown in Figure 14. Locate sediment
trap where it is within reach for cleaning. Install
in piping system between fuel supply and heater.
Locate sediment trap where trapped matter is not
likely to freeze. A sediment trap traps moisture and
contaminants. This keeps them from going into
heater controls. If sediment trap is not installed or is
installed wrong, heater may not run properly.

CAUTION: Avoid damage to
regulator. Hold gas regulator with
wrench when connecting it to gas
piping and/or ﬁttings.
Natural
From Gas Meter
(5" W.C.** to
10.5" W.C.
Pressure)

CSA Design-Certiﬁed
Equipment Shutoff Valve
With 1/8" NPT Tap*

Propane/LP
From External
Regulator
3" Min.
(11" W.C.**
to 14" W.C.
Tee Cap Pipe
Pressure
Joint
Nipple

Gas
Regulator

Approved
Flexible
Gas Hose (if
allowed by
local codes)

Sediment Trap
Figure 14 - Gas Connection
* Purchase the optional CSA design-certiﬁed
equipment shutoff valve from your dealer. See
Accessories, page 31.
** Min. inlet pressure for purpose of input adjustment.

www.desatech.com

113101-01C

INSTALLATION
Continued
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 commercial leak detection solution to all joints.
Bubbles forming show a leak.
Correct all leaks at once.
CAUTION: For propane/LP
units, make sure external regulator has been installed between
propane/LP supply and heater.
See guidelines under Connecting
to Gas Supply, page 13.

Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 15).
2. Pressurize supply piping system by either
opening propane/LP supply tank valve for
propane/LP gas or opening main gas valve
located on or near gas meter for natural gas
or using compressed air.
3. Check all joints from gas meter (natural gas) or
propane/LP supply to equipment shutoff valve
(see Figure 16 or 17). Apply a commercial
leak detection solution to all joints. Bubbles
forming show a leak.
4. Correct all leaks at once.

Equipment
Shutoff Valve

Open

Closed
Figure 15 - Equipment Shutoff Valve
Propane/LP
Supply Tank

Equipment Shutoff Valve

PRESSURE TESTING GAS SUPPLY
PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
1. Disconnect appliance with its appliance main
gas valve (control valve) and equipment shutoff
valve from gas supply piping. Pressures in excess of 1/2 psig will damage heater regulator.
2. Cap off open end of gas pipe where equipment
shutoff valve was connected.
3. Pressurize supply piping system by either
opening propane/LP supply tank valve for
propane/LP gas or opening main gas valve
located on or near gas meter for natural gas
or using compressed air.
4. Check all joints of gas supply piping system.
Apply a commercial leak detection solution
to all joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect heater and equipment shutoff valve
to gas supply. Check reconnected ﬁttings for
leaks.

113101-01C

Control Valve
Location

Figure 16 - Checking Gas Joints
(Propane/LP Gas Only)
Equipment Shutoff Valve
Gas
Meter

Control Valve Location
Figure 17 - Checking Gas Joints
(Natural Gas Only)

www.desatech.com

INSTALLATION
Continued
Pressure Testing Heater Gas
Connections
1. Open equipment shutoff valve (see Figure 15,
page 15).
2. Open main gas valve located on or near gas
meter for natural gas or open propane/LP
supply tank valve.
3. Make sure control knob of heater is in the
OFF position.
4. Check all joints from gas meter (natural gas)
or propane/LP supply to equipment shutoff
valve (see Figure 16 or 17, page 15). Apply
a commercial leak detection solution to all
joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Light heater (see Operating Heater, page 18
[manually-controlled models] or page 21
[thermostatically-controlled models]). Check
all other internal joints for leaks.
7. Turn off heater (see To Turn Off Gas to Appliance, page 20 [manually-controlled models] or
page 22 [thermostatically-controlled models]).

INSTALLING LOGS, MODELS
CGS2718PA, CGS2718NA,
CGS3124PA, CGS3124NA,
SGS3124PA AND SGS3124NA

Each log is marked with a number. These numbers
will help you identify the log when installing. It
is very important to install these logs exactly as
instructed. Do not modify logs. Only use logs
supplied with heater.
1. Locate pegs on the bottom of back log (#1).
Slide these pegs into the holes in the grate base
behind the burner (see Figure 18).
2. Locate the notches on the back of the front log
(#2). Slide these notches over the tabs of the
grate base (see Figure 19).
3. Locate the holes in the bottom of the left
crossover log (#3). Place crossover log on
pegs on left of the back log and front log (see
Figure 20, page 17).
4. Locate the holes in the bottom of the right
crossover log (#4). Place crossover log on
pegs on right of the back log and front log
(see Figure 20, page 17).
5. Add lava rock around base of heater if desired.
Do not place lava rock on logs or burner.
Back Log (#1)

Hole

Figure 18 - Installing Back Log
Front
Log (#2)

Notch

Tabs of
Grate Base
Figure 19 - Installing Front Log

www.desatech.com

113101-01C

INSTALLATION

1. Place the base of the middle log (#1) in the
U-shaped slots of the grate base. The cutout
on the right of the middle log should ﬁt over
the burner (see Figure 21). Make sure the front
of the middle log is resting on the tabs of the
grate base and the cutout area is centered over
the burner “U” bend.
2. Locate pegs on the bottom of back log (#2).
Slide these pegs into the holes in the grate base
behind the burner (see Figure 22).
3. Slide log (#3) over left end of log (#4). Place
these logs on the grate ﬁngers. Make sure the
notches of the front log line up with the grate
ﬁngers (see Figure 23, page 18).

Continued
Crossover
Log (#3)

Crossover
Log (#4)

Pegs

Middle Log (#1)

Pegs

Figure 20 - Installing Crossover Logs

Tab
Burner

INSTALLING LOGS, MODELS
CLD3018PTA, CLD3018NTA,
CLD3924PTB AND CLD3924NTB

WARNING: Failure to position
the parts in accordance with these
diagrams or failure to use only
parts speciﬁcally approved with
this heater may result in property
damage or personal injury.
CAUTION: After installation and periodically thereafter,
check to ensure that no ﬂame
comes in contact with any log.
With the heater set to High, check
to see if ﬂames contact any log. If
so, reposition logs according to
the log installation instructions
in this manual. Flames contacting logs will create soot.
Each log is marked with a number. These numbers
will help you identify the log when installing. It
is very important to install these logs exactly as
instructed. Do not modify logs. Only use logs
supplied with heater.

113101-01C

“U” Bend

U-Shaped Slot
Figure 21 - Installing Middle Log (#1)

Hole in Grate
Base

Back Log
(#2)

Peg

Burner

Figure 22 - Installing Back Log (#2)

www.desatech.com

INSTALLATION

Crossover
Log (#7)

Continued
4. Place crossover log (#5) onto the pin (left) on
middle log (#1) and onto the pin on front left
log (#3) (see Figure 24).
5. Place crossover log #6 onto the pin (right)
on middle log (#1) and onto the pin on back
log (#2) (see Figure 24).
6. Place crossover log (#7) onto pin on crossover
log #6 and pin on right front log (#4) (see
Figure 25).
5. Add lava rock around base of heater if desired. Do not place any lava rock on logs or
burner.

Log #4

Figure 25 - Installing Crossover Log (#7)

OPERATING HEATER
MANUALLY-CONTROLLED
MODELS
FOR YOUR SAFETY
READ BEFORE LIGHTING

Log #3

WARNING: If you do not follow these instructions exactly,
a ﬁre or explosion may result
causing property damage, personal injury or loss of life.
Grate Fingers

Figure 23 - Installing Front Logs
(#3 and #4)
Crossover
Log (#5)

Crossover
Log (#6)

Figure 24 - Installing Crossover Logs
(#5 and #6)

A. This appliance has a pilot which must be
lighted by hand. When lighting the pilot,
follow these instructions exactly.
B. 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.
C. Use only your hand to push in or turn the
gas control knob. Never use tools. If the
knob will not push in or turn by hand, donʼt
try to repair it, call a qualiﬁed service technician or gas supplier. Force or attempted
repair may result in a ﬁre or explosion.
D. Do not use this appliance if any part has been
under water. Immediately call a qualiﬁed
service technician to inspect the appliance and
to replace any part of the control system and
any gas control which has been under water.

www.desatech.com

113101-01C

OPERATING HEATER
Continued
LIGHTING
INSTRUCTIONS

WARNING:
• If ﬁreplace has glass doors,
never operate this heater with
glass doors closed. If you operate heater with doors closed,
heat buildup inside ﬁreplace
will cause glass to burst. Make
sure there are no obstructions
across openings of ﬁreplace.
• You must operate this heater
with a fireplace screen in
place. Make sure fireplace
screen is closed before running heater.
NOTICE: During initial operation
of new heater, burning logs will
give off a paper-burning smell.
Orange ﬂame will also be present. Open damper or window to
vent smell. This will only last a
few hours.
Note: Home owners generally prefer to operate their heater with the chimney damper
closed. This will put all the heat into the room.
However, there may be times you will desire
the full ﬂames of the HI heat setting but will
ﬁnd the heat output excessive. You can open
the chimney damper (if you have one) fully or
partially to release some of the heat.

WARNING: Damper handle
will be hot if heater has been
running.
1. STOP! Read the safety information page 18,
column 2.
2. Make sure equipment shutoff valve is
fully open.
3. Press in and turn control knob clockwise
to the OFF position.

113101-01C

4. Wait ﬁve (5) minutes to clear out any gas.
Then smell for gas, including near the ﬂoor.
If you smell gas, STOP! Follow “B” in the
safety information page 18, column 2. If
you donʼt smell gas, go to the next step.
5. Slightly depress and turn control knob
to the PILOT
counterclockwise
position. Press in control knob for ﬁve (5)
seconds (see Figure 26).
Note: You may be running this heater for
the ﬁrst time after hooking up to gas supply. If so, the control knob may need to be
pressed in for 30 seconds or more. This will
allow air to bleed from the gas system.
6. With control knob pressed in, press and
release ignitor button. This will light pilot. The pilot is attached to the 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. To light pilot with match, see
Manual Lighting Procedure, page 20.
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.
• If control knob does not pop out when
released, contact a qualified service
person or gas supplier for repairs.
8. Slightly depress and turn control knob counto desired heating level.
terclockwise
The burner should light. Set control knob
to any heat level between HI and LO.

WARNING: Do not operate
heater between PILOT and HIGH
positions.

PILOT

OFF
LO

Ignitor Button

Control Knob

Figure 26 - Control Knob and Ignitor
Button Location

www.desatech.com

OPERATING HEATER

MANUAL LIGHTING
PROCEDURE

Continued
Ignitor
Electrode

Pilot Burner

Thermocouple
Propane/LP

Ignitor Electrode

Pilot Burner

1. Follow steps 1 through 5 under Lighting
Instructions, page 19.
2. Depress control knob and light pilot
with match.
3. Keep control knob pressed in for 30 seconds
after lighting pilot. After 30 seconds, release
control knob. Now follow step 8 under
Lighting Instructions, page 19.

THERMOSTATICALLYCONTROLLED MODELS
FOR YOUR SAFETY
READ BEFORE LIGHTING

Thermocouple
Natural Gas
Figure 27 - Pilot

VARIABLE CONTROL
OPERATION
The variable control valve can be set to any
heat setting and ﬂame height desired, by simply
turning the control knob until that setting is
attained. Even the lowest setting provides realistic, dancing yellow ﬂames. Selecting higher
settings produces greater heat output. This
results in increased heating comfort.

CAUTION: Do not try to adjust heating levels by using the
equipment shutoff valve.
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Heater
1. Press in and turn control knob clockwise
to the HI position.
to the
2. Turn control knob clockwise
pilot position.
3. Press in control knob and turn clockwise
to the OFF position.
Shutting Off Burners Only (pilot stays lit)
to the
1. Turn control knob clockwise
HI position.
2. Press in and turn control knob clockwise
to the pilot position.

WARNING: If you do not follow these instructions exactly,
a ﬁre or explosion may result
causing property damage, personal injury or loss of life.
A. This appliance has a pilot which must be
lighted by hand. When lighting the pilot,
follow these instructions exactly.
B. 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.
C. Use only your hand to push in or turn the
gas control knob. Never use tools. If the
knob will not push in or turn by hand, donʼt
try to repair it, call a qualiﬁed service technician or gas supplier. Force or attempted
repair may result in a ﬁre or explosion.
D. Do not use this appliance if any part has
been under water. Immediately call a
qualiﬁed service technician to inspect the
appliance and to replace any part of the
control system and any gas control which
has been under water.

www.desatech.com

113101-01C

OPERATING HEATER
Continued
LIGHTING
INSTRUCTIONS

WARNING
• If ﬁreplace has glass doors,
never operate this heater with
glass doors closed. If you operate heater with doors closed,
heat buildup inside ﬁreplace
will cause glass to burst. Make
sure there are no obstructions
across openings of ﬁreplace.
• You must operate this heater
with a ﬁreplace screen in place.
Make sure ﬁreplace screen is
closed before running heater.
NOTICE: During initial operation of
new heater, burning logs will give
off a paper-burning smell. Orange
ﬂame will also be present. Open
damper or window to vent smell.
This will only last a few hours.

Note: You may be running this heater for
the ﬁrst time after hooking up to gas supply. If so, the control knob may need to be
pressed in for 30 seconds or more. This will
allow air to bleed from the gas system.
• If control knob does not pop out when
released, contact a qualified service
person or gas supplier for repairs.
6. With control knob pressed in, press and release
ignitor button. This will light pilot. The pilot is
attached to 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. To light pilot with match, see
Manual Lighting Procedure, page 22.
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. This heater has a safety interlock
system. Wait one (1) minute for system to
reset before lighting pilot again.
8. Turn control knob counterclockwise
to desired heating level. The burners should
light. Set control knob to any heat level
between HI and LO.

Note: Home owners generally prefer to operate their heater with the chimney damper
closed. This will put all the heat into the room.
However, there may be times you will desire
the full ﬂames of the HI heat setting but will
ﬁnd the heat output excessive. You can open
the chimney damper (if you have one) fully or
partially to release some of the heat.

CAUTION: Do not try to adjust heating levels by using the
equipment shutoff valve.

WARNING: Damper handle will
be hot if heater has been running.

Control Knob
Ignitor Button
Figure 28 - Control Knob and Ignitor
Button Location
Ignitor
Propane/LP
Electrode
Pilot Burner

113101-01C

1. STOP! Read the safety information,
page 20, column 2.
2. Make sure equipment shutoff valve is fully open.
3. Turn control knob clockwise
to the
OFF position.
4. Wait ﬁve (5) minutes to clear out any gas.
Then smell for gas, including near the ﬂoor.
If you smell gas, STOP! Follow “B” in the
safety information, page 20, column 2. If
you donʼt smell gas, go to the next step.
5. Turn control knob counterclockwise
to the PILOT position. Press in control
knob for ﬁve (5) seconds (see Figure 28).

HI
OFF
Pilo
t

Thermocouple

www.desatech.com

Ignitor
Electrode
Natural Gas
Figure 29 - Pilot
21

OPERATING HEATER
Continued
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Heater
Turn control knob clockwise
position.

to the OFF

Shutting Off Burners Only (pilot stays lit)
to the
Turn control knob clockwise
PILOT position.

If pilot ﬂame pattern is incorrect, as shown in
Figure 31
• turn heater off (see To Turn Off Gas to Appliance, page 20 [manually-controlled models] or
page 22 [thermostatically-controlled model])
• see Troubleshooting, page 25
Note: The pilot ﬂame on natural gas units will
have a slight curve, but ﬂame should be blue and
have no yellow or orange color.
Pilot Burner

Pilot Burner

THERMOSTAT CONTROL
OPERATION
The thermostat control knob can be set to any
comfort level between HI and LO. The thermostat will gradually modulate the heat output
and ﬂame height from higher to lower settings
or pilot, in order to maintain the comfort level
you select. The ideal comfort setting will vary
by household depending upon the amount of
space to be heated, the output of the central
heating system, etc.
Note: Selecting the HI setting with the control
knob will cause the burner to remain fully on,
without modulating down in most cases.

MANUAL LIGHTING
PROCEDURE

Natural Gas

Figure 30 - Correct Pilot Flame Pattern

Pilot Burner

Thermocouple

1. Follow steps 1 through 5 under Lighting
Instructions on page 21.
2. Depress control knob and light pilot
with match.
3. Keep control knob pressed in for 30 seconds
after lighting pilot. After 30 seconds, release
control knob. Now follow step 8 under
Lighting Instructions, page 21.

INSPECTING BURNERS
Check pilot ﬂame pattern and burner ﬂame patterns often.

PILOT FLAME PATTERN
Figure 30 shows a correct pilot ﬂame pattern.
Figure 31 shows an incorrect pilot ﬂame pattern. The incorrect pilot ﬂame is not touching the
thermocouple. This will cause the thermocouple to
cool. When the thermocouple cools, the heater will
shut down.

Thermocouple
Propane/LP

Propane/LP

Natural Gas

Figure 31 - Incorrect Pilot Flame Pattern

BURNER PRIMARY AIR HOLES
Air is drawn into the burner through the holes in
the ﬁtting at the entrance to the burner. These holes
may become blocked with dust or lint. Periodically
inspect these holes for any blockage and clean as
necessary. Blocked air holes will create soot.

MAIN BURNER
Periodically inspect all burner ﬂame holes with the
heater running. All slotted burner ﬂame holes should
be open with yellow ﬂame present. All round burner
ﬂame holes should be open with a small blue ﬂame
present. Some burner ﬂame holes may become
blocked by debris or rust, with no ﬂame present. If
so, turn off heater and let cool. Remove blockage,
blocked burner ﬂame holes will create soot.

www.desatech.com

113101-01C

CLEANING AND
MAINTENANCE
WARNING: Turn off heater
and let cool before cleaning.
CAUTION: You must keep
control areas, burner and circulating air passageways of heater
clean. Inspect these areas of
heater before each use. Have
heater inspected yearly by a qualiﬁed service person. Heater may
need more frequent cleaning due
to excessive lint from carpeting,
bedding material, pet hair, etc.
WARNING: Failure to keep
the primary air opening(s) of
the burner(s) clean may result in
sooting and property damage.

Burner Tube

ODS/PILOT AND BURNER
• Use a vacuum cleaner or small, soft bristled
brush to clean.

BURNER INJECTOR HOLDER AND
PILOT AIR INLET HOLE
The primary air inlet holes allow the proper amount
of air to mix with the gas. This provides a clean
burning ﬂame. Keep these holes clear of dust, dirt
and lint. Clean these air inlet holes prior to each
heating season. Blocked air holes will create soot.
We recommend that you clean the unit every three
months during operation and have heater inspected
yearly by a qualiﬁed service person.
We also recommend that you keep the burner
tube and pilot assembly clean and free of dust and
dirt. To clean these parts we recommend using
compressed air no greater than 30 PSI. Your local
computer store, hardware store or home center
may carry compressed air in a can. You can use a
vacuum cleaner in the blow position. If using compressed air in a can, please follow the directions on
the can. If you donʼt follow directions on the can,
you could damage the pilot assembly.
1. Shut off the unit, including the pilot. Allow the
unit to cool for at least thirty minutes.
2. Inspect burner, pilot and primary air inlet
holes on injector holder for dust and dirt (see
Figure 32).
113101-01C

3. Blow air through the ports/slots and holes in
the burner.
4. Check the injector holder located at the end
of the burner tube again. Remove any large
particles of dust, dirt, lint or pet hair with a
soft cloth or vacuum cleaner nozzle.
5. Blow air into the primary air holes on the
injector holder.
6. In case any large clumps of dust have now been
pushed into the burner repeat steps 3 and 4.
Clean the pilot assembly also. A yellow tip on the
pilot ﬂame indicates dust and dirt in the pilot assembly. There is a small pilot air inlet hole about
two inches from where the pilot ﬂame comes out
of the pilot assembly (see Figure 33). With the unit
off, lightly blow air through the air inlet hole. You
may blow through a drinking straw if compressed
air is not available.
Injector Holder (May
Be Brass or Aluminum
Depending on Model)

Primary Air Inlet Holes
(Shape of Holes May
Vary by Model)
Figure 32 - Injector Holder On Outlet
Burner Tube

Ports/Slots

Pilot
Assembly

Burner
Tube

Pilot Air
Inlet Hole

Figure 33 - Pilot Inlet Air Hole

www.desatech.com

CLEANING AND
MAINTENANCE
Continued
LOGS
• If you remove logs for cleaning, refer to Installing Logs, page 16, to properly replace logs.
• Replace log(s) if broken or chipped (dime-sized
or larger).

BURNER PRIMARY AIR HOLES
Air is drawn into the burner through the 8 holes
in the brass ﬁtting at the entrance to the burner.
These holes may become blocked with dust or lint.
Periodically inspect these holes for any blockage
and clean as necessary. Blocked air holes will
create soot.

MAIN BURNER
Periodically inspect all burner ﬂame holes with
the heater running. All slotted burner ﬂame holes
should be open with yellow ﬂame present. All
round burner ﬂame holes should be open with a
small blue ﬂame present. Some burner ﬂame holes
may become blocked by debris or rust, with no
ﬂame present. If so, turn off heater and let cool.
Remove blockage, blocked burner ﬂame holes
will create soot.

TECHNICAL SERVICE
You may have further questions about installation,
operation or troubleshooting. If so, contact DESA
Heating Productsʼ Technical Service Department
at 1-866-672-6040. When calling please have your
model and serial numbers of your heater ready.
You can also visit DESA Heating Productsʼ technical service 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 DESA Heating Productsʼ Technical Service
Department at 1-866-672-6040.
When calling DESA Heating Products, have
ready
• your name
• your address
• model and serial numbers of your heater
• how heater was malfunctioning
• type of gas used (propane/LP or 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 Heating Products at 1-866-672-6040 for
referral information.
When calling DESA Heating Products, have
ready
• model number of your heater
• the replacement part number

SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
• burners will have delayed ignition
• heater will not produce speciﬁed heat
• propane/LP gas supply may be low
You may feel your gas pressure is too low. If so, contact your local natural or propane/LP gas supplier.

www.desatech.com

113101-01C

TROUBLESHOOTING
WARNING: Turn off and unplug heater and let cool before servicing.
Only a qualiﬁed service person should service and repair heater.
CAUTION: Never use a wire, needle or similar object to clean
ODS/pilot. This can damage ODS/pilot unit.
Note: All troubleshooting items are listed in order of operation.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

When ignitor button is pressed, 1. Ignitor electrode not con- 1. Reconnect ignitor cable
there is no spark at ODS/pilot
nected to ignitor cable
2. Ignitor cable pinched or wet 2. Free ignitor cable if pinched
by any metal or tubing. Keep
ignitor cable dry
3. Tighten nut holding piezo ig3. Piezo ignitor nut is loose
nitor to base panel of log set. Nut
is located behind base panel
4. Replace ignitor cable
4. Broken ignitor cable
5. Replace piezo ignitor
5. Bad piezo ignitor
6. Replace pilot assembly
6. Ignitor electrode broken
7. Ignitor electrode positioned 7. Replace pilot assembly
wrong
When ignitor button is pressed, 1. Gas supply turned off or equipment shutoff valve closed
there is spark at ODS/pilot but
no ignition
2. Control knob not in PILOT
position
3. Control knob not pressed in
while in PILOT position
4. Air in gas lines when installed

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 operation until air is removed
5. Depleted gas supply (propane/ 5. Contact local propane/LP gas
LP only)
company
6. ODS/pilot is clogged
6. Clean ODS/pilot (see Cleaning
and Maintenance, page 23) or
replace ODS/pilot assembly
7. Gas regulator setting is not 7. Replace gas regulator
correct

113101-01C

www.desatech.com

TROUBLESHOOTING
Continued
OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

ODS/pilot lights but ﬂame goes 1. Control knob not fully pressed 1. Press in control knob fully
in
out when control knob is re2. Control knob not pressed in 2. After ODS/pilot lights, keep conleased
long enough
trol knob pressed in 30 seconds
3. Safety interlock system has 3. Wait one minute for safety inbeen triggered
terlock system to reset. Repeat
ignition operation
4. Equipment shutoff valve not 4. Fully open equipment shutoff
fully open
valve
5. Pilot ﬂame not touching ther- 5. A) Contact local natural or
propane/LP gas company
mocouple, which allows thermocouple to cool, causing
B) Clean ODS/pilot (see
pilot flame to go out. This
Cleaning and Maintenance,
problem could be caused by
page 23) or replace ODS/pilot
one or both of the following:
A) Low gas pressure
assembly
B) Dirty or partially clogged
ODS/pilot
6. Thermocouple connection 6. Hand tighten until snug, then
loose at control valve
tighten 1/4 turn more
7. Thermocouple damaged
7. Replace pilot assembly
8. Control valve damaged
8. Replace control valve
Burner does light after ODS/pi- 1. Burner oriﬁce clogged
lot is lit
2. Inlet gas pressure is too low
Delayed ignition of burner

1. Manifold pressure is too low
2. Burner oriﬁce clogged

1. Clean burner (see Cleaning
and Maintenance, page 23) or
replace burner oriﬁce
2. Contact local natural or propane/LP gas company
1. Contact local natural or propane/LP gas company
2. Clean burner (see Cleaning
and Maintenance, page 23) or
replace burner oriﬁce

Burner backﬁring during com- 1. Burner oriﬁce is clogged or 1. Clean burner (see Cleaning
and Maintenance, page 23) or
bustion
damaged
replace burner oriﬁce
2. Damaged burner
2. Replace damaged burner
3. Gas regulator defective
3. Replace gas regulator

www.desatech.com

113101-01C

TROUBLESHOOTING
Continued
OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Slight smoke or odor during initial 1. Not enough air
operation

1. Check burner for dirt and
debris. If found, clean burner
(see Cleaning and Maintenance, page 23)
2. Gas regulator defective
2. Replace gas regulator
3. Residues from manufacturing 3. Problem will stop after a few
processes and logs curing
hours of operation

Moisture/condensation noticed 1. Not enough combustion/ven- 1. Refer to Air for Combustion
and Ventilation requirements
on windows
tilation air
(page 5)
Heater produces a whistling noise 1. Turning control knob to HI 1. Turn control knob to LO position and let warm up for a
when burner is lit
position when burner is cold
minute
2. Air in gas line
2. Operate burner until air is
removed from line. Have gas
line checked by local natural
or propane/LP gas company
3. Air passageways on heater 3. Observe minimum installation
blocked
clearances (see page 8)
4. Dirty or partially clogged 4. Clean burner (see Cleaning
burner oriﬁce
and Maintenance, page 23) or
replace burner oriﬁce
White powder residue forming 1. When heated, vapors from 1. Turn heater off when using
furniture polish, wax, carpet
within burner box or on adjacent
furniture polish, wax, carpet
walls or furniture
cleaners or similar products
cleaners, etc. may turn into a
white powder residue
Heater produces a clicking/tick- 1. Metal expanding while heating 1. This is common with most heator contracting while cooling
ing noise just after burner is lit
ers. If noise is excessive, contact
or shut off
qualiﬁed service person

113101-01C

www.desatech.com

TROUBLESHOOTING
Continued

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. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the ﬁre department.
Operating heater 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.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Heater produces unwanted 1. Heater burning vapors from 1. Open window and ventilate
paint, hair spray, glues, cleanroom. Stop using odor causodors
ers, chemicals, new carpet,
ing products while heater is
etc. (See IMPORTANT staterunning
ment above)
2. Low fuel supply (propane/LP 2. Reﬁll supply tank (propane/LP
only)
only)
3. Gas leak. See Warning 3. Locate and correct all leaks
(see Checking Gas Connecstatement above
tions, page 15)
Heater shuts off in use (ODS 1. Not enough fresh air is avail- 1. Open window and/or door for
operates)
able
ventilation
2. Low line pressure
2. Contact local natural or propane/LP gas company
3. O D S / p i l o t i s p a r t i a l l y 3. Clean ODS/pilot (see Cleaning
clogged
and Maintenance, page 23)
Gas odor even when control knob 1. Gas leak. See Warning 1. Locate and correct all leaks
(see Checking Gas Connecis in OFF position
statement above
tions, page 15)
2. Control valve defective
2. Replace control valve
Gas odor during combustion

1. Foreign matter between con- 1. Take apart gas tubing and
trol valve and burner
remove foreign matter
2. Gas leak. See Warning 2. Locate and correct all leaks (see
statement above
Checking Gas Connections,
page 15)

Log set cycles to pilot, but room 1. Thermostat sensing bulb needs 1. Reposition thermostat sensing
bulb (see Optional Positioning
to be repositioned
temperature drops to a lower than
of Thermostat Sensing Bulb,
ideal level before log set comes
page 29
back on

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113101-01C

OPTIONAL POSITIONING
OF THERMOSTAT
SENSING BULB
FOR MASONRY AND FACTORYBUILT METAL FIREPLACE

Figure 35 - Adhesive-backed Mounting Clip
Thermostat
Screw

If your log set cycles to pilot, but the room temperature drops to a lower than ideal comfort level
before the log set comes back on, you may want
Thermostat
to reposition the thermostat sensing bulb.
Sensing
Capillary
Bulb
The thermostat sensing bulb is located near the
gas valve assembly on the mounting bracket.
This location allows the thermostat to keep the
room temperature at an ideal comfort level for
most ﬁreplace applications. For positioning the
Retaining
Clamp
thermostat sensing bulb elsewhere, an adhesivebacked mounting clip is available.
Tools needed: 1/4" hex driver or socket
Figure 36 - Removing Thermostat
1. Remove logs. Locate the gas valve assembly
Sensing Bulb
and thermostat sensing bulb (see Figure 34). Thermostat
2. With 1/4" hex driver or socket, loosen the Sensing Bulb
thermostat screw. Carefully slide the thermostat
sensing bulb out of the retaining clamp (see
Figure 36).
Note: Do not remove the screw. Make sure
Adhesive-backed
you tighten the screw after removing the
Mounting Clip
thermostat sensing bulb.
IMPORTANT: Do not force or bend the Figure 37 - Locating Thermostat Sensing
thermostat sensing bulb or capillary.
Bulb on Masonry Fireplace
3. The thermostat sensing bulb may be located to
the lower right front side of ﬁreplace. Determine Thermostat
location of sensing bulb, but do not mount sens- Sensing Bulb
ing bulb until step 4. If you have a masonry ﬁreplace, see Figure 37 for location. If you have
a factory-built metal ﬁreplace, see Figure 38
for location. If your ﬁreplace has glass doors,
position sensing bulb directly behind door gap Adhesive-backed
on right bottom side (see Figure 39).
Mounting Clip
Gas Valve
Assembly

Figure 38 - Locating Thermostat Sensing
Bulb on Factory-built Metal Fireplace
Thermostat
Sensing Bulb

Mounting
Bracket

Thermostat
Sensing Bulb

Adhesivebacked
Mounting Clip

Figure 34 - Location of Gas Valve
Assembly and Thermostat Sensing Bulb
Glass Doors
Figure 39 - Installing Thermostat Sensing
Bulb behind Glass Doors
113101-01C

www.desatech.com

OPTIONAL POSITIONING
OF THERMOSTAT
SENSING BULB

Thermostat
Sensing Bulb

Continued
4. The mounting clip must be a minimum of 3"
from bottom of ﬁreplace to prevent crimping
of capillary. Once you have decided on a
location, clean the area thoroughly. Remove
the paper backing from the adhesive on back
of mounting clip. Press the clip into the new
location so that the thermostat sensing bulb
will be positioned vertically with the capillary at the bottom (see Figure 40). Slide the
thermostat sensing bulb into the clip.
IMPORTANT: Do not crimp capillary.

Adhesivebacked
Mounting Clip

Capillary
Do Not Crimp
Capillary
Figure 40 - Positioning the Thermostat
Sensing Bulb in the Vertical Position
with the Capillary at the Bottom

SPECIFICATIONS
18" Model
(CGS2718PA)

18" Model
(CLD3018PTA)

24" Model
(CGS3124PA)
(SGS3124PA)

24" Model
(CLD3924PTB)

Btu (Variable)
16,000/27,000
Type Gas
Propane/LP
Ignition
Piezo
Manifold Pressure
8.0" W.C.
Inlet Gas Pressure (in. of water)
Maximum
14"
Minimum*
11"
Shipping Weight
27 lbs.
* For the purpose of input adjustment

18,000/30,000
Propane/LP
Piezo
8.0" W.C.

16,000/31,500
Propane/LP
Piezo
8.0" W.C.

20,000/39,000
Propane/LP
Piezo
8.0" W.C.

14"
11"
27 lbs.

14"
11"
29lbs.

14"
11"
27 lbs.

18" Model
(CLD3018NTA)

24" Model
(CGS3124NA)
(SGS3124NA)

24" Model
(CLD3924NTB)

18,000/30,000
Natural Gas
Piezo
3.5" W.C.

16,000/31,500
Natural Gas
Piezo
3.5" W.C.

20,000/39,000
Natural Gas
Piezo
3.5" W.C.

10.5"
5"
27 lbs.

10.5"
5"
29 lbs.

10.5"
5"
29 lbs

18" Model
(CGS2718NA)

Btu (Variable)
16,000/27,000
Type Gas
Natural Gas
Ignition
Piezo
Manifold Pressure
3.5" W.C.
Inlet Gas Pressure (in. of water)
Maximum
10.5"
Minimum*
5"
Shipping Weight
27 lbs.
* For the purpose of input adjustment

www.desatech.com

113101-01C

ACCESSORIES
Purchase these ﬁreplace accessories from your
local dealer. If they can not supply these accessories, either contact your nearest Parts Central or
call DESA Heating Productsʼ Sales Department
at 1-866-672-6040 for 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.

DAMPER CLAMP - GA6080
(Not Shown)
For variably-controlled models. Permanently
opens chimney ﬂue damper for vented operation.

FIREPLACE HOOD
Black - GA6050
Brass - GA6052
Antique Brass - GA6053
For all models. Helps deﬂect heat away from
mantel or wall above ﬁreplace.

LAVA ROCK - GA6060
(Not Shown)
For all models. Order when additional rock is
desired. (2 lb. bag).

INFORMATION VIDEO - 108917-01
For all models. A care and maintenance video is
available by calling 1-866-672-6040. You may
also email your request to
productsupport@desaint.com.

PARTS CENTRAL
These Parts Centrals are privately owned businesses. They have agreed to support our customerʼs needs
by providing original replacement parts and accessories.
Tool & Equipment, Co.
5 Manila Ave
Hamden, CT 06514-0322
1-800-397-7553
203-248-7553
Parts Department
Portable Heater Parts
342 N. County Rd. 400 East
Valparaiso, IN 46383-9704
All States
219-462-7441
1-888-619-7060
sales@portableheaterparts.com
techservice@portableheaterparts.com
FBD
1349 Adams Street
Bowling Green, KY 42103-3414
270-846-1199
1-800-654-8534
Fax: 1-800-846-0090
franktalk@aol.com
Master Parts Dist.
1251 Mound Ave. NW
Grand Rapids, MI 49504-2672
616-791-0505
1-800-446-1446
Fax: 616-791-8270
www.nbmc.com
113101-01C

Washer Equipment Co.
1715 Main Street
Kansas City, MO 64108-2195
KS, MO, AR
816-842-3911
www.washerparts.com
East Coast Energy Products
707 Broadway
W. Long Branch, NJ 07764-1542
732-870-8809
1-800-755-8809
www.njplaza.com/ecep
21st Century
2950 Fretz Valley Road
Perkasie, PA 18944-4034
215-795-0400
800-325-4828
Laporte’s Parts & Service
2444 N. 5th Street
Hartsville, SC 29550-7704
843-332-0191
Parts Department
Cans Unlimited, Inc.
P.O. Box 645
Taylor, SC 29687-0013
All States
803-879-3009
1-800-845-5301
cuisales@aol.com
www.desatech.com

ILLUSTRATED PARTS BREAKDOWN
VARIABLE MANUALLY-CONTROLLED WINCHESTER OAK MODELS
CGS2718NA, CGS2718PA
CGS3124NA, CGS3124PA
SGS3124NA, SGS3124PA
4
3

1
18

19
20

11
12
13

9
8

22
10

19
7
17

20
16

www.desatech.com

113101-01C

PARTS LIST
VARIABLE MANUALLY-CONTROLLED WINCHESTER OAK MODELS
This list contains replaceable parts used in your heater. When ordering parts, follow the instructions
listed under Replacement Parts on page 24 of this manual.

KEY
NO.

CGS2718N

PART NUMBER
CGS2718P
CGS3124N
SGS3124N

CGS3124P
SGS3124P

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

113571-02
113571-01
113571-03
113571-04
**
102844-01
098276-01
098867-14
111331-04
102798-01
099056-20
111124-01
102963-02
102568-07
098508-01
098354-01
102445-01
098249-01
099387-08
098271-10
104285-01
M11084-38

113571-02
113571-01
113571-03
113571-04
**
102844-01
098276-01
098867-10
102780-05
102798-01
099056-21
111124-01
102963-02
102568-08
098508-01
098354-01
102445-01
098249-01
099387-08
098271-10
104286-01
M11084-38

113572-02
113572-01
113572-03
113572-04
**
102844-01
098276-01
098867-10
102780-05
102798-01
099056-19
111124-01
102773-03
102568-08
098508-01
098354-01
102445-01
098249-01
099387-08
098271-10
104286-01
M11084-38

113572-02
113572-01
113572-03
113572-04
**
102844-01
098276-01
098867-14
111331-04
102798-01
099056-18
111124-01
102773-03
102568-07
098508-01
098354-01
102445-01
098249-01
099387-08
098271-10
104285-01
M11084-38

DESCRIPTION

Back Log (#1)
Front Log (#2)
Left Crossover Log (#3)
Right Crossover Log (#4)
Painted Base Assembly
Lower Bracket
Hex Head Plug, 1/8" NPT
Gas Regulator
Outlet Burner Tube
Inlet Tube
Burner Oriﬁce Injector
Burner Retainer Spring
Burner
Control Valve
Valve Retainer Nut
Control Knob
Piezo Ignitor
Nut, M5
Pilot Tube
Ignitor Cable
ODS Pilot
Screw, Hex Head
(#8-18 x .38)

QTY.

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
8

PARTS AVAILABLE — NOT SHOWN

100563-01
101055-02
100565-01
100639-01
101449-04
101137-02
GA6060

Warning Plate
Lighting Instructions Plate
Warning Plate Fastener
Caution Decal
Control Position Decal
Hardware Kit
Lava Rock

1
1
1
1
1
1
1

** Not a ﬁeld replaceable part.

113101-01C

www.desatech.com

ILLUSTRATED PARTS BREAKDOWN
THERMOSTATICALLY-CONTROLLED ROYAL ENGLISH OAK MODELS
CLD3924NTB, CLD3924PTB
CLD3018NTA, CLD3018PTA

2
6

7
5

3
21

10
15

www.desatech.com

113101-01C

PARTS LIST
THERMOSTATICALLY-CONTROLLED ROYAL ENGLISH OAK MODELS
This list contains replaceable parts used in your heater. When ordering parts, follow the instructions
listed under Replacement Parts on page 24 of this manual.
KEY

PART NUMBER

NO.

CLD3924NTB CLD3924PTB CLD3018NTA CLD3018PTA DESCRIPTION

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

117230-05
117230-04
117230-06
117230-07
117230-08
117230-10
117230-09
102844-01
098867-14
102981-01
102983-01
099056-16
111124-01
102772-01
101329-20

117230-05
117230-04
117230-06
117230-07
117230-08
117230-10
117230-09
102844-01
098867-10
102981-01
102983-01
099056-17
111124-01
102772-01
101329-19

117230-02
117230-01
117230-03
117230-07
117230-08
117230-10
117230-09
102844-02
098867-14
102981-01
111331-08
099056-18
111124-01
102980-01
101329-21

117230-02
117230-01
117230-03
117230-07
117230-08
117230-10
117230-09
102844-02
098867-10
102981-01
102983-06
099056-19
111124-01
102980-01
101329-30

16
17
18
19
20
21
22
23
24
25

102979-01
098544-01
102445-01
099387-09
098271-10
104285-01
M11084-38
098249-01
099211-01
**

102979-01
098544-01
102445-01
099387-09
098271-10
104286-01
M11084-38
098249-01
099211-01
**

102979-01
098544-01
102445-01
099387-09
098271-10
104285-01
M11084-38
098249-01
099211-01
**

102979-01
098544-01
102445-01
099387-09
098271-10
104286-01
M11084-38
098249-01
099211-01
**

100563-01
101054-01

100565-01
100639-02
101137-02
GA6060

QTY.

Middle Log (#1)
1
Rear Log (#2)
1
Right Front Log (#3)
1
Left Front Log (#4)
1
Left Top Log (#5)
1
Right Top Log (#6)
1
Middle Top Log (#7)
1
Lower Bracket
1
Gas Regulator
1
Inlet Tube
1
Outlet Burner Tube
1
Burner Oriﬁce Injector 1
Burner Retainer Spring
1
Burner
1
Thermostat Gas
Valve Assembly
1
Thermostat Bracket
1
Thermobulb Clip
1
Piezo Ignitor
1
Pilot Tube
1
Ignitor Cable
1
ODS Pilot
1
Hex Screw, #8-18 x .38 13
Nut, M5
2
Hex Screw, 10-16 x 2.50 2
Painted Base Assembly 1

PARTS AVAILABLE — NOT SHOWN

Warning Plate
Lighting Instructions
Plate
Warning Plate Fastener
Caution Decal
Hardware Kit
Lava Rock

1
1
1
1
1
1

** Not a ﬁeld replaceable part.

113101-01C

www.desatech.com

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
VENT-FREE GAS FIREPLACE
DESA Heating Products warrants this product to be free from defects in materials and components for two (2)
years 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 heater to proper operating condition and an allowance for labor when provided by a DESA Heating
Products Authorized Service Center. Warranty part(s) MUST be obtained through authorized dealers of this product
and/or DESA Heating Products who will provide original factory replacement parts. Failure to use original factory
replacement parts voids this warranty. The heater 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 heater 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 TWO (2) YEARS
ON ALL COMPONENTS FROM THE DATE OF FIRST PURCHASE; AND DESA HEATING PRODUCTSʼ
LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND DESA HEATING
PRODUCTS 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:

2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004
www.desatech.com

113101 01

NOT A UPC

113101-01
Rev. C
06/05

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