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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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.

ROYAL ENGLISH OAK AND WINCHESTER OAK UNVENTED

(VENT-FREE) GAS LOG HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

Patent Pending

Variable Manually-Controlled Models Also Design-Certified as

Vented Decorative Appliances

18" AND 24" VARIABLE MANUALLY-CONTROLLED MODELS

CGS2718PA, CGS2718NA, CGS3124PA, CGS3124NA

SGS3124PA, SGS3124NA

18" AND 24" THERMOSTATICALLY-CONTROLLED MODELS

CLD3018PTA, CLD3018NTA CLD3924PTB, CLD3924NTB

www.desatech.com 113101-01C

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 fire-

place or in a listed ventless firebox enclosure. It is de-

sign-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. Provi-

sions 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,* 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. This appliance is not convert-

ible 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 3

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.

IMPORTANT: Read this owner’s

manual carefully and completely

before trying to assemble, op-

erate or service this fireplace.

Improper use of this fireplace

can cause serious injury or

death from burns, fire, explo-

sion, 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: Any change to

this heater or its controls can

be dangerous.

WARNING: Do not use a

blower insert, heat exchanger

insert or other accessory not ap-

proved for use with this heater.

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 chil-

dren when they are in the room

with heater. When using the hand-

held remote accessory, keep se-

lector switch in the OFF position

to prevent children from turning

on burners with remote.

You must operate this heater

with a fireplace screen in place.

Make sure fireplace screen is

closed before running heater.

Keep the appliance area clear

and free from combustible ma-

terials, gasoline and other flam-

mable vapors and liquids.

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4

SAFETY INFORMATION

Continued

Figure 1 - Yellow Flame Vent-Free Gas

Log Heater Shown (Logs May Vary by

Model)

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) in-

side 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 appli-

ance (Variable Manually-Controlled Models

Only) (see Installing Damper Clamp Acces-

sory 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 fire-

place 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 manu-

facturing residues.

10. To prevent the creation of soot, follow the

instructions in Cleaning and Maintenance,

page 23.

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 De-

pletion 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 (dime-

sized 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

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113101-01C 5

LOCAL CODES

Install and use heater 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/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.

PRODUCT FEATURES

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 Deple-

tion 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 re-

quires 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 con-

struction unless provisions are

provided for adequate combus-

tion 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 effi-

cient, your home needs to breathe. Fresh air must

enter your home. All fuel-burning appliances need

fresh air for proper combustion and ventilation.

UNPACKING

CAUTION: Do not remove the

data plates from the grate as-

sembly. 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 as-

sembly 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.

State of Massachusetts: The installa-

tion 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.

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6

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 fol-

lowing 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 out-

side 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.

AIR FOR COMBUSTION

AND VENTILATION

Continued

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 com-

municating 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 pas-

sageways 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 = (Maxi-

mum 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. Di-

rect-vent draws combustion air from the outdoors

and vents to the outdoors.

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113101-01C 7

Example:

Gas water heater __________ Btu/Hr

Vent-free fireplace +

__________ Btu/Hr

Total =

__________ Btu/Hr

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 ad-

ditional fresh air. Your options are as follows:

A. Rework worksheet, adding the space of an adjoin-

ing 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 Ventila-

tion 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 un-

confined space. You will need no additional fresh

air ventilation.

WARNING: If the area in

which the heater may be oper-

ated 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.

VENTILATION AIR

Ventilation Air From Inside Building

This fresh air would come from an adjoining un-

confined space. When ventilating to an adjoining

unconfined space, you must provide two perma-

40,000

31,500

71,500

AIR FOR COMBUSTION

AND VENTILATION

Continued

Figure 2 - Ventilation Air from Inside

Building

Or

Remove

Door into

Adjoining

Room,

Option

3

Ventilation Grills

Into Adjoining Room,

Option 2

Ventilation

Grills

Into Adjoining

Room,

Option 1

12"

12"

Figure 3 - Ventilation Air from Outdoors

Outlet

Air

Ventilated

Attic

Outlet

A

ir

Inlet

Air

Inlet Air Ventilated

Crawl Space

To

Crawl

Space

To Attic

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.

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 thermostat-

controlled power vent. Heated air entering the attic

will activate the power vent.

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8

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, cloth-

ing 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, to-

bacco 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 pro-

pane/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 pro-

pane/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.

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 pri-

mary 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 ser-

vice person must install heater.

Follow all local codes.

NOTICE: State or local codes may

only allow operation of this appli-

ance 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, 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 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 fire-

place. If not, drafting may cause

pilot outage or sooting. Use a

heat-resistant sealant. Do not

seal chimney flue damper.

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113101-01C 9

LOG SIZING REQUIREMENTS

Minimum Firebox Size

Log Front Rear

Size Height Depth Width Width*

18" 17" 14" 24" 20"

24" 17" 14" 28" 21"

MINIMUM FIREPLACE CLEARANCE

TO COMBUSTIBLE MATERIALS

Log Size Side Wall Ceiling

18", 24" 16" 42"

*Measured at 14" Depth

Carefully follow the instructions below. This will

ensure safe installation into a masonry, UL127-

listed 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 combus-

tible 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.

Figure 4 - Minimum Clearance for

Combustible to Wall

*Minimum 16 inches from Side Wall

*

Example

INSTALLATION

Continued

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 fire-

place 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 Noncombustible material okay.

Between 8" 24" Model: Install fireplace

and 12" hood accessory (GA6050,

GA6052 or GA6053,see

Accessories, page 31).

18" Model: Noncombustible

material okay.

Less than 8" 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)

Figure 5 - Heat Resistant Material (Slate,

Marble, Tile, etc.) Above Fireplace

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10

Minimum Non-

Combustible

Material

Minimum Non-

Combustible

Material Height

Distances to

Underside of

Mantel

Top of Fireplace

Opening

Underside of

Mantel Shelf

Mantel Shelf

12"

8"

(A)

18"

8"

20"

14"

22"

17"

24"

20"

All minimum

distances are

in inches

Log Set

24" Model

18" Model

2 1/2"

6"

8"

10"

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.

INSTALLATION

Continued

MANTEL CLEARANCES

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 be-

come hot during operation. Walls

and mantels above the firebox

may become hot to the touch.

If installed properly, these tem-

peratures meet the requirement

of the national product standard.

Follow all minimum clearances

shown in this manual.

Figure 6 - Minimum Mantel Clearances Without Using Hood

www.desatech.com

113101-01C 11

INSTALLATION

Continued

Figure 7 - Minimum Mantel Clearances When Using Hood

Minimum Non-

Combustible

Material 8"

Min.

12" 15"

18"

All minimum

distances are

in inches

Log Set

18" and 24"

Models

20"

2 1/2"

6"

8"

10"

12"

Distances to

Underside of

Mantel

Hood

(GA6050, GA6052)

Top of Fireplace

Opening

Underside of

Mantel Shelf

Mantel Shelf

(GA6050, GA6052

or GA6053)

14"

Min.

Combustible

Material

Noncombustible Material

Hearth

5"

Min.

Combustible

Material

Figure 9 - Minimum Fireplace Clearances

Above Combustible Flooring

Figure 8 - Minimum Fireplace Clearances

If Installed at Floor Level

NOTICE: If your installation does

not meet the minimum clear-

ances shown, you must do one

of the following:

• operate the logs only with the

flue damper open

• raise the mantel to an accept-

able 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).

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12

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

Chimney Minimum Permanent

Height (ft.) Flue Opening (sq. ins.)

6' to 15' 39 sq. inches

15' to 30' 29 sq. inches

Figure 10 - Attaching Damper Clamp

Manufactured

Fireplace

Masonry Fireplace

Damper

Damper

Clamp

Damper

Damper

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.

INSTALLATION

Continued

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 in-

sure adequate air flow and guard

against sooting and controls be-

ing 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 as-

sembly by grates.

www.desatech.com

113101-01C 13

INSTALLATION

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 mount-

ing 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).

Figure 12 - Attaching Base Assembly to

Fireplace Floor

Heater Gas

Regulator

Flexible Gas Hose

(if allowed by local codes)

Figure 11 - Attaching Flexible Gas Hose

to Heater Gas Regulator

Fitting

Masonry

Screw

Mounting

Bracket

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 regu-

lator (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.

www.desatech.com 113101-01C

14

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 pres-

sure, 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.

INSTALLATION

Continued

Figure 13 - External Regulator With Vent

Pointing Down

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 turn-

ing on or shutting off the gas to the appliance.

Check your building codes for any special re-

quirements 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.

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.

Tee Cap Pipe

Joint Nipple

3" Min.

Sediment Trap

Gas

Regulator

CSA Design-Certified

Equipment Shutoff Valve

With 1/8" NPT Tap*

Approved

Flexible

Gas Hose (if

allowed by

local codes)

Natural

From Gas Meter

(5" W.C.** to

10.5" W.C.

Pressure)

Propane/LP

From External

Regulator

(11" W.C.**

to 14" W.C.

Pressure

Propane/LP

Supply Tank

External

Regulator

Vent

Pointing

Down

www.desatech.com

113101-01C 15

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 de-

tection solution to all joints.

Bubbles forming show a leak.

Correct all leaks at once.

CAUTION: For propane/LP

units, make sure external regula-

tor has been installed between

propane/LP supply and heater.

See guidelines under Connecting

to Gas Supply, page 13.

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 ex-

cess 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.

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.

Figure 15 - Equipment Shutoff Valve

Equipment Shutoff Valve

Propane/LP

Supply Tank

Control Valve

Location

Figure 17 - Checking Gas Joints

(Natural Gas Only)

Gas

Meter

Equipment Shutoff Valve

Control Valve Location

Figure 16 - Checking Gas Joints

(Propane/LP Gas Only)

Open

Closed

Equipment

Shutoff Valve

www.desatech.com 113101-01C

16

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 Appli-

ance, page 20 [manually-controlled models] or

page 22 [thermostatically-controlled models]).

INSTALLING LOGS, MODELS

CGS2718PA, CGS2718NA,

CGS3124PA, CGS3124NA,

SGS3124PA AND SGS3124NA

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 installa-

tion 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 contact-

ing logs will create soot.

INSTALLATION

Continued

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.

Figure 18 - Installing Back Log

Back Log (#1)

Hole

Figure 19 - Installing Front Log

Front

Log (#2)

Notch

Tabs of

Grate Base

www.desatech.com

113101-01C 17

Figure 20 - Installing Crossover Logs

Crossover

Log (#3)

Pegs

INSTALLATION

Continued

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 installa-

tion 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 contact-

ing 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.

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).

Figure 21 - Installing Middle Log (#1)

Middle Log (#1)

Tab

Burner

“U” Bend

U-Shaped Slot

Figure 22 - Installing Back Log (#2)

Hole in Grate

Base

Back Log

(#2)

Peg

Burner

Crossover

Log (#4)

Pegs

www.desatech.com 113101-01C

18

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 de-

sired. Do not place any lava rock on logs or

burner.

INSTALLATION

Continued

Grate Fingers

Figure 23 - Installing Front Logs

(#3 and #4)

Figure 24 - Installing Crossover Logs

(#5 and #6)

Crossover

Log (#5)

OPERATING HEATER

MANUALLY-CONTROLLED

MODELS

FOR YOUR SAFETY

READ BEFORE LIGHTING

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.

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 tech-

nician 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.

Log #4

Log #3

Crossover

Log (#6)

Figure 25 - Installing Crossover Log (#7)

Crossover

Log (#7)

www.desatech.com

113101-01C 19

LIGHTING

INSTRUCTIONS

WARNING:

• If fireplace has glass doors,

never operate this heater with

glass doors closed. If you op-

erate 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 run-

ning heater.

NOTICE: During initial operation

of new heater, burning logs will

give off a paper-burning smell.

Orange flame will also be pres-

ent. Open damper or window to

vent smell. This will only last a

few hours.

Note: Home owners generally prefer to op-

erate 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.

OPERATING HEATER

Continued

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

counterclockwise to the PILOT

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 sup-

ply. 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 pi-

lot. 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 coun-

terclockwise to desired heating level.

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.

Figure 26 - Control Knob and Ignitor

Button Location

PILOT

OFF

LO

HI

Ignitor Button Control Knob

www.desatech.com 113101-01C

20

Figure 27 - Pilot

Thermocouple

Ignitor

Electrode Pilot Burner

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 re-

alistic, dancing yellow flames. Selecting higher

settings produces greater heat output. This

results in increased heating comfort.

CAUTION: Do not try to ad-

just 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.

2. Turn control knob clockwise to the

pilot position.

3. Press in control knob and turn clockwise

to the OFF position.

Shutting Off Burners Only (pilot stays lit)

1. Turn control knob clockwise to the

HI position.

2. Press in and turn control knob clockwise

to the pilot position.

Propane/LP

Natural Gas

OPERATING HEATER

Continued

FOR YOUR SAFETY

READ BEFORE LIGHTING

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.

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 tech-

nician 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.

THERMOSTATICALLY-

CONTROLLED MODELS

MANUAL LIGHTING

PROCEDURE

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.

Thermocouple

Ignitor Electrode Pilot Burner

www.desatech.com

113101-01C 21

LIGHTING

INSTRUCTIONS

WARNING

• If fireplace has glass doors,

never operate this heater with

glass doors closed. If you op-

erate 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 op-

erate 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 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).

OPERATING HEATER

Continued

Note: You may be running this heater 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 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.

CAUTION: Do not try to ad-

just heating levels by using the

equipment shutoff valve.

LO

HI

OFF

Pilot

Figure 28 - Control Knob and Ignitor

Button Location

Control Knob

Ignitor Button

Figure 29 - Pilot

Ignitor

Electrode Pilot Burner

Propane/LP

Natural Gas

Ignitor

Electrode

Thermocouple

www.desatech.com 113101-01C

22

OPERATING HEATER

Continued

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Heater

Turn control knob clockwise to the OFF

position.

Shutting Off Burners Only (pilot stays lit)

Turn control knob clockwise to the

PILOT position.

THERMOSTAT CONTROL

OPERATION

The thermostat control knob can be set to any

comfort level between HI and LO. The ther-

mostat 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

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.

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.

INSPECTING BURNERS

Check pilot flame pattern and burner flame pat-

terns often.

PILOT FLAME PATTERN

Figure 30 shows a correct pilot flame pattern.

Figure 31 shows an incorrect pilot flame pat-

tern. 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.

Figure 30 - Correct Pilot Flame Pattern

Figure 31 - Incorrect Pilot Flame Pattern

Pilot Burner

Thermocouple

Pilot Burner

Propane/LP Natural Gas

Pilot Burner Pilot Burner

Thermocouple

Propane/LP Natural Gas

If pilot flame pattern is incorrect, as shown in

Figure 31

• turn heater off (see To Turn Off Gas to Appli-

ance, 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.

www.desatech.com

113101-01C 23

CLEANING AND

MAINTENANCE

WARNING: Turn off heater

and let cool before cleaning.

CAUTION: You must keep

control areas, burner and circu-

lating air passageways of heater

clean. Inspect these areas of

heater before each use. Have

heater inspected yearly by a quali-

fied 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.

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 com-

pressed 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).

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 as-

sembly. 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.

Figure 32 - Injector Holder On Outlet

Burner Tube

Burner Tube

Primary Air Inlet Holes

(Shape of Holes May

Vary by Model)

Injector Holder (May

Be Brass or Aluminum

Depending on Model)

Figure 33 - Pilot Inlet Air Hole

Burner

Tube

Ports/Slots

Pilot

Assembly

Pilot Air

Inlet Hole

www.desatech.com 113101-01C

24

LOGS

• If you remove logs for cleaning, refer to Install-

ing 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 techni-

cal service web site at www.desatech.com.

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, con-

tact your local natural or propane/LP gas supplier.

CLEANING AND

MAINTENANCE

Continued

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

www.desatech.com

113101-01C 25

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.

POSSIBLE CAUSE

1. Ignitor electrode not con-

nected to ignitor cable

2. Ignitor cable pinched or wet

3. Piezo ignitor nut is loose

4. Broken ignitor cable

5. Bad piezo ignitor

6. Ignitor electrode broken

7. Ignitor electrode positioned

wrong

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. Depleted gas supply (propane/

LP only)

6. ODS/pilot is clogged

7. Gas regulator setting is not

correct

OBSERVED PROBLEM

When ignitor button is pressed,

there is no spark at ODS/pilot

When ignitor button is pressed,

there is spark at ODS/pilot but

no ignition

REMEDY

1. Reconnect ignitor cable

2. Free ignitor cable if pinched

by any metal or tubing. Keep

ignitor cable dry

3.

Tighten nut holding piezo ig-

nitor to base panel of log set. Nut

is located behind base panel

4. Replace ignitor cable

5. Replace piezo ignitor

6. Replace pilot assembly

7. Replace pilot assembly

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 con-

trol knob. Repeat igniting op-

eration until air is removed

5. Contact local propane/LP gas

company

6. Clean ODS/pilot (see Cleaning

and Maintenance, page 23) or

replace ODS/pilot assembly

7. Replace gas regulator

www.desatech.com 113101-01C

26

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

ODS/pilot lights but flame goes

out when control knob is re-

leased

Burner does light after ODS/pi-

lot is lit

Delayed ignition of burner

Burner backfiring during com-

bustion

REMEDY

1. Press in control knob fully

2. After ODS/pilot lights, keep con-

trol knob pressed in 30 seconds

3. Wait one minute for safety in-

terlock system to reset. Repeat

ignition operation

4. Fully open equipment shutoff

valve

5. A) Contact local natural or

propane/LP gas company

B) Clean ODS/pilot (see

Cleaning and Maintenance,

page 23) or replace ODS/pilot

assembly

6. Hand tighten until snug, then

tighten 1/4 turn more

7. Replace pilot assembly

8. Replace control valve

1. Clean burner (see Cleaning

and Maintenance, page 23) or

replace burner orifice

2. Contact local natural or pro-

pane/LP gas company

1. Contact local natural or pro-

pane/LP gas company

2. Clean burner (see Cleaning

and Maintenance, page 23) or

replace burner orifice

1. Clean burner (see Cleaning

and Maintenance, page 23) or

replace burner orifice

2. Replace damaged burner

3. Replace gas regulator

POSSIBLE CAUSE

1. Control knob not fully pressed

in

2. Control knob not pressed in

long enough

3. Safety interlock system has

been triggered

4. Equipment shutoff valve not

fully open

5. Pilot flame not touching ther-

mocouple, which allows ther-

mocouple to cool, causing

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

ODS/pilot

6. Thermocouple connection

loose at control valve

7. Thermocouple damaged

8. Control valve damaged

1. Burner orifice clogged

2. Inlet gas pressure is too low

1. Manifold pressure is too low

2. Burner orifice clogged

1. Burner orifice is clogged or

damaged

2. Damaged burner

3. Gas regulator defective

www.desatech.com

113101-01C 27

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

Slight smoke or odor during initial

operation

Moisture/condensation noticed

on windows

Heater produces a whistling noise

when burner is lit

White powder residue forming

within burner box or on adjacent

walls or furniture

Heater produces a clicking/tick-

ing noise just after burner is lit

or shut off

REMEDY

1. Check burner for dirt and

debris. If found, clean burner

(see Cleaning and Mainte-

nance, page 23)

2. Replace gas regulator

3. Problem will stop after a few

hours of operation

1. Refer to Air for Combustion

and Ventilation requirements

(page 5)

1. Turn control knob to LO posi-

tion and let warm up for a

minute

2. Operate burner until air is

removed from line. Have gas

line checked by local natural

or propane/LP gas company

3. Observe minimum installation

clearances (see page 8)

4. Clean burner (see Cleaning

and Maintenance, page 23) or

replace burner orifice

1. Turn heater off when using

furniture polish, wax, carpet

cleaners or similar products

1. This is common with most heat-

ers. If noise is excessive, contact

qualified service person

POSSIBLE CAUSE

1. Not enough air

2. Gas regulator defective

3. Residues from manufacturing

processes and logs curing

1. Not enough combustion/ven-

tilation air

1. Turning control knob to HI

position when burner is cold

2. Air in gas line

3. Air passageways on heater

blocked

4. Dirty or partially clogged

burner orifice

1. When heated, vapors from

furniture polish, wax, carpet

cleaners, etc. may turn into a

white powder residue

1. Metal expanding while heating

or contracting while cooling

www.desatech.com 113101-01C

28

OBSERVED PROBLEM

Heater produces unwanted

odors

Heater shuts off in use (ODS

operates)

Gas odor even when control knob

is in OFF position

Gas odor during combustion

Log set cycles to pilot, but room

temperature drops to a lower than

ideal level before log set comes

back on

POSSIBLE CAUSE

1. Heater burning vapors from

paint, hair spray, glues, clean-

ers, chemicals, new carpet,

etc. (See IMPORTANT state-

ment above)

2. Low fuel supply (propane/LP

only)

3. Gas leak. See Warning

statement above

1. Not enough fresh air is avail-

able

2. Low line pressure

3. O D S / p i l o t i s p a r t i a l l y

clogged

1. Gas leak. See Warning

statement above

2. Control valve defective

1. Foreign matter between con-

trol valve and burner

2. Gas leak. See Warning

statement above

1. Thermostat sensing bulb needs

to be repositioned

REMEDY

1.

Open window and ventilate

room. Stop using odor caus-

ing products while heater is

running

2. Refill supply tank (propane/LP

only)

3. Locate and correct all leaks

(see Checking Gas Connec-

tions, page 15)

1. Open window and/or door for

ventilation

2. Contact local natural or pro-

pane/LP gas company

3. Clean ODS/pilot (see Cleaning

and Maintenance, page 23)

1. Locate and correct all leaks

(see Checking Gas Connec-

tions, page 15)

2. Replace control valve

1. Take apart gas tubing and

remove foreign matter

2. Locate and correct all leaks (see

Checking Gas Connections,

page 15)

1. Reposition thermostat sensing

bulb (see Optional Positioning

of Thermostat Sensing Bulb,

page 29

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. Fol-

low 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.

www.desatech.com

113101-01C 29

OPTIONAL POSITIONING

OF THERMOSTAT

SENSING BULB

FOR MASONRY AND FACTORY-

BUILT METAL FIREPLACE

If your log set cycles to pilot, but the room tem-

perature drops to a lower than ideal comfort level

before the log set comes back on, you may want

to reposition the thermostat sensing 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

thermostat sensing bulb elsewhere, an adhesive-

backed mounting clip is available.

Tools needed: 1/4" hex driver or socket

1. Remove logs. Locate the gas valve assembly

and thermostat sensing bulb (see Figure 34).

2. With 1/4" hex driver or socket, loosen the

thermostat screw. Carefully slide the thermostat

sensing bulb out of the retaining clamp (see

Figure 36).

Note: Do not remove the screw. Make sure

you tighten the screw after removing the

thermostat sensing bulb.

IMPORTANT: Do not force or bend the

thermostat sensing bulb or capillary.

3. The thermostat sensing bulb may be located to

the lower right front side of fireplace. Determine

location of sensing bulb, but do not mount sens-

ing bulb until step 4. If you have a masonry fire-

place, 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

on right bottom side (see Figure 39).

Thermostat

Sensing Bulb

Figure 34 - Location of Gas Valve

Assembly and Thermostat Sensing Bulb

Gas Valve

Assembly

Mounting

Bracket

Figure 35 - Adhesive-backed Mounting Clip

Figure 36 - Removing Thermostat

Sensing Bulb

Thermostat

Screw

Thermostat

Sensing

Bulb

Capillary

Retaining

Clamp

Adhesive-backed

Mounting Clip

Figure 37 - Locating Thermostat Sensing

Bulb on Masonry Fireplace

Thermostat

Sensing Bulb

Thermostat

Sensing Bulb

Figure 38 - Locating Thermostat Sensing

Bulb on Factory-built Metal Fireplace

Adhesive-backed

Mounting Clip

Glass Doors

Figure 39 - Installing Thermostat Sensing

Bulb behind Glass Doors

Thermostat

Sensing Bulb

Adhesive-

backed

Mounting Clip

www.desatech.com 113101-01C

30

SPECIFICATIONS

18" Model 18" Model 24" Model 24" Model

(CGS2718PA) (CLD3018PTA) (CGS3124PA) (CLD3924PTB)

(SGS3124PA)

Btu (Variable) 16,000/27,000 18,000/30,000 16,000/31,500 20,000/39,000

Type Gas Propane/LP Propane/LP Propane/LP Propane/LP

Ignition Piezo Piezo Piezo Piezo

Manifold Pressure 8.0" W.C. 8.0" W.C. 8.0" W.C. 8.0" W.C.

Inlet Gas Pressure (in. of water)

Maximum 14" 14" 14" 14"

Minimum* 11" 11" 11" 11"

Shipping Weight 27 lbs. 27 lbs. 29lbs. 27 lbs.

* For the purpose of input adjustment

18" Model 18" Model 24" Model 24" Model

(CGS2718NA) (CLD3018NTA) (CGS3124NA) (CLD3924NTB)

(SGS3124NA)

Btu (Variable) 16,000/27,000 18,000/30,000 16,000/31,500 20,000/39,000

Type Gas Natural Gas Natural Gas Natural Gas Natural Gas

Ignition Piezo Piezo Piezo Piezo

Manifold Pressure 3.5" W.C. 3.5" W.C. 3.5" W.C. 3.5" W.C.

Inlet Gas Pressure (in. of water)

Maximum 10.5" 10.5" 10.5" 10.5"

Minimum* 5" 5" 5" 5"

Shipping Weight 27 lbs. 27 lbs. 29 lbs. 29 lbs

* For the purpose of input adjustment

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 capil-

lary at the bottom (see Figure 40). Slide the

thermostat sensing bulb into the clip.

IMPORTANT: Do not crimp capillary.

OPTIONAL POSITIONING

OF THERMOSTAT

SENSING BULB

Continued

Capillary

Thermostat

Sensing Bulb

Do Not Crimp

Capillary

Adhesive-

backed

Mounting Clip

Figure 40 - Positioning the Thermostat

Sensing Bulb in the Vertical Position

with the Capillary at the Bottom

www.desatech.com

113101-01C 31

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

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

ACCESSORIES

Purchase these fireplace accessories from your

local dealer. If they can not supply these acces-

sories, 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.

www.desatech.com 113101-01C

32

3

2

18

20

21

19

12

8

9

10

22

19

7

14

6

22

22

17

5

20

15

16

11

13

1

4

ILLUSTRATED PARTS BREAKDOWN

VARIABLE MANUALLY-CONTROLLED WINCHESTER OAK MODELS

CGS2718NA, CGS2718PA

CGS3124NA, CGS3124PA

SGS3124NA, SGS3124PA

www.desatech.com

113101-01C 33

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.

PART NUMBER

KEY CGS2718N CGS2718P CGS3124N CGS3124P

NO. SGS3124N SGS3124P DESCRIPTION QTY.

1 113571-02 113571-02 113572-02 113572-02 Back Log (#1) 1

2 113571-01 113571-01 113572-01 113572-01 Front Log (#2) 1

3 113571-03 113571-03 113572-03 113572-03 Left Crossover Log (#3) 1

4 113571-04 113571-04 113572-04 113572-04 Right Crossover Log (#4) 1

5 ** ** ** ** Painted Base Assembly 1

6 102844-01 102844-01 102844-01 102844-01 Lower Bracket 1

7 098276-01 098276-01 098276-01 098276-01

Hex Head Plug, 1/8" NPT

1

8 098867-14 098867-10 098867-14 098867-10 Gas Regulator 1

9 111331-04 102780-05 111331-04 102780-05 Outlet Burner Tube 1

10 102798-01 102798-01 102798-01 102798-01 Inlet Tube 1

11 099056-20 099056-21 099056-18 099056-19 Burner Orifice Injector 1

12 111124-01 111124-01 111124-01 111124-01 Burner Retainer Spring 1

13 102963-02 102963-02 102773-03 102773-03 Burner 1

14 102568-07 102568-08 102568-07 102568-08 Control Valve 1

15 098508-01 098508-01 098508-01 098508-01 Valve Retainer Nut 1

16 098354-01 098354-01 098354-01 098354-01 Control Knob 1

17 102445-01 102445-01 102445-01 102445-01 Piezo Ignitor 1

18 098249-01 098249-01 098249-01 098249-01 Nut, M5 2

19 099387-08 099387-08 099387-08 099387-08 Pilot Tube 1

20 098271-10 098271-10 098271-10 098271-10 Ignitor Cable 1

21 104285-01 104286-01 104285-01 104286-01 ODS Pilot 1

22 M11084-38 M11084-38 M11084-38 M11084-38 Screw, Hex Head

(#8-18 x .38) 8

PARTS AVAILABLE — NOT SHOWN

100563-01 100563-01 100563-01 100563-01 Warning Plate 1

101055-02 101055-02 101055-02 101055-02

Lighting Instructions Plate

1

100565-01 100565-01 100565-01 100565-01 Warning Plate Fastener 1

100639-01 100639-01 100639-01 100639-01 Caution Decal 1

101449-04 101449-04 101449-04 101449-04 Control Position Decal 1

101137-02 101137-02 101137-02 101137-02 Hardware Kit 1

GA6060 GA6060 GA6060 GA6060 Lava Rock 1

** Not a field replaceable part.

www.desatech.com 113101-01C

34

ILLUSTRATED PARTS BREAKDOWN

THERMOSTATICALLY-CONTROLLED ROYAL ENGLISH OAK MODELS

CLD3924NTB, CLD3924PTB

CLD3018NTA, CLD3018PTA

15

21

19

20

23

13

12

8

14

10

9

22

11

24

16

22

17

22

22

25

18

20

22

1

2

3

4

5

76

www.desatech.com

113101-01C 35

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 QTY.

1 117230-05 117230-05 117230-02 117230-02 Middle Log (#1) 1

2 117230-04 117230-04 117230-01 117230-01 Rear Log (#2) 1

3 117230-06 117230-06 117230-03 117230-03 Right Front Log (#3) 1

4 117230-07 117230-07 117230-07 117230-07 Left Front Log (#4) 1

5 117230-08 117230-08 117230-08 117230-08 Left Top Log (#5) 1

6 117230-10 117230-10 117230-10 117230-10 Right Top Log (#6) 1

7 117230-09 117230-09 117230-09 117230-09 Middle Top Log (#7) 1

8 102844-01 102844-01 102844-02 102844-02 Lower Bracket 1

9 098867-14 098867-10 098867-14 098867-10 Gas Regulator 1

10 102981-01 102981-01 102981-01 102981-01 Inlet Tube 1

11 102983-01 102983-01 111331-08 102983-06 Outlet Burner Tube 1

12 099056-16 099056-17 099056-18 099056-19 Burner Orifice Injector 1

13 111124-01 111124-01 111124-01 111124-01

Burner Retainer Spring

1

14 102772-01 102772-01 102980-01 102980-01 Burner 1

15 101329-20 101329-19 101329-21 101329-30 Thermostat Gas

Valve Assembly 1

16 102979-01 102979-01 102979-01 102979-01 Thermostat Bracket 1

17 098544-01 098544-01 098544-01 098544-01 Thermobulb Clip 1

18 102445-01 102445-01 102445-01 102445-01 Piezo Ignitor 1

19 099387-09 099387-09 099387-09 099387-09 Pilot Tube 1

20 098271-10 098271-10 098271-10 098271-10 Ignitor Cable 1

21 104285-01 104286-01 104285-01 104286-01 ODS Pilot 1

22 M11084-38 M11084-38 M11084-38 M11084-38

Hex Screw, #8-18 x .38

13

23 098249-01 098249-01 098249-01 098249-01 Nut, M5 2

24 099211-01 099211-01 099211-01 099211-01

Hex Screw, 10-16 x 2.50

2

25 ** ** ** **

Painted Base Assembly

1

PARTS AVAILABLE — NOT SHOWN

100563-01 100563-01 100563-01 100563-01 Warning Plate 1

101054-01 101054-01 101054-01 101054-01 Lighting Instructions

Plate 1

100565-01 100565-01 100565-01 100565-01

Warning Plate Fastener

1

100639-02 100639-02 100639-02 100639-02 Caution Decal 1

101137-02 101137-02 101137-02 101137-02 Hardware Kit 1

GA6060 GA6060 GA6060 GA6060 Lava Rock 1

** Not a field replaceable part.

2701 Industrial Drive

P.O. Box 90004

Bowling Green, KY 42102-9004

www.desatech.com

113101-01

Rev. C

06/05

NOT A UPC

WARRANTY INFORMATION

KEEP THIS WARRANTY

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 WAR-

RANTIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES, INCLUDING WAR-

RANTIES 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 INDI-

RECT, 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:

Model

Serial No.

Date Purchased

113101 01