Desa CGD3924NT, CGD3930NT, CGD3018NT, CGB3924NT, CGB3930NT User Manual

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BILTMORE SPLIT OAK, MOUNTAIN OAK,

PREMIUM AGED SPLIT OAK, AND

SMOKY MOUNTAIN OAK UNVENTED (VENT-FREE)

NATURAL GAS LOG HEATERS

VARIABLE MANUALLY-CONTROLLED MODELS ALSO DESIGNED CERTIFIED

AS VENTED DECORATIVE APPLIANCE

OWNER’S OPERATION AND INSTALLATION MANUAL

18", 24", and 30" Variable

Manually-Controlled Models

CGD3018N CY2718N CGD3924N CY3124N CGD3930N

Patent Pending

(Smoky Mountain Oak Model Shown)

CGD3924NT CGD3930NT CGD3018NT CGB3924NT CGB3930NT CCL3018NT CCL3924NT CCL3930NTA

18", 24" and 30"

Thermostatically-

Controlled Models

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.

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.

— 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 per-

formed by 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 an approved ventless firebox. It is designcertified for these installations in accordance with ANS 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 4 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 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

Save this manual for future reference.

VENT-FREE NATURAL GAS LOG HEATER

SAFETY INFORMATION

WARNINGS

IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, operate, or service this heater. Improper use of this heater 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 heater may not be working properly. Get fresh air at once! Have heater serviced. Some people are more affected by carbon monoxide than others. These include pregnant women, people with heart or lung disease or anemia, those under the influence of alcohol, and those at high altitudes.

Natural Gas: Natural gas is odorless. An

odor-making agent is added to the gas. The odor helps you detect a gas leak. However, the odor added to the gas can fade. Gas may be present even though no odor exists.

Make certain you read and understand all warnings. Keep this manual for reference. It is your guide to safe and proper operation of this heater.

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

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.

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

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.

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 materials, gasoline, and other flammable vapors and liquids.

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. 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

3. This heater shall not be installed in a bedroom or bathroom, unless installed as a vented appliance (Variable Manually-Controlled Models Only). See In-

stalling Damper Clamp Accessory for Vented Operation, page 10.

4. Before installing in a solid fuel burning fireplace, the chimney flue and firebox must be cleaned of soot, creosote, ashes, and loose paint by a qualified chimney cleaner. Creosote will ignite if highly heated. Inspect chimney flue for damage. If damaged, operate heater with flue damper closed.

5. 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. Also if fireplace opening has vents at the bottom, you must open the vents before operating heater.

6. 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.

7. T o prevent the creation of soot, follow the instructions in Cleaning and Main- tenance, page 21.

8. 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.

9. 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, pages 4 through 6. If heater keeps shutting off, see T rouble- shooting, pages 22 through 24.

10. Do not run heater

• where flammable liquids or vapors

are used or stored

• under dusty conditions

11. Do not use this heater to cook food or burn paper or other objects.

12. 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.

13. Do not operate heater if any log is broken. Do not operate heater if a log is chipped (dime-sized or larger).

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OWNER’S MANUAL

SAFETY INFORMATION

Continued

14. T urn heater of f and let cool before servicing. Only a qualified service person should service and repair heater.

15. Operating heater above elevations of 4,500 feet could cause pilot outage.

PRODUCT IDENTIFICATION

Crossover Log

Front Log

Piezo Ignitor

Control Knob

Figure 1 - Vent-Free Gas Log Heater - Duel Burner (Logs May Vary by Model Smoky Mountain Oak Logs Shown)

Back Log

Burner

Middle Log

Base Grate

LOCAL CODES

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, ANS Z223.1, also known as 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.

UNPACKING

CAUTION: Do not remove the metal data plates from the grate assembly. The data plates contain important product information.

1. Remove logs and heater base assembly from carton. 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.

Note:

Do not pick up

Back Log

Crossover Log

Front Log

Burner

Piezo Ignitor

Control Knob

Figure 2 - Vent-Free Gas Log Heater - Single Burner (Mountain Oak Logs Shown)

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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 ANS 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 (ANS Z21.60) product by opening flue damper.

VENT-FREE NATURAL GAS LOG HEATER

PRODUCT FEATURES

Continued

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.

Today’s 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.

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 fuelburning appliances.

PROVIDING ADEQUATE VENTILATION

The following are excerpts from National Fuel Gas Code, NFPA 54/ANS Z223.1, 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 4 through 6 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 (6 x 10 per pa-sec-m2) or less with openings gasketed or sealed

b. weather stripping has been

added on openable windows and doors

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

From Outdoors

If your home does not meet all of the three criteria above, proceed to

termining Fresh-Air Flow for Heater Location

and

Ventilation Air

, page 6.

, page 5.

and

-11

De-

Confined and Unconfined Space

The National Fuel Gas Code, ANS Z223.1 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.

This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air.

* Adjoining rooms are communicating only if there are doorless passageways or ventilation grills between them.

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OWNER’S MANUAL

AIR FOR COMBUSTION AND VENTILATION

Continued

DETERMINING FRESH-AIR FLOW FOR HEATER 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 heater 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:

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. Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.

____________(volume of space) ÷ 50 cu. ft. = (Maximum Btu/Hr the space can support)

Example:

3. Add the Btu/Hr of all fuel burning appliances in the space. Vent-free heater ______________ 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.

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:

The space in the above 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 adjoin-

ing room or add ventilation grills between rooms. See Ventilation Air From Inside Building, page 6.

B. Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 6. C. Install a lower Btu/Hr heater, 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.

Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) = 2560 cu. ft. (volume of space)

2560 cu. ft. (volume of space) ÷ 50 cu. ft. = 51.2 or 51,200 (maximum Btu/Hr the space can support)

Example:

Gas water heater 40,000 Btu/Hr Vent-free heater + 39,000 Btu/Hr Total = 79,000 Btu/Hr

51,200 Btu/Hr (maximum the space can support) 79,000 Btu/Hr (actual amount of Btu/Hr used)

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

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National Fuel Gas Code, ANS Z223.1, Section 5.3

For more information, visit www.desatech.com

or applicable local codes.

Continued

VENT-FREE NATURAL GAS LOG HEATER

AIR FOR COMBUSTION AND VENTILATION

Continued

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 permanent 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 3). You can also remove door into adjoining room (see option 3, Figure 3). Follow the National Fuel

Gas Code, NFPA 54/ANS Z223.1, Section

5.3, Air for Combustion and Ventilation for

required size of ventilation grills or ducts.

WARNING: Rework worksheet, adding the space of the adjoining unconfined space. The combined spaces must have enough fresh air to supply all appliances in both spaces.

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, NFPA 54/ANS Z223.1, Section 5.3, Air for Combustion and Ventilation for required size of ventilation

grills or ducts.

IMPORTANT:

inlet or outlet air into attic if attic has a thermostat-controlled power vent. Heated air entering the attic will activate the power vent.

Do not provide openings for

Ventilation

Grills

Into Adjoining

Room,

Option 1

Figure 3 - Ventilation Air from Inside Building

Outlet Air

Inlet Air

Figure 4 - Ventilation Air from Outdoors

Remove Door into Adjoining

Room, Option

12"

Outlet Air

Inlet Air

Ventilation Grills

Into Adjoining Room,

Option 2

Ventilated Attic

Ventilated

Crawl Space

12"

To Attic

Crawl

Space

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107123

OWNER’S MANUAL

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 for damage. If damaged, operate heater with flue damper closed.

WARNING: Never install the

heater

• in a bedroom or bathroom unless installed as a vented appliance (Variable ManuallyControlled Models Only) (see page 10)

• 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 tobacco smoke, aromatic candles, cleaning fluids, oil or kerosene lamps, etc) in the air exist, may discolor walls.

IMPORTANT:

ture 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 Com- bustion and Ventilation, pages 4 through 6.

Vent-free heaters add mois-

CHECK GAS TYPE

Use only natural gas. If your gas supply is not natural gas, do not install heater. Call dealer where you bought heater for proper type heater.

INSTALLATION AND CLEARANCES (Vent-Free Operation Only)

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

MINIMUM FIREPLACE CLEARANCE

TO COMBUSTIBLE MATERIALS

Log Size Side Wall Ceiling

18", 24", 30" 16" 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" 30" 17" 14" 34" 24"

*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.

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 heatresistant sealant. Do not seal chimney flue damper.

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Continued

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VENT-FREE NATURAL GAS LOG HEATER

INSTALLATION

Continued

Minimum Clearances For Side Combustible Material, Side Wall, and Ceiling

A. Clearances from the side of the fire-

place cabinet to any combustible material and wall should follow diagram in Figure 5.

Example:

shelf, 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 opening (see Figure 5).

Note:

into a manufactured firebox, follow firebox manufacturer’s 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.

The face of a mantel, book-

When installing your gas logs

Minimum Noncombustible Material Clearances

If Not Using Mantel

Note:

If using a mantel, proceed to If Using

Mantel. 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" and 30" models only). See Figure 6 for minimum clearances.

IMPORTANT:

minimum clearances, you must operate heater with chimney flue damper open. Go to Installing Damper Clamp Accessory for Vented Operation, page 10.

If you cannot meet these

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" and 30" models 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 6 and Figures 7 and 8 on page 9 for minimum clearances.

IMPORTANT:

minimum clearances, you must operate heater with chimney flue damper open. Go to Installing Damper Clamp Accessory for Vented Operation, page 10.

If you cannot meet these

Example

*Minimum 16 inches from Side Wall

Figure 5 - Minimum Clearance for Combustible to Wall

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 10.

Noncombustible Requirements for Material Distance (A) Safe Installation

12" or more Noncombustible material okay. Between 8" and 12" 24" or 30" Models: Install fireplace hood acces-

sory (GA6050, GA6052, or GA6053 see

ries,

page 27).

18" Model: Noncombustible material okay.

Less than 8" Noncombustible material must be extended to at

least 8". See cannot extend material, you must operate heater with flue damper open.

Heat Resistant Material

(A)

Between 8" and 12",

Accesso-

above. If you

Figure 6 - Heat Resistant Material (Slate, Marble, Tile, etc.) Above Fireplace

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107123

OWNER’S MANUAL

Hearth

5" Min.

Combustible Material

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 in Figure 7, 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 7).

Determining Minimum Mantel Clearance When Using a Hood

If minimum clearances in Figure 7 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 8 when using 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.

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 accept-

able height

• remove the mantel

Mantel Shelf

(A)

18" 20" 22" 24"

12" 8" 8" 14" 16

Distances to Underside of Mantel

/4" 20"

Underside of Mantel Shelf

Top of Fireplace Opening

Minimum NonCombustible Material

10" 8" 6"

Minimum NonCombustible Material Height

Figure 7 - Minimum Mantel Clearances Without Using Hood

8" Min.

Mantel Shelf

12" 15" 18"

Distances to Underside of Mantel

20"

Minimum NonCombustible Material

12" 10" 8" 6"

Hood

(GA6050, GA6052,

(GA6050, GA6052)

and GA6053)

Figure 8 - Minimum Mantel Clearances When Using Hood

All minimum distances are in inches

Log Set

24"/30" Models 18" Model

Underside of Mantel Shelf

All minimum distances are in inches

Log Set

18", 24", 30"

All Models

Models

Top of Fireplace Opening

FLOOR CLEARANCES

A. If installing appliance on the floor level,

you must maintain the minimum distance of 14" to combustibles (see Figure 9).

B. If combustible materials are less than

14" to the fireplace, you must install appliance at least 5" above the combustible flooring (see Figure 10).

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Combustible

14" Min.

Noncombustible Material

Material

Figure 9 - Minimum Fireplace Clearances If Installed at Floor Level

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Figure 10 - Minimum Fireplace Clearances Above Combustible Flooring

Continued

VENT-FREE NATURAL GAS LOG HEATER

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 clear-

ance 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

27). This will insure vented operation (see Figure 11). 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.

Figure 11 - Attaching Damper Clamp

Damper Clamp

Damper

Masonry Fireplace

Damper

Damper Clamp

Damper

Manufactured Fireplace

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

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107123

OWNER’S MANUAL

INSTALLATION

Continued

INSTALLING HEATER BASE ASSEMBLY

CAUTION: Do not remove the

metal data plates attached to the heater base assembly. The data plates contain important warranty 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 or log misplacement.

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. 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.

IMPORTANT:

ers 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.

Make sure the heater burn-

Installation Items Needed

• hardware package (provided with heater)

• approved flexible gas hose (not provided) (if allowed by local codes)

• sealant resistant to propane (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 12).

IMPORTANT:

wrench when connecting flexible gas hose.

2. Locate masonry screws in hardware

package.

3. Position heater base assembly in fire-

place.

4. Place logs in their proper position on heater

base, see Installing Logs on pages 14 through 17.

5. Center heater base and logs front-to-

back 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 13 or

14). 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 Figures 13 or 14).

Hold gas regulator with

Flexible Gas Hose (if allowed by local codes)

Fitting

Figure 12 - Attaching Flexible Gas Hose to Heater Gas Regulator

Figure 13 - Attaching Base Assembly to Fireplace Floor - Dual Burner Model

Figure 14 - Attaching Base Assembly to Fireplace Floor - Single Burner Model

Heater Gas Regulator

Masonry Screw

Mounting Bracket

Masonry Screw

Mounting Bracket

107123

Continued

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VENT-FREE NATURAL GAS LOG HEATER

INSTALLATION

Continued

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.

Installation Items Needed

Before installing heater, make sure you have the items listed below.

• piping (check local codes)

• sealant (resistant to propane/LP gas)

• equipment shutoff valve *

• test gauge connection *

• sediment trap

• tee joint

• pipe wrench * An CSA/AGA design-certified equip-

ment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional CSA/AGA design-certified equipment shutoff valve from your dealer. See Accessories, page 27.

WARNING: Never connect heater to private (non-utility) gas wells. This gas is commonly known as wellhead gas.

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 pressure will occur.

Installation must include an 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 15).

IMPORTANT:

Install equipment shutoff valve in an accessible location. The equipment valve is for turning on or shutting off the gas to the appliance.

Apply pipe joint sealant lightly to male

We recommend that you install a sediment trap in supply line as shown in Figure 15. 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. threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged heater valves.

CAUTION: Avoid damage to regulator. Hold gas regulator with wrench when connecting it to gas

CAUTION: Use pipe joint seal-

piping and/or fittings.

ant that is resistant to liquid petroleum (LP) gas.

CSA/AGA DesignCertified Equipment

From Gas Meter (5" W.C.** to

10.5" W.C. Pressure)

Tee Joint Pipe

Nipple Cap

Sediment Trap

Figure 15 - Gas Connection

Shutoff Valve With 1/8" NPT Tap*

3" Minimum

Approved Flexible Gas Hose (if allowed by local codes)

Gas Regulator

* Purchase the optional CSA/AGA design-certified equipment shutoff valve from your dealer. See Accessories, page 27.

** Minimum inlet pressure for purpose of input adjustment.

For more information, visit www.desatech.com

107123

OWNER’S MANUAL

POSITION

OFF

POSITION

INSTALLATION

Continued

CHECKING GAS CONNECTIONS

WARNING: Test all gas piping and connections for leaks after installing or servicing. Correct all leaks at once.

WARNING: Never use an open flame to check for a leak. Apply a mixture of liquid soap and water to all joints. Bubbles forming show a leak. Correct all leaks at once.

Pressure Testing Gas Supply Piping system

Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)

1. Disconnect appliance with its appliance main gas valve (control valve) and equipment shutoff valve from gas supply piping system. 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 using compressed air or opening main gas valve located on or near gas meter.

4. Check all joints of gas supply piping system. Apply mixture of liquid soap and water to gas 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 16).

2. Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter.

3. Check all joints from gas meter to equipment shutoff valve (see Figure

17). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.

4. Correct all leaks at once.

Equipment Shutoff Valve

Figure 16 - Equipment Shutoff Valve

Gas Meter

Figure 17 - Checking Gas Joints

Open

Closed

Pressure Testing Heater Gas Connections

1. Open equipment shutoff valve (see Figure 16).

2. Open main gas valve located on or near gas meter.

3. Make sure control knob of heater is in the OFF position.

4. Check all joints from equipment shutoff valve to control valve (see Figure 17). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.

5. Correct all leaks at once.

6. Light heater (see Operating Heater, pages 18 and 19 [manually-controlled models] or pages 19 and 20 [thermostatically-controlled models]). Check all other internal joints for leaks.

7. Turn off heater (see To Turn Off Gas to Appliance, page 19 [manually-controlled models] or page 20 [thermostatically-controlled models]).

Equipment Shutoff Valve

Thermostat Gas Valve or Control Valve Location

107123

Continued

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VENT-FREE NATURAL GAS LOG HEATER

INSTALLATION

Continued

INSTALLING LOGS

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.

Dual Burner Smoky Mountain Oak Models

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.

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. Place the base of the middle log (#2) in the U-shaped slots of the grate base in front of the back log. The cutout on the right of the middle log should fit over the burner (see Figure 19). 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.

3. Locate the recesses on the back of the front log (#3). Fit these recesses between the posts of the grate base (see Figure 20).

4. Locate the notches in the bottom of the crossover log (#4). Place the crossover log on top of the middle log and front log. Make sure the notches of the crossover log lines up with rectangular knobs on top of the middle and front logs (see Figure 21).

5. Place lava rock around base of heater. Do not put lava rock on logs on burner.

Back Log (#1)

Peg

Hole in Grate Base

Cutout

Burner

Figure 18 - Installing Back Log (#1)

Middle Log (#2)

Tab

Burner

“U” Bend

U-Shaped Slot

Figure 19 - Installing Middle Log (#2)

Front Log (#3)

Post

Recess

Post

Figure 20 - Installing Front Log (#3)

Notches

Crossover Log (#1)

Rectangular Knobs

Figure 21 - Installing Crossover Log (#4)

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107123

OWNER’S MANUAL

INSTALLATION

Continued

Dual Burner Premium Aged Split Oak Models

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.

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 22). 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 23).

3. Place crossover log (#3) onto the pin (right) on middle log (#1) and into the recess of the back log (#2). See Figure 24.

4. Locate the notches in the bottom of the front log (#4). Place the front log on the grate fingers. Make sure the notches of the front log line up with the grate fingers. See Figure 25.

5. With knot to right side, place smaller log piece (#5) over the pin on the left side of the middle log. The smaller log will rest on front log against the "knot" on the left. See Figure 26.

6. Place lava rock around base of heater. Do not put lava rock on logs on burner.

Back Log (#2)

Hole in Grate Base

Peg

Burner

Figure 23 - Installing Back Log (#2)

Crossover Log (#3)

Front Log (#4)

Notches

Grate Fingers

Figure 25 - Installing Front Log (#4)

Log Piece (#5)

Peg

Middle Log (#1)

Tab

Burner

“U” Bend

U-Shaped Slot

Figure 22 - Installing Middle Log (#1)

107123

Recess

Peg

Figure 24 - Installing Crossover Log (#3)

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Figure 26 - Installing Log Piece (#5)

Continued

VENT-FREE NATURAL GAS LOG HEATER

INSTALLATION

Continued

Dual Burner Biltmore Split Oak Models

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.

1. Place the front log (#1) on the grate fingers. Make sure the front log rests firmly between the grate fingers and the grate base (see Figure 27).

2. Place the base of the middle log (#2) 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 28). Make sure the front of the middle log is resting on the tabs of the grate base.

3. Locate pegs on the bottom of back log (#3). Slide these pegs into the holes in the grate base behind the burner (see Figure 29).

Front Log (#1)

4. Locate holes on the bottom of crossover log (#4). Slide front hole onto the left peg (CCL3924NT or CCL3930NTA) or middle peg (CCL3018NT) on the middle log (#2) and the peg on the back log (#3). See Figure 30 for placement.

Middle Log (#2)

Burner

Tab

Figure 28 - Installing Middle Log (#2) (CCL3930NTA Shown)

Figure 29 - Installing Rear Log (#3) (CCL3930NTA Shown)

Log #4

Pegs

Log #2

U-Shaped Slot

Pegs

Hole in Grate Base

Burner

Log #3

5. For CCL3924NT and CCL3930NTA

Only: Locate peg and hole on the bot-

tom of crossover log (#5). Slide the peg into the hole located in crossover log (#4). Slide the hole onto the peg on front log (#1). See Figure 31.

For CCL3018NT Only: Locate holes on

the bottom of crossover log (#5). Slide the holes over the left pegs on middle log (#2) and front log (#1). See Figure

Crossover Log (#4)

Front Log (#1)

Figure 31 - Installing Crossover Log (#5) (CCL3930NTA Shown)

Crossover Log (#4)

Front Log (#1)

Figure 32 - Installing Crossover Log (#5) (CCL3018NT Only)

Grate Fingers

Grate Base

Figure 27 - Installing Front Log (#1) (CCL3930NTA Shown)

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Figure 30 - Installing Crossover Log (#4) (CCL3930NTA Shown)

107123

OWNER’S MANUAL

INSTALLATION

Continued

32.

6. Locate holes on the bottom of crossover log (#6). Slide these holes onto the right pegs located in middle log (#2) and front log (#1). See Figure 33.

7. For CCL3930NTA only: Locate holes on the bottom of crossover log (#7). Slide onto the pegs located in crossover log (#6) and middle log (#2). See Figure 34.

8. Add lava rock around base of heater. Do not place any lava rock on logs or burner.

Figure 33 - Installing Crossover Log (#6) (CCL3930NTA Shown)

Holes

Pegs

Log #2

Front Log (#1)

Single Burner Mountain Oak Models

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.

1. Place the back log (#1) onto the back of the burner. Make sure the log sits down into the hole in the grate and leans forward onto the two posts in front of the log (see Figure 35).

2. Locate the notches on the underside of the front log (#2). Also notice the recesses on the back of log #2. Slide the notches over the tabs on the grate base and the front posts into the recesses on the back (see Figure 36).

3. Place the crossover log (#3) on top of the back log and front log. Make sure the crossover log is seated into the notches on top of the back and front logs (see Figure 37).

4. Add lava rock around base of heater. Do not put lava rock on logs or burner.

Front Log (#2)

Notch

Tabs on Grate Base

Figure 36 - Installing Front Log

Crossover Log (#3)

Post

Recess

Notch

Crossover Log (#6)

Middle

Pegs

Figure 34 - Installing Crossover Log (#7) to Model CCL3930NTA Only

107123

Log (#2)

Back Log (#1)

Hole in Grate

Figure 35 - Installing Back Log

Notch

Figure 37 - Installing Crossover Log

Post

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VENT-FREE NATURAL GAS LOG HEATER

OPERATING HEATER

Manually-Controlled Models

FOR YOUR SAFETY

READ BEFORE

LIGHTING

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 y our gas supplier from a neighbor’s phone. Follow the gas supplier’s 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. Ne ver use tools. If the knob will not push in or turn by hand, don’t 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.

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. Also if fireplace opening has vents at the bottom, you must open the vents before operating heater.

• 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, column 1.

2. Make sure equipment shutoff valve is fully open.

3. Press in and turn control knob clockwise

to the OFF position.

Clockwise

4. Wait f ive (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 above. If you don’t smell gas, go to the next step.

5. Slightly depress and turn control knob counterclockwise

C-clockwise

to the PILOT position. Press in control knob for five (5) seconds (see Figure 38).

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. 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 repair s are made, light pilot with match. T o light pilot with match, see Manual Light- ing Procedure, page 19.

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 counterclockwise

C-clockwise

to desired heating level. The burner(s) should light. Set control knob to any heat level between HI and LO.

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

Ignitor Electrode

Thermocouple

Pilot Burner

Figure 38 - Control Knob and Ignitor Button Location

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Ignitor Button

PILOT

OFF

Control Knob

Figure 39 - Pilot

107123

OWNER’S MANUAL

OPERATING HEATER

Continued

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 manual shutoff valve.

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Heater

1. Press in and turn control knob clockwise

2. Tur n control knob clockwise to the pilot position.

3. Press in control knob and turn clockwise

Shutting Off Burner(s) Only (pilot stays lit)

1. Tur n control knob clockwise to the HIGH position.

2. Press in and turn control knob clockwise

MANUAL LIGHTING

PROCEDURE

1. Follow steps 1 through 5 under Lighting Instructions, page 18.

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 on page 18.

to the HIGH position.

Clockwise

to the OFF position.

Clockwise

to the pilot position.

Clockwise

Thermostatically-Controlled Models

FOR YOUR SAFETY

READ BEFORE

LIGHTING

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 y our gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

• If you cannot reach your gas supplier, call the fire department.

C. Use only your hand to push in or turn

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.

LIGHTING

INSTRUCTIONS

WARNING

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

Note:

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

1. STOP! Read the safety information, column 2.

2. Make sure equipment shutoff valve is fully open.

3. Tur n control knob clockwise to the OFF position.

Clockwise

Continued

107123

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VENT-FREE NATURAL GAS LOG HEATER

OPERATING HEATER

Continued

5. T urn contr ol knob counterclockwise

C-clockwise

to the PILOT position. Press in control knob for f ive (5) seconds (see Figure 40).

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 less. This will allo w 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 ar e made, light pilot with match. T o light pilot with match, see Manual Light- ing Procedure.

OFF

Pilot

Ignitor Button

Figure 40 - Control Knob and Ignitor Button Location

Ignitor Electrode

Thermocouple

Figure 41 - Pilot

Control Knob

Pilot Burner

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. W ait one (1) minute for system to reset before lighting pilot again.

8. T urn contr ol knob counterclockwise to desired heating level. The

C-clockwise

burners should light. Set control knob to any heat level between HI and LO.

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

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Heater

1. Tur n control knob clockwise to the OFF position.

Clockwise

Shutting Off Burners Only (pilot stays lit)

1. Tur n control knob clockwise to the PILOT position.

Clockwise

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 burners to remain fully on, without modulating down in most cases.

MANUAL LIGHTING

PROCEDURE

1. Follow steps 1 through 5 under Lighting Instructions, pages 19 and 20.

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.

INSPECTING BURNERS

Check pilot flame pattern and burner flame patterns often.

PILOT FLAME PATTERN

Figure 42 shows a correct pilot flame pattern. Figure 43 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.

If pilot flame pattern is incorrect, as shown in Figure 43

• turn heater off (see To Turn Off Gas to

Appliance, page 19 [manually-controlled models] or page 20 [thermostat-controlled models])

• see Troubleshooting, pages 22 through 24

Thermocouple

Figure 42 - Correct Pilot Flame Pattern

Thermocouple

Pilot Burner

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Figure 43 - Incorrect Pilot Flame Pattern

107123

OWNER’S MANUAL

INSPECTING BURNERS

Continued

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, Either remove blockage or replace burner. Blocked burner flame holes will create soot.

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.

CLEANING 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, lint, and pet hair. 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 don't 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 44).

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 45). 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.

Burner Tube

Primary Air Inlet Holes

Figure 44 - Injector Holder On Outlet Burner Tube

Burner Tube

Pilot Assembly Pilot Air

Inlet Hole

Figure 45 - Pilot Inlet Air Hole

Injector Holder

Ports/Slots

LOGS

• If you remove logs for cleaning, refer to Installing Logs, pages 14 through 17, to properly replace logs.

• Replace log(s) if broken or chipped (dime-sized or larger).

MAIN BURNER

107123

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VENT-FREE NATURAL GAS LOG HEATER

TROUBLESHOOTING

Note:

For additional help, visit DESA

International’s technical service web site at www.desatech.com.

Note:

All troubleshooting items are listed in

order of operation.

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

WARNING: Turn off and unplug heater and let cool before servicing. Only a qualified service person should service and repair heater.

POSSIBLE CAUSE

1. Ignitor electrode not connected 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 equipment 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 installed

5. ODS/pilot is clogged

6. Gas regulator setting is not correct

CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/ pilot unit.

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 ignitor to base panel of log set. Nut is located behind base panel

4. Replace ignitor cable

5. Replace piezo ignitor

6. Replace piezo ignitor

7. Replace piezo ignitor

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. Clean ODS/pilot (see Cleaning and Maintenance, page 21) or replace ODS/ pilot assembly

6. Replace gas regulator

ODS/pilot lights but flame goes out when control knob is released

For more information, visit www.desatech.com

1. Control knob not fully pressed in

2. Control knob not pressed in long enough

3. Equipment shutoff valve not fully open

4. Pilot flame not touching thermocouple,

5. Thermocouple connection loose at con-

6. Thermocouple damaged

7. Control valve damaged

which allows thermocouple 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

trol valve

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1. Press in control knob fully

2. After ODS/pilot lights, keep control knob pressed in 30 seconds

3. Fully open equipment shutoff valve

4. A) Contact local natural gas company

B) Clean ODS/pilot (see Cleaning and Maintenance, page 21) or replace ODS/ pilot assembly

5. Hand tighten until snug, then tighten 1/4 turn more

6. Replace thermocouple

7. Replace control valve

107123

TROUBLESHOOTING

Continued

OWNER’S MANUAL

OBSERVED PROBLEM

Burner does light after ODS/pilot is lit

Delayed ignition burner

Burner backfiring during combustion

Slight smoke or odor during initial operation

Moisture/condensation noticed on windows

Heater produces a whistling noise when burner is lit

POSSIBLE CAUSE

1. Burner orifice clogged

2. Inlet gas pressure is too low

3. Burner orifice diameter is too small

1. Manifold pressure is too low

2. Burner orifice clogged

1. Burner orifice is clogged or damaged

2. Damaged burner

3. Gas regulator defective

1. Not enough air

2. Gas regulator defective

3. Residues from manufacturing processes and logs curing

1. Not enough combustion/ventilation 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

REMEDY

1. Clean burner (see Cleaning and Maintenance, page 21) or replace burner orifice

2. Contact local natural gas company

3. Replace burner orifice

1. Contact local natural gas company

2. Clean burner (see Cleaning and Mainte- nance, page 21) or replace burner orifice

1. Clean burner (see Cleaning and Mainte- nance, page 21) or replace burner orifice

2. Replace damaged burner

3. Replace gas regulator

1. Check burner for dirt and debris. If found, clean burner (see Cleaning and Maintenance, page 21)

2. Replace gas regulator

3. Problem will stop after a few hours of operation

1. Refer to Air for Combustion and Venti- lation requirements (page 4)

1. Turn control knob to LO position and let warm up for a minute

2. Operate burner until air is removed from line. Have gas line checked by local natural gas company

3. Observe minimum installation clearances (see pages 7 through 9)

4. Clean burner (see Cleaning and Mainte- nance, page 21) or replace burner orifice

White powder residue forming within burner box or on adjacent walls or furniture

107123

1. When heated, vapors from furniture polish, wax, carpet cleaners, etc. turn into white powder residue

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For more information, visit www.desatech.com

1. Turn heater off when using furniture polish, wax, carpet cleaners, or similar products

Continued

VENT-FREE NATURAL GAS LOG HEATER

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.

IMPORTANT:

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.

Operating heater where impurities in air exist may create odors. Cleaning

OBSERVED PROBLEM

Heater produces a clicking/ticking noise just after burner is lit or shut off

Heater produces unwanted odors

Heater shuts off in use (ODS operates)

Gas odor even when control knob is in OFF position

POSSIBLE CAUSE

1. Metal expanding while heating or contracting while cooling

1. Heater burning vapors from paint, hair spray, glues, cleaners, chemicals, new carpet, etc. (See ment above)

2. Gas leak. See Warning statement at

top of page

1. Not enough fresh air is available

2. Low line pressure

3. ODS/pilot is partially clogged

1. Gas leak. See Warning statement at

top of page

2. Control valve defective

IMPORTANT

state-

REMEDY

1. This is common with most heaters. If noise is excessive, contact qualified service person

1. Open window and ventilate room. Stop using odor causing products while heater is running

2. Locate and correct all leaks (see Check- ing Gas Connections, page 13)

1. Open window and/or door for ventilation

2. Contact local natural gas company

3. Clean ODS/pilot (see Cleaning and Maintenance, page 21)

1. Locate and correct all leaks (see Check- ing Gas Connections, page 13)

2. Replace control valve

Gas odor during combustion

Logs set cycles to pilot, but room temperature drops to a lower than ideal level before log set comes back on

For more information, visit www.desatech.com

1. Foreign matter between control valve

2. Gas leak. See Warning statement at

1. Thermostat sensing bulb needs to be re-

and burner

top of page

positioned

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1. Take apart gas tubing and remove foreign matter

2. Locate and correct all leaks (see Check- ing Gas Connections, page 13)

1. Reposition thermostat sensing bulb (see

instructions for Optional Positioning of Thermostat Sensing Bulb, page 25

107123

OWNER’S MANUAL

OPTIONAL POSITIONING OF THERMOSTAT SENSING BULB

For Masonry and Factorybuilt Metal Fireplace

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 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 46).

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 48).

Note:

Do not remove the screw . Make sure you tighten the screw after removing the thermostat sensing bulb.

IMPORTANT:

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 sensing bulb until step 5. If you have a masonry fireplace, see Figure 49 for location. If you have a factory-built metal fireplace, see Figure 50 for location. If your fireplace has glass doors, position sensing bulb directly behind door gap on right bottom side (see Figure 51).

Do not force or bend the

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 52). Slide the thermostat sensing bulb into the clip.

IMPORTANT:

Gas Valve Assembly

Mounting Bracket

Figure 46 - Location of Gas Valve Assembly and Thermostat Sensing Bulb

Figure 47 - Adhesive-backed Mounting Clip

Capillary

Retaining Clamp

Do not crimp capillary .

Thermostat Sensing Bulb

Thermostat Screw

Thermostat Sensing Bulb

Adhesivebacked Mounting Clip

Figure 49 - Locating Thermostat Sensing Bulb on Masonry Fireplace

Thermostat Sensing Bulb

Adhesivebacked Mounting Clip

Figure 50 - Locating Thermostat Sensing Bulb on Factory-built Metal Fireplace

Thermostat Sensing Bulb

Adhesivebacked Mounting Clip

Glass Doors

Figure 51 - Installing Thermostat Sensing Bulb behind Glass Doors

Thermostat Sensing Bulb

Adhesivebacked Mounting

Capillary

Clip

Do Not Crimp Capillary

107123

Figure 48 - Removing Thermostat Sensing Bulb

For more information, visit www.desatech.com

Figure 52 - Positioning the Thermostat Sensing Bulb in the Vertical Position with the Capillary at the Bottom

VENT-FREE NATURAL GAS LOG HEATER

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 can’t supply original replacement part(s), contact your nearest Parts Central (see page

26) or call DESA International’s Technical Service Department at 1-800-DESA LOG (1-800-337-2564) for referral information.

When calling DESA International, 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 defec-

tive part to the factory.

PARTS NOT UNDER WARRANTY

Contact authorized dealers of this product. If they can’t supply original replacement part(s), contact your nearest Parts Central (see page 27) or call DESA International’s Parts Department at 1-800-972-7879 for referral information.

When calling DESA International, 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

When Gas Quality Is Bad

• pilot will not stay lit

• burners will produce flames and soot

• heater will backfire when lit You may feel your gas pressure is too low or

gas quality is bad. If so, contact your local natural gas supplier.

SPECIFICATIONS

DUAL BURNER SMOKY MOUNTAIN OAK AND PREMIUM AGED SPLIT OAK MODELS

18" Model 24" Models 30" Models

Btu (Variable) 16,000/30,000 20,000/39,000 20,000/39,0000 Type Gas Natural Gas Only Natural Gas Only Natural Gas Only Ignition Piezo Piezo Piezo Manifold Pressure 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" Minimum* 5" 5" 5"

Shipping Weight 36 lbs. 38 lbs. 40 lbs. * For the purpose of input adjustment

DUAL BURNER BILTMORE SPLIT OAK MODELS

18" Model 24" Models 30" Models

Btu (Variable) 16,000/30,000 20,000/39,000 20,000/39,000 Type Gas Natural Gas Only Natural Gas Only Natural Gas Only Ignition Piezo Piezo Piezo Manifold Pressure 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"

Minimum* 5" 5" 5" Shipping Weight 61 lbs. 66 lbs. 70 lbs. * For the purpose of input adjustment

SINGLE BURNER MOUNTAIN OAK MODELS

18" Model 24" Model

Btu (Variable) 16,000/27,000 16,000/31,500 Type Gas Natural Gas Only Natural Gas Only Ignition Piezo Piezo Manifold Pressure 3.5" W.C. 3.5" W.C. Inlet Gas

Pressure (in. of water)

Maximum 10.5" 10.5"

Minimum* 5" 5" Shipping Weight 38 lbs. 40 lbs. * For the purpose of input adjustment

For more information, visit www.desatech.com

107123

OWNER’S MANUAL

TECHNICAL SERVICE

You may have further questions about installation, operation, or troubleshooting. If so, contact DESA International’s Technical Service Department at 1-800-DESA LOG (1-800-337-2564).

You can also visit DESA International’s technical services web site at

www.desatech.com.

ACCESSORIES

Purchase these fireplace accessories from your local dealer. If they can not supply these accessories, call DESA International’s Sales Department at 1-800-972-7879 for referral information. You can also write to the address listed on the back page of this manual.

EQUIPMENT SHUTOFF VALVE GA5010

For all models. Equipment shutoff valve with 1/8" NPT tap. Fits 1/2" NPT pipe.

FIREPLACE HOOD

Black - GA6050 Brass - GA6052 Antique Brass - GA6053

For all models. Helps deflect heat away from mantel or wall above fireplace.

DAMPER CLAMP - GA6080 (Not Shown)

Permanently opens chimney flue damper for vented operation. For use only with nonthermostat accessories.

LAVA ROCK - GA6060 (Not Shown)

For all models. Order when additional rock is desired. (2 lb. bag)

PARTS CENTRAL

These Parts Centrals are privately owned businesses. They have agreed to support our customer’s needs by providing original replacement parts and accessories.

Baltimore Electric

1348 Dixwell Avenue 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 1-800-362-6951 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

Dayton Hardware

P.O. Box 275 North Dayton Station Dayton, OH 45404-0275 All States 937-258-3721 OH 1-800-762-3426

Halco Enterprises

208 Carter Drive, Unit 21 West Chester, PA 19382-4500 610-430-7717 1-800-368-0803 www.halcoenterprises.com

Laportes Parts & Service

2444 N. 5th Street Hartsville, SC 29550-7704 803-332-0191 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

107123

For more information, visit www.desatech.com

VENT-FREE NATURAL GAS LOG HEATER

ILLUSTRATED PARTS BREAKDOWN

Variable Manually-Controlled Smoky Mountain Oak Models

CGD3018N CGD3924N CGD3930N

For more information, visit www.desatech.com

107123

OWNER’S MANUAL

PARTS LIST

Variable Manually-Controlled Smoky Mountain Oak Models

CGD3018N CGD3924N CGD3930N

KEY CGD3018N CGD3924N CGD3930N NO. PART NUMBER PART NUMBER PART NUMBER DESCRIPTION QTY.

1 103008-02 103008-01 103008-03 Back Log (#1) 1 2 103009-02 103009-01 103009-03 Middle Log (#2) 1 3 103010-02 103010-01 103010-03 Front Log (#3) 1 4 103011-02 103011-01 103011-01 Crossover Log (#4) 1 5 102775-04CK 102775-01CK 102775-03CK Painted Base Assembly 1 6 102844-02 102844-01 102844-01 Lower Bracket 1 7 102966-02 102966-01 102966-01 Upper Bracket 1 8 098867-14 098867-14 098867-14 Gas Regulator 1 9 102798-01 102798-01 102798-01 Inlet Tube 1 10 102779-03 102779-01 102779-01 Outlet Burner Tube 1 11 099056-26 099056-16 099056-16 Burner Orifice Injector 1 12 102843-01 102843-01 102843-01 Burner Clip 1 13 102980-01 102772-01 102772-01 Burner 1 14 102568-07 102568-05 102568-05 Control Valve 1 15 098508-01 098508-01 098508-01 Valve Retainer Nut 1 16 098354-01 098354-01 098354-01 Control Knob 1 17 102445-01 102445-01 102445-01 Piezo Ignitor 1 18 099387-08 099387-08 099387-08 Pilot Tube 1 19 098271-07 098271-07 098271-07 Ignitor Cable 1 20 104285-01 104285-01 104285-01 ODS Pilot 1 21 M11084-38 M11084-38 M11084-38 Hex Screw, #8-18 x .38 11 22 098276-01 098276-01 098276-01 Hex Head Plug, 1/8 NPT 1 23 098249-01 098249-01 098249-01 Nut, M5 2

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual.

107123

PARTS AVAILABLE — NOT SHOWN

100563-01 100563-01 100563-01 Warning Plate 1 101055-02 101055-02 101055-02 Lighting Instructions Plate 1 100565-01 100565-01 100565-01 Warning Plate Fastener 1 100639-01 100639-01 100639-01 Caution Decal 1 101449-04 101449-04 101449-04 Control Position Decal 1 101137-02 101137-02 101137-02 Hardware Kit 1 104310-02 104310-02 104310-02 Information Video 1 GA6060 GA6060 GA6060 Lava Rock 1

For more information, visit www.desatech.com

VENT-FREE NATURAL GAS LOG HEATER

ILLUSTRATED PARTS BREAKDOWN

Thermostatically-Controlled Premium Aged Split Oak Models

CGB3924NT CGB3930NT

For more information, visit www.desatech.com

107123

OWNER’S MANUAL

PARTS LIST

Thermostatically-Controlled Premium Aged Split Oak Models

CGB3924NT CGB3930NT

KEY CGB3924NT CGB3930NT NO. PART NUMBER PART NUMBER DESCRIPTION QTY.

1 104897-01 104897-02 Middle Log (#1) 1 2 104898-01 104898-02 Back Log (#2) 1 3 104899-01 104899-02 Crossover Log (#3) 1 4 104896-01 104896-02 Front Log (#4) 1 5 104900-01 104900-02 Log Piece (#5) 1 6 102844-01 102844-01 Lower Bracket 1 7 102966-01 102966-01 Upper Bracket 1 8 098867-14 098867-14 Gas Regulator 1 9 102981-01 102981-01 Inlet Tube 1 10 102983-01 102983-01 Outlet Burner Tube 1 11 099056-16 099056-16 Burner Orifice Injector 1 12 102843-01 102843-01 Burner Clip 1 13 102772-01 102772-01 Burner 1 14 101329-20 101329-20 Thermostat Gas Valve Assembly 1 15 102979-01 102979-01 Thermostat Bracket 1 16 098544-01 098544-01 Thermobulb Clip 1 17 102445-01 102445-01 Piezo Ignitor 1 18 099387-09 099387-09 Pilot Tube 1 19 098271-07 098271-07 Ignitor Cable 1 20 104285-01 104285-01 ODS Pilot 1 21 M11084-38 M11084-38 Hex Screw, #8-18 x .38 15 22 098249-01 098249-01 Nut, M5 2 23 099211-01 099211-01 Hex Screw, 10-16 x 2.50 2 24 102775-05CK 102775-07CK Painted Base Assembly 1

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual.

107123

PARTS AVAILABLE — NOT SHOWN

100563-01 100563-01 Warning Plate 1 101054-01 101054-01 Lighting Instructions Plate 1 100565-01 100565-01 Warning Plate Fastener 1 100639-01 100639-01 Caution Decal 1 101137-02 101137-02 Hardware Kit 1 104310-02 104310-02 Information Video 1 GA6060 GA6060 Lava Rock 1

For more information, visit www.desatech.com

VENT-FREE NATURAL GAS LOG HEATER

ILLUSTRATED PARTS BREAKDOWN

Thermostatically-Controlled Smoky Mountain Oak Models

CGD3018NT CGD3924NT CGD3930NT

For more information, visit www.desatech.com

107123

OWNER’S MANUAL

PARTS LIST

Thermostatically-Controlled Smoky Mountain Oak Models

CGD3018NT CGD3924NT CGD3930NT

KEY CGD3018NT CGD3924NT CGD3930NT NO. PART NUMBER PART NUMBER PART NUMBER DESCRIPTION QTY.

1 103008-02 103008-01 103008-03 Back Log (#1) 1 2 103009-02 103009-01 103009-03 Middle Log (#2) 1 3 103010-02 103010-01 103010-03 Front Log (#3) 1 4 103011-02 103011-01 103011-01 Crossover Log (#4) 1 5 102775-09CK 102775-05CK 102775-07CK Painted Base Assembly 1 6 102844-02 102844-01 102844-01 Lower Bracket 1 7 102966-02 102966-01 102966-01 Upper Bracket 1 8 098867-14 098867-14 098867-14 Gas Regulator 1 9 102981-01 102981-01 102981-01 Inlet Tube 1 10 102983-03 102983-01 102983-01 Outlet Burner Tube 1 11 099056-26 099056-16 099056-16 Burner Orifice Injector 1 12 102843-01 102843-01 102843-01 Burner Clip 1 13 102980-01 102772-01 102772-01 Burner 1 14 101329-21 101329-20 101329-20 Thermostat Gas Valve Assembly 1 15 102979-02 102979-01 102979-01 Thermostat Bracket 1 16 098544-01 098544-01 098544-01 Thermobulb Clip 1 17 102445-01 102445-01 102445-01 Piezo Ignitor 1 18 099387-09 099387-09 099387-09 Pilot Tube 1 19 098271-07 098271-07 098271-07 Ignitor Cable 1 20 104285-01 104285-01 104285-01 ODS Pilot 1 21 M11084-38 M11084-38 M11084-38 Hex Screw, #8-18 x .38 15 22 098249-01 098249-01 098249-01 Nut, M5 2 23 099211-01 099211-01 099211-01 Hex Screw, 10-16 x 2.50 2

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual.

107123

PARTS AVAILABLE — NOT SHOWN

100563-01 100563-01 100563-01 Warning Plate 1 101054-01 101054-01 101054-01 Lighting Instructions Plate 1 100565-01 100565-01 100565-01 Warning Plate Fastener 1 100639-01 100639-01 100639-01 Caution Decal 1 101137-02 101137-02 101137-02 Hardware Kit 1 104310-02 104310-02 104310-02 Information Video 1 GA6060 GA6060 GA6060 Lava Rock 1

For more information, visit www.desatech.com

VENT-FREE NATURAL GAS LOG HEATER

ILLUSTRATED PARTS BREAKDOWN

Thermostatically-Controlled Biltmore Split Oak Model

CCL3018NT

For more information, visit www.desatech.com

107123

OWNER’S MANUAL

PARTS LIST

Thermostatically-Controlled Biltmore Split Oak Model

CCL3018NT

KEY CCL3018NT NO. PART NUMBER DESCRIPTION QTY.

1 105923-04 Front Log (#1) 1 2 105924-04 Middle Log (#2) 1 3 105925-04 Back Log (#3) 1 4 105926-04 Left Back Crossover Log (#4) 1 5 105927-04 Left Top Crossover Log (#5) 1 6 105928-04 Right Bottom Crossover Log (#6) 1 7 102775-09CK Painted Base Assembly 1 8 102844-02 Lower Bracket 1 9 102966-02 Upper Bracket 1 10 098867-14 Gas Regulator 1 11 102981-01 Inlet Tube 1 12 102983-03 Outlet Burner Tube 1 13 099056-26 Burner Orifice Injector 1 14 102843-01 Burner Clip 1 15 102980-01 Burner 1 16 101329-21 Thermostat Gas Valve Assembly 1 17 102979-02 Thermostat Bracket 1 18 098544-01 Thermostat Clip 1 19 102445-01 Piezo Ignitor 1 20 099387-09 Pilot Tube 1 21 098271-07 Ignitor Cable 1 22 104285-01 ODS Pilot 1 23 M11084-38 Hex Screw, #8-18 x .38 15 24 098249-01 Nut, M5 2 25 099211-01 Hex Screw, 10-16 x 2.50 2

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual.

107123

PARTS AVAILABLE — NOT SHOWN

100563-01 Warning Plate 1 101054-01 Lighting Instructions Plate 1 100565-01 Warning Plate Fastener 1 100639-01 Caution Decal 1 101137-02 Hardware Kit 1 107073-02 Information Video 1 GA6060 Lava Rock 1

For more information, visit www.desatech.com

VENT-FREE NATURAL GAS LOG HEATER

ILLUSTRATED PARTS BREAKDOWN

Thermostatically-Controlled Biltmore Split Oak Model

CCL3924NT

For more information, visit www.desatech.com

107123

OWNER’S MANUAL

PARTS LIST

Thermostatically-Controlled Biltmore Split Oak Model

CCL3924NT

KEY CCL3924NT NO. PART NUMBER DESCRIPTION QTY.

1 105923-03 Front Log (#1) 1 2 105924-03 Middle Log (#2) 1 3 105925-03 Back Log (#3) 1 4 105926-03 Left Back Crossover Log (#4) 1 5 105927-03 Left Top Crossover Log (#5) 1 6 105928-04 Right Bottom Crossover Log (#6) 1 7 102775-05CK Painted Base Assembly 1 8 102844-01 Lower Bracket 1 9 102966-01 Upper Bracket 1 10 098867-14 Gas Regulator 1 11 102981-01 Inlet Tube 1 12 102983-01 Outlet Burner Tube 1 13 099056-16 Burner Orifice Injector 1 14 102843-01 Burner Clip 1 15 102772-01 Burner 1 16 101329-20 Thermostat Gas Valve Assembly 1 17 102979-01 Thermostat Bracket 1 18 098544-01 Thermostat Clip 1 19 102445-01 Piezo Ignitor 1 20 099387-09 Pilot Tube 1 21 098271-07 Ignitor Cable 1 22 104285-01 ODS Pilot 1 23 M11084-38 Hex Screw, #8-18 x .38 15 24 098249-01 Nut, M5 2 25 099211-01 Hex Screw, 10-16 x 2.50 2

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual.

107123

PARTS AVAILABLE — NOT SHOWN

For more information, visit www.desatech.com

VENT-FREE NATURAL GAS LOG HEATER

ILLUSTRATED PARTS BREAKDOWN

Thermostatically-Controlled Biltmore Split Oak Model

CCL3930NTA

For more information, visit www.desatech.com

107123

OWNER’S MANUAL

PARTS LIST

Thermostatically-Controlled Biltmore Split Oak Model

CCL3930NTA

KEY CCL3930NTA NO. PART NUMBER DESCRIPTION QTY.

1 105923-02 Front Log (#1) 1 2 105924-02 Middle Log (#2) 1 3 105925-02 Back Log (#3) 1 4 105926-02 Left Back Crossover Log (#4) 1 5 105927-03 Left Top Crossover Log (#5) 1 6 105928-02 Right Bottom Crossover Log (#6) 1 7 105929-02 Right Top Crossover Log (#7) 1 8 102844-01 Lower Bracket 1 9 102966-01 Upper Bracket 1 10 098867-14 Gas Regulator 1 11 102981-01 Inlet Tube 1 12 102983-01 Outlet Burner Tube 1 13 099056-16 Burner Orifice Injector 1 14 102843-01 Burner Clip 1 15 102772-01 Burner 1 16 101329-20 Thermostat Gas Valve Assembly 1 17 102979-01 Thermostat Bracket 1 18 098544-01 Thermostat Clip 1 19 102445-01 Piezo Ignitor 1 20 099387-09 Pilot Tube 1 21 098271-07 Ignitor Cable 1 22 104285-01 ODS Pilot 1 23 M11084-38 Hex Screw, #8-18 x .38 15 24 098249-01 Nut, M5 2 25 099211-01 Hex Screw, 10-16 x 2.50 2 26 102775-07CK Painted Base Assembly 1

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual.

107123

PARTS AVAILABLE — NOT SHOWN

Mounting Clip 1

For more information, visit www.desatech.com

VENT-FREE NATURAL GAS LOG HEATER

ILLUSTRATED PARTS BREAKDOWN

Variable Manually-Controlled Mountain Oak Models

CY2718N CY3124N

For more information, visit www.desatech.com

107123

OWNER’S MANUAL

PARTS LIST

Variable Manually-Controlled Mountain Oak Models

CY2718N CY3124N

KEY CY2718N CY3124N NO. PART NUMBER PART NUMBER DESCRIPTION QTY.

1 103729-04 103729-03 Back Log (#1) 1 2 103730-04 103730-03 Front Log (#2) 1 3 103731-04 103731-03 Crossover Log (#3) 1 4 102775-02CK 102775-01CK Painted Base Assembly 1 5 102844-01 102844-01 Lower Bracket 1 6 102966-01 102966-01 Upper Bracket 1 7 098867-14 098867-14 Gas Regulator 1 8 102780-01 102780-01 Outlet Burner Tube 1 9 102798-01 102798-01 Inlet Tube 1 10 099056-20 099056-18 Burner Orifice Injector 1 11 102843-01 102843-01 Burner Clip 1 12 102963-01 102773-01 Burner 1 13 102568-07 102568-07 Control Valve 1 14 098508-01 098508-01 Valve Retainer Nut 1 15 098354-01 098354-01 Control Knob 1 16 102445-01 102445-01 Piezo Ignitor 1 17 098249-01 098249-01 Nut, M5 2 18 099387-08 099387-08 Pilot Tube 1 19 098271-07 098271-07 Ignitor Cable 1 20 104285-01 104285-01 ODS Pilot 1 21 M11084-38 M11084-38 Screw, Hex Head (#8-18 x .38) 11 22 098276-01 098276-01 Hex Head Plug, 1/8" NPT 1

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual.

107123

PARTS AVAILABLE — NOT SHOWN

100563-01 100563-01 Warning Plate 1 101055-02 101055-02 Lighting Instructions Plate 1 100565-01 100565-01 Warning Plate Fastener 1 100639-01 100639-01 Caution Decal 1 101449-04 101449-04 Control Position Decal 1 101137-02 101137-02 Hardware Kit 1 104310-02 104310-02 Information Video 1 GA6060 GA6060 Lava Rock 1

For more information, visit 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

COMFORT GLOW VENT-FREE NATURAL GAS LOG HEATERS

DESA International 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 Authorized Service Center. Warranty part(s) MUST be obtained through authorized dealers of this product and/or DESA International 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 INTERNATIONAL’S LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND DESA INTERNATIONAL 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:

INTERNATIONAL

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

www.desatech.com

107123 01

NOT A UPC

107123-01 Rev. C 08/00

Desa CGD3924NT, CGD3930NT, CGD3018NT, CGB3924NT, CGB3930NT User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual