Desa Water Heater CGD3018N User Manual

YELLOW FLAME DESIGN

UNVENTED (VENT-FREE)

NATURAL GAS LOG HEATER

(Manually-Controlled Models Also Designed Certified as Vented Decorative Appliance)

This appliance may be installed in an aftermarket* manufactured (mobile) home, where

not prohibited by state or local codes. This appliance is only for use with the type of gas

indicated on the rating plate. This appliance is not convertible for use with other gases.

* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer

OWNER’S OPERATION AND INSTALLATION MANUAL

18", 24", and

30" Variable

Manually-

Controlled

Models

24"

Thermostatically-

Controlled Model

CGD3924NT

CGD3018N

CGD3924N

CGD3930N

WARNING:Improperinstallation,adjust-

ment,alteration,service,ormaintenance

can cause injury or property damage.

Refer to this manual for correct installa-

tion and operational procedures. For

assistance or additional information

consult a qualified installer, service

agency, or the gas supplier.

WARNING: If the information in this

manual is not followed exactly, a fire or

explosion may result causing property

damage, personal injury, or loss of life.

— Do not store or use gasoline or other

flammable vapors and liquids in the

vicinity of this or any other appliance.

— WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electrical switch;

do not use any phone in your build-

ing.

• Immediately call your gas supplier

from a neighbor’s phone. Follow the

gas supplier’s instructions.

WARNING: This gas log set is for instal-

lation in a masonry solid fuel burning

fireplace or a U.L. listed manufactured

solid fuel burning fireplace.

WARNING: This is an unvented gas-

fired heater. It uses air (oxygen) from

the room in which it is installed. Provi-

sionsforadequatecombustionandven-

tilation air must be provided. Refer to

Air for Combustion and Ventilation sec-

tion in this manual.

• If you cannot reach your gas sup-

plier, call the fire department.

— Installation and service must be per-

formed by a qualified installer, service

agency, or the gas supplier.

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WARNINGS Continued

SAFETY

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

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

INFORMATION

Continued

• 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.

4. Never install the heater

• in a recreational vehicle

• where curtains, furniture, clothing, or other flammable objects are less than 36

inches from the front, top, or sides of the heater

• in high traffic areas

• in windy or drafty areas

5. Before installing in a solid fuel burning fireplace, the chimney flue and firebox must be

cleanedofsoot,creosote,ashesandloosepaintbyaqualifiedchimneycleaner.Creosote

willigniteifhighlyheated.Inspectchimneyfluefordamage.Ifdamaged,operateheater

with flue damper closed.

6. 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.

7. Youmustoperatethisheaterwithafireplacescreeninplace. Makesurefireplacescreen

is closed before running heater.

8. 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.

9. 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.

10. Do not use a blower insert, heat exchanger insert or other accessory not approved for

use with this heater.

11. Thisheaterneedsfresh,outsideairventilationtorunproperly.Thisheaterhasanoxygen

depletion sensor (ODS) pilot light safety system. The ODS shuts down the heater if not

enough fresh air is available. See Air for Combustion and Ventilation, pages 5 through

7. If heater keeps shutting off, see Troubleshooting, pages 25 through 28.

12. Do not run heater

• where flammable liquids or vapors are used or stored

• under dusty conditions

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

14. Never place any objects on the heater.

15. 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 shut-down. Allow surface to cool before touching.

16. Carefully supervise young children when they are in the room with heater.

17. 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.

18. Donotoperateheaterifanylogisbroken.Donotoperateheaterifalogischipped(dime-

sized or larger).

19. Turn heater off and let cool before servicing. Only a qualified service person should

service and repair heater.

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

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PRODUCT

Crossover Log

Back Log

IDENTIFICATION

Front Log

Burner

Middle Log

Piezo

Ignitor

Control Knob

Base Grate

Figure 1 - Vent-Free Gas Log Heater

Install and use heater with care. Follow all local codes. In the absence of local

codes, use the latest edition of The National Fuel Gas Code ANSI Z223, also

known as NFPA 54*.

LOCAL CODES

*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 operation is not

permitted.

1. Remove logs and heater base assembly from carton. Note: Do not pick up

heater base assembly by burners. This could damage heater. Always handle

base assembly by grate.

2. Remove all protective packaging applied to logs and heater for shipment.

3. Check all items for any shipping damage. If damaged, promptly inform dealer

where you bought heater.

UNPACKING

PRODUCT

Operation

This heater is clean burning. It requires no outside venting. There is no heat loss out

FEATURES 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. State and local

codes in some areas prohibit the use of vent-free heaters. You can operate heater as

a vented product by opening flue damper.

Safety Device

This heater has a pilot with an Oxygen Depletion Sensor Shutoff System (ODS).

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.

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AIR FOR

COMBUSTION

AND

WARNING

This heater shall not be installed in a confined space 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.

VENTILATION

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 fuel-burning appliances.

PROVIDING ADEQUATE VENTILATION

The following is exerpts from National Fuel Gas Code. NFPA 54/ANSI 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 Contruction; 2. Unconfined Space; 3. Confined Space.

The information on pages 5 through 7 will help you classify your space and provide

adequate ventilation.

Unusually Tight Construction

The air that leaks around doors and windows may provide enough fresh air for

combustion and ventilation. However, in buildings of unusually tight construction,

you must provide additional fresh air.

Unusually tight construction is defined as construction where:

a. walls and ceilings exposed to the outside atmosphere have a continu-

ous water vapor retarder with a rating of one perm or less with open-

ings 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 addi-

tional fresh air. See Ventilation Air From Outdoors, page 7.

If your home does not meet all of the three criteria above, proceed to page 6.

Unconfined Space

The National Fuel Gas Code, ANSIZ223.1, 1992, Section 5.3 defines uncon-

fined space as having a minimum air volume of 50 cubic feet (127 cubic cm) for

each 1000 Btu/Hr input rating of all appliances in the space (cubic feet equals

length x width x height of space). Include adjoining rooms only if there are

doorless passageways or ventilation grills between the rooms.

Confined Space

The National Fuel Gas Code, ANSIZ223.1, 1992, Section 5.3 defines confined

space as having an air volume of less than 50 cubic feet (127 cubic cm) for each

1000 Btu/Hr input rating of all appliances in the space (cubic feet equals length

x width x height of space). Include adjoining rooms only if there are doorless

passageways or ventilation grills between the rooms.

Continued

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DETERMINING AIR FLOW FOR HEATER LOCATION

AIR FOR

COMBUSTION

AND

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.

VENTILATION

1. Determine the volume of the space (length x width x height).

Continued

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) =

2560 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. 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: 2560 cu. ft. (volume of space) ÷ 50 cu. ft. = 51.2 or 51,200 (maximum

Btu/Hr the space can support)

3. Add the Btu/Hr of all fuel burning appliances in the space.

Vent-free heater

Gas water heater*

Gas furnace

Vented gas heater

Gas fireplace logs

Other gas appliances*

Total

___________________ Btu/Hr

+ ___________________ Btu/Hr

= ___________________ Btu/Hr

Example: Gas water heater

Vent-free heater

Total

40,000

39,000

79,000

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: 51,200 Btu/Hr (maximum the space can support)

79,000 Btu/Hr (actual amount of Btu/Hr used)

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 adjoining room or add ventilation grills between

rooms. See Ventilation Air From Inside Building, page 7.

B. Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 7.

C. Install a lower Btu/Hr 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.

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AIR FOR

COMBUSTION

AND

WARNING

If the area in which the heater may be operated is smaller than

that defined as an unconfined space, provide adequate combus-

tion and ventilation air by one of the methods described in the

National Fuel Gas Code, ANSI Z223.1, 1992, Section 5.3.

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 2). You can also remove door into adjoining room (see option 3,

Figure 2). Follow the National Fuel Gas Code NFPA 54/ANSI 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. Thecombinedspacesmusthaveenoughfreshairtosupplyall

appliances in both spaces.

12"

Ventilation

Ventilation Grills

Into Adjoining Room,

Option 2

Grills

Into Adjoining

Room,

Remove

Door into

Adjoining

Room,

Option

Option 1

12"

Figure 2 - Ventilation Air from Inside Building

Ventilation Air From Outdoors

Provide extra fresh air by using ventilation grills or ducts. You must provide two perma-

nent 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.

IMPORTANT:Donotprovideopeningsforinletoroutletairintoatticifattichasathermostat-

controlled power vent. Heated air entering the attic will activate the power vent.

Ventilated

Outlet

Attic

Air

Outlet

Air

To Attic

Crawl

Space

Inlet

Air

Ventilated

Inlet Air

Crawl Space

Figure 3 - Ventilation Air from Outdoors

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NOTICE

INSTALLING

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.

Inspect chimney flue for damage. If damaged, operate heater with

flue damper closed.

WARNING

Sealanyfreshairventsorashclean-outdoorslocatedonfloororwall

of fireplace. If not, drafting may cause pilot outage or sooting. Use a

heat-resistant sealant. Do not seal chimney flue damper.

WARNING

Never install the heater

• in a bedroom or bathroom

• in a recreational vehicle

• wherecurtains,furniture,clothing,orotherflammableobjectsare

less than 36 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 in the air

(such as tobacco smoke) exist, may discolor walls.

IMPORTANT: Vent-free heaters add moisture to the air. Although this is benefi-

cial, installing heater in rooms without enough ventilation air may cause mildew to

form from too much moisture. See Air for Combustion and Ventilation, pages 5

through 7.

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.

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INSTALLATION AND CLEARANCES (Vent-Free Operation Only)

INSTALLING

Continued

WARNING

Maintain the minimum clearances. If you can, provide greater clear-

ances 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

Log

Size

18"

24"

30"

Minimum Firebox Size

Height

17"

Depth

14"

Front Width

20"

26"

32"

14"

Carefully follow the instructions below. This will ensure safe installation into a

masonry or U.L. listed manufactured fireplace.

Minimum Wall and Ceiling Clearances (see Figure 4)

A. Clearances from the side of the fireplace opening to any combustible wall

should not be less than 16 inches.

B. Clearances from the top of the fireplace opening to the ceiling should not be

less than 42 inches.

42"

16"

Left and Right

Sides

Figure 4 - Minimum Clearance to Wall and Ceiling

Continued

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INSTALLING

NOTICE

You may use this heater as a vented product. If so, you must

always run heater with chimney flue damper open. If running

heater with damper open, non-combustible material above fire-

place opening is not needed. Go to Installing Damper Clamp

Accessory for Vented Operation, page 13.

Continued

Minimum Non Combustible Material Clearances

If Not Using Mantel

Note: If using a mantel, go to page 11. If not using a mantel, follow the informa-

tion on this page.

You must have non combustible material(s) above the fireplace opening. Non

combustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch

thick. With sheet metal, you must have non combustible material behind it. Non

combustible material must extend at least 8" up (for all models). If non combus-

tible material is less than 12", you must install the fireplace hood accessory (24"

and 30" models only). See chart below and Figure 5 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 13.

Non-Combustible

Material Distance (A)

Requirements for

Safe Installation

12" or more

Non combustible material okay.

Between 8" and 12"

24" or 30" Models: Install fireplace hood acessory

(GA6050 or GA6052, see Accessories, page 33).

18" Model: Non combustible material okay.

Less than 8"

Non combustible 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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Minimum Non Combustible Material Clearances

INSTALLING

If Using Mantel

Continued

You must have non combustible material(s) above the fireplace opening. Non

combustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch

thick. With sheet metal, you must have non combustible material behind it. Non

combustible material must extend at least 8 inches up (for all models). If non

combustible material is less than 12", you must install the fireplace hood acces-

sory (24" and 30" models only). Even if non combustible material is more than

12", you may need the hood accessory to deflect heat away from your mantel

shelf. See chart below and Figures 6 and 7 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 Acces-

sory for Vented Operation, page 13.

Non-Combustible

Material Distance (A)

Requirements for

Safe Installation

12" or more

Non combustible material okay.

Between 8" and 12"

24" or 30" Models: Install fireplace hood acessory

(GA6050 or GA6052, see Accessories, page 33).

18" Model: Non combustable material okay.

Less than 8"

Non combustible 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.

Mantel Clearances

If you meet minimum clearance between mantel shelf and top of fireplace open-

ing, a hood is not required (see Figure 6).

Mantel Shelf

10"

Underside of

Mantel Shelf

2 ^1/2"

All minimum

distances are

in inches

Minimum Non-

Combustible

(A)

Log Set

24"/30" Models

Material

12"

20"

14"

24¹/2"

16³/4"

27¹/2" 30"

18¹/2" 20"

18" Model

Top of Fireplace

Opening

Minimum Non-

Combustible

Material Height

Distances to

Underside of

Mantel

Figure 6 - Minimum Mantel Clearances Without Using Hood

If above minimum clearances are not met, you must have a hood. Follow

minimum clearances shown in Figure 7 when using hood.

Continued

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Mantel Shelf

INSTALLING

12"

10"

Underside of

Mantel Shelf

Continued

2 ^1/2"

All minimum

distances are

in inches

Minimum Non-

Combustible

Material

Log Set

Min.

12"

15"

18"

20"

18", 24", 30"

Models

Top of Fireplace

Opening

Hood

(GA6050, GA6052)

Distances to

Underside of

Mantel

Figure 7 - Minimum Mantel Clearances When Using Hood

If your installation does not meet the above minimum clearances, you must:

• operate the logs only with the flue damper open, OR

• raise the mantel to an acceptable height, OR

• 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).

Combustible

Material

14"

Min.

Non-Combustible Material

Figure 8 - Minimum Fireplace Clearances If Installed at Floor Level

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).

Hearth

Combustible

Material

Min.

Figure 9 - Minimum Fireplace Clearances Above Combustible Flooring

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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 non combustible

material.

INSTALLING

Continued

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.

Ifreasonsnumber1or2aboveapplytoyou,youmustpermanentlyopenchimneyflue

damper.Youmustinstallthedamperclampaccessory(toorder,seeAccessories,page

33). 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.

Area of Various Standard Round Flues

Diameter (ins.)

Area (sq. ins.)

20 sq. inches

29 sq. inches

39 sq. inches

51 sq. inches

Chimney

Height (ft.)

Minimum Permanent

Flue Opening (sq. ins.)

6' to 15'

15' to 30'

39 sq. inches

29 sq. inches

Damper

Clamp

Damper

Clamp

Damper

Masonry Fireplace

Manufactured Fireplace

Figure 10 - Attaching Damper Clamp

Continued

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INSTALLING HEATER BASE ASSEMBLY

INSTALLING

Continued

WARNING

You must secure this heater to fireplace floor. If not, heater will move

when you adjust controls. Moving heater may cause a gas leak.

WARNING

If installing in a sunken fireplace, special care is needed. You

must raise the fireplace floor to allow access to heater control

panel. This will insure adequate air flow and guard against soot-

ing. Raise fireplace floor with non-combustible 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: 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.

Installation Items Needed

• hardware package (provided with heater)

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

• sealant resistant to propane (propaneLP) gas, not provided

• electric drill with 3/16" drill bit

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, page 15).

IMPORTANT:Hold gas regulator with wrench when connecting flexible gas hose.

2. Locate masonary screws in hardware package.

3. Position heater base assembly in fireplace.

4. Mark screw locations through holes in mounting brackets (see Figure 12, page

15). If installing in a brick-bottom fireplace, mark screw locations in mortar

joint of bricks.

5. Remove heater base from fireplace.

6. Drill holes at marked locations using 3/16" drill bit.

7. Attach base assembly to fireplace floor using two masonry screws (in hardware

package) (see Figure 12, page 15).

8. Connect to gas supply. See Connecting To Gas Supply, page 16.

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INSTALLING

Heater Gas

Regulator

Continued

Fitting

Flexible Gas Hose

(if allowed by local codes)

Figure 11 - Attaching Flexible Gas Hose to Heater Gas Regulator

Masonry Screw

Mounting

Bracket

Figure 12 - Attaching Base Assembly to Fireplace Floor

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CONNECTING TO GAS SUPPLY

INSTALLING

Continued

NOTICE

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)

• manual shutoff valve *

• sediment trap

• tee joint

• pipe wrench

• test gauge connection *

* AnA.G.A. design-certifiedmanualshutoffvalvewith1/8"NPTtapisanacceptable

alternative to test gauge connection. Purchase the optional A.G.A. design-certified

manual shutoff valve from your dealer. See Accessories, page 33.

WARNING

Never connect heater to private (non-utility) gas wells. This gas is

commonly known as well-head 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 a manual shutoff valve, union, and plugged 1/8" NPT

tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be up-

stream from heater (see Figure 13, page 17).

Apply pipe joint sealant lightly to male threads. This will prevent excess sealant

from going into pipe. Excess sealant in pipe could result in clogged heater valves.

CAUTION

Use pipe joint sealant that is resistant to liquid petroleum (LP) gas.

Install sediment trap in supply line as shown in Figure 13, page 17. Locate sedi-

ment trap where it is within reach for cleaning. Locate sediment trap where

trapped matter is not likely to freeze. A sediment trap traps moisture and contami-

nants. This keeps them from going into heater controls. If sediment trap is not

installed or is installed wrong, heater may not run properly.

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INSTALLING

CAUTION

Continued

Avoid damage to regulator. Hold gas regulator with wrench when

connecting it to gas piping and/or fittings.

A.G.A. Design-Certified

Manual Shutoff Valve

With 1/8" NPT Tap*

From

Approved Flexible

Gas Hose (if allowed

by local codes)

Gas Meter

(5" W.C.** to

10.5" W.C.

Pressure)

Gas

Regulator

Tee Joint

Pipe

Nipple

3" Minimum

Cap

Sediment

Trap

Figure 13 - Gas Connection

* Purchase the optional A.G.A. design-certified manual shutoff valve from your

dealer. See Accessories, page 33.

** Minimum inlet pressure for purpose of input adjustment.

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

1. Disconnect heater and its individual manual 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 manual shutoff valve was connected.

Continued

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3. Pressurize supply piping system by either using compressed air or opening

main gas valve located on or near gas meter.

INSTALLING

4. Check all joints of gas supply piping system. Apply mixture of liquid soap and

water to gas joints. Bubbles forming show a leak.

Continued

5. Correct all leaks at once.

6. Re-connect heater and manual shutoff valve to gas supply. Check re-connected

fittings for leaks.

Test Pressures Equal To or Less Than 1/2 PSIG

1. Close manual shutoff valve (see Figure 14).

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 manual shutoff valve (see Figure 15). Apply

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

4. Correct all leaks at once.

Pressure Testing Heater Gas Connections

1. Open manual shutoff valve (see Figure 14).

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 manual shutoff valve to control valve (see Figure 15).

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 20 through 22 [manually-controlled

models] or pages 22 through 24 [thermostatically-controlled model]). Check all

other internal joints for leaks.

7. Turn off heater (see To Turn Off Gas to Appliance, page 21[manually-con-

trolled models]) or page 24 [thermostatically-controlled model].

Open

POSITION

Manual

Shutoff

Valve

OFF

POSITION

Closed

Figure 14 - Manual Shutoff Valve

Manual

Thermostat Gas Valve or

Shutoff

Control Valve Location

Valve

Gas Meter

Figure 15 - Checking Gas Joints

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INSTALLING LOGS

INSTALLING

Continued

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 16).

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 17). 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 18).

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 cross-

over log lines up with rectangular knobs on top of the middle and front logs

(see Figure 19).

Back Log (#1)

Middle Log (#2)

Peg

Hole in

Grate Base

Tab

Burner

Cutout

“U” Bend

U-Shaped

Slot

Figure 16 - Installing Back Log (#1)

Figure 17 - Installing Middle Log (#2)

Front Log (#3)

Crossover

Log (#1)

Notches

Recess

Post

Rectangular

Knobs

Post

Figure 18 - Installing Front Log (#3)

Figure 19 - Installing Crossover Log (#4)

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OPERATING

FOR YOUR SAFETY READ BEFORE LIGHTING

HEATER

Manually-

Controlled Models

WARNING

If you do not follow these instructions exactly, a fire or explosion may

result causing property damage, personal injury or loss of life.

A. This appliance has a pilot which must be lighted by hand. When lighting the pilot,

follow these instructions exactly.

B. BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell

next to the floor because some gas is heavier than air and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electric switch; do not use any phone in your building.

• Immediately call your gas supplier from a 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. Never 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: Homeowners 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 above.

2. Make sure manual shutoff valve is fully open.

Clockwise

3. Press in and turn control knob clockwise

to the OFF position.

Control Knob

Ignitor Button

PILOT

OFF

Figure 20 - Control Knob and Ignitor Button Location

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 above. If you

don’t smell gas, go to the next step.

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C-clockwise

5. Slightly depress and turn control knob counterclockwise

position. Press in control knob for five (5) seconds (see Page 20).

to the PILOT

OPERATING

HEATER

Manually-

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.

Controlled Models

Continued

6. With control knob pressed in, press and release ignitor button. This will light

pilot. The pilot is attached to the burner. If needed, keep pressing ignitor button

until pilot lights.

Note: If pilot does not stay lit, contact a qualified service person or gas supplier

for repairs. Until repairs are made, light pilot with match. To light pilot with

match, see Manual Lighting Procedure, page 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.

Ignitor Electrode

Pilot Burner

Thermocouple

Figure 21 - Pilot

• 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

to desired

C-clockwise

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.

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 TOAPPLIANCE

Shutting Off Heater

1. Press in and turn control knob clockwise

to the HIGH position.

Clockwise

2. Turn control knob clockwise to the pilot position.

Clockwise

3. Press in control knob and turn clockwise

to the OFF position.

Clockwise

Shutting Off Burners Only (pilot stays lit)

1. Turn control knob clockwise

to the HIGH position.

to the pilot position.

Clockwise

2. Press in and turn control knob clockwise

Clockwise

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OPERATING

MANUAL LIGHTING PROCEDURE

1. Follow steps 1 through 5 under Lighting Instructions, pages 20 and 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 on page 21.

HEATER

Manually-

Controlled Models

Continued

OPERATING

FOR YOUR SAFETY READ BEFORE LIGHTING

HEATER

Thermostatically-

Controlled Model

WARNING

If you do not follow these instructions exactly, a fire or explosion may

result causing property damage, personal injury or loss of life.

A. This appliance has a pilot which must be lighted by hand. When lighting the pilot,

follow these instructions exactly.

B. BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell

next to the floor because some gas is heavier than air and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electric switch; do not use any phone in your building.

• Immediately call your gas supplier from a 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. Never 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

fireplacewillcauseglasstoburst. Alsoiffireplaceopeninghasventsatthe

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: Homeowners 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.

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1. STOP! Read the safety information above.

2. Make sure manual shutoff valve is fully open.

OPERATING

HEATER

Thermostatically-

Controlled Model

Continued

Clockwise

3. Turn control knob clockwise

to the OFF position.

Control Knob

Ignitor Button

Figure 22 - Control Knob and Ignitor Button Location

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 above. If you

don’t smell gas, go to the next step.

C-clockwise

5. Turn control knob counterclockwise

to the PILOT position. Press in

control knob for five (5) seconds (see above).

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 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 on page 24.

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.

Ignitor Electrode

Pilot Burner

Thermocouple

Figure 23 - Pilot

8. Turn control 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 manual shutoff valve.

Continued

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TO TURN OFF GAS TO APPLIANCE

OPERATING

Shutting Off Heater

1. Turn control knob clockwise

Shutting Off Burners Only (pilot stays lit)

1. Turn control knob clockwise to the PILOT position.

HEATER

Thermostatically-

Controlled Model

Continued

to the OFF position.

Clockwise

THERMOSTAT CONTROL OPERATION

(Thermostat-Controlled Models Only)

The thermostat control knob can be set to any comfort level between Hi and Lo. The

thermostat will gradually modulate the heat output and flame height from higher to

lower settings, or pilot, in order to maintain the comfort level you select. The ideal

comfort setting will vary by household depending upon the amount of space to be

heated, the output of the central heating system, etc.

Note: Selecting the Hi setting with the control knob will cause the burner to remain

fully on, without modulating down in most cases.

MANUAL LIGHTING PROCEDURE

1. Follow steps 1 through 5 under Lighting Instructions, page 23.

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, page 23.

Check pilot flame pattern and burner flame patterns often.

INSPECTING

BURNERS

PILOT FLAME PATTERN

Figure 24 shows a correct pilot flame pattern. Figure 25 shows an incorrect pilot flame

pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the

thermocouple to cool. When the thermocouple cools, the heater will shut down.

Thermocouple

Pilot Burner

Figure 24 - Correct Pilot

Flame Pattern

Figure 25 - Incorrect Pilot

Flame Pattern

If pilot flame pattern is incorrect, as shown in Figure 25

• turn heater off (see To Turn Off Gas to Appliance, page 21 [manually-con-

trolled models] or above [thermostat-controlled model])

• see Troubleshooting, pages 25 through 28

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CLEANING

AND

WARNING

Turn off heater and let cool before cleaning.

MAINTENANCE

CAUTION

You must keep control areas, burner, and circulating air passage-

ways 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, etc.

ODS/PILOT AND BURNER

• Use a vacuum cleaner or small, soft bristled brush to clean.

LOGS

• If you remove logs for cleaning, refer to Installing Logs, page 19, to properly

replace logs.

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

TROUBLE-

SHOOTING

WARNING

Turn off and unplug heater and let cool before servicing. Only a

qualified service person should service and repair heater.

Note: All troubleshoot-

ing items are listed in

order of operation.

CAUTION

Never use a wire, needle, or similar object to clean ODS/pilot.

This can damage ODS/pilot unit.

OBSERVED

PROBLEM

POSSIBLE

CAUSE

REMEDY

When ignitor button

is pressed, there is

no spark at ODS/

pilot

1. Ignitor electrode not con- 1. Reconnect ignitor cable

nected to ignitor cable

2. Ignitor cable pinched or

wet

2. Free ignitor cable if

pinched by any metal

or tubing. Keep ignitor

cable dry

3. Piezo ignitor nut is loose 3. Tighten nut holding

piezo ignitor to base

panel of log set. Nut is

located behind base

panel.

4. Broken ignitor cable

5. Bad piezo ignitor

6. Ignitor electrode broken

7. Ignitor electrode posi-

tioned wrong

4. Replace ignitor cable

5. Replace piezo ignitor

6. Replace piezo ignitor

7. Replace piezo ignitor

Continued

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OBSERVED

PROBLEM

POSSIBLE

CAUSE

TROUBLE-

REMEDY

SHOOTING

When ignitor button

is pressed, there is

spark at ODS/pilot

but no ignition

1. Gas supply turned off or 1. Turn on gas supply or

Continued

manual shutoff valve

closed

open manual shutoff

valve

2. Control knob not in

PILOT position

2. Turn control knob to

PILOT position

3. Control knob not

pressed in while in

PILOT position

3. Press in control knob

while in PILOT position

4. Air in gas lines when

installed

4. Continue holding down

control knob. Repeat

igniting operation until

air is removed

5. ODS/pilot is clogged

5. Clean ODS/pilot (see

Cleaning and Mainte-

nance, page 25) or

replace ODS/pilot

assembly

6. Gas regulator setting is

not correct

6. Replace gas regulator

ODS/pilot lights but

flame goes out when

control knob is

released

1. Control knob not fully

pressed in

2. Control knob not

pressed in long enough

1. Press in control knob

fully

2. After ODS/pilot lights,

keep control knob

pressed in 30 seconds

3. Fully open manual shut-

off valve

3. Manual shutoff valve

not fully open

4. Pilot flame not touching

thermocouple, 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

4. A) Contact local natural

gas company

B) Clean ODS/pilot

(see Cleaning and

Maintenance, page 25)

or replace ODS/pilot

assembly

5. Thermocouple connec-

tion loose at control

valve

5. Hand tighten until snug,

then tighten 1/4 turn

6. Thermocouple damaged

7. Control valve damaged

6. Replace thermocouple

7. Replace control valve

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OBSERVED

PROBLEM

POSSIBLE

CAUSE

TROUBLE-

REMEDY

SHOOTING

Burner does light

after ODS/pilot is lit

1. Burner orifice clogged

1. Clean burner (see

Cleaning and Mainte-

nance, page 25) or

replace burner orifice

2. Contact local natural gas

company

Continued

2. Inlet gas pressure is

too low

3. Burner orifice diameter 3. Replace burner orifice

is too small

Delayed ignition

burner

1. Manifold pressure is

too low

2. Burner orifice clogged

1. Contact local natural gas

company

2. Clean burner (see

Cleaning and Mainte-

nance, page 25) or

replace burner orifice

Burner backfiring

during combustion

1. Burner orifice is

clogged or damaged

1. Clean burner (see

Cleaning and Mainte-

nance, page 25) or

replace burner orifice

2. Replace damaged burner

3. Replace gas regulator

2. Damaged burner

3. Gas regulator defective

Slight smoke or

odor during initial

operation

1. Not enough air

1. Check burner for dirt

and debris. If found,

clean burner (see

Cleaning and Mainte-

nance, page 25)

2. Gas regulator defective

3. Residues from manu-

facturing processes

2. Replace gas regulator

3. Problem will stop after a

few hours of operation

and logs curing

Moisture/condensa-

tion noticed on

windows

1. Not enough combus-

tion/ventilation air

1. Refer to Air for Com-

bustion and Ventilation

requirements (page 5)

Heater produces a

whistling noise

when burner is lit

1. Turning control knob

to HI position when

burner is cold

1. Turn control knob to LO

position and let warm up

for a minute

2. Air in gas line

2. Operate burner until air

is removed from line.

Have gas line checked

by local natural gas

company

3. Air passageways on

heater blocked

3. Observe minimum

installation clearances

(see pages 9-12)

4. Dirty or partially

4. Clean burner (see

Cleaning and Maintenance,

page 25) or replace

burner orifice

clogged burner orifice

Continued

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TROUBLE-

WARNING

If you smell gas

• Shut off gas supply.

SHOOTING

Continued

• 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: 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.

POSSIBLE

CAUSE

OBSERVED

PROBLEM

REMEDY

1. Metal expanding while

heating or contracting

while cooling

Heater produces a

clicking/ticking noise

just after burner is lit

or shut off

1. This is common with

most heaters. If noise is

excessive, contact

qualified service person

1. Heater burning vapors

from paint, hair spray,

glues, cleaners, chemi-

cals, new carpet, etc.

(See IMPORTANT

Heater produces

unwanted odors

1. Open window and

ventilate room. Stop using

odor causing products

while heater is running

statement above)

2. Gas leak. See Warning

statement at top of

page

2. Locate and correct all

leaks (see Checking Gas

Connections, page 17)

1. Not enough fresh air is

available

Heater shuts off in use

(ODS operates)

1. Open window and/or door

for ventilation

2. Low line pressure

2. Contact local natural gas

company

3. ODS/pilot is partially

clogged

3. Clean ODS/pilot (see

Cleaning and Mainte-

nance, page 25)

1. Gas leak. See Warning

statement at top of

page

Gas odor even when

control knob is in OFF

position

1. Locate and correct all

leaks (see Checking Gas

Connections, page 17)

2. Replace control valve

2. Control valve defective

1. Foreign matter between

control valve and burner

2. Gas leak. See Warning

statement at top of

page

Gas odor during

combustion

1. Take apart gas tubing and

remove foreign matter

2. Locate and correct all

leaks (see Checking Gas

Connections, page 17)

1. Thermostat sensing bulb

needs to be repositioned.

Logs set cycles to

pilot, but room

temperature drops to a

lower than ideal level

before log set comes

back on

1. Reposition thermostat

sensing bulb (see instruc-

tions for Optional

Positioning of Thermostat

Sensing Bulb, page 29.

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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.

OPTIONAL

POSITIONING

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 has been provided.

THERMOSTAT

SENSING BULB

Tools needed: 1/4" hex driver or socket

1. Remove logs. Locate the gas valve assembly and thermostat sensing blub (see Figure

26).

For Masonry and

Factory-built

Gas Valve

Assembly

Metal Fireplace

Thermostat

Sensing Bulb

Mounting

Bracket

Figure 26 - Location of Gas Valve Assembly and Thermostat Sensing Bulb

2. The adhesive-backed mounting clip (see Figure 27) is attached to the thermostat

sensing bulb. Remove the adhesive-backed mounting clip.

Figure 27 - Adhesive-backed Mounting Clip

3. With 1/4" hex driver or socket, loosen the thermostat screw. Carefully slide the

thermostat sensing bulb out of the retaining clamp (see Figure 28).

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.

Capillary

Thermostat Screw

Retaining Clamp

Thermostat

Sensing Bulb

Figure 28 - Removing Thermostat Sensing Bulb

4. 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 29 on page 30 for location.

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Thermostat

Sensing Bulb

OPTIONAL

POSITIONING

Adhesive-backed

Mounting Clip

THERMOSTAT

SENSING BULB

Figure 29 - Locating Thermostat Sensing Bulb on Masonry Fireplace

For Masonry and

Factory-built

Metal Fireplace

Continued

If you have a factory-built metal fireplace, see Figure 30 for location.

Thermostat

Sensing Bulb

Adhesive-backed

Mounting Clip

Figure 30 - Locating Thermostat Sensing Bulb on Factory-built Metal Fireplace

If your fireplace has glass doors, position sensing bulb directly behind door gap on right

bottom side (see Figure 31).

Thermostat

Sensing Bulb

Adhesive-backed

Mounting Clip

Glass

Doors

Figure 31 - Installing Thermostat Sensing Bulb behind Glass Doors

5. 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 32). Slide the thermostat sensing bulb into the clip.

IMPORTANT: Do not crimp capillary.

Thermostat

Sensing Bulb

Adhesive-backed

Mounting Clip

Capillary

Do Not Crimp Capillary

Figure 32 - Positioning the Thermostat Sensing Bulb in the Vertical

Position with the Capillary at the Bottom

102990

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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).

TECHNICAL

SERVICE

18" Model

24" Models

30" Model

SPECIFICATIONS

Btu (Variable)

Type Gas

16,000/30,000

20,000/39,000

20,000/39,0000

Natural Gas Only Natural Gas Only Natural Gas Only

Ignition

Piezo

Manifold Pressure

3.5" W.C.

Inlet Gas

Pressure (in. of water)

Maximum

10.5"

Minimum*

Shipping Weight

28 lbs.

30 lbs.

32 lbs.

* For the purpose of input adjustment

When gas pressure is too low

• pilot will not stay lit

SERVICE

HINTS

• 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.

102990

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Note: Use only original replacement parts. This will protect your warranty cover-

age for parts replaced under warranty.

REPLACEMENT

PARTS

Parts Under Warranty

Contact authorized dealers of this product. If they can’t supply original replace-

ment part(s), call DESA International’s Technical Service Department at

1-800-DESA LOG (1-800-337-2564).

When calling DESA International, have ready

• your name

• your address

• model number of your heater

• how heater was malfunctioning

• type of gas used (propane or natural gas)

• purchase date

Usually, we will ask you to return the defective part to the factory.

Parts Not Under Warranty

Contact authorized dealers of this product. If they can’t supply original replace-

ment part(s), 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

These Parts Centrals are privately owned businesses. They have agreed to support

our customer’s needs by providing original replacement parts and accessories.

PARTS

CENTRAL

Baltimore Electric

1348 Dixwell Avenue

Hamden, CT 06514

1-800-397-7553

Washer Equipment Co.

1715 Main Street

Kansas City, MO 64108

KS, MO, AR

Dayton Hardware

P.O. Box 275

North Dayton Station

Dayton, OH 45404

All States

203-248-7553

816-842-3911

Parts Department

513-258-3721

East Coast Energy

Products

833 Broadway

W. Long Branch, NJ

07764

OH 1-800-762-3426

Portable Heater Parts

342 N. County Rd. 400 East

Valparaiso, IN 46383

All States

219-462-7441

1-800-362-6951

Halco Enterprises

208 Carter Drive, Unit 21

West Chester, PA 19382

215-696-2670

908-870-8809

1-800-755-8809

1-800-368-0803

FBD

Tarantin Tank Co.

P.O. Box 6129

Freehold, NJ 07728

908-780-9340

LA Porte’s Parts &

Service

2444 N. 5th Street

Hartsville, SC 29550

803-332-0191

P O Box 1096

Franklin, KY 42134

502-586-1922

1-800-654-8534

1-800-922-0724

Parts Department

Four Flags Power Products

1115 Stateline Road

Niles, MI 49120

616-684-2697

Parts Only

Albany Ladder

1586-90 Central Avenue

Albany, NY 12205

NY, MA, VT

Cans Unlimited, Inc.

P.O. Box 645

Taylor, SC 29687

All States

518-869-5335

1-800-354-7368

803-879-3009

1-800-845-5301

Master Service Center

1184 Wilson NW

Walker, MI 49504

616-791-4760

1-800-446-1446

102990

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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.

ACCESSORIES

MANUAL SHUTOFF

VALVE - GA5010

For all models. Manual shutoff valve

with 1/8" NPT tap. Fits 1/2" NPT

pipe.

BLACK FIREPLACE

HOOD - GA6050

For all models. Helps

deflect heat away from

mantel or wall above

fireplace.

BRASS FIREPLACE

HOOD - GA6052

For all models. Helps

deflect heat away from

mantel or wall above

fireplace.

DAMPER CLAMP - GA6080

For variably controlled models.

Permanently opens chimney flue

damper for vented operation.

LAVA ROCK - GA6060

For all models. Order when additional

rock is desired. (3 lb. bag)

102990

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ILLUSTRATED

PARTS

BREAKDOWN

Variable Manually-

Controlled Models

CGD3018N

CGD3924N

CGD3930N

20-2

20-1

102990

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This list contains replaceable parts used in your heater. When ordering parts,

follow the instructions listed under Replacement Parts on page 28 of this manual.

PARTS LIST

KEY

NO.

CGD3018N

PART NUMBER

CGD3924N

PART NUMBER

CGD3930N

PART NUMBER

DESCRIPTION

QTY.

103008-02

103009-02

103010-02

103011-02

102774-04BR

102844-02

102966-02

098867-11

102798-01

102779-03

099056-18

102843-01

102980-01

102568-07

098508-01

098354-01

102445-01

099387-08

098271-07

103042-01

103008-01

103009-01

103010-01

103011-01

102774-01BR

102844-01

102966-01

098867-11

102798-01

102779-01

099056-16

102843-01

102772-01

102568-05

098508-01

098354-01

102445-01

099387-08

098271-07

103042-01

099594-01

098593-01

M11084-38

098304-03

098276-01

098249-01

099553-01

103008-03

103009-03

103010-03

103011-03

102774-03BR

102844-01

102966-01

098867-11

102798-01

102779-01

099056-16

102843-01

102772-01

102568-05

098508-01

098354-01

102445-01

099387-08

098271-07

103042-01

099594-01

098593-01

M11084-38

098304-03

098276-01

098249-01

099553-01

Back Log (#1)

Middle Log (#2)

Front Log (#3)

Crossover Log (#4)

Painted Base Assembly

Lower Bracket

Upper Bracket

Gas Regulator

Inlet Tube

Outlet Burner Tube

Burner Orifice Injector

Burner Clip

Burner

Control Valve

Valve Retainer Nut

Control Knob

Piezo Ignitor

Pilot Tube

Ignitor Cable

ODS Pilot

20-1 099594-01

20-2 098593-01

Ignitor Electrode

Thermocouple

Regulator Screw

Black Screw, PPH #8-18

Hex Head Plug, 1/8 NPT

Nut, M5

M11084-38

098304-03

098276-01

098249-01

099553-01

Pilot Shield

PARTS AVAILABLE — NOT SHOWN

100563-01

101055-02

100565-01

100639-01

101449-04

101137-02

101416-18

GA6060

100563-01

101055-02

100565-01

100639-01

101449-04

101137-02

101416-18

GA6060

Warning Plate

101055-02

100565-01

100639-01

101449-04

101137-02

101416-18

GA6060

Lighting Instructions Plate

Warning Plate Fastener

Caution Decal

Control Position Decal

Hardware Kit

Information Video

Lava Rock

102990

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ILLUSTRATED

PARTS

BREAKDOWN

Thermostatically-

Controlled Manuals

CGD3924NT

20-2

20-1

102990

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This list contains replaceable parts used in your heater. When ordering parts, follow

the instructions listed under Replacement Parts on page 33 of this manual.

PARTS LIST

KEY

NO.

CGD3924NT

PART NUMBER

DESCRIPTION

QTY.

103008-01

103009-01

103010-01

103011-01

102774-05BR

102844-01

102966-01

098867-11

102981-01

102983-01

099056-16

102843-01

102772-01

101329-20

102979-01

098544-01

102445-01

099387-09

098271-07

103042-01

Back Log (#1)

Middle Log (#2)

Front Log (#3)

Crossover Log (#4)

Painted Base Assembly

Lower Bracket

Upper Bracket

Gas Regulator

Inlet Tube

Outlet Burner Tube

Burner Orifice Injector

Burner Clip

Burner

Thermostat Gas Valve Assembly

Thermostat Bracket

Thermobulb Clip

Piezo Ignitor

Pilot Tube

Ignitor Cable

ODS Pilot

Ignitor Electrode

Thermocouple

Regulator Screw

Black Screw, PPH #8-18

Pilot Shield

20-1 099594-01

20-2 098593-01

M11084-38

098304-03

099553-01

098249-01

099211-01

Nut, M5

Hex Screw, 10-16 x 2.50

PARTS AVAILABLE — NOT SHOWN

100563-01

101054-01

100565-01

100639-01

101137-02

101416-18

GA6060

Warning Plate

Lighting Instructions Plate

Warning Plate Fastener

Caution Decal

Hardware Kit

Information Video

Lava Rock

102990

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________________________________________________________________

NOTES

102990

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________________________________________________________________

NOTES

102990

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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 one (1) year 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

provideoriginalfactoryreplacementparts. Failuretouseoriginalfactoryreplacementpartsvoidsthiswarranty. Theheater

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.

TOTHEFULLEXTENTALLOWEDBYTHELAWOFTHEJURISDICTIONTHATGOVERNSTHESALEOFTHE

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 ONE (1) YEAR ON ALL COMPO-

NENTS 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 CONSE-

QUENTIAL DAMAGES.

Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of incidental or

consequentialdamages,sotheabovelimitationonimpliedwarranties,orexclusionorlimitationondamagesmaynotapply

to you.

This warranty gives you specific legal rights, and you may also have other rights that vary from state to state.

For information about this warranty write:

2701 Industrial Drive

P.O. Box 90004

Bowling Green, KY 42102-9004

102990-01

Rev. A

06/96

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