Desa CGD3924PT-NT, CRL3124P-N, CRL2718P-N, CGD3018PT-NT User Manual

UNVENTED (VENT-FREE) GAS LOG HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

Patent Pending

18", 24", AND 30" VARIABLE

MANUALLY-CONTROLLED

CRL2718P/N

CRL3124P/N
CCL3018PA/NA
CCL3924PA/NA

Biltmore Split Oak, Seasonal Oak and Smoky Moutain Oak Logs

Design-Certified As Vented Decorative Appliances

(Smoky Mountain Oak Model Shown)

18", 24", AND 30"

THERMOSTATICALLY-

MODELS

Variable Manually-Controlled Models Also

CONTROLLED MODELS

CGD3924PT/NT

CGD3018PT/NT,

CCL3018PTA/NTA,

CCL3924PTA/NTA
CCL3930PTB/NTB

WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result causing
property damage, personal injury, or loss of life.

— Do not store or use gasoline or other flammable

vapors and liquids in the vicinity of this or any other
appliance.

— WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

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

• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.

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

— Installation and service must be performed by a quali-

fied installer, service agency, or the gas supplier.

Save this manual for future reference.

For more information, visit www.desatech.com

WARNING: Improper installation, adjustment, altera­tion, service, or maintenance can cause injury or prop­erty damage. Refer to this manual for correct installation
and operational procedures. For assistance or addi­tional information consult a qualified installer, service
agency, or the gas supplier.

WARNING: This appliance is for installation only in a
solid-fuel burning masonry or UL127 factory-built fire­place, or in a listed ventless firebox enclosure. It is
design-certified for these installations in accordance
with ANSI Z21.11.2. Exception: Do not install this appli­ance in a factory-built fireplace that includes instruc­tions stating it has not been tested or should not be used
with unvented gas logs.

WARNING: This is an unvented gas-fired heater. It uses
air (oxygen) from the room in which it is installed.
Provisions for adequate combustion and ventilation air
must be provided. Refer to

Ventilation

section on page 5 of this manual.

Air for Combustion and

This appliance may be installed in an aftermarket,*
permanently located, manufactured (mobile) home,
where not prohibited by local codes.

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

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

Safety Information ............................................... 3

TABLE OF CONTENTS

Product Identification .......................................... 4

Local Codes ........................................................ 5

Unpacking ........................................................... 5

Product Features ................................................ 5

Air for Combustion and Ventilation ...................... 5

Installation ........................................................... 8

Operating Heater .............................................. 20

Inspecting Burners ............................................ 24

Cleaning and Maintenance ............................... 24

2

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Service Hints ..................................................... 25

Technical Service .............................................. 25

Troubleshooting ................................................. 26

Optional Positioning of Thermostat Sensing Bulb

Replacement Parts ........................................... 30

Specifications .................................................... 31

Illustrated Parts Breakdown and Parts List ....... 33

Parts Central ..................................................... 42

Accessories ....................................................... 43

Warranty Information.......................... Back Cover

.. 29

SAFETY INFORMATION

WARNING: This product con­tains and/or generates chemicals
known to the state of California
to cause cancer or birth defects,
or other reproductive harm.

IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, oper­ate, or service this 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 car-

bon 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 and Propane/LP Gas: Natural and propane/

LP gases are 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. Do not place propane/LP supply tank(s) in­side any structure. Locate propane/LP supply
tank(s) outdoors (propane/LP units only).

3. To prevent performance problems, do not use
propane/LP fuel tank of less than 100 lbs. ca­pacity (propane/LP units only).

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SAFETY INFORMATION

4. If you smell gas

• shut off gas supply

• do not try to light any appliance

• do not touch any electrical switch; do not
use any phone in your building

• immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions

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

5. This heater shall not be installed in a bedroom
or bathroom unless installed as a vented ap­pliance (Variable Manually-Controlled Mod­els Only) (see Installing Damper Clamp Ac-
cessory for Vented Operation, page 11).

6. 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,
repair flue and firebox before operating heater.

7. Do not burn solid-fuel in a masonry or UL127
factory-built fireplace in which a vent-free
room heater is installed.

8. If fireplace has glass doors, never operate this
heater with glass doors closed. If you operate
heater with doors closed, heat buildup inside fire­place will cause glass to burst. Make sure there
are no obstructions across openings of fireplace.

9.

This log heater is designed to be smokeless. If
logs ever appear to smoke, turn off heater and call
a qualified service person.
operation, slight smoking could occur due to log
curing and heater burning manufacturing residues.

10. To prevent the creation of soot, follow the in­structions in Cleaning and Maintenance, pages
24 and 25.

11. Before using furniture polish, wax, carpet
cleaner, or similar products, turn heater off. If
heated, the vapors from these products may
create a white powder residue within burner
box or on adjacent walls or furniture.

12. This heater needs fresh, outside air ventila­tion to run properly. This heater has an Oxy­gen Depletion Sensing (ODS) safety shutoff
system. The ODS shuts down the heater if not
enough fresh air is available. See Air for Com-
bustion and Ventilation, pages 5 through 7. If
heater keeps shutting off, see Troubleshoot-
ing, pages 26 through 28.

13. Do not run heater

• where flammable liquids or vapors are used

or stored

• under dusty conditions

4

Continued

Note:

During initial

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

15. Do not use heater if any part has been exposed
to or under water. Immediately call a qualified
service technician to inspect the room heater and
to replace any part of the control system and
any gas control which has been under water.

16. Do not operate heater if any log is broken. Do
not operate heater if a log is chipped (dime­sized or larger).

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

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

19. Provide adequate clearances around air
openings.

PRODUCT

IDENTIFICATION

Crossover Log

Front
Log

Piezo
Ignitor

Control
Knob

Base
Grate

Figure 1 - Vent-Free Gas Log Heater -

Dual Burner (Logs May Vary by Model -

Smoky Mountain Oak Model Shown)

Crossover Log

Front Log

Piezo
Ignitor

Control Knob

Figure 2 - Vent-Free Gas Log Heater -

Single Burner (Logs May Vary by Model -

Seasonal Oak Model Shown)

Back Log

Middle Log

Burner

Back Log

Burner

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, ANSI
Z223.1/NFPA 54*.

*Available from:

American National Standards Institute, Inc.

1430 Broadway

New York, NY 10018

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA 02269

Note:

Where listed vented decorative logs are re-

quired, thermostat operation is not permitted.

UNPACKING

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

1. Remove logs and heater base assembly from
carton.

Note:

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

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

3. Check all items for any shipping damage. If
damaged, promptly inform dealer where you
bought heater.

Do not pick up heater base as-

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 vent­free operation with flue damper closed. It has been
tested and approved to ANSI Z21.11.2 standard
for unvented heaters. State and local codes in some
areas prohibit the use of vent-free heaters. This
heater may also be operated as a vented decora­tive (ANSI Z21.60) product by opening the flue
damper (non-thermostat operation only).

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 fuel-burning appliances.

PROVIDING ADEQUATE
VENTILATION

The following are excerpts from National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air
for Combustion and Ventilation.

All spaces in homes fall into one of the three fol­lowing ventilation classifications:

1. Unusually Tight Construction

2. Unconfined Space

3. Confined Space

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

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AIR FOR COMBUSTION

AND VENTILATION

Continued

Unusually Tight Construction

The air that leaks around doors and windows may
provide enough fresh air for combustion and ven­tilation. However, in buildings of unusually tight
construction, you must provide additional fresh air.

Unusually tight construction is defined
as construction where:
a. walls and ceilings exposed to the out-

side atmosphere have a continuous
water vapor retarder with a rating of
one perm (6x10
less with openings gasketed or sealed

and

b. weather stripping has been added on

openable windows and doors

c. caulking or sealants are applied to ar-

eas 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
page 7

Ventilation Air From Outdoors

.

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

Fresh-Air Flow for Heater Location

Confined and Unconfined Space

National Fuel Gas Code, ANSI Z223.1/NFPA 54

defines a confined space as a space whose vol­ume is less than 50 cubic feet per 1,000 Btu per
hour (4.8 m3 per kw) of the aggregate input rating
of all appliances installed in that space and an un­confined space as a space whose volume is not
less than 50 cubic feet per 1,000 Btu per hour (4.8
m3 per kw) of the aggregate input rating of all ap­pliances installed in that space. Rooms communi­cating directly with the space in which the appli­ances are installed*, through openings not fur­nished with doors, are considered a part of the un­confined space.

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

-11

kg per pa-sec-m2) or

and

Determining

.

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
fireplace plus any adjoining rooms with doorless pas­sageways or ventilation grills between the rooms.

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

Length x Width x Height =__________cu. ft.
(volume of space)

Example:

(width) x 8 ft. (ceiling height) = 2,560 cu. ft. (vol­ume of space)

If additional ventilation to adjoining room is sup­plied with grills or openings, add the volume of
these rooms to the total volume of the space.

2. Multiply the space volume by 20 to determine
the maximum Btu/Hr the space can support.

__________ (volume of space) x 20 = (Maxi-

mum Btu/Hr the space can support)

Example:

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

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

Vent-free fireplace _________ Btu/Hr

,

Gas water heater* _________ Btu/Hr

Gas furnace _________ Btu/Hr

Vented gas heater _________ Btu/Hr

Gas fireplace logs _________ Btu/Hr

Other gas appliances* + ________ Btu/Hr

Total = ________ Btu/Hr

* Do not include direct-vent gas appliances. Di­rect-vent draws combustion air from the outdoors
and vents to the outdoors.

Example:

Gas water heater _____________ Btu/Hr

Vent-free fireplace _____________ Btu/Hr

Total _____________ Btu/Hr

4. Compare the maximum Btu/Hr the space can
support with the actual amount of Btu/Hr used.

________

________

Example:

Space size 20 ft. (length) x 16 ft.

2,560 cu. ft. (volume of space) x 20 =

40,000

+ 39,000

= 39,000

Btu/Hr (maximum the space can support)

Btu/Hr (actual amount of Btu/Hr used)

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

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

6

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AIR FOR COMBUSTION

AND VENTILATION

Continued

The space in the example is a confined space because
the actual Btu/Hr used is more than the maximum
Btu/Hr the space can support. You must provide ad­ditional fresh air. Your options are as follows:

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

ing room. If the extra space provides an uncon­fined space, remove door to adjoining room or add
ventilation grills between rooms. See Ventilation

Air From Inside Building.

B. Vent room directly to the outdoors. See Ventila-

tion Air From Outdoors.

C. Install a lower Btu/Hr fireplace, if lower Btu/Hr

size makes room unconfined.

If the actual Btu/Hr used is less than the maximum
Btu/Hr the space can support, the space is an un­confined space. You will need no additional fresh
air ventilation.

WARNING: If the area in
which the heater may be oper­ated is smaller than that defined
as an unconfined space or if the
building is of unusually tight
construction, provide adequate
combustion and ventilation air
by one of the methods described
in the

ANSI Z223.1/NFPA 54 Section

5.3

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

ventilation grills or ducts.

National Fuel Gas Code,

or applicable local codes

.

12"

Ventilation

Grills

Into Adjoining

Room,

Option 1

Or

Remove
Door into
Adjoining

Room,
Option

3

Ventilation Grills

Into Adjoining Room,

12"

Option 2

Figure 3 - Ventilation Air from Inside

Building

Ventilation Air From Outdoors

Provide extra fresh air by using ventilation grills
or ducts. You must provide two permanent open­ings: one within 12" of the ceiling and one within
12" of the floor. Connect these items directly to
the outdoors or spaces open to the outdoors. These
spaces include attics and crawl spaces. Follow the

National Fuel Gas Code, ANSI Z223.1/NFPA 54,
Section 5.3, Air for Combustion and Ventilation

for required size of ventilation grills or ducts.

IMPORTANT:

Do not provide openings for inlet
or outlet air into attic if attic has a thermostat-con­trolled power vent. Heated air entering the attic
will activate the power vent.

Ventilated
Attic

Crawl Space

Ventilated

To Attic

To

Crawl

Space

Outlet
Air

Inlet
Air

Outlet
Air

Inlet Air

Figure 4 - Ventilation Air from Outdoors

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INSTALLATION

NOTICE: This heater is intended
for use as supplemental heat.
Use this heater along with your
primary heating system. Do not
install this heater as your pri­mary heat source. If you have a
central heating system, you may
run system’s circulating blower
while using log heater. This will
help circulate the heat from your
log heater throughout the house.
In the event of a power outage,
you can use this heater as your
primary heat source.

WARNING: Never install the

heater

• in a bedroom or bathroom un­less installed as a vented ap­pliance (Variable Manually­Controlled Models Only) (see
page 12)

• in a recreational vehicle

• where curtains, furniture,
clothing, or other flammable
objects are less than 42 inches
from the front, top, or sides of
the heater

• in high traffic areas

• in windy or drafty areas

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 house. Inspect
chimney flue and firebox for dam­age. If damaged, repair flue and
firebox before operating heater.

WARNING: Seal any fresh
air vents or ash clean-out doors
located on floor or wall of fire­place. If not, drafting may cause
pilot outage or sooting. Use a
heat-resistant sealant. Do not
seal chimney flue damper.

CAUTION: This heater cre­ates warm air currents. These
currents move heat to wall sur­faces next to heater. Installing
heater next to vinyl or cloth wall
coverings or operating heater
where impurities (such as, but
not limited to, tobacco smoke,
aromatic candles, cleaning flu­ids, oil or kerosene lamps, etc.)
in the air exist, may discolor
walls or cause odors.

IMPORTANT:

the air. Although this is beneficial, installing heater
in rooms without enough ventilation air may cause
mildew to form from too much moisture. See Air
for Combustion and Ventilation, pages 5 through 7.

CHECK GAS TYPE

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

Vent-free heaters add moisture to

WARNING: This appliance
is equipped for (natural or pro­pane/LP) gas. Field conversion
is not permitted.

8

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INSTALLATION

Continued

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

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, UL127­listed manufactured fireplace, or certified vent-free
firebox.

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

A. Clearances from the side of the fireplace cabi-

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

Example:

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:

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.

Minimum Firebox

The face of a mantel, bookshelf,

When installing your gas logs into a

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,

Minimum Noncombustible Material
Clearances

If Not Using Mantel

Note:

If using a mantel, proceed to If Using Mantel,
page 10. If not using a mantel, follow the informa­tion below.

You must have noncombustible material(s) above
the fireplace opening. Noncombustible materials
(such as slate, marble, tile, etc.) must be at least 1/2
inch thick. With sheet metal, you must have non­combustible material behind it. Noncombustible
material must extend at least 8" up (for all models).
If noncombustible material is less than 12", you
must install the fireplace hood accessory (24" and
30" models only). See Figure 6, page 10 for mini­mum clearances.

IMPORTANT:

clearances, you must operate heater with chim­ney flue damper open. Go to Installing Damper
Clamp Accessory for Vented Operation, page 11.

If you cannot meet these minimum

page 11.

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INSTALLATION

Continued

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" 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 7, and Figure 8 on page 11 for
minimum clearances.

Noncombustible Requirements for
Material Safe Installation
Distance (A)

12" or more Noncombustible material

Between 8" 24", 30" or 36" Models:
and 12" Install fireplace hood

Less than 8" Noncombustible material

okay.

accessory (GA6050,
GA6052, or GA6053 see

Accessories,

18" Model: Noncombus­tible material okay.

must be extended to at
least 8". See

and 12",

cannot extend material,
you must operate heater
with flue damper open.

Heat Resistant
Material

page 43).

Between 8"

above. If you

(A)

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 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, page 11 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.

Mantel Shelf

1

"

/2

(A)

12"

18"8"20"

8"

14"

Distances to
Underside of
Mantel

22"

17"

Underside
of Mantel
Shelf

All minimum
distances
are in inches

Log Set

24"/30"

24"

Models

20"

18" Model

Top of Fireplace
Opening

Minimum
Noncombustible
Material

10"

8"

6"

2

Minimum
Noncombustible
Material Height

Figure 6 - Heat Resistant Material (Slate,

Marble, Tile, etc.) Above Fireplace

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 11.

10

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Figure 7 - Minimum Mantel Clearances

Without Using Hood

e

INSTALLATION

Continued

NOTICE: If your installation does
not meet the minimum clear­ances shown, you must do one
of the following:

• operate the logs only with the
flue damper open

• raise the mantel to an accept­able height

• remove the mantel

/2

"

8"

12" 15" 18"

Min.

Mantel Shelf

Distances to
Underside of
Mantel

Underside
of Mantel
Shelf

All minimum
distances are
in inches

Log Set

All

18", 24",

20"

30" Mod

Models

Top of
Fireplace
Opening

12"

10"

8"

6"

1

2

Minimum
Noncombustible
Material

Hood

(GA6050,

(GA6050,

GA6052, and

GA6052)

GA6053)

Figure 8 - Minimum Mantel Clearances

When Using Hood

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).

Hearth

5"
Min.

Combustible
Material

Figure 10 - Minimum Fireplace

Clearances Above Combustible Flooring

INSTALLING DAMPER CLAMP
ACCESSORY FOR VENTED
OPERATION

Note:

When used as a vented heater, appliance
must be installed only in a solid-fuel burning fire­place with a working flue and constructed of non­combustible material.

If your heater is a manually controlled model, you
may use this heater as a vented product. There are
three reasons for operating your heater in the
vented mode.

1. The fireplace does not meet the clearance to com-

bustibles 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 43). This will insure
vented operation (see Figure 11). The damper
clamp will keep damper open. Installation instruc­tions are included with clamp accessory.

Damper
Clamp

Damper

Damper
Clamp

Damper

Combustible
Material

14"
Min.

Noncombustible
Material

Figure 9 - Minimum Fireplace Clearances

if Installed at Floor Level

111160-01C 11

www.desatech.com

Masonry

Fireplace

Figure 11 - Attaching Damper Clamp

Damper

Manufactured

Fireplace

INSTALLATION

Continued

See chart below for minimum permanent flue
opening you must provide. Attach damper clamp
so the minimum permanent flue opening will be
maintained at all times.

Chimney Minimum Permanent

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

6' to 15' 39 sq. inches

15' to 30' 29 sq. inches

Area of Various Standard

Round Flues

Diameter (in.) Area (sq. in.)

5" 20 sq. inches
6" 29 sq. inches
7" 39 sq. inches
8" 51 sq. inches

INSTALLING HEATER BASE
ASSEMBLY

CAUTION: Do not remove
the data plates attached to the
heater base assembly. The data
plates contain important war­ranty and safety information.

WARNING: You must secure
this heater to fireplace floor. If
not, heater will move when you
adjust controls. Moving heater
may cause a gas leak.

WARNING: If installing in a
sunken fireplace, special care is
needed. You must raise the fire­place floor to allow access to
heater control panel. This will in­sure adequate air flow and guard
against sooting and controls be­ing damaged. Raise fireplace floor
with noncombustible material.
Make sure material is secure.

CAUTION: Do not pick up
heater base assembly by the
burner. This could damage
heater. Only handle base assem­bly by grates.

IMPORTANT:

level. If heater is not level, heater will not work
properly. For thermostat models, avoid damage to
thermostat bulb. Avoid nicks or sharp bends in
thermostat bulb wire. Keep thermostat bulb in
mounting bracket until ready to mount base to
floor. See Optional Positioning Of Thermostat
Sensing Bulb, pages 29 and 30.

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 fireplace.

4. Place logs in their proper position on heater base,

see Installing Logs on pages 16 through 19.

5. Center heater base and logs front-to-back and

side-to-side in fireplace.

6. Carefully remove logs without moving heater

base.

Flexible Gas Hose
(if allowed by local codes)

Figure 12 - Attaching Flexible Gas Hose

Make sure the heater burners are

Hold gas regulator with

Heater Gas
Regulator

Fitting

to Heater Gas Regulator

12

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INSTALLATION

Continued

7. Mark screw locations through holes in mount­ing brackets (see Figure 13 and 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 Figure 13 or 14).

Masonry
Screw

CONNECTING TO GAS SUPPLY

WARNING: This appliance
requires a 1/2" NPT (National
Pipe Thread) inlet connection to
the pressure regulator.

WARNING: A qualified ser­vice person must connect
heater to gas supply. Follow all
local codes.

CAUTION: Never connect
heater directly to the propane/
LP supply. This heater requires
an external regulator (not sup­plied). Install the external regu­lator between the heater and
propane/LP supply.

Mounting
Bracket

Figure 13 - Attaching Base Assembly to

Fireplace Floor - Dual Burner Model

Masonry
Screw

Mounting
Bracket

Figure 14 - Attaching Base Assembly to

Fireplace Floor - Single Burner Model

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

Installation Items Needed

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

• external regulator (supplied by installer)

• piping (check local codes)

• sealant (resistant to propane/LP gas)

• equipment shutoff valve *

• test gauge connection *

• sediment trap

• tee joint

• pipe wrench

* A CSA design-certified equipment shutoff valve
with 1/8" NPT tap is an acceptable alternative to
test gauge connection. Purchase the optional CSA
design-certified equipment shutoff valve from your
dealer. See Accessories, page 43.

111160-01C 13

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INSTALLATION

Continued

For propane/LP units, the installer must supply an
external regulator. The external regulator will re­duce incoming gas pressure. You must reduce in­coming gas pressure to between 11 and 14 inches
of water. If you do not reduce incoming gas pres­sure, heater regulator damage could occur. Install
external regulator with the vent pointing down as
shown in Figure 15. Pointing the vent down pro­tects it from freezing rain or sleet.

CAUTION: Use only new,
black iron or steel pipe. Inter­nally-tinned copper tubing may
be used in certain areas. Check
your local codes. Use pipe of 1/2"
diameter or greater to allow
proper gas volume to heater. If
pipe is too small, undue loss of
volume will occur.

Installation 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 16).

IMPORTANT:

sible location. The equipment shutoff valve is for
turning on or shutting off the gas to the appliance.

Check your building codes for any special re­quirements for locating equipment shutoff valve
to fireplaces.

Apply pipe joint sealant lightly to male NPT
threads. This will prevent excess sealant from go­ing into pipe. Excess sealant in pipe could result
in clogged heater valves.

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

Propane/LP
Supply Tank

Vent
Pointing
Down

Figure 15 - External Regulator With Vent

Install equipment valve in an acces-

WARNING: Use pipe joint

External
Regulator

Pointing Down

We recommend that you install a sediment trap in
supply line as shown in Figure 16. Locate sediment
trap where it is within reach for cleaning. Install in
piping system between fuel supply and heater. Lo­cate sediment trap where trapped matter is not likely
to freeze. A sediment trap traps moisture and con­taminants. This keeps them from going into heater
controls. If sediment trap is not installed or is in­stalled wrong, heater may not run properly.

CAUTION: Avoid damage to
regulator. Hold gas regulator
with wrench when connecting it
to gas piping and/or fittings.

PROPANE/LP

From External
Regulator (11" W.C.**
to 14" W.C. Pressure)

NATURAL

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

10.5" W.C.
Pressure)

Tee Pipe Cap
Joint Nipple

Sediment Trap

Figure 16 - Gas Connection

* Purchase the optional CSA design-certified equip­ment shutoff valve from your dealer. See Accesso-
ries, page 43.

** Minimum inlet pressure for purpose of input
adjustment.

CSA Design­Certified Equipment
Shutoff Valve With
1/8" NPT Tap*

Gas
Regulator

3" Minimum

Approved Flexible
Gas Hose (if allowed
by local codes)

CHECKING GAS CONNECTIONS

WARNING: Test all gas pip­ing and connections, internal
and external to unit, for leaks
after installing or servicing. Cor­rect all leaks at once.

WARNING: Never use an open
flame to check for a leak. Apply a
noncorrosive leak detection fluid
to all joints. Bubbles forming show
a leak. Correct all leaks at once.

14

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INSTALLATION

ON

POSITION

OFF

POSITION

Continued

CAUTION: Make sure exter­nal regulator has been installed
between propane/LP supply and
heater. See guidelines under

necting to Gas Supply

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 by either opening
propane/LP supply tank valve for propane/LP
gas or opening main gas valve located on or
near gas meter for natural gas, or using com­pressed air.

4. Check all joints of gas supply piping system.
Apply a noncorrosive leak detection fluid to
all joints. Bubbles forming show a leak.

5. Correct all leaks at once.

6. Reconnect heater and equipment shutoff
valve to gas supply. Check reconnected fit­tings for leaks.

Test Pressures Equal To or Less Than 1/2 PSIG
(3.5 kPa)

1. Close equipment shutoff valve (see Figure 17).

2. Pressurize supply piping system by either
opening propane/LP supply tank valve for
propane/LP gas or opening main gas valve lo­cated on or near gas meter for natural gas, or
using compressed air.

3. Check all joints from gas meter to equipment
shutoff valve for natural gas or propane/LP sup­ply to equipment shutoff valve for propane/LP
(see Figures 18 and 19). Apply noncorrosive
leak detection fluid to all joints. Bubbles form­ing show a leak.

4. Correct all leaks at once.

Pressure Testing Heater Gas Connections

1. Open equipment shutoff valve (see Figure 17).

2. Open main gas valve located on or near gas
meter for natural gas or open propane/LP sup­ply tank valve.

Con-

, page 14.

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

4. Check all joints from equipment shutoff valve
to thermostat gas valve (Thermostat-Con­trolled Models), to control valve (Manually­Controlled Models), or to gas control (Re­mote-Ready Models) (see Figures 18 and 19).
Apply noncorrosive leak detection fluid to all
joints. Bubbles forming show a leak.

5. Correct all leaks at once.

6. Light heater (see Operating Heater, pages 20
and 21 [manually-controlled models] or pages
22 and 23 [thermostatically-controlled mod­els]). Check all other internal joints for leaks.

7. Turn off heater (see To Turn Off Gas to Appli-
ance, page 21 [manually-controlled models] or
page 23 [thermostatically-controlled models]).

Equipment
Shutoff

Open

Valve

Closed

Figure 17 - Equipment Shutoff Valve

Propane/LP
Supply Tank

Equipment
Shutoff Valve

Thermostat Gas Valve or
Control Valve Location

Figure 18 - Checking Gas Joints

(Propane/LP Gas Models)

Equipment
Shutoff Valve

Gas Meter

Thermostat Gas Valve or
Control Valve Location

Figure 19 - Checking Gas Joints (Natural

Gas Models)

111160-01C 15

www.desatech.com

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 HI, 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.

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.

Back Log

Pin

Hole in
Grate Base

Figure 20 - Installing Back Log (#1)

Tab

Burner

(#1)

Middle
Log (#2)

Burner

Cutout

“U” Bend

Dual Burner Smoky Mountain Oak
Models CGD3018PT/NT, CGD3924PT/NT

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 pins on the bottom of back log (#1).
Slide these pins into the holes in the grate base
behind the burner (see Figure 20).

2. Place the base of the middle log (#2) in the U­shaped 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 21).
Make sure the front of the middle log is resting
on the tabs of the grate base and the cutout area
is centered over the burner “U” bend.

3. Locate the recesses on the back of the front
log (#3). Fit these recesses between the posts
of the grate base (see Figure 22).

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 23).

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

16

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U-Shaped Slot

Figure 21 - Installing Middle Log (#2)

Recess

Front
Log (#3)

3

Post

Figure 22 - Installing Front Log (#3)

Notches

Rectangular
Knobs

Figure 23 - Installing Crossover Log (#4)

Crossover
Log (#4)

INSTALLATION

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.

Dual Burner Biltmore Split Oak Models
CCL3018PTA/NTA, CCL3924PTA/NTA,
CCL3930PTB/NTB

Each log is marked with a number. These num­bers will help you identify the log when install­ing. It is very important to install these logs ex­actly as instructed. Do not modify logs. Only use
logs supplied with heater.

1. Place the front log (#1) on the grate fingers.
Make sure the front log rests firmly between the
grate fingers and the grate base (see Figure 24).

2. Place the base of the middle log (#2) in the U­shaped slots of the grate base. The cutout on the
right of the middle log should fit over the burner
(see Figure 25). Make sure the front of the middle
log is resting on the tabs of the grate base.

3. Locate pins on the bottom of back log (#3).
Slide these pins into the holes in the grate base
behind the burner (see Figure 26).

4. Locate holes on the bottom of crossover log
(#4). Slide front hole onto the left pin
(CCL3924PTA/NTA or CCL3930PTB/NTB)
or middle pin (CCL3018PA/NA or
CCL3018PTA/NTA) on the middle log (#2)
and the pin on the back log (#3). See Figure
27 for placement.

Front
Log (#1)

Middle
Log (#2)

Tab

Figure 25 - Installing Middle Log #2

(CCL3930PTB/NTB Shown)

Figure 26 - Installing Rear Log #3

(CCL3930PTB/NTB Shown)

Pins

Middle
Log (#2)

U-Shaped Slot

Pins

Crossover
Log (#4)

Back Log
(#3)

Burner

Rear
Log (#3)

Hole in
Grate Base

Burner

Grate
Fingers

Figure 27 - Installing Crossover Log #4

(CCL3930PTB/NTB Shown)

Grate
Base

Figure 24 - Installing Front Log #1

(CCL3930PTB/NTB Shown)

111160-01C 17

www.desatech.com

INSTALLATION

Continued

5. For CCL3924PTA/NTA and CCL3930PTB/NTB

Only:

Locate pin and hole on the bottom of
crossover log (#5). Slide the pin into the hole
located in crossover log (#4). Slide the hole onto
the pin on front log (#1). See Figure 28.

For CCL3018PA/NA and CCL3018PTA/NTA
Only:

Locate holes on the bottom of crossover
log (#5). Slide the holes over the left pins on
middle log (#2) and front log (#1). See Figure 29.

6. Locate holes on the bottom of crossover log
(#6). Slide these holes onto the right pins lo­cated in middle log (#2) and front log (#1).
See Figure 30 for CCL3924PTA/NTA or
CCL3930PTB/NTB. See Figure 29 for
CCL3018PA/NA or CCL3018PTA/NTA.

7. For CCL3930PTB/NTB only: Locate holes on
the bottom of crossover log (#7). Slide onto
the pins located in crossover log (#6) and
middle log (#2). See Figure 31.

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

Crossover
Log (#5)

Crossover
Log (#4)

Crossover
Log (#6)

Crossover
Log (#5)

Middle
Log (#2)

Front
Log (#1)

Crossover
Log (#4)

Figure 29 - Installing Crossover Log #5

and Log #6 (CCL3018PA/NA and

CCL3018PTA/NTA Only)

Crossover
Log (#6)

6

Pins

Middle

Log (#1)

Log (#2)Front

Front Log (#1)

Figure 28 - Installing Crossover Log #5

(CCL3930PTB/NTB Shown)

18

www.desatech.com 111160-01C

Figure 30 - Installing Crossover Log #6

(CCL3930PTB/NTB Shown)

Holes

Pins

Crossover
Log (#7)

7

Middle
Log (#2)

Crossover
Log (#6)

Figure 31 - Installing Crossover Log #7

(Model CCL3930PTB/NTB Only)

INSTALLATION

Continued

Single Burner Seasonal Oak Models
CRL2718P/N, CRL2718P/N

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.

The Seasonal Oak Log Set is a reversible log set.
This means that the two bottom logs may be turned
to face either direction. The top log, however, must
remain in the same position. Do not modify logs.
Only use logs supplied with heater.

1. Place the back log onto the back of the base
assembly. Make sure log sits forward against
the two posts in front of log (see Figure 32).
This log may be turned to face either direction.

2. Place front log onto grate on front of base as­sembly. The log will fit down between grate
fingers and posts on front of base assembly
(see Figure 33). This log may be turned to face
either direction.

3. Place the crossover log on top of the back log
and front log making sure pins are inserted into
holes on top of logs 1 and 2 (see Figure 34).
This log must be placed as shown in Figure 34
or the pins will not seat into holes.

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

Back Log

Base
Assembly

Post

Front Log

Post

Grate
Fingers

Base
Assembly

Figure 33 - Installing Front Log

Crossover Log

Hole in
Front Log

Figure 34 - Installing Crossover Log

Post

Hole in
Back Log

Post

Figure 32 - Installing Back Log

111160-01C 19

www.desatech.com

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 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. Make
sure there are no obstructions
across openings of fireplace.

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

NOTICE: During initial operation
of new heater, burning logs will
give off a paper-burning smell.
Orange flame will also be
present. Open damper or win­dow to vent smell. This will only
last a few hours.

Note:

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

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

1. STOP! Read the safety information in col­umn 1.

2. Make sure equipment shutoff valve is fully
open.

3. Press in and turn control knob clockwise

4. Wait five (5) minutes to clear out any gas.

to the OFF position.

Then smell for gas, including near the floor.
If you smell gas, STOP! Follow “B” in the
safety information, column 1. If you don’t
smell gas, go to the next step.

20

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OPERATING HEATER

Continued

5. Slightly depress and turn control knob
counterclockwise to the PILOT po­sition. Press in control knob for five (5) sec­onds (see Figure 35).

Note:

You may be running this heater for
the first time after hooking up to gas sup­ply. If so, the control knob may need to be
pressed in for 30 seconds or more. This will
allow air to bleed from the gas system.

6. With control knob pressed in, press and re­lease ignitor button. This will light pilot.
The pilot is attached to the burner. If
needed, keep pressing ignitor button until
pilot lights.

Note:

If pilot does not stay lit, contact a
qualified service person or gas supplier for
repairs. Until repairs are made, light pilot
with match. To light pilot with match, see
Manual Lighting Procedure.

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 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 HI
positions.

HI

PILOT

OFF

LO

Ignitor Button

Figure 35 - Control Knob and Ignitor

Control Knob

Button Location

Ignitor
Electrode

Pilot Burner

Thermocouple

Figure 36 - Pilot

VARIABLE CONTROL

OPERATION

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

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

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Heater

1. Press in and turn control knob clockwise

2. Turn control knob clockwise to the

3. Press in control knob and turn clockwise

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

1. Turn control knob clockwise to the

2. Press in and turn control knob clockwise

1. Follow steps 1 through 5 under Lighting In-

2. Depress control knob and light pilot with

3. Keep control knob pressed in for 30 sec-

to the HI position.

pilot position.

to the OFF position.

HI position.

to the pilot position.

MANUAL LIGHTING

PROCEDURE

structions, pages 20 and 21.

match.

onds after lighting pilot. After 30 seconds,
release control knob. Now follow step 8,
under Lighting Instructions, column 1.

111160-01C 21

www.desatech.com

OPERATING HEATER

Continued

LIGHTING

INSTRUCTIONS

THERMOSTAT-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 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.

WARNING

• If fireplace has glass doors,
never operate this heater with
glass doors closed. If you op­erate heater with doors closed,
heat buildup inside fireplace
will cause glass to burst. Make
sure there are no obstructions
across openings of fireplace.

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

NOTICE: During initial operation
of new heater, burning logs will
give off a paper-burning smell.
Orange flame will also be
present. Open damper or win­dow to vent smell. This will only
last a few hours.

Note:

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

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

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

2. Make sure equipment shutoff valve is fully
open.

3. Turn control knob clockwise to the
OFF position.

4. Wait five (5) minutes to clear out any gas.
Then smell for gas, including near the floor.
If you smell gas, STOP! Follow “B” in the
safety information, column 1. If you don’t
smell gas, go to the next step.

22

www.desatech.com 111160-01C

OPERATING HEATER

Continued

5. Turn control knob counterclockwise
to the PILOT position. Press in control knob
for five (5) seconds (see Figure 37).

Note:

You may be running this heater for
the first time after hooking up to gas sup­ply. If so, the control knob may need to be
pressed in for 30 seconds or more. This will
allow air to bleed from the gas system.

• If control knob does not pop out when re-

leased, 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.

7. Keep control knob pressed in for 30 sec­onds after lighting pilot. After 30 seconds,
release control knob.

Note:

If pilot goes out, repeat steps 3
through 7. This heater has a safety inter­lock system. Wait one (1) minute for sys­tem to reset before lighting pilot again.

8. Turn control knob counterclockwise
to desired heating level. The burn-

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

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Heater

Turn control knob clockwise to the OFF
position.

Shutting Off Burners Only (pilot stays lit)

Turn control knob clockwise to the PI­LOT position.

THERMOSTAT

CONTROL OPERATION

The thermostat control knob can be set to any
comfort level between HI and LO. The 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 22 and 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,
under Lighting Instructions, column 1.

HI

FF

L

O

O

P
ilo

t

Ignitor Button

Control Knob

Figure 37 - Control Knob and Ignitor

Button Location

Ignitor
Electrode

Pilot Burner

Thermocouple

Figure 38 - Pilot

111160-01C 23

www.desatech.com

INSPECTING BURNERS

Check pilot flame pattern and burner flame pat­terns often.

PILOT FLAME PATTERN

Figure 39 shows a correct pilot flame pattern. Figure
40 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 40

• turn heater off (see To Turn Off Gas to Appli-
ance, page 21 [manually-controlled models] or
page 23 [thermostat-controlled models])

• see Troubleshooting, pages 26 through 28

Note:

The pilot flame on natural gas units will
have a slight curve, but flame should be blue and
have no yellow or orange color.

Pilot Burner

Thermocouple

Figure 39 - Correct Pilot Flame Pattern

Pilot Burner

Thermocouple

Figure 40 - Incorrect Pilot Flame Pattern

BURNER PRIMARY AIR HOLES

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

MAIN BURNER

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

CLEANING AND

MAINTENANCE

WARNING: Turn off heater

and let cool before cleaning.

CAUTION: You must keep
control areas, burner, and cir­culating air passageways of
heater clean. Inspect these ar­eas of heater before each use.
Have heater inspected yearly by
a qualified service person.
Heater may need more frequent
cleaning due to excessive lint
from carpeting, bedding mate­rial, pet hair, etc.

WARNING: Failure to keep
the primary air opening(s) of the
burner(s) clean may result in
sooting and property damage.

BURNER 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 41, page 25).

24

www.desatech.com 111160-01C

CLEANING AND

MAINTENANCE

Continued

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 on
page 24.

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 42). 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 41 - Injector Holder On Outlet

Burner Tube

Burner Tube

Injector
Holder

Ports/Slots

LOGS

• If you remove logs for cleaning, refer to In­stalling Logs, pages 16 through 19, to properly

replace logs.

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

MAIN BURNER

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

SERVICE HINTS

When Gas Pressure Is Too Low

• pilot will not stay lit

• burners will have delayed ignition

• heater will not produce specified heat

• for propane/LP units, propane/LP gas supply
may be low

You may feel your gas pressure is too low. If so,
contact your local propane/LP or natural gas sup­plier.

TECHNICAL SERVICE

You may have further questions about installation,
operation, or troubleshooting. If so, contact DESA
Heating Products’ Technical Service Department
at 1-866-672-6040. When calling please have your
model and serial numbers of your heater ready.

You can also visit DESA Heating Products’ tech­nical service web site at www.desatech.com.

Pilot Assembly

Pilot Air
Inlet Hole

Figure 42 - Pilot Inlet Air Hole

111160-01C 25

www.desatech.com

Note:

TROUBLESHOOTING

All troubleshooting items are listed in order of operation.

WARNING: Turn off heater and let cool before servicing. Only a

qualified service person should service and repair heater.

CAUTION: Never use a wire, needle, or similar object to clean

ODS/pilot. This can damage ODS/pilot unit.

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

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

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. Depleted gas supply (propane/
LP only)

6. ODS/pilot is clogged

7. Gas regulator setting is not correct

1. Control knob not fully pressed in

2. Control knob not pressed in
long enough

3. Equipment shutoff valve not
fully open

4. Pilot flame not touching ther­mocouple, which allows ther­mocouple to cool, 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

5. Thermocouple connection
loose at control valve

6. Thermocouple damaged

7. Control valve damaged

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 pilot assembly

7. Replace pilot assembly

1. Turn on gas supply or open
equipment shutoff valve

2. Turn control knob to PILOT
position

3. Press in control knob while in
PILOT position

4. Continue holding down con­trol knob. Repeat igniting op­eration until air is removed

5. Contact local propane/LP gas
company

6. Clean ODS/pilot (see Clean-
ing and Maintenance, pages
24 and 25) or replace ODS/
pilot assembly

7. Replace gas regulator

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 propane/LP
or natural gas company

B) Clean ODS/pilot (see
Cleaning and Maintenance,
pages 24 and 25) or replace
ODS/pilot assembly

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

6. Replace pilot assembly

7. Replace control valve

26

www.desatech.com 111160-01C

OBSERVED PROBLEM

Burner does light after ODS/
pilot is lit

TROUBLESHOOTING

Continued

POSSIBLE CAUSE

1. Burner orifice clogged

2. Inlet gas pressure is too low

REMEDY

1. Clean burner (see Cleaning and
Maintenance, pages 24 and 25)

or replace burner orifice

2. Contact local propane/LP or
natural gas company

Delayed ignition of 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

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 or
position 5 when burner is cold

2. Air in gas line

3. Air passageways on heater
blocked

4. Dirty or partially clogged
burner orifice

1. Contact local propane/LP or
natural gas company

2. Clean burner (see Cleaning and
Maintenance, pages 24 and 25)
or replace burner orifice

1. Clean burner (see Cleaning and
Maintenance, pages 24 and 25)
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,
pages 24 and 25)

2. Replace gas regulator

3. Problem will stop after a few
hours of operation

1. Refer to Air for Combustion
and Ventilation requirements
(page 5)

1.

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

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

3. Observe minimum installa­tion clearances (see pages 9
through 12)

4. Clean burner (see Cleaning and
Maintenance, pages 24 and 25)
or replace burner orifice

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

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

111160-01C 27

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

1. Metal expanding while heating
or contracting while cooling

www.desatech.com

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

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

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:

paint, paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc., create fumes.
These fumes may mix with combustion air and create odors. These odors will disappear over time.

OBSERVED PROBLEM

Heater produces unwanted
odors

Heater shuts off in use
(ODS operates) temperature
drops to a lower than ideal level
before log set comes back on

Gas odor even when control
knob is in OFF position

Gas odor during combustion

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

POSSIBLE CAUSE

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

IMPORTANT

2. Gas leak. See Warning
statement above

1. Not enough fresh air is available

2. Low line pressure

3. ODS/pilot is partially clogged

1. Gas leak. See Warning

statement above

2. Control valve defective

1. Foreign matter between con­trol valve and burner

2. Gas leak. See Warning

statement above

statement above)

REMEDY

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

2. Locate and correct all leaks
(see Checking Gas Connec-
tions, pages 14 and 15)

1. Open window and/or door for
ventilation

2. Contact local propane/LP or
natural gas company

3. Clean ODS/pilot (see Clean-
ing and Maintenance, pages
24 and 25)

1. Locate and correct all leaks
(see Checking Gas Connec-
tions, pages 14 and 15)

2. Replace control valve

1. Take apart gas tubing and re­move foreign matter

2. Locate and correct all leaks
(see Checking Gas Connec-
tions, pages 14 and 15)

Logs set cycles to pilot, but room

28

1. Thermostat sensing bulb needs
to be repositioned

www.desatech.com 111160-01C

1. Reposition thermostat sensing
bulb (see Optional Positioning

of Thermostat Sensing Bulb,

beginning on page 29

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 43).

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 45).

Note:

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

IMPORTANT:

mostat 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 4. If you have a masonry fire­place, see Figure 46 for location. If you have a
factory-built metal fireplace, see Figure 47 for
location. If your fireplace has glass doors, posi­tion sensing bulb directly behind door gap on
right bottom side (see Figure 48).

Do not force or bend the ther-

Figure 44 - Adhesive-backed Mounting Clip

Capillary

Retaining
Clamp

Thermostat
Screw

Thermostat
Sensing
Bulb

Figure 45 - Removing Thermostat

Sensing Bulb

Thermostat
Sensing Bulb

Adhesive-backed
Mounting Clip

Figure 46- Locating Thermostat Sensing

Bulb on Masonry Fireplace

Thermostat
Sensing Bulb

Adhesive­backed
Mounting Clip

Gas Valve
Assembly

Mounting
Bracket

Figure 43 - Location of Gas Valve

Thermostat
Sensing
Bulb

Figure 47 - Locating Thermostat Sensing

Bulb on Factory-built Metal Fireplace

Thermostat
Sensing Bulb

Adhesive-backed
Mounting Clip

Glass Doors

Assembly and Thermostat Sensing Bulb

Figure 48 - Installing Thermostat

Sensing Bulb Behind Glass Doors

111160-01C 29

www.desatech.com

OPTIONAL POSITIONING

OF THERMOSTAT

SENSING BULB

Continued

4. The mounting clip must be a minimum of 3"
from bottom of fireplace to prevent crimping
of capillary. Once you have decided on a lo­cation, clean the area thoroughly. Remove the
paper backing from the adhesive on back of
mounting clip. Press the clip into the new lo­cation so that the thermostat sensing bulb will
be positioned vertically with the capillary at
the bottom (see Figure 49). Slide the thermo­stat sensing bulb into the clip.

IMPORTANT:

Thermostat
Sensing Bulb

Adhesive-backed
Mounting Clip

Capillary

Figure 49 - Positioning the Thermostat

Sensing Bulb in the Vertical Position

with the Capillary at the Bottom

Do not crimp capillary.

Do Not Crimp

Capillary

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 42) or call DESA
Heating Products’ Technical Service Department at
1-866-672-6040 for referral information.

When calling DESA Heating Products, have ready

• your name

• your address

• model and serial numbers of your heater

• how heater was malfunctioning

• type of gas used (propane/LP or natural gas)

• purchase date

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

PARTS NOT UNDER WARRANTY

Contact authorized dealers of this product. If they can’t
supply original replacement part(s), contact your near­est Parts Central (see page 42) or call DESA Heating
Products at 1-866-672-6040 for referral information.

When calling DESA Heating Products, have ready

• model number of your heater

• the replacement part number

30

www.desatech.com 111160-01C

SPECIFICATIONS

DUAL BURNER SMOKY MOUNTAIN OAK MODELS

Btu (Variable) 16,000/30,000 16,000/30,000 20,000/39,000 20,000/39,000

Type Gas Propane/LP Natural Propane/LP Natural

Ignition Piezo Piezo

Manifold Pressure 8.0" W.C. 3.5" W.C. 8.0" W.C. 3.5" W.C.

Inlet Gas Pressure (in. of water)

Maximum 14" 10.5" 14" 10.5"

Minimum* 11" 5" 11" 5"

Shipping Weight 36 lbs. 36 lbs. 38 lbs. 38 lbs.

* For the purpose of input adjustment

Btu (Variable) 16,000/30,000 20,000/39,000 20,000/39,000

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

Ignition Piezo Piezo Piezo

Manifold Pressure 3.5" W.C./8.0" W.C. 3.5" W.C./8.0" W.C. 3.5" W.C./8.0" W.C.

Inlet Gas Pressure (in. of water)

Maximum 10.5"/14" 10.5"/14" 10.5"/14"

Minimum* 5"/11" 5"/11" 5"/11"

Shipping Weight 61 lbs. 66 lbs. 70 lbs.

* For the purpose of input adjustment

CGD3018PT CGD3018NT CGD3924PT CGD3924NT

DUAL BURNER BILTMORE SPLIT OAK MODELS

CCL3018NTA CCL3924NTA CCL3930NTB
CCL3018PTA CCL3924PTA CCL3930PTB

SINGLE BURNER SEASONAL OAK MODELS

Btu (Variable) 16,000/27,500 16,000/27,500 16,000/31,500 16,000/31,500

Type Gas Natural Propane/LP Natural Propane/LP

Ignition Piezo Piezo Piezo Piezo

Manifold Pressure 3.5" W.C. 8.0" W.C. 3.5" W.C. 8.0" W.C.

Inlet Gas Pressure (in. of water)

Maximum 10.5" 14" 10.5" 14"
Minimum* 5" 11" 5" 11"

Shipping Weight 49 lbs. 49 lbs. 53 lbs. 53 lbs.

* For the purpose of input adjustment

111160-01C 31

CRL2718N CRL2718P CRL3124N CRL3124P

www.desatech.com

ILLUSTRATED PARTS BREAKDOWN

VARIABLE MANUALLY-CONTROLLED BILTMORE SPLIT OAK
MODELS CCL3018PA, CCL3018NA, CCL3924PA AND CCL3924NA

1

4

5

2

6

20

12

11

24

17

18

13

7

21

14

19

15

16

23

19

10

8

21

18

22

21

9

3

32

www.desatech.com 111160-01C

PARTS LIST

VARIABLE MANUALLY-CONTROLLED BILTMORE SPLIT OAK MODELS

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions
listed under Replacement Parts on page 30 of this manual.

KEY PART NUMBER
NO. CCL3018PA CCL3018NA CCL3924PA CCL3924NA DESCRIPTION QTY.

1 111342-03 111342-03 111342-02 111342-02 Back Log (#1) 1
2 111341-03 111341-03 111341-02 111341-02 Middle Log (#2) 1
3 111340-03 111340-03 111340-02 111340-02 Front Log (#3) 1
4 111343-03 111343-03 111343-02 111343-02 Left Back

5 111344-02 111344-02 111344-01 111344-01 Left Top

6 111345-02 111345-02 111345-02 111345-02 Right Bottom

7 102844-02 102844-02 102844-01 102844-01 Lower Bracket 1
8 098867-10 098867-14 098867-10 098867-14 Gas Regulator 1
9 102798-01 102798-01 102798-01 102798-01 Inlet Tube 1
10 102779-04 102779-03 102779-02 102779-01 Outlet Burner Tube 1
11 099056-19 099056-26 099056-17 099056-16 Burner Orifice Injector 1
12 111124-01 111124-01 111124-01 111124-01 Burner Retainer Spring 1
13 102980-01 102980-01 102772-01 102772-01 Burner 1
14 102568-08 102568-07 102568-06 102568-05 Control Valve 1
15 098508-01 098508-01 098508-01 098508-01 Valve Retainer Nut 1
16 098354-01 098354-01 098354-01 098354-01 Control Knob 1
17 102445-01 102445-01 102445-01 102445-01 Piezo Ignitor 1
18 099387-08 099387-08 099387-08 099387-08 Pilot Tube 1
19 098271-10 098271-10 098271-10 098271-10 Ignitor Cable 1
20 104286-01 104285-01 104286-01 104285-01 ODS Pilot 1
21 M11084-38 M11084-38 M11084-38 M11084-38 Hex Screw, #8-18 x .38 8
22 098276-01 098276-01 098276-01 098276-01 Hex Head Plug, 1/8 NPT 1
23 098249-01 098249-01 098249-01 098249-01 Nut, M5 2
24

** ** ** **

PARTS AVAILABLE — NOT SHOWN

100563-01 100563-01 100563-01 100563-01 Warning Plate 1
101055-02 101055-02 101055-02 101055-02

100565-01 100565-01 100565-01 100565-01 Warning Plate Fastener 1
100639-01 100639-01 100639-01 100639-01 Caution Decal 1
101449-04 101449-04 101449-04 101449-04 Control Position Decal 1
101137-02 101137-02 101137-02 101137-02 Hardware Kit 1
GA6060 GA6060 GA6060 GA6060 Lava Rock 1

** Not a field replaceable part.

Crossover Log (#4) 1

Crossover Log (#5) 1

Crossover Log (#6) 1

Painted Base Assembly 1

Lighting Instructions
Plate 1

111160-01C 33

www.desatech.com

ILLUSTRATED PARTS BREAKDOWN

THERMOSTATICALLY-CONTROLLED SMOKY MOUNTAIN OAK
MODELS CGD3018PT, CGD3018NT, CGD3924PT AND CGD3924NT

1

4

3

20

12

11

18

13

6

21

22

19

9

21

2

10

7

14

8

15

21

16

5

19

17

21

34

www.desatech.com 111160-01C

PARTS LIST

THERMOSTATICALLY-CONTROLLED SMOKY MOUNTAIN OAK
MODELS

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions
listed under Replacement Parts on page 30 of this manual.

KEY PART NUMBER

NO. CGD3018PT CGD3018NT CGD3924PT CGD3924NT DESCRIPTION QTY.

1 103008-02 103008-02 110346-03 110346-03 Back Log (#1) 1
2 103009-02 103009-02 110346-02 110346-02 Middle Log (#2) 1
3 103010-02 103010-02 110346-01 110346-01 Front Log (#3) 1
4 103011-02 103011-02 110346-04 110346-04 Crossover Log (#4) 1
5

102775-09CK 102775-09CK 102775-05CK 102775-05CK
6 102844-02 102844-02 102844-01 102844-01 Lower Bracket 1
7 099211-01 099211-01 099211-01 099211-01 Hex Screw, 10-16 x 2.50 2
8 098867-10 098867-14 098867-10 098867-14 Gas Regulator 1
9 102810-03 102810-03 102810-03 102810-03 Inlet Tube 1
10 102983-05 102983-05 102983-05 102983-05 Outlet Burner Tube 1
11 099056-19 099056-26 099056-17 099056-16 Burner Orifice Injector 1
12 111124-01 111124-01 111124-01 111124-01
13 102980-01 102980-01 102772-01 102772-01 Burner 1
14 101329-22 101329-21 101329-19 101329-20 Thermostat Gas

15 102979-02 102979-02 102979-01 102979-01 Thermostat Bracket 1
16 098544-01 098544-01 098544-01 098544-01 Thermobulb Clip 1
17 102445-01 102445-01 102445-01 102445-01 Piezo Ignitor 1
18 099387-09 099387-09 099387-09 099387-09 Pilot Tube 1
19 098271-10 098271-10 098271-10 098271-10 Ignitor Cable 1
20 104286-01 104285-01 104286-01 104285-01 ODS Pilot 1
21 M11084-38 M11084-38 M11084-38 M11084-38 Hex Screw, #8-18 x .38 12
22 098249-01 098249-01 098249-01 098249-01 Nut, M5 2

PARTS AVAILABLE — NOT SHOWN

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

101054-01 101054-01 101054-01 101054-01 Lighting Instructions Plate 1

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

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

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

GA6060 GA6060 GA6060 GA6060 Lava Rock 1

102030-01 102030-01 102030-01 102030-01 Clip, Thermostat 1

Painted Base Assembly 1

Burner Retainer Spring

Valve Assembly 1

Warning Plate Fastener

1

1

111160-01C 35

www.desatech.com

ILLUSTRATED PARTS BREAKDOWN

THERMOSTATICALLY-CONTROLLED BILTMORE SPLIT OAK
MODELS CCL3018PTA AND CCL3018NTA

2

5

3

4

14

13

7

1

22

20

15

11

8

23

24

21

12

9

16

10

23

17

23

6

18

21

19

23

36

www.desatech.com 111160-01C

PARTS LIST

THERMOSTATICALLY-CONTROLLED BILTMORE SPLIT OAK
MODELS

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions
listed under Replacement Parts on page 30 of this manual

KEY PART NUMBER

NO. CCL3018PTA CCL3018NTA DESCRIPTION QTY.

1 111340-03 111340-03 Front Log (#1) 1
2 111341-03 111341-03 Middle Log (#2) 1
3 111342-03 111342-03 Back Log (#3) 1
4 111343-03 111343-03 Left Back Crossover Log (#4) 1
5 111344-02 111344-02 Left Top Crossover Log (#5) 1
6 111345-02 11345-02 Right Bottom Crossover Log (#6) 1
7

** **
8 102844-02 102844-02 Lower Bracket 1
9 099211-01 099211-01 Hex Screw, 10-16 x 2.50 2
10 098867-10 098867-14 Gas Regulator 1
11 102810-03 102810-03 Inlet Tube 1
12 102983-06 111331-08 Outlet Burner Tube 1
13 099056-19 099056-26 Burner Orifice Injector 1
14 111124-01 111124-01 Burner Retainer Spring 1
15 102980-01 102980-01 Burner 1
16 101329-22 101329-21 Thermostat Gas Valve Assembly 1
17 102979-02 102979-02 Thermostat Bracket 1
18 098544-01 098544-01 Thermostat Clip 1
19 102445-01 102445-01 Piezo Ignitor 1
20 099387-09 099387-09 Pilot Tube 1
21 098271-10 098271-10 Ignitor Cable 1
22 104286-01 104285-01 ODS Pilot 1
23 M11084-38 M11084-38 Hex Screw, #8-18 x .38 15
24 098249-01 098249-01 Nut, M5 2

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 100839-01 Caution Decal 1

101137-02 101137-02 Hardware Kit 1

GA6060 GA6060 Lava Rock 1

** Not a field replaceable part.

Painted Base Assembly 1

111160-01C 37

www.desatech.com

ILLUSTRATED PARTS BREAKDOWN

THERMOSTATICALLY-CONTROLLED BILTMORE SPLIT OAK
MODELS CCL3924PTA, CCL3924NTA, CCL3930PTB AND
CCL3930NTB

Peg positions
vary according
to model.

2

5

4

14

13

9

19

1

22

20

15

11

8

23

21

24

21

7

12

25

16

10

23

17

23

6

18

23

38

www.desatech.com 111160-01C

PARTS LIST

THERMOSTATICALLY-CONTROLLED BILTMORE SPLIT OAK
MODELS

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions
listed under Replacement Parts on page 30 of this manual.

KEY PART NUMBER
NO.

CCL3924PTA CCL3924NTA CCL3930PTB CCL3930NTB

1 111340-02 111340-02 111340-01 111340-01 Front Log (#1) 1
2 111341-02 111341-02 111341-01 111341-01 Middle Log (#2) 1
3 111342-02 111342-02 111342-01 111342-01 Back Log (#3) 1
4 111343-02 111343-02 111343-01 111343-01 Left Back Crossover

5 111344-01 111344-01 111344-01 111344-01 Left Top Crossover Log (#5) 1
6 111345-02 111345-02 111345-01 111345-01 Right Bottom

____ ____

7

8 102844-01 102844-01 102844-01 102844-01 Lower Bracket 1
9

** ** ** **
10 098867-10 098867-14 098867-10 098867-14 Gas Regulator 1
11 102810-03 102810-03 102810-03 102810-03 Inlet Tube 1
12 102983-02 102983-01 102983-02 102983-01 Outlet Burner Tube 1
13 099056-17 099056-16 099056-17 099056-16 Burner Orifice Injector 1
14 111124-01 111124-01 111124-01 111124-01 Burner Retainer Spring 1
15 102772-01 102772-01 102772-01 102772-01 Burner 1
16 101329-19 101329-20 101329-19 101329-20 Thermostat Gas Valve

17 102979-01 102979-01 102979-01 102979-01 Thermostat Bracket 1
18 098544-01 098544-01 098544-01 098544-01 Thermostat Clip 1
19 102445-01 102445-01 102445-01 102445-01 Piezo Ignitor 1
20 099387-09 099387-09 099387-09 099387-09 Pilot Tube 1
21 098271-10 098271-10 098271-10 098271-10 Ignitor Cable 1
22 104286-01 104285-01 104286-01 104285-01 ODS Pilot 1
23 M11084-38 M11084-38 M11084-38 M11084-38 Hex Screw, #8-18 x .38 12
24 098249-01 098249-01 098249-01 098249-01 Nut, M5 2
25 099211-01 099211-01 099211-01 099211-01 Hex Screw, 10-16 x 2.50 2

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

101054-01 101054-01 101054-01 101054-01 Lighting Instructions Plate 1

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

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

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

GA6060 GA6060 GA6060 GA6060 Lava Rock 1

____ ____

** Not a field replaceable part.

111346-01 111346-01 Right Top Crossover

PARTS AVAILABLE — NOT SHOWN

102030-01 102030-01 Auxiliary Thermostat

DESCRIPTION QTY.

Log (#4) 1

Crossover Log (#6) 1

Log (#7) 1

Painted Base Assembly 1

Assembly 1

Mounting Clip 1

111160-01C 39

www.desatech.com

ILLUSTRATED PARTS BREAKDOWN

VARIABLE MANUALLY-CONTROLLED SEASONAL OAK MODELS
CRL2718P, CRL2718N, CRL3124P AND CRL3124N

1

3

2

20

18

10

11

12

17

19

5

6

4

13

21

19

16

40

15

14

www.desatech.com 111160-01C

6

18

7

6

9

8

PARTS LIST

VARIABLE MANUALLY-CONTROLLED SEASONAL OAK MODELS

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions
listed under Replacement Parts on page 30 of this manual.

KEY PART NUMBER

NO. CRL2718P CRL2718N CRL3124P CRL3124N DESCRIPTION QTY.

1 110243-01 110243-01 110242-01 110242-01 Back Log (#1) 1
2 110243-02 110243-02 110242-02 110242-02 Front Log (#2) 1
3 110242-03 110242-03 110242-03 110242-03 Crossover Log (#3) 1
4

** ** ** **
5 102844-01 102844-01 102844-01 102844-01 Lower Bracket 1
6 M11084-38 M11084-38 M11084-38 M11084-38 Screw, Hex Head

7 098867-10 098867-14 098867-10 098867-14 Gas Regulator 1
8 102780-05 102780-05 102780-05 102780-05 Outlet Burner Tube 1
9 102798-01 102798-01 102798-01 102798-01 Inlet Tube 1
10 099056-21 099056-20 099056-19 099056-18 Burner Orifice Injector 1
11 111124-01 111124-01 111124-01 111124-01 Burner Retainer Spring 1
12 102963-01 102963-01 102773-01 102773-01 Burner 1
13 102568-08 102568-07 102568-08 102568-07 Control Valve 1
14 098508-01 098508-01 098508-01 098508-01 Valve Retainer Nut 1
15 098354-01 098354-01 098354-01 098354-01 Control Knob 1
16 102445-01 102445-01 102445-01 102445-01 Piezo Ignitor 1
17 098249-01 098249-01 098249-01 098249-01 Nut, M5 2
18 099387-08 099387-08 099387-08 099387-08 Pilot Tube 1
19 098271-10 098271-10 098271-10 098271-10 Ignitor Cable 1
20 104286-01 104285-01 104286-01 104285-01 ODS Pilot 1
21 098276-01 098276-01 098276-01 098276-01 Hex Head Plug, 1/8" NPT 1

PARTS AVAILABLE — NOT SHOWN

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

101055-02 101055-02 101055-02 101055-02 Lighting Instructions

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

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

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

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

GA6060 GA6060 GA6060 GA6060 Lava Rock 1

** Not a field replaceable part..

Painted Base Assy 1

(#8-18 x .38) 8

Plate 1

111160-01C 41

www.desatech.com

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
1-888-619-7060
[e-mail]
[e-mail]

FBD

1349 Adams Street
Bowling Green, KY 42103-3414
270-846-1199
1-800-654-8534
Fax: [phone]
[e-mail]

Master Parts Dist.

1251 Mound Ave NW
Grand Rapids, MI 49504-2672
616-791-0505
1-800-446-1446
Fax: [phone]
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

Laportes Parts & Service

2444 N. 5th Street
Hartsville, SC 29550-7704
843-332-0191
Parts Department

Cans Unlimited, Inc.

P.O. Box 645
Taylor, SC 29687-0013
All States
803-879-3009
1-800-845-5301
[e-mail]

42

www.desatech.com 111160-01C

ACCESSORIES

Purchase these fireplace accessories from your lo­cal dealer. If they can not supply these accessories,
call DESA Heating Products’ Sales Department at
1-866-672-6040 for referral information. You can
also write to the address listed on the back page of
this manual.

EQUIPMENT SHUTOFF VALVE ­GA5010

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

INFORMATION VIDEO - 108917-01

For all models. A care and maintenance video is
available by calling 1-866-672-6040. You may also
email your request to

[e-mail].

FIREPLACE HOOD

GA6050 (Black)
GA6052 (Brass)
GA6053 (Antique Brass)

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. Can be used only with non-ther­mostat accessories.

LAVA ROCK - GA6060
(Not Shown)

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

111160-01C 43

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 GAS LOG HEATERS

DESA Heating Products warrants this product to be free from defects in materials and components for two (2) years
from the date of first purchase, provided that the product has been properly installed, operated and maintained in
accordance with all applicable instructions. To make a claim under this warranty the Bill of Sale or cancelled check
must be presented.

This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s) required to
restore this heater to proper operating condition and an allowance for labor when provided by a DESA Heating
Products Authorized Service Center. Warranty part(s) MUST be obtained through authorized dealers of this prod­uct and/or DESA Heating Products who will provide original factory replacement parts. Failure to use original
factory replacement parts voids this warranty. The heater MUST be installed by a qualified installer in accordance
with all local codes and instructions furnished with the unit.

This warranty does not apply to parts that are not in original condition because of normal wear and tear, or parts
that fail or become damaged as a result of misuse, accidents, lack of proper maintenance or defects caused by
improper installation. Travel, diagnostic cost, labor, transportation and any and all such other costs related to
repairing a defective heater will be the responsibility of the owner.

TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF
THE PRODUCT; THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRAN­TIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES, INCLUDING WARRAN­TIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO TWO (2) YEARS ON ALL
COMPONENTS FROM THE DATE OF FIRST PURCHASE; AND DESA HEATING PRODUCTS’ LIABILITY
IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND DESA HEATING PRODUCTS
SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT, INCI­DENTAL OR CONSEQUENTIAL DAMAGES.

Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of
incidental or consequential damages, so the above limitation on implied warranties, or exclusion or limitation on
damages may not apply to you.

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

For information about this warranty write:

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

111160 01

NOT A UPC

111160-01
Rev. C
03/04