Desa E24P, VS30NVC, VS30PVC, VS18NTB, VS18PTB Owner's Manual

Save this manual for future reference.

For more information, visit www.desatech.com

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.

LO

PILOT

OFF

HI

UNVENTED (VENT-FREE) GAS LOG HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

(“A” MODELS) 18", 24" AND 30" REMOTE-READY

(“C” MODELS) 18", 24" AND 30" VARIABLE MANUALLY-CONTROLLED

(“B” MODELS) 18", 24" AND 30" THERMOSTATICALLY-

CONTROLLED

Remote-Ready and Variable Manually-Controlled Models Also Design-Certified As

Vented Decorative Appliances

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104415-01M2

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

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

WARNING: This is an unvented gas-fired heater. It uses
air (oxygen) from the room in which it is installed. Provi­sions for adequate combustion and ventilation air must
be provided. Refer to Air for Combustion and Ventilation
section on page 6 of this manual.

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

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

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

TABLE OF CONTENTS

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

Local Codes ........................................................ 4

Product Identification ........................................... 5

Optional Remote Control Accessories .................

5

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

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

Air For Combustion and Ventilation .....................

6

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

Operating Heater ............................................... 19

Inspecting Burners ............................................ 26

Cleaning and Maintenance ................................ 27

Troubleshooting ................................................. 29

Optional Positioning of Thermostat Sensing Bulb

... 33

Wiring Diagram .................................................. 34

Service Hints ..................................................... 34

Technical Service .............................................. 34

Replacement Parts ............................................ 34

Specifications .................................................... 35

Illustrated Parts Breakdown and Parts List ....... 36

Accessories ....................................................... 42

Warranty Information ...........................

Back Cover

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104415-01M 3

SAFETY INFORMATION

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

IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, op­erate or service this fireplace.
Improper use of this fireplace
can cause serious injury or
death from burns, fire, explo­sion, electrical shock and carbon
monoxide poisoning.

DANGER: Carbon monoxide
poisoning may lead to death!

Carbon Monoxide Poisoning: Early signs of carbon

monoxide poisoning resemble the flu, with head

-

aches, 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 pro-

pane/LP gases are odorless. An odor-making
agent is added to these gases. The odor helps you
detect a gas leak. However, the odor added to the
gas can fade. Gas may be present even though no
odor exists.

Make certain you read and understand all warn

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

WARNING: Do not allow fans
to blow directly into the heater.
Avoid any drafts that alter burner
flame patterns. Ceiling fans can
create drafts that alter burner
flame patterns. Altered burner
patterns can cause sooting.

Due to high temperatures, the
appliance should be located out
of traffic and away from furniture
and draperies.

Do not place clothing or other
flammable material on or near
the appliance. Never place any
objects on the heater.

Heater base assembly becomes
very hot when running heater.
Keep children and adults away
from hot surface to avoid burns
or clothing ignition. Heater
will remain hot for a time after
shutdown. Allow surface to cool
before touching.

Carefully supervise young chil­dren when they are in the room
with heater. When using the hand­held remote accessory, (Remote­Ready Models Only) keep selector
switch in the OFF position to
prevent children from turning on
burners with remote.

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

Keep the appliance area clear
and free from combustible ma

­terials, gasoline and other flam­mable vapors and liquids.

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104415-01M4

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

2. Do not place propane/LP supply tank(s) in

­side any structure. Locate propane/LP supply
tank(s) outdoors (propane/LP units only).

3. If you smell gas

• shut off gas supply

• do not try to light any appliance

• do not touch any electrical switch; do not

use any phone in your building

• immediately call your gas supplier from

a neighborʼs phone. Follow the gas
supplierʼs instructions

• if you cannot reach your gas supplier, call

the fire department

4. This heater shall not be installed in a bedroom or
bathroom, unless installed as a vented appliance.
See Installing Damper Clamp Accessory for
Vented Operation, page 12 (Remote-Ready and
Variable Manually-Controlled Models Only).

5. 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.

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

7. 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.

8. To prevent the creation of soot, follow the
instructions in Cleaning and Maintenance

,

page 27.

9. 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 and furniture.

SAFETY INFORMATION

Continued

10. This heater needs fresh, outside air ventilation to
run properly. This heater has an Oxygen Deple

­tion Sensing (ODS) safety shutoff system. The
ODS shuts down the heater if enough fresh air
is not available. See Air for Combustion and
Ventilation, page 6. If heater keeps shutting off,
see Troubleshooting, page 29.

11. Do not run heater

• where flammable liquids or vapors are

used or stored

• under dusty conditions

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

13. 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.

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

15. Turn heater off and let cool before servicing,
installing, or repairing. Make sure the selector
switch is in the OFF position (Remote-Ready
Models Only). Only a qualified service person
should install, service, or repair heater.

16. Make sure the selector switch is in the OFF
position when you are away from home for long
periods of time (Remote-Ready Models Only).

17. Remote-Ready heaters do not to be connected
to any external electrical source.

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

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

20. Provide adequate clearances around air
openings.

State of Massachusetts: The installa

­tion must be made by a licensed plumber
or gas fit ter in the Commonwealth of
Massachusetts.

Sellers of unvented propane or natural
gas-fired supplemental room heaters shall
provide to each purchaser a copy of 527
CMR 30 upon sale of the unit.

Vent-free gas products are prohibited for
bedroom and bathroom installation in the
Commonwealth of Massachusetts.

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104415-01M 5

PRODUCT

IDENTIFICATION

Figure 1 - Product Identification

Front
Log

Crossover Log

Rear
Log

Middle
Log

Base Assembly

Control
Knob

Front
Burner

Piezo
Ignitor

Rear
Burner

Front
Log

Control Knob

Rear Log

Base
Assembly

Front
Burner

Piezo
Ignitor

Rear Burner

Crossover Log

Middle
Log

Selector Switch
(Optional)

Flame Adjustment
Knob

Remote
Control
(Optional)

OPTIONAL REMOTE

CONTROL ACCESSORIES

There are four optional remote controls that
can be purchased separately for Remote-Ready
Models Only:

• wall switch • hand-held ON/OFF remote

• wall thermostat •

hand-held thermostat remote

See Accessories, page 42.

The wall thermostat or hand-held thermostat
may not be used where vented decorative listing
is required.

LOCAL CODES

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

­est edition of The National Fuel Gas Code ANSI
Z223.1/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
required, thermostat operation is not permitted.

UNPACKING

CAUTION: Do not remove the

data plates from the grate as

­sembly. The data plates contain
important warranty and safety
information.

1. Remove logs and heater base assembly from

carton. Note: Do not pick up heater base as­sembly by burners. This could damage heater.
Always handle base assembly by grate.

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

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

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104415-01M6

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

PROVIDING ADEQUATE
VENTILATION

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

.

All spaces in homes fall into one of the three fol

-

lowing ventilation classifications:

1. Unusually Tight Construction

2. Unconfined Space

3. Confined Space

The information on pages 6 through 8 will help
you classify your space and provide adequate
ventilation.

Unusually Tight Construction

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

Unusually tight construction is defined as
construction where:

a. walls and ceilings exposed to the out

­side atmosphere have a continuous
water vapor retarder with a rating of
one perm (6 x 10

-11

kg per pa-sec-m2) or
less with openings gasketed or sealed
and

b. weather stripping has been added on

openable windows and doors and

c. caulking or sealants are applied to

areas such as joints around window
and door frames, between sole plates
and floors, between wall-ceiling joints,
between wall panels, at penetrations
for plumbing, electrical and gas lines
and at other openings.

If your home meets all of the three criteria
above, you must provide additional fresh air.
See Ventilation Air From Outdoors, page 8.

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

Determin-

ing Fresh-Air Flow For Heater Location,

page 7.

AIR FOR COMBUSTION

AND VENTILATION

WARNING: This heater shall
not be installed in a confined
space or unusually tight con

­struction unless provisions are
provided for adequate combus­tion and ventilation air. Read the
following instructions to insure
proper fresh air for this and
other fuel-burning appliances
in your home.

Todayʼs homes are built more energy efficient
than ever. New materials, increased insulation and
new construction methods help reduce heat loss
in homes. Home owners weather strip and caulk
around windows and doors to keep the cold air out
and the warm air in. During heating months, home
owners want their homes as airtight as possible.

While it is good to make your home energy efficient,
your home needs to breathe. Fresh air must enter
your home. All fuel-burning appliances need fresh
air for proper combustion and ventilation.

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 both realistic flames
and glowing coals. 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 Models Only).

SAFETY DEVICE

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.

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104415-01M 7

Confined and Unconfined Space

The National Fuel Gas Code, ANSI Z223.1/NFPA
54 defines a confined space as a space whose

volume is less than 50 cubic feet per 1,000 Btu
per hour (4.8 m

3

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 m

3

per kw) of the aggregate input rating of

all appliances installed in that space. Rooms com

­municating directly with the space in which the
appliances are installed*, through openings not
furnished with doors, are considered a part of the
unconfined space.

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

DETERMINING FRESH-AIR FLOW
FOR HEATER LOCATION

Determining if You Have a Confined or
Unconfined Space

Use this work sheet to determine if you have a
confined or unconfined space.

Space: Includes the room in which you will install

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

1. Determine the volume of the space (length x

width x height).

Length x Width x Height =__________cu. ft.

(volume of space)

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

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

If additional ventilation to adjoining room is

supplied with grills or openings, add the volume
of these rooms to the total volume of the space.

2. Multiply the space volume by 20 to determine

the maximum Btu/Hr the space can support.

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

mum Btu/Hr the space can support)

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

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

AIR FOR COMBUSTION

AND VENTILATION

Continued

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

Vent-free fireplace

__________ Btu/Hr

Gas water heater*

__________ Btu/Hr

Gas furnace

__________ Btu/Hr

Vented gas heater

__________ Btu/Hr

Gas fireplace logs

__________ Btu/Hr

Other gas appliances* +

__________ Btu/Hr

Total =

__________ Btu/Hr

* Do not include direct-vent gas appliances. Di

­rect-vent draws combustion air from the outdoors
and vents to the outdoors.

Example:

Gas water heater

__________ Btu/Hr

Vent-free fireplace +

__________ Btu/Hr

Total =

__________ Btu/Hr

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

_________

Btu/Hr (maximum the space can support)

_________

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

Example: 51,200 Btu/Hr (maximum the space

can support)

73,000 Btu/Hr (actual amount of

Btu/Hr used)

The space in the example is a confined space because
the actual Btu/Hr used is more than the maximum
Btu/Hr the space can support. You must provide ad

-

ditional fresh air. Your options are as follows:

A. Rework worksheet, adding the space of an adjoin

­ing room. If the extra space provides an unconfined
space, remove door to adjoining room or add
ventilation grills between rooms. See Ventilation
Air From Inside Building, page 8.

B. Vent room directly to the outdoors. See Ventila

­tion Air From Outdoors, page 8.

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 uncon-

fined space. You will need no additional fresh air
ventilation.

WARNING: If the area in

which the heater may be oper

­ated is smaller than that defined
as an unconfined space or if the
building is of unusually tight
construction, provide adequate
combustion and ventilation air
by one of the methods described
in the National Fuel Gas Code,

ANSI Z223.1/NFPA 54 Section 5.3

or applicable local codes.

40,000

33,000

73,000

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104415-01M8

INSTALLATION

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

WARNING: A qualified ser­vice person must install heater.
Follow all local codes.

NOTICE: State or local codes may
only allow operation of this appli­ance in a vented configuration.
Check your state or local codes.

WARNING: Make sure the
selector switch is in the OFF
position before installing heater
(Remote-Ready Models Only).

Figure 3 - Ventilation Air from Outdoors

VENTILATION AIR

Ventilation Air From Inside Building

This fresh air would come from an adjoining un

­confined space. When ventilating to an adjoining
unconfined space, you must provide two permanent
openings: one within 12" of the ceiling and one
within 12" of the floor on the wall connecting the
two spaces (see options 1 and 2, Figure 2). You
can also remove door into adjoining room (see
option 3, Figure 2). Follow the National Fuel Gas

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

ventilation grills or ducts.

AIR FOR COMBUSTION

AND VENTILATION

Continued

Figure 2 - Ventilation Air from Inside

Building

Ventilation Air From Outdoors

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

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

required size of ventilation grills or ducts.
IMPORTANT: Do not provide openings for inlet

or outlet air into attic if attic has a thermostat­controlled power vent. Heated air entering the attic
will activate the power vent.

Outlet
Air

Ventilated
Attic

Outlet

A

ir

Inlet
Air

Inlet Air

Ve

ntilated

Crawl Space

To

Crawl

Space

To Attic

Or

Remove
Door into
Adjoining

Room,
Option

3

Ventilation Grills

Into Adjoining Room,

Option

2

Ve

ntilation

Grills

Into Adjoining

Room,

Option 1

12"

12"

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104415-01M 9

WARNING: Before installing in
a solid fuel burning fireplace, the
chimney flue and firebox must be
cleaned of soot, creosote, ashes
and loose paint by a qualified chim­ney cleaner. Creosote will ignite
if highly heated. A dirty chimney
flue may create and distribute soot
within the house. Inspect chimney
and firebox flue 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.

WARNING: Never install the
heater

•

in a bedroom or bathroom
unless installed as a vented
appliance, see page 12 (Re

-

mote-Ready and Variable Manu

-

ally-Controlled Models Only)

• in a recreational vehicle

• where curtains, furniture, cloth-

ing or other flammable objects
are less than 42 inches from the
front, top or sides of the heater

• in high traffic areas

• in windy or drafty areas

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

IMPORTANT: Vent-free heaters add moisture to
the air. Although this is beneficial, installing heater
in rooms without enough ventilation air may cause
mildew to form from too much moisture. See Air

for Combustion and Ventilation

, page 6.

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.

WARNING: This appliance
is equipped for (natural or pro

­pane/LP) gas. Field conversion
is not permitted.

INSTALLATION AND CLEARANCES
FOR VENT-FREE OPERATION

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

INSTALLATION

Continued

LOG SIZING REQUIREMENTS

Minimum Firebox Size
Log Front Rear*

Size Height Depth Width Width

18" 17" 14" 20" 14"
24" 17" 14" 26" 18"
30" 17" 14" 32" 22"

MINIMUM FIREPLACE CLEARANCE

TO COMBUSTIBLE MATERIALS

Log Size 18", 24", 30"
Side Wall 16"
Ceiling 42"
Floor 5"

*Measured at 14" depth

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104415-01M10

Carefully follow the instructions below. This will
ensure safe installation into a masonry, UL127­listed manufactured fireplace, or listed vent-free
firebox.

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

A. Clearances from the side of the fireplace

cabinet to any combustible material and wall
should follow diagram in Figure 4.

Example: The face of a mantel, bookshelf,

etc. is made of combustible material and
protrudes 3

1

/2" from the wall. This combus­tible material must be 4" from the side of the
fireplace cabinet (see Figure 4).

Note: When installing your gas logs into

a manufactured firebox, follow firebox
manufacturerʼs instructions for minimum
clearances to combustible materials.

B. Clearances from the top of the fireplace open

-

ing to the ceiling should not be less than 4".

Figure 4 - Minimum Clearance for

Combustible to Wall

*Minimum 16 inches from Side Wall

*

Example

Heat Resistant
Material

(A)

Minimum Noncombustible Material
Clearances

If Not Using Mantel

Note: If using a mantel proceed to If Using Mantel,
page 11. If not using a mantel, follow the informa­tion on this page.

You must have noncombustible material(s) above
the fireplace opening. Noncombustible materials
(such as slate, marble, tile, etc.) must be at least
1/2" thick. With sheet metal, you must have non

­combustible 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 5 for minimum
clearances.

INSTALLATION

Continued

NOTICE: Manual control heaters
may be used as a vented product.
If so, you must always run heater
with chimney flue damper open.
If running heater with damper
open, noncombustible material
above fireplace opening is not
needed. Go to Installing Damper

Clamp Accessory for Vented
Operation, page 12.

Noncombustible Requirements for
Material Safe Installation
Distance (A)

12" or more Noncombustible material
okay.

Between 8" 24" or 30" Models:
and 12" Install fireplace hood
accessory (GA6050,
GA6052 or GA6053 see
Accessories, page 42).
18" Model: Noncombus­ tible material okay.

Less than 8" Noncombustible material
must be extended to at
least 8". See

Between 8"

and 12"

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

Figure 5 - Heat Resistant Material (Slate,

Marble, Tile, etc.) Above Fireplace

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104415-01M 11

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" thick. With sheet metal, you must have non

­combustible material behind it. Noncombustible
material must extend at least 8" up (for all models).
If noncombustible material is less than 12", you

Figure 6 - Minimum Mantel Clearances Without Using Hood

Figure 7 - Minimum Mantel Clearances When Using Hood

Minimum Non­Combustible
Material

Minimum Non­Combustible
Material Height

Distances to
Underside of
Mantel

Top of Fireplace
Opening

Underside of
Mantel Shelf

12"

8"

(A)

18"

14"

20"

17"

22"

19"

24"

20"

All minimum
distances are
in inches

Log Set
24"/30" Models

18" Model

2

1

/2

"

6"

8"

10"

Mantel Shelf

Minimum Non­Combustible
Material

8"
Min.

12"

15"

18"

All minimum
distances are
in inches

Log Sets

18", 24",
& 30" Models

20"

2

1

/2

"

6"

8"

10"

12"

Distances to
Underside of
Mantel

Hood
(GA6050, GA6052

)

Top of Fireplace
Openin

g

Underside of
Mantel Shel

f

Hood
(GA6050,
GA6052, or
GA6053)

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 5, page 10 and Figures 6 and 7
for minimum clearances.

IMPORTANT: If you cannot meet these minimum
clearances, you must operate heater with chimney
flue damper open. Go to Installing Damper Clamp

Accessory for Vented Operation

, page 12.

Mantel

www.desatech.com

104415-01M12

INSTALLATION

Continued

MANTEL CLEARANCES

In addition to meeting noncombustible material
clearances, you must also meet required clearances
between fireplace opening and mantel shelf. If
you do not meet the clearances listed below, you
will need a hood.

Determining Minimum Mantel Clearance

If you meet minimum clearance between mantel
shelf and top of fireplace opening, a hood is not
required (see Figure 6, page 11).

Determining Minimum Mantel Clearance
When Using a Hood

If minimum clearances in Figure 6, page 11, are
not met, you must have a hood. When using a hood
there are still certain minimum mantel clearances
required. Follow minimum clearances shown in
Figure 7, page 11, when using hood.

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

NOTICE: If your installation does
not meet the minimum clear

­ances shown, you must do one
of the following:

• operate the logs only with the

flue damper open

• raise the mantel to an accept-

able height

• remove the mantel

FLOOR CLEARANCES

A. If installing appliance on the floor level, you

must maintain the minimum distance of 14"
to combustibles (see Figure 8).

B. If combustible materials are less than 14" to

the fireplace, you must install appliance at
least 5" above the combustible flooring (see
Figure 9).

14"
Min.

Combustible
Material

Noncombustible
Material

Hearth

5"
Min.

Combustible
Material

Figure 8 - Minimum Fireplace Clearances

If Installed at Floor Level

Figure 9 - 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 combustibles requirements for vent-free
operation.

2. State or local codes do not permit vent-free
operation.

3. You prefer vented operation.

If reasons number 1 or 2 above apply to you, you
must permanently open chimney flue damper. You
must install the damper clamp accessory (to order,
see Accessories, page 42). This will insure vented
operation (see Figure 10, page 13). The damper
clamp will keep damper open. Installation instruc

-

tions are included with clamp accessory.

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

www.desatech.com

104415-01M 13

INSTALLATION

Continued

Figure 10 - Attaching Damper Clamp

INSTALLING HEATER BASE
ASSEMBLY

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.

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

Chimney Minimum Permanent
Height (ft.) Flue Opening (sq. in.)

6' to 15' 39 sq. inches
15' to 30' 29 sq. inches

Manufactured

Fireplace

Masonry

Fireplace

Damper

Damper
Clamp

Damper

Damper
Clamp

Damper

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

IMPORTANT: Make sure the heater burners are lev­el. If heater is not level, heater will not work properly.
For thermostat models, avoid damage to thermostat
bulb. Avoid nicks or sharp bends in thermostat bulb
wire. Keep thermostat bulb in mounting bracket until
ready to mount base to floor. See Optional Position-
ing Of Thermostat Sensing Bulb, page 33.

Installation Items Needed

• hardware package (provided with heater)

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

•

sealant (resistant to propane/LP gas, not provided)

• electric drill with 3/16" masonry drill bit

Note: Install optional GHRCTB Receiver and
Hand-Held Remote Control Kit (see

Accessories,
page 42) before installing gas log heater (Remote­Ready Models Only). See installation instructions
included with the kit.

1. Apply pipe joint sealant lightly to male threads

of gas fitting (not provided). For Variable
Manually-Controlled and Thermostatically­Controlled Models connect approved flexible
gas hose to gas regulator of heater (see Figure

11). For Remote-Ready models connect ap

­proved flexible gas hose to inlet side of gas
control (see Figure 12).

Heater Gas
Regulator

Flexible Gas Hose (if
allowed by local codes)

Figure 11 - Attaching Flexible Gas Hose to

Heater Gas Regulator (Variable Manually-

Controlled and Thermostatically-

Controlled Models Only)

Figure 12 - Attaching Flexible Gas Hose

to Heater Gas Regulator (Remote-Ready

Models Only)

Gas Control

Flexible Gas Hose (if
allowed by local codes)

www.desatech.com

104415-01M14

IMPORTANT: Hold gas regulator with

wrench when connecting flexible gas hose
(Variable Manually-Controlled and Thermo­statically-Controlled Models Only).

2. Locate mounting brackets, bolts, and nuts in
hardware package (Variable Manually-Con

­trolled and Thermostatically-Controlled Models
Only). Attach mounting brackets to heater base
(see Figure 13). Attach nuts finger tight.

3. Position heater base assembly in fireplace.

4. For Variable Manually-Controlled and Ther

­mostatically-Controlled Models mark screw
locations through holes in mounting brackets
(see Figure 13). For Remote-Ready Models
mark screw locations through holes in front
panel of base (see Figure 14). If installing in a
brick-bottom fireplace, mark screw locations
in mortar joint of bricks.

5. Remove heater base from fireplace.

6. Remove mounting brackets from heater base
(Variable Manually-Controlled and Thermo

-

statically-Controlled Models Only).

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

8. Fo r Var iable Manually -Contro lled and
Thermostatically-Controlled Models attach
mounting brackets to fireplace floor using
masonry screws provided in hardware pack

­age (see Figure 13). Reattach heater base to
mounting brackets (see Figure 13). Tighten
nuts firmly.

INSTALLATION

Continued

Figure 13 - Attaching Heater to Fireplace

Floor (Variable Manually-Controlled and

Thermostatically-Controlled Models

Only)

Masonry
Screw

Mounting
Bracket
Screw

Mounting
Bracket Nut

Mounting
Bracket

Figure 14 - Attaching Base to Fireplace

Floor (Remote-Ready Models Only)

Masonry Screw

9. For Remote-Ready Models attach base,
through holes in front panel of base, to fire

­place floor using masonry screws provided in
hardware package (see Figure 14).

10. Connect to gas supply. See Connecting To Gas
Supply.

CONNECTING TO GAS SUPPLY

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

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

CAUTION: Never connect
propane/LP fireplace directly
to the propane/LP supply. This
heater requires an external regu

­lator (not supplied). Install the
external regulator between the
heater and propane/LP supply.

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

www.desatech.com

104415-01M 15

INSTALLATION

Continued

Propane/LP
Supply Tank

External
Regulator

Figure 15 - External Regulator With Vent

Pointing Down

Vent
Pointing
Down

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

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

We recommend that you install a sediment trap
in supply line as shown in Figures 16 or 17 page
16, depending on your model. 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
(Variable Manually-Controlled
and Thermostatically-Controlled
Models Only).

CAUTION: Avoid damage to
gas control. Hold gas control
with wrench when connecting
it to gas piping and/or fittings
(Remote-Ready Models Only).

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

• approved flexible gas line with gas connector
(if allowed by local codes) (not provided)

* 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 42.

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 pres

­sure, 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 Figures 16
or 17 page 16, depending on your model).

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

Check your building codes for any special re

­quirements for locating equipment shutoff valve
to fireplaces.

www.desatech.com

104415-01M16

Figure 16 - Gas Connection

(Variable Manually-Controlled and

Thermostatically-Controlled Models Only)

* Purchase the optional CSA design-certified

equipment shutoff valve from your dealer. See
Accessories, page 42.

** Minimum inlet pressure for purpose of input

adjustment.

Figure 17 - Gas Connection (Remote-

Ready Models Only)

Gas Control

3" Min

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

Approved
Flexible Gas
Hose (if allowed
by local codes)

INSTALLATION

Continued

3" Minimum

Sediment Trap

Gas
Regulator

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

Approved Flexible
Gas Hose (if allowed
by local codes)

Cap Pipe Tee
Nipple Joint

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)

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)

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.

CAUTION: Make sure exter­nal regulator has been installed
between propane/LP supply
and heater. See guidelines un­der Connecting to Gas Supply,
page 14.

PRESSURE TESTING GAS SUPPLY
PIPING SYSTEM

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

1. Disconnect appliance with its appliance main
gas valve (control valve) and equipment
shutoff valve from gas supply piping system.
Pressures in excess of 1/2 psig will damage
heater regulator.

2. Cap off open end of gas pipe where equipment
shutoff valve was connected.

3. Pressurize supply piping system by either
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 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.

www.desatech.com

104415-01M 17

INSTALLATION

Continued

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

1. Close equipment shutoff valve (see Figure 18).

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 Figure 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 18).

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

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

4. Check all joints from equipment shutoff
valve to thermostat gas valve (Thermostat­Controlled Models), to control valve (Manu

­ally-Controlled Models), or to gas control
(Remote-Ready Models) (see Figures 19 and

20). 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, page 19).
Check all other internal joints for leaks.

7. Turn off heater (see To Turn Off Gas to Appli

-

ance, page 20 for Thermostat-Controlled mod-

els, page 22 for Manually-Controlled Models,
or page 24 for Remote-Ready Models).

Equipment
Shutoff
Valve

Open

Closed

Figure 18 - Equipment Shutoff Valve

Figure 19 - Checking Gas Joints

(Propane/LP Only)

Thermostat Gas Valve or
Control Valve Location

Propane/LP
Supply Tank

Equipment
Shutoff Valve

Equipment Shutoff Valve

Gas Meter

Figure 20 - Checking Gas Joints (Natural

Gas Only)

Thermostat Gas Valve or
Control Valve Location

INSTALLING LOGS

WARNING: Failure to posi­tion the parts in accordance
with these diagrams or failure
to use only parts specifically
approved with this heater may
result in property damage or
personal injury.

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

1. Place front log (#1 for 18", #1a and #1b for
24" and 30") on top of the grate. Make sure
the notches in the bottom of the log fits over
the grate prongs (see Figure 21, page 18). Push
back of logs flush with metal grate bar. Logs
for 24" and 30" should fit with ends touching
and a small realistic crack in the center.

www.desatech.com

104415-01M18

INSTALLATION

Continued

2. Rest middle log (#2) behind metal posts on front
burner. Make sure the grooves in the bottom of
the log fit over the grate. Bring the log forward
next to the metal posts. The cutout in the middle
log must be on top (see Figure 22).

3. Slide the grooves in the back of the rear log (#3)
against the rear grate prongs. Make sure the peg
on the log is on top (see Figure 23).

4. Place the crossover log (#4) on the back log and
the middle log. Make sure the peg on the rear
log is in the hole in the bottom of the crossover
log. The crossover log should fit in the cutout
of the middle log (see Figure 24).

Middle Log (#2)

Metal Post

Metal
Post

Groove

Groove

Grate

Figure 22 - Installing Middle Log (#2) [18"
Variable Manually-Controlled Set Shown]

Rear Log (#3)

Peg

Grate
Prong

Grate Prong

Rear
Burner

Groove
in Back
of Log

Groove
in Back
of Log

Figure 23 - Installing Rear Log (#3) [18"

Variable Manually-Controlled Set Shown]

Front Log (#1)

Grate
Prongs

Metal Grate
Bar

Figure 21 - Installing Front Log (#1) [18"

Variable Manually-Controlled Set Shown]

Notch

Figure 24 - Installing Crossover Log (#4)

[18" Variable Manually-Controlled Set

Shown]

Crossover
Log (#4)

Hole

Peg

Cutout

Note: Your appliance may vary from model shown
but log placement will be the same.

www.desatech.com

104415-01M 19

OPERATING HEATER

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, per

-

sonal injury or loss of life.

A. This appliance has a pilot which must be

lighted by hand. When lighting the pilot,
follow these instructions exactly.

B. BEFORE LIGHTING smell all around the

appliance area for gas. Be sure to smell next
to the floor because some gas is heavier than
air and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

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

• Immediately call your gas supplier
from a neighborʼs phone. Follow the
gas supplierʼs instructions.

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

C. Use only your hand to push in or turn the

gas control knob. Never use tools. If the
knob will not push in or turn by hand, donʼt
try to repair it, call a qualified service tech

­nician or gas supplier. Force or attempted
repair may result in a fire or explosion.

D. Do not use this appliance if any part has

been under water. Immediately call a
qualified service technician to inspect the
appliance and to replace any part of the
control system and any gas control which
has been under water.

LIGHTING

INSTRUCTIONS

WARNING:

• If fireplace has glass doors,
never operate this heater with
glass doors closed. If you op

­erate heater with doors closed,
heat buildup inside fireplace
will cause glass to burst. Make
sure there are no obstructions
across openings of fireplace.

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

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

Note: Home owners generally prefer to 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 donʼt
smell gas, go to the next step.

www.desatech.com

104415-01M20

OPERATING HEATER

Continued

5. Turn control knob counterclockwise
to the PILOT position. Press in control
knob for five (5) seconds (see Figure 25).

Note: You may be running this heater for

the first time after hooking up to gas sup

­ply. If so, the control knob may need to be
pressed in for 30 seconds or more. This will
allow air to bleed from the gas system.

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

• If control knob does not pop out when

released, contact a qualified service
person or gas supplier for repairs.

Note: If pilot goes out, repeat steps 3

through 7. This heater has a safety interlock
system. Wait one (1) minute for system to
reset before lighting pilot again.

8. Turn control knob counterclockwise
to desired heating level. The burners should
light. Set control knob to any heat level
between HI and LO.

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

TO TURN GAS OFF

TO APPLIANCE

Shutting Off Heater

Turn control knob clockwise to the OFF
position.

Shutting Off Burners Only (pilot stays lit)

Turn control knob clockwise

to the

PILOT position.

THERMOSTAT CONTROL

OPERATION

The thermostat control knob can be set to any
comfort level between HI and LO. The ther

­mostat will gradually modulate the heat output
and flame height from higher to lower settings
or pilot, in order to maintain the comfort level
you select. The ideal comfort setting will vary
by household depending upon the amount of
space to be heated, the output of the central
heating system, etc.

Note: Selecting the HI setting with the control
knob will cause the burner to remain fully on,
without modulating down in most cases.

MANUAL LIGHTING

PROCEDURE

1. Follow steps 1 through 5 under Lighting

Instructions, page 19.

2. Depress control knob and light pilot with

match.

3. Keep control knob pressed in for 30 seconds

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

PILOT

OFF

LO

HI

Figure 25 - Control Knob and Ignitor

Button Location

Control Knob

Ignitor Button

Figure 26 - Pilot

Ignitor Electrode

Thermocouple

Pilot Burner

www.desatech.com

104415-01M 21

OPERATING HEATER

Continued

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 neighborʼs phone. Follow the
gas supplierʼs instructions.

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

C. Use only your hand to push in or turn the

gas control knob. Never use tools. If the
knob will not push in or turn by hand, donʼt
try to repair it, call a qualified service tech

­nician or gas supplier. Force or attempted
repair may result in a fire or explosion.

D. Do not use this appliance if any part has

been under water. Immediately call a
qualified service technician to inspect the
appliance and to replace any part of the
control system and any gas control which
has been under water.

LIGHTING

INSTRUCTIONS

WARNING:

• If fireplace has glass doors,
never operate this heater with
glass doors closed. If you op

­erate heater with doors closed,
heat buildup inside fireplace
will cause glass to burst. Make
sure there are no obstructions
across openings of fireplace.

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

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

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

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

1. STOP! Read the safety information col­umn 1.

2. Make sure equipment shutoff valve is
fully open.

3. Press in and turn control knob clockwise

to the OFF position.

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 donʼt
smell gas, go to the next step.

www.desatech.com

104415-01M22

OPERATING HEATER

Continued

5. Press in control knob and turn counter­clockwise

to the PILOT position.
Keep control knob pressed in for five (5)
seconds (see Figure 27).

Note: You may be running this heater for

the first time after hooking up to gas sup

­ply. If so, the control knob may need to be
pressed in for 30 seconds or more. This will
allow air to bleed from the gas system.

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

Note: If pilot does not light, 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.

• If control knob does not pop out when

released, contact a qualified service
person or gas supplier for repairs.

Note: If pilot goes out, repeat steps 3

through 7.

8. Push in and turn control knob counter

­clockwise to the HI position. Both
burners should light. Set control knob to
desired setting.

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

PILOT

OFF

LO

HI

Figure 27 - Control Knob and Ignitor

Button Location

Control Knob

Ignitor Button

Figure 28 - Pilot

Ignitor Electrode

Thermocouple

Pilot Burner

VARIABLE CONTROL

OPERATION

The variable control valve can be set to any
heat setting and flame height desired, by sim

­ply turning the control knob until that setting
is attained. Even the lowest setting provides
realistic flames and glowing embers from two
burners. Selecting higher settings produces
greater heat output. This results in increased
heating comfort.

WARNING: Do not operate

heater between locked positions.

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

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Heater

1. Press in and turn control knob clockwise
to the HI position.

2. Turn the control knob clockwise

to

the PILOT position.

3. Press in control knob and turn clockwise
to the OFF position.

Shutting Off Burners Only (pilot stays lit)

1. Turn the control knob clockwise

to

the HI position.

2. Press in and turn control knob clockwise
to the PILOT position.

MANUAL LIGHTING

PROCEDURE

1. Follow steps 1 through 5 under Lighting

Instructions, page 21.

2. Depress control knob and light pilot with

match.

3. Keep control knob pressed in for 30 seconds

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

www.desatech.com

104415-01M 23

OPERATING HEATER

Continued

LIGHTING

INSTRUCTIONS

WARNING:

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

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

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

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

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

1. STOP! Read the safety information col­umn 1.

2. Make sure equipment shutoff valve is
fully open.

3. Set selector switch in the OFF position.

4. Press in and turn control knob clockwise

to the OFF position (see Figure 29,

page 24).

REMOTE-READY 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, per

-

sonal injury or loss of life.

A. This appliance has a pilot which must be

lighted by hand. When lighting the pilot,
follow these instructions exactly.

B. BEFORE LIGHTING smell all around the

appliance area for gas. Be sure to smell next
to the floor because some gas is heavier than
air and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

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

• Immediately call your gas supplier
from a neighborʼs phone. Follow the
gas supplierʼs instructions.

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

C. Use only your hand to push in or turn the

gas control knob. Never use tools. If the
knob will not push in or turn by hand, donʼt
try to repair it, call a qualified service tech

­nician or gas supplier. Force or attempted
repair may result in a fire or explosion.

D. Do not use this appliance if any part has

been under water. Immediately call a
qualified service technician to inspect the
appliance and to replace any part of the
control system and any gas control which
has been under water.

www.desatech.com

104415-01M24

WARNING: Burners will
come on automatically within
one minute when the selector
switch is in the ON position after
the pilot is lit.

5. 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, starting in column 1,
page 23. If you donʼt smell gas, go to the
next step.

6. Press in and turn control knob counter

-

clockwise

to the PILOT position.
Press in control knob for five (5) seconds
(see Figure 29).

Note: You may be running this heater for

the first time after hooking up to gas sup

­ply. If so, the control knob may need to be
pressed in for 30 seconds or more. This will
allow air to bleed from the gas system.

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

Note: If pilot does not stay lit, contact a

qualified service person or gas supplier for
repairs. Until repairs are made, light pilot
with match. To light pilot with match, see
Manual Lighting Procedure, page 25.

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

• If control knob does not pop out when

released, contact a qualified service
person or gas supplier for repairs.

Note: If pilot goes out, repeat steps 4

through 8.

9. Slightly push in and turn control knob coun

-

terclockwise

to the ON position.

10. Wait one minute and switch selector switch
to the ON position to light burners. Note:
AUTO is only functional when using
GWMT1 or GWMS2 optional accessories.

11. Set flame adjustment knob to any level
between HI and LO.

OPERATING HEATER

Continued

O

F

F

L

O

I

H

AUTO
OFF
ON

P

I

L

O

T

O

N

Figure 29 - Control Knob and Ignitor

Button Location

Control Knob

Ignitor Button

Selector Switch
in OFF Position

Flame Adjustment Knob

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

WARNING: Make sure the
selector switch is in the OFF
position when you are away from
home for long periods of time.
Heater will come on automati­cally with selector switch in the
ON position.

Figure 30 - Pilot

(Propane/LP)

Ignitor
Electrode

Pilot
Burner

Figure 31 - Pilot

(Natural)

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Heater

1. Turn control knob clockwise to the
OFF position.

2a. Set selector switch in the OFF position.
2b. If Using Optional Hand-Held Remote: Set se-

lector switch in the OFF position to prevent
draining battery.

Shutting Off Burners Only (pilot stays lit)

You may shut off the burners and keep the pilot
lit by doing one of the following:

1. Turn control knob clockwise

to the

PILOT position.

2. Use remote control manual OFF button.

3. Set selector switch in the OFF position.

Ignitor
Electrode

Pilot
Burner

www.desatech.com

104415-01M 25

OPERATING HEATER

Continued

MANUAL LIGHTING

PROCEDURE

1. Follow steps 1 through 6 under Lighting
Instructions beginning on page 23.

2. Depress control knob and light pilot with
match.

3. Keep control knob pressed in for 30 seconds
after lighting pilot. After 30 seconds, release
control knob. Now follow steps 9 through
24 under

Lighting Instructions, page 24.

OPTIONAL HAND-HELD

REMOTE OPERATION

Note: All remote control accessories must be
purchased separately (see Accessories, page

42). Follow instructions included with the

remote control.

NOTICE: You must light the pilot
before using the hand-held re­mote control unit. See Lighting
Instructions on page 23.

After lighting, let pilot flame burn for about one
minute. Turn control knob to ON position. Adjust
flame adjustment knob anywhere between HI and
LO. Slide the selector switch to the REMOTE
position (see Figure 32).

Note: The burner may
light if hand-held remote was on when selector
switch was last turned off. You can now turn the
burner on and off with the hand-held remote
control unit.

IMPORTANT: Do not leave the selector switch
in the REMOTE or ON position when the pilot
is not lit. This will drain the battery.

ON/OFF SERIES (MODEL GHRCB)

Hold the control button on the hand-held remote
until burner turns on. Hold the control button
again until burner turns off (see Figure 33).

TO LOCK

press both buttons on hand-held
remote control until light stops flashing. Hand­held remote control is now locked. If the fire is
on it will be turned off automatically. In the
locked state, the light will not light up when
any button is pressed.

TO UNLOCK

press both buttons together
on hand-held remote control until the light
stops flashing. The hand-held remote is now
unlocked.

O

F

F

P

I

L

O

T

L

O

I

H

ON
OFF
REMOTE

O

N

Control Knob
in ON Position Flame Adjustment Knob

Figure 32 - Setting the Selector Switch,

Control Knob, and Flame Adjustment

Knob for Remote Operation

Selector Toggle Switch (Optional
Hand-Held Remote Control)

Figure 33 - On/Off Hand-Held Remote

Control Unit (GHRCB)

Control Button
Turns Burners
On and Off

THERMOSTAT SERIES (MODEL
GHRCTB)

The hand-held remote can be operated using
either the manual mode (MANU) or thermo­static mode (AUTO) (see Figure 34). To select
Fahrenheit/Centigrade mode display, carefully
press the ˚C/˚F mode button with the end of a
paper clip or similar blunt object.

Turns
Hand-Held
Remote On
or Off and
Allows You
to Choose
the Manual
Setting

Selects Auto
Setting

Increases
Room
Temperature
in AUTO
Mode

Digital
Display
Shows
Temperature
and Settings

Turns
Burners On
or Off

Decreases
Room
Temperature
in AUTO
Mode

Figure 34 - Thermostat Hand-Held

Remote Control Unit (GHRCTB)

Locks System to
Prevent Accidental
Ignition

www.desatech.com

104415-01M26

OPERATING HEATER

Continued

Manual Mode

1. Press the POWER and LOCK buttons
together to turn on the hand-held remote
control.

2. Press the MANU button to turn on the
fireplace.

3. Press the POWER and LOCK buttons
together to turn off the fireplace.

Auto (Thermostatic) Mode

1. Press the POWER and LOCK buttons
together to turn on the hand-held remote
control.

2. Press AUTO button to select this mode.

3. Set the desired room temperature by press­ing the TEMP + or - buttons.

4. Press the POWER and LOCK buttons
together to turn off the fireplace

Note: Do not leave the hand-held remote in the
AUTO mode close to the fireplace. The radiant
heat from the fireplace will turn off the fireplace.
Ideally, place the hand-held remote in the center
of the room facing towards the fireplace.

Note: Do not hold the hand-held remote for
a long time. Body temperature will affect its
operation in the AUTO mode.

Safety Features

When away from home for an extended period
of time or as a child safety feature to prevent
accidental ignition of the fireplace, the receiver
ON/OFF/REMOTE switch should be in the
OFF position.

Auto Shutoff Feature

1. If the average room temperature exceeds
82 degrees Fahrenheit (28 degrees Centi­grade), the hand-held remote control will
perform a safety override and shut the
fireplace off. This feature is not available
in the MANU mode.

2. The receiver continuously receives signals
from the hand-held remote to control the
room temperature. If the hand-held remote
is misplaced, obstructed or for any reason
cannot transmit to the receiver, the receiver
will shut off the fireplace after 8 minutes.

Key Pad Lock Feature

This feature allows the user to lock/unlock
the keypad on the hand-held remote in the
MANU or AUTO mode to prevent inadvertent
operation (i.e. children operating the hand-held
remote control, etc.). The keypad is locked in
either on or off. Press the POWER and LOCK
buttons together to turn the unit on or off.

INSPECTING BURNERS

Check pilot flame pattern and burner flame pat­terns often.

PILOT FLAME PATTERN

Figure 35 shows a correct pilot flame pattern. Figure
36 shows an incorrect pilot flame pattern. The incor

­rect 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 36

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

-

ance, page 20 [Thermostat-Controlled Models],

page 22 [Manually-Controlled Models] or page
24 [Remote-Ready Models])

• see Troubleshooting

, page 29

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

Figure 35 - Correct Pilot Flame Pattern

(Your pilot may vary from pilots shown)

Thermocouple

Thermocouple

Pilot
Burner

Figure 36 - Incorrect Pilot Flame Pattern

(Your pilot may vary from pilots shown)

Thermocouple

Thermocouple

Pilot
Burner

www.desatech.com

104415-01M 27

Figure 37 - Correct Front Burner Flame

Pattern

CORRECT FLAME PATTERN AT HIGH POSITION

Figure 38 - Incorrect Front Burner Flame

Pattern

Yellow Tipping At
Top of Blue Flame

FRONT BURNER FLAME PATTERN

Figure 37 shows correct front burner flame pat­tern. Figure 38 shows incorrect front burner flame
pattern. The incorrect burner flame pattern shows
yellow tipping at top of blue flame.

WARNING: If yellow tipping
occurs, your heater could pro­duce increased levels of carbon
monoxide. If front burner flame
pattern shows yellow tipping,
follow instructions at bottom of
this page. Yellow flame on rear
burner is normal.

NOTICE: Do not mistake orange
flames with yellow tipping. Dirt
or other fine particles are burned
by heater, causing brief patches
of orange flame.

If front burner flame pattern is incorrect, as shown
in Figure 38

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

-

ance, page 20 [Thermostat-Controlled Models],

page 22 [Manually-Controlled Models], or page
24 [Remote-Ready Models])

• see Troubleshooting

, page 29

INSPECTING BURNERS

Continued

CLEANING AND

MAINTENANCE

WARNING: Turn off heater

and let cool before cleaning.

CAUTION: You must keep
control areas, burners, 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, pet hair, bedding
material, 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 com

­pressed air in a can, please follow the directions on
the can. If you donʼt follow directions on the can,
you could damage the pilot assembly.

1. Shut off the unit, including the pilot. Allow

the unit to cool for at least thirty minutes.

www.desatech.com

104415-01M28

2. Inspect burner, pilot, and primary air inlet
holes on injector holder for dust and dirt (see
Figure 39).

3. Blow air through the ports/slots and holes in
the burner.

4. Check the injector holder located at the end
of the burner tube again. Remove any large
particles of dust, dirt, lint, or pet hair with a
soft cloth or vacuum cleaner nozzle.

5. Blow air into the primary air holes on the
injector holder.

6. In case any large clumps of dust have now been
pushed into the burner repeat steps 3 and 4.

Clean the pilot assembly also. A yellow tip on the
pilot flame indicates dust and dirt in the pilot as

­sembly. There is a small pilot air inlet hole about
two inches from where the pilot flame comes out
of the pilot assembly (see Figure 40). With the unit
off, lightly blow air through the air inlet hole. You
may blow through a drinking straw if compressed
air is not available.

Figure 39 - Injector Holder On Outlet

Burner Tube

Burner Tube

Injector Holder

Primary Air Inlet Holes

Ports/Slots

Figure 40 - Pilot Inlet Air Hole (Your pilot

may vary from pilots shown)

Pilot Assembly

Pilot Assembly

Pilot Air Inlet Hole

Pilot Assembly

Pilot Air
Inlet Hole

LOGS

• If you remove logs for cleaning, refer to Install­ing Logs, page 17, 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.

CLEANING AND

MAINTENANCE

Continued

www.desatech.com

104415-01M 29

TROUBLESHOOTING

WARNING: Turn off and unplug heater and let cool before servicing.

Only a qualified service person should service and repair heater.

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

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

Note: All troubleshooting items are listed in order of operation.

POSSIBLE CAUSE

1. Ignitor electrode not 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 positioned
wrong

7. Ignitor electrode broken

1. Gas supply turned off or equip

-

ment shutoff valve closed

2. Control knob not in PILOT
position

3. Control knob not pressed in
while in PILOT position

4. Air in gas lines when in­stalled

5. Depleted gas supply (pro

-

pane/LP only)

6. ODS/pilot is clogged

7. Gas regulator setting is not
correct

OBSERVED PROBLEM

When ignitor button is pressed,
there is no spark at ODS/pilot

When ignitor button is pressed,
there is spark at ODS/pilot but
no ignition

REMEDY

1. Reconnect ignitor cable

2. Free ignitor cable if pinched
by any metal or tubing. Keep
ignitor cable dry

3.

Tighten nut holding piezo 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 op

-

eration until air is removed

5. Contact local propane/LP gas
company

6. Clean ODS/pilot (see Cleaning
and Maintenance, page 27) or
replace ODS/pilot assembly

7. Replace gas regulator

www.desatech.com

104415-01M30

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

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

One or both burners do not light
after ODS/pilot is lit

Delayed ignition of one or both
burners

Burner backfiring during com

-

bustion

REMEDY

1. Press in control knob fully

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

3. Wait one minute for safety in­terlock system to reset. Repeat
ignition operation

4. Fully open equipment shutoff
valve

5. A) Contact local natural or
propane/LP gas company

B) Cl ean ODS/p i lot (see

Cleaning and Maintenance,
page 27) or replace ODS/pilot
assembly

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

7. Replace pilot assembly

8. Replace control valve

1. Contact local natural or pro

-

pane/LP gas company

2. Clean burner(s) (see Cleaning
and Maintenance, page 27) or
replace burner orifice(s)

3.

Contact qualified service person

4. Put remote selector in ON
position

5. See Wiring Diagram, page 29

1. Contact local natural or pro

-

pane/LP gas company

2. Clean burner(s) (see Cleaning
and Maintenance, page 27) or
replace burner orifice(s)

3.

Contact qualified service person

1. Clean burner (see Cleaning
and Maintenance, page 27) or
replace burner orifice

2. Replace damaged burner

3. Replace gas regulator

POSSIBLE CAUSE

1.

Control knob not fully pressed in

2. Control knob not pressed in
long enough

3. Safety interlock system has
been triggered

4. Equipment shutoff valve not
fully open

5. Pilo t flam e not touchi ng
thermocouple, which allows
thermocouple to cool, caus

­ing pilot flame to go out. This
problem could be caused by
one or both of the following:

A) Low gas pressure
B) Dirty or partially clogged

ODS/pilot

6. Thermocouple connection
loose at control valve

7. Thermocouple damaged

8. Control valve damaged

1. Inlet gas pressure is too low

2. Burner orifice(s) clogged

3. Mislocated crossover tube

4. Remote selector in OFF posi

­tion (Remote-Ready Models
Only)

5. Wire disconnected from gas
control (Remote-Ready Mod­els Only)

1. Manifold pressure is too low

2. Burner orifice(s) clogged

3. Mislocated crossover tube

1. Burner orifice is clogged or
damaged

2. Damaged burner

3. Gas regulator defective

www.desatech.com

104415-01M 31

OBSERVED PROBLEM

Yellow flame in front burner dur­ing burner combustion

Slight smoke or odor during initial
operation

Heater produces a whistling noise
when burners are lit

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

Moisture/condensation noticed
on windows

Remote does not function (Re

-

mote-Ready Models Only)

Heater produces a clicking/tick

­ing noise just after burners are lit
or shut off

POSSIBLE CAUSE

1. Not enough air

2. Gas regulator defective

1. Residues from manufacturing
processes and logs curing

1.

Turning control knob to HI po­sition when burners are cold

2. Air in gas line

3. Air passageways on heater
blocked

4. Dirty or partially clogged
burner orifice(s)

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

1. Not enough combustion/ven

-

tilation air

1. Battery is not installed. Bat

-

tery power is low

1. Metal expanding while heat

­ing or contra cti ng whil e
cooling

REMEDY

1. C heck bu r n e r(s) for d irt
and debris. If found, clean
burner(s) (see Cleaning and
Maintenance, page 27)

2. Replace gas regulator

1. Problem will stop after a few
hours of operation

1.

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

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

3. Observe minimum installation
clearances (see page 9)

4. Clean burners (see Cleaning
and Maintenance, page 27) or
replace burner orifice(s)

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

1. Refer to Air for Combustion
and Ventilation requirements
(page 6)

1. Replace 9-volt batteries in re

-

ceiver and hand-held remote

1. This is common with most heat

­ers. If noise is excessive, contact
qualified service person

TROUBLESHOOTING

Continued

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104415-01M32

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: Operating heater where impurities in air exist may create odors. Cleaning supplies, paint,
paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc., create fumes. These
fumes may mix with combustion air and create odors. These odors will disappear over time.

POSSIBLE CAUSE

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

2. Low fuel supply (propane/LP
only)

3. Gas leak. See Warning

statement at top of page

1. Not enough fresh air is avail

-

able

2. Low line pressure

3. O DS /pi l ot i s pa r tia l ly
clogged

1. Gas leak. See Warning

statement at top of page

2. Control valve or gas control
defective

1. Foreign matter between con

-

trol valve and burner

2. Gas leak. See Warning

statement at top of page

1. Ther most at sensing bu lb
ne eds to be repo sitione d
(Th e r m o st a t -C o nt r o ll e d
Models Only)

2. Hand-held remote control is
too close to heater (Remote­Ready Models Only)

REMEDY

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

2. Refill supply tank (propane/LP
only)

3. Locate and correct all leaks
(see Checking Gas Connec-
tions, page 16)

1. Open window and/or door for
ventilation

2. Contact local natural or pro

-

pane/LP gas company

3. Clean ODS/pilot (see Cleaning
and Maintenance, page 27)

1. Locate and correct all leaks
(see Checking Gas Connec

-

tions, page 16)

2. Replace control valve or gas
control

1. Take apart gas tubing and
remove foreign matter

2. Locate and correct all leaks
(see Checking Gas Connec

-

tions, page 16)

1. Reposition thermostat sensing
bulb (see Instructions for Op

-

tional Positioning of Thermo

-

stat Sensing Bulb, page 33)

2. Move hand-held remote con

­trol unit farther away from the
heater

OBSERVED PROBLEM

He ater pr oduces unwante d
odors

Heater shuts off in use (ODS
operates)

Gas odor even when control knob
is in OFF position

Gas odor during combustion

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

www.desatech.com

104415-01M 33

OPTIONAL POSITIONING

OF THERMOSTAT

SENSING BULB

(Thermostat-Controlled Models Only)

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 on the gas
valve assembly. This location allows the ther

­mostat 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
(see Figure 42).

Tools needed: 5/16" hex driver or socket

1. Locate the gas valve assembly and thermostat

sensing bulb (see Figure 41).

2. With 5/16" hex driver or socket, loosen the

thermostat screw. Carefully slide the thermo

-

stat sensing bulb out of the retaining clamp
(see Figure 43).

Note: Do not remove the screw. Make sure

you tighten the screw after removing the
thermostat sensing bulb.

IMPORTANT: Do not force or bend the

thermostat sensing bulb or capillary.

3. The thermostat sensing bulb may be located

to the lower right front side of fireplace. De

-

termine location of sensing bulb, but do not
mount sensing bulb until step 4, page 34. If
you have a masonry fireplace, see Figure 44
for location.

If you have a factory-built metal fireplace, see

Figure 45 for location.

If your fireplace has glass doors, position

sensing bulb directly behind door gap on right
bottom side (see Figure 46).

Figure 41 - Location of Gas Valve

Assembly and Thermostat Sensing Bulb

Thermostat
Sensing Bulb

Gas Valve
Assembly

Capillary

Screw

Retaining Clamp

Thermostat
Sensing Bulb

Figure 42 - Adhesive-backed Mounting

Clip

Figure 43 - Removing Thermostat

Sensing Bulb

Figure 44 - Locating Thermostat Sensing

Bulb on Masonry Fireplace

Figure 45 - Locating Thermostat Sensing

Bulb on Factory-built Metal Fireplace

Adhesive­backed
Mounting
Clip

Thermostat
Sensing Bulb

Adhesive­backed
Mounting Clip

Thermostat
Sensing Bulb

Figure 46 - Installing Thermostat Sensing

Bulb behind Glass Doors

Adhesive­backed
Mounting Clip

Glass Doors

Thermostat
Sensing Bulb

www.desatech.com

104415-01M34

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

IMPORTANT: Do not crimp capillary.

OPTIONAL POSITIONING

OF THERMOSTAT

SENSING BULB

Continued

Figure 47 - Positioning the Thermostat

Sensing Bulb in the Vertical Position

with the Capillary at the Bottom

Capillary

Thermostat
Sensing Bulb

Do Not Crimp
Capillary

Adhesive­backed
Mounting Clip

SERVICE HINTS

When Gas Pressure Is Too Low

• pilot will not stay lit

• burners will have delayed ignition

• heater will not produce specified heat

• propane/LP gas supply may be low

You may feel your gas pressure is too low. If so, con

-

tact your local propane/LP or natural gas supplier.

TECHNICAL SERVICE

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

You can also visit DESA Heating Productsʼ techni

-

cal services web site at www.desatech.com.

REPLACEMENT PARTS

Note: Use only original replacement parts. This
will protect your warranty coverage for parts
replaced under warranty.

PARTS UNDER WARRANTY

Contact authorized dealers of this product. If
they canʼt supply original replacement part(s),
call DESA Heating Productsʼ Technical Service
Department at 1-866-672-6040.

When calling DESA Heating Products, have
ready

• your name

• your address

• model and serial numbers of your heater

• how heater was malfunctioning

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

• purchase date

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

PARTS NOT UNDER WARRANTY

Contact authorized dealers of this product. If they
canʼt supply original replacement part(s), call
DESA Heating Products at 1-866-672-6040 for
referral information.

When calling DESA Heating Products, have
ready

• model number of your heater

• the replacement part number

A

U

T

O

O

F

F

ON

WIRING DIAGRAM

(Remote-Ready Models Only)

www.desatech.com

104415-01M 35

SPECIFICATIONS

Thermostat-Controlled Models

18" 24" 30"

Btu (Variable) 16,000/26,000 20,000/33,000 21,500/36,000

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

Ignition Piezo Piezo Piezo Piezo Piezo Piezo

Manifold Pressure 7.9" W.C. 3.4" W.C. 7.9" W.C. 3.4" W.C. 7.9" W.C. 3.4" W.C.

Inlet Gas Pressure (in. of water)
Maximum 14" 10.5" 14" 10.5" 14" 10.5"
Minimum* 11" 5" 11" 5" 11" 5"

Shipping Weight 26 lbs. 30 lbs. 34 lbs.

* For purpose of input adjustment

Variable Manually-Controlled Models

18" 24" 30"

Btu (Variable) 16,000/26,000 20,000/33,000 21,500/36,000

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

Ignition Piezo Piezo Piezo Piezo Piezo Piezo

Manifold Pressure 7.9" W.C. 3.4" W.C. 7.9" W.C. 3.4" W.C. 7.9" W.C. 3.4" W.C.

Inlet Gas Pressure (in. of water)
Maximum 14" 10.5" 14" 10.5" 14" 10.5"
Minimum* 11" 5" 11" 5" 11" 5"

Shipping Weight 26 lbs. 30 lbs. 34 lbs.

* For purpose of input adjustment

Remote-Ready Models

18" 24" 30"

Btu (Variable) 16,000/26,000 20,000/33,000 21,500/36,000

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

Ignition Piezo Piezo Piezo Piezo Piezo Piezo

Manifold Pressure 7.9" W.C. 3.4" W.C. 7.9" W.C. 3.4" W.C. 7.9" W.C. 3.4" W.C.

Inlet Gas Pressure (in. of water)
Maximum 14" 10.5" 14" 10.5" 14" 10.5"
Minimum* 11" 5" 11" 5" 11" 5"

Shipping Weight 32 lbs. 34 lbs. 36 lbs.

* For purpose of input adjustment

www.desatech.com

104415-01M36

17

19

18

25

24

20

20

28

26

27

5

6

9

9

7

27

27

24

10

11

12

14

21

22

8

23

6-1

6-2

13

15

16

1a

1b

24" and 30"

Models Only

29

4

3

2

1

18" Model Only

ILLUSTRATED PARTS BREAKDOWN

VARIABLE MANUALLY-CONTROLLED SPLIT OAK MODELS

VS18NVC, E18N, VS18PVC, E18P, VS24NVC, E24N, VS24PVC, E24P,
VS30NVC AND VS30PVC

www.desatech.com

104415-01M 37

PARTS LIST

VARIABLE MANUALLY-CONTROLLED SPLIT OAK MODELS

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions
listed under Replacement Parts on page 34 of this manual.

PART NUMBER
KEY VS18NVC VS18PVC VS24NVC VS24PVC VS30NVC VS30PVC

NO. E18N E18P E24N E24P DESCRIPTION QTY

1 104388-01 104388-01 — — — — Front Log (#1) 1
1a — — 104388-05 104388-05 104388-07 104388-07 Front Left Log (#1a) 1
1b — — 104388-04 104388-04 104388-06 104388-06 Front Right Log (#1b) 1
2 104390-01 104390-01 104390-02 104390-02 104390-03 104390-03 Middle Log (#2) 1
3 104392-01 104392-01 104392-02 104392-02 104392-03 104392-03 Rear Log (#3) 1
4 104394-01 104394-01 104394-02 104394-02 104394-03 104394-03 Crossover Log (#4) 1
5 101006-02 101006-02 101006-02 101006-02 101006-02 101006-02 Pilot Bracket 1
6 101330-01 101330-01 101330-05 101330-05 101330-06 101330-06 Front Burner Assembly 1
6-1 101008-01 101008-01 101008-01 101008-01 101008-01 101008-01 Crossover Burner Gasket 1
6-2 101007-01 101007-01 101007-01 101007-01 101007-01 101007-01 Crossover Burner 1
7 109824-01 109824-01 109824-02 109824-02 109824-03 109824-03 Rear Burner Assembly 1
8 108139-01 108139-01 108139-02 108139-02 108139-03 108139-03 Grate Assembly 1
9 108138-01 108138-01 108138-01 108138-01 108138-01 108138-01 Saddle Bracket 2
10 102223-01 102223-01 102223-02 102223-02 102223-03 102223-03 Base Pan 1
11 098867-09 098867-10 098867-09 098867-10 098867-09 098867-10 Gas Regulator 1
12 M11084-38 M11084-38 M11084-38 M11084-38 M11084-38 M11084-38 Screw 2
13 101011-01 101011-01 101011-02 101011-02 101011-03 101011-03 Inlet Tube 1
14 098354-01 098354-01 098354-01 098354-01 098354-01 098354-01 Control Knob 1
15 098462-03 098462-03 098462-03 098462-03 098462-03 098462-03 Control Rod 1
16 098325-01 098325-01 098325-01 098325-01 098325-01 098325-01 Roll Pin 1
17 098508-01 098508-01 098508-01 098508-01 098508-01 098508-01 Valve Retainer Nut 1
18 102568-07 102568-08 102568-05 102568-06 102568-05 102568-06 Gas Valve 1
19 101005-01 101005-01 101005-01 101005-01 101005-01 101005-01 Valve Bracket 1
20 M11084-26 M11084-26 M11084-26 M11084-26 M11084-26 M11084-26 Screw 4
21 101004-11 101004-10 101004-11 101004-01 101004-04 101004-02 Rear Burner Injector 1
22 101004-11 101004-10 101004-08 101004-02 101004-08 101004-06 Front Burner Injector 1
23 102258-01 102258-01 102258-01 102258-01 102258-01 102258-01 Burner Tube 1
24 099387-08 099387-08 099387-08 099387-08 099387-08 099387-08 Pilot Tube 1
25 098276-01 098276-01 098276-01 098276-01 098276-01 098276-01 1/8” Plug 1
26 107485-01* 107486-01* 107485-01* 107486-01* 107485-01* 107486-01* O.D.S. Pilot 1
27 098249-01 098249-01 098249-01 098249-01 098249-01 098249-01 Nut 4
28 098271-10 098271-10 098271-06 098271-06 098271-06 098271-06 Ignitor Cable 1
29 102445-01 102445-01 102445-01 102445-01 102445-01 102445-01 Piezo Ignitor 1

PARTS AVAILABLE — NOT SHOWN

100563-01 100563-01 100563-01 100563-01 100563-01 100563-01 Warning Plate 1
101055-02 101055-02 101055-02 101055-02 101055-02 101055-02 Lighting Instructions Plate 1
100565-01 100565-01 100565-01 100565-01 100565-01 100565-01 Warning Plate Fastener 1
100639-01 100639-01 100639-01 100639-01 100639-01 100639-01 Caution Decal 1
101137-03 101137-01 101137-03 101137-01 101137-03 101137-01 Hardware Kit 1
GA6060 GA6060 GA6060 GA6060 GA6060 GA6060 Lava Rock 1

* If replacing ODS pilot and your model is pre 2002, your part number will be 103042-01 for natural gas models,
099059-02 for propane/LP gas models.

www.desatech.com

104415-01M38

ILLUSTRATED PARTS BREAKDOWN

THERMOSTAT-CONTROLLED MODELS

VS18NTB, VS18PTB, VS24NTB, VS24PTB,
VS30NTB and VS30PTB

30

5

24

7

8

9

10

7

7

13

31

32

14

15

17

16

18

23

25

26

11

28

21

22

20

27

19

29

9-1

9-2

12

12

1a

1b

24" and 30"

Models Only

5

31

6

28

4

3

2

1

18" Model Only

www.desatech.com

104415-01M 39

PARTS LIST

THERMOSTAT-CONTROLLED MODELS

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions
listed under Replacement Parts on page 34 of this manual.

KEY PART NUMBER
NO. VS18NTB VS18PTB VS24NTB VS24PTB VS30NTB VS30PTB DESCRIPTION

QTY

1 104388-01 104388-01 — — — — Front Log (#1) 1
1a — — 104388-05 104388-05 104388-07 104388-07 Front Left Log (#1a) 1
1b — — 104388-04 104388-04 104388-06 104388-06 Front Right Log (#1b) 1
2 104390-01 104390-01 104390-02 104390-02 104390-03 104390-03 Middle Log (#2) 1
3 104392-01 104392-01 104392-02 104392-02 104392-03 104392-03 Rear Log (#3) 1
4 104394-01 104394-01 104394-02 104394-02 104394-03 104394-03 Crossover Log (#4) 1
5 M11084-26 M11084-26 M11084-26 M11084-26 M11084-26 M11084-26 Screw 5
6 107485-01* 107486-01* 107485-01* 107486-01* 107485-01* 107486-01* O.D.S. Pilot 1
7 098249-01 098249-01 098249-01 098249-01 098249-01 098249-01 Nut 4
8 101006-02 101006-02 101006-02 101006-02 101006-02 101006-02 Pilot Bracket 1
9 101330-01 101330-01 101330-05 101330-05 101330-06 101330-06 Front Burner Assembly 1
9-1 101008-01 101008-01 101008-01 101008-01 101008-01 101008-01 Gasket, Crossover Burner 1
9-2 101007-01 101007-01 101007-01 101007-01 101007-01 101007-01 Crossover Burner 1
10 109824-01 109824-01 109824-02 109824-02 109824-03 109824-03 Rear Burner Assembly 1
11 108139-01 108139-01 108139-02 108139-02 108139-03 108139-03 Grate Assembly 1
12 108138-01 108138-01 108138-01 108138-01 108138-01 108138-01 Saddle Bracket 2
13 102223-01 102223-01 102223-02 102223-02 102223-03 102223-03 Base Pan 1
14 098867-09 098867-10 098867-09 098867-10 098867-09 098867-10 Gas Regulator 1
15 M11084-38 M11084-38 M11084-38 M11084-38 M11084-38 M11084-38 Screw 2
16 102810-01 102810-01 102810-02 102810-01 102810-03 102810-03 Inlet Tube 1
17 098354-01 098354-01 098354-01 098354-01 098354-01 098354-01 Control Knob 1
18 098462-03 098462-03 098462-03 098462-03 098462-03 098462-03 Control Rod 1
19 100000-01 100000-01 100000-01 100000-01 100000-01 100000-01 Cotter Pin 1
20 101053-01 101053-01 101053-01 101053-01 101053-01 101053-01 Adapter 1
21 099211-01 099211-01 099211-01 099211-01 099211-01 099211-01 Screw 1
22 098544-01 098544-01 098544-01 098544-01 098544-01 098544-01 Thermostat Clamp 1
23 101329-14 101329-15 101329-25 101329-18 101329-25 101329-21

Thermostat Gas Valve Assy.

1
24 100994-01 100994-01 100994-01 100994-01 100994-01 100994-01 Thermovalve Bracket 1
25 101004-11 101004-10 101004-11 101004-01 101004-04 101004-02 Rear Burner Injector 1
26 101004-11 101004-10 101004-08 101004-02 101004-08 101004-06 Front Burner Injector 1
27 102811-01 102811-01 102811-01 102811-01 102811-01 102811-01 Thermostat Burner Tube 1
28 099387-09 099387-09 099387-09 099387-09 099387-09 099387-09 Pilot Tube 1
29 102255-01 102255-01 102255-01 102255-01 102255-01 102255-01 Strap 1
30 102764-01 102764-01 102764-01 102764-01 102764-01 102764-01 Heat Shield 1
31 098271-10 098271-10 098271-06 098271-06 098271-06 098271-06 Ignitor Cable 1
32 102445-01 102445-01 102445-01 102445-01 102445-01 102445-01 Piezo Ignitor 1

PARTS AVAILABLE — NOT SHOWN

100563-01 100563-01 100563-01 100563-01 100563-01 100563-01 Warning Plate 1
101054-01 101054-01 101054-01 101054-01 101054-01 101054-01 Lighting Instructions Plate 1
100565-01 100565-01 100565-01 100565-01 100565-01 100565-01 Warning Plate Fastener 1
100639-01 100639-01 100639-01 100639-01 100639-01 100639-01 Caution Decal 1
101137-01 101137-01 101137-01 101137-01 101137-01 101137-01 Hardware Kit 1
GA6060 GA6060 GA6060 GA6060 GA6060 GA6060 Lava Rock 1
102030-01 102030-01 102030-01 102030-01 102030-01 102030-01

Auxiliary Thermostat Mtg. Clip

1

* If replacing ODS pilot and your model is pre 2002, your part number will be 107485-01 for natural gas models,
107486-01 for propane/LP gas models.

www.desatech.com

104415-01M40

ILLUSTRATED PARTS BREAKDOWN

REMOTE-READY VARIABLE CONTROL MODELS

VS18NRA, E18NR, VS18PRA, E18PR, VS24NRA, E24NR, VS24PRA, E24PR,
VS30NRA, E30NR, VS30PRA AND E30PR

4

3

2

1

18" Model Only

1a

1b

24" and 30"

Models Only

22

12

13

20

19

14

21

17

18

16

23

30

15

27

25

5

28

29

26

5

7

8

10

9-1

9-2

7

9

5

6

24

7

11

31

32

31

Items 23 and 30
Are For Natural
Gas Models Only

www.desatech.com

104415-01M 41

PARTS LIST

REMOTE-READY VARIABLE CONTROL

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions
listed under Replacement Parts on page 34 of this manual.

PART NUMBERS
KEY VS18NRA VS18PRA VS24NRA VS24PRA VS30NRA VS30PRA

NO. E18NR E18PR E24NR E24PR E30NR E30PR DESCRIPTION QTY

1 104388-01 104388-01

__ __ __ __

Front Log (#1) 1

1a

__ __

104388-05 104388-05 104388-07 104388-07 Front Log, Left (#1a) 1

1b

__ __

104388-04 104388-04 104388-06 104388-06 Front Log, Right (#1b) 1
2 104390-01 104390-01 104390-02 104390-02 104390-03 104390-03 Middle Log (#2) 1
3 104392-01 104392-01 104392-02 104392-02 104392-03 104392-03 Rear Log (#3) 1
4 104394-01 104394-01 104394-02 104394-02 104394-03 104394-03 Crossover Log (#4) 1
5 M11084-26 M11084-26 M11084-26 M11084-26 M11084-26 M11084-26 Screw 6
6 103779-01 103778-01 103779-01 103778-01 103779-01 103778-01 O.D.S. Pilot 1
7 098249-01 098249-01 098249-01 098249-01 098249-01 098249-01 Nut 6
8 103780-01 103780-01 103780-01 103780-01 103780-01 103780-01 Pilot Bracket 1
9 101330-01 101330-01 101330-05 101330-05 101330-06 101330-06 Front Burner Assembly 1
9-1 101008-01 101008-01 101008-01 101008-01 101008-01 101008-01

Crossover Burner Gasket

1
9-2 101007-01 101007-01 101007-01 101007-01 101007-01 101007-01 Crossover Burner 1
10 109824-01 109824-01 109824-02 109824-02 109824-03 109824-03 Rear Burner Assembly 1
11 103775-02 103775-02 103775-01 103775-01 103775-03 103775-03 Base Pan 1
12 098271-10 098271-10 098271-06 098271-06 098271-06 098271-06 Ignitor Cable 1
13 102445-01 102445-01 102445-01 102445-01 102445-01 102445-01 Piezo Ignitor 1
14 103588-01 103588-01 103588-01 103588-01 103588-01 103588-01 Heat Shield 1
15 103782-01 103782-01 103782-01 103782-01 103782-01 103782-01 Valve Bracket 1
16 M12461-26 M12461-26 M12461-26 M12461-26 M12461-26 M12461-26 Screw 5
17 103781-01 103781-02 103781-01 103781-02 103781-01 103781-02 Gas Control 1
18 098264-02 098264-02 098264-02 098264-02 098264-02 098264-02 Male Fitting 1
19 103784-02 103784-02 103784-02 103784-02 103784-02 103784-02 Flame Adjustment Knob 1
20 103784-01 103784-01 103784-01 103784-01 103784-01 103784-01 Control Knob 1
21 103587-01 103587-01 103587-01 103587-01 103587-01 103587-01 Switch Plate 1
22 M11084-26 M11084-26 M11084-26 M11084-26 M11084-26 M11084-26 Screw 2
23 099387-12

__

099387-12

__

099387-12

__

Pilot Tube 1
24 100609-01 099387-09 100609-01 099387-09 100609-01 099387-09 Pilot Tube 1
25 101004-11 101004-10 101004-11 101004-01 101004-04 101004-02 Rear Burner Injector 1
26 101004-11 101004-10 101004-08 101004-02 101004-08 101004-06 Front Burner injector 1
27 103783-01 103783-01 103783-01 103783-01 103783-01 103783-01 Remote Burner Tube 1
28 099998-01 099998-01 099998-01 099998-01 099998-01 099998-01 Switch 1
29 103284-02 103284-02 103284-02 103284-02 103284-02 103284-02 Wiring Harness 1
30 099918-02

__

099918-02

__

099918-02

__

Pilot Regulator 1
31 108138-01 108138-01 108138-01 108138-01 108138-01 108138-01 Saddle Bracket 2
32 108139-01 108139-01 108139-02 108139-02 108139-03 108139-03 Grate Assy. 1

PARTS AVAILABLE — NOT SHOWN

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

103877-01 103877-01 103877-01 103877-01 103877-01 103877-01

Lighting Instructions Plate

1

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

Warning Plate Fastener

1
100639-01 100639-01 100639-01 100639-01 100639-01 100639-01 Caution Decal 1
101137-02 101137-02 101137-02 101137-02 101137-02 101137-02 Hardware Kit 1
GA6060 GA6060 GA6060 GA6060 GA6060 GA6060 Lava Rock 1

www.desatech.com

104415-01M42

ACCESSORIES

Purchase these heater accessories from your local
dealer. If they can not supply these accessories,
call DESA Heating Products 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.

FIREPLACE HOOD

Black - GA6050
Brass - GA6052
Antique Brass - GA6053

For all models. Helps deflect heat away from
mantel or wall above fireplace. Fits openings 28"
to 48" wide.

RECEIVER AND HAND-HELD
THERMOSTAT REMOTE CONTROL
KIT - GHRCTB

For all Remote-Ready Models. Allows the fire­place to be operated in a manually or thermostati

­cally controlled mode. You can turn the fireplace
on and off without ever leaving the comfort of
your easy chair.

RECEIVER AND REMOTE CONTROL
KIT - GHRCB

For all Remote-Ready Models. Allows the fire­place to be turned on and off by using a hand-held
remote control.

www.desatech.com

104415-01M 43

ACCESSORIES

Continued

WALL-MOUNT THERMOSTAT
SWITCH - GWMT1

(Not Shown)

For all Remote-Ready Models. The desired com­fort setting can be selected on the wall thermostat
and the log heater will automatically cycle from
pilot to the heat setting selected.

WALL-MOUNT ON/OFF SWITCH
GWMS2 (Not Shown)

For all Remote-Ready Models. Allows the gas
log heater to be turned on and off with a wall
switch.

VENT-FREE LOGMATE® FIREBOXES
(Not Shown)

Available in 32", 36" and 42" models. Circu­lating fireboxes feature louvers and an optional
blower. Non-circulating, smooth face models are
ideal for custom trim applications such as stone
or marble.

FB32C (CIRCULATING), FB32NC
(NON-CIRCULATING) SERIES
(Not Shown)

For 18" and 24" models.

FB36CA, FB42C SERIES
(CIRCULATING)
FB36NCA, FB42NC SERIES
(NON-CIRCULATING)
(Not Shown)

For all models.

DAMPER CLAMP - GA6080
(Not Shown)

For Remote-Ready and Variable Manually­Controlled Models. Permanently opens chimney

flue damper for vented operation.

LAVA ROCK - GA6060
(Not Shown)

For all models. Order when additional rock is
desired. (1.8 lb. bag)

CLEANING KIT - GCK
(Not Shown)

For all models. Your vent-free gas appliance re­quires regular cleaning and maintenance to prevent
performance problems. This kit gives you the tools
and instructions to make it easy to clean all critical
areas of your appliance.

INFORMATION VIDEO - 108917-01

For al l mo dels. A care and maint enanc e
vid e o is avail able by ca l ling 1-866- 6 72-

6040. You may als o email your request to

[email protected].

FIRE CRACKLE - CF6-A

(Not Shown)

For all models. Creates the sound of a real burn

­ing fire.

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

NOT A UPC

WARRANTY INFORMATION

KEEP THIS WARRANTY

Model

Serial No.

Date Purchased

Always specify model and serial numbers when communicating with the factory.

We reserve the right to amend these specifications at any time without notice. The only warranty applicable is
our standard written warranty. We make no other warranty, expressed or implied.

LIMITED WARRANTY

VENT-FREE GAS LOG HEATERS

DESA Heating Products warrants this product to be free from defects in materials and components for four
(4) 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, INCLUD

­ING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO FOUR
(4) YEARS ON ALL COMPONENTS FROM THE DATE OF FIRST PURCHASE; AND DESA HEATING
PRODUCTSʼ LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND
DESA HEATING PRODUCTS SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER
INCLUDING INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES.

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

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

For information about this warranty write:

104415-01
Rev. M
02/05

104415 01