for correct installation
and operational procedures. For assistance or
additional information
consult a qualified installer, service agency or
the gas supplier.
WARNING: This ap-
pliance is for installation
only in a solid-fuel burning
masonry or UL127 factorybuilt replace or in a listed
ventless firebox enclosure. It is design-certied
for these installations in
accordance with ANSI
Z21.11.2. Exception: Do
not install this appliance
in a factory-built replace
that includes instructions
stating it has not been tested or should not be used
with unvented gas logs.
WARNING: This is an
unvented gas-red 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,*
per ma ne nt ly loc at ed ,
manufactured (mobile)
home, where not prohib-
ited 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
www.desatech.com
113097-01L2
Page 3
SAFETy
Continued
WARNING: This product
contains and/or ge n e r ates
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
be fore tryi ng to assem ble,
operate or service this heater.
Improper use of this heater can
cause serious injury or death
from burns, fire, explosion,
electrical shock and carbon
monoxide poisoning.
DANGER: Carbon monoxide
poisoning may lead to death!
Carbon Monoxide Poisoning: Early signs
of carbon monoxide poisoning resemble the
u, with headaches, dizziness or nausea. If
you have these signs, the heater may not be
working properly. Get fresh air at once! Have
heater serviced. Some people are more affected by carbon monoxide than others. These
include pregnant women, people with heart or
lung disease or anemia, those under the inu-
ence of alcohol and those at high altitudes.
Natural and Propane/LP Gas: Natural and
propane/LP gases are odorless. An odormaking agent is added to the gas. The odor
helps you detect a gas leak. However, the
odor added to the gas can fade. Gas may be
present even though no odor exists.
Make certain you read and understand all
warnings. Keep this manual for reference. It
is your guide to safe and proper operation of
this heater.
WARNING: Any change to
this heater or its controls can
be dangerous.
WARNING: Do not allow fans
to blow directly into the replace.
Avoid any drafts that alter burner
ame patterns. Ceiling fans can
create drafts that alter burner
ame patterns. Altered burner
patterns can cause sooting.
WARNING: Do not use a
blower insert, heat exchanger
insert or other accessory not approved for use with this heater.
Due to high temperatures, the
appliance should be located out
of trafc and away from furniture
and draperies.
Do not place clothing or other
ammable material on or near
the appliance. Never place any
objects on the heater.
Heater base assembly becomes
very hot when running heater.
Keep children and adults away
from hot surface to avoid burns
or clothing ignition. Heater
will remain hot for a time after
shutdown. Allow surface to cool
before touching.
Carefully supervise young chil-
dren when they are in the room
with heater.
You must operate this heater
with a replace screen in place.
Make sure replace screen is
closed before running heater.
Keep the appliance area clear
and free from combustible materials, gasoline and other ammable vapors and liquids.
113097-01L3
www.desatech.com
Page 4
SAFETy
Continued
1. This appliance is only for use with the type
of gas indicated on the rating plate. This
appliance is not convertible for use with
other gases.
2. Do not place propane/LP supply tank(s)
inside any structure. Locate propane/LP
supply tank(s) outdoors (propane/LP units
only).
3. To prevent performance problems, do
not use propane/LP fuel tank of less than
100 lb. capacity (propane/LP units only).
4. If you smell gas
• shut off gas supply
• do not try to light any appliance
• do not touch any electrical switch; do not
use any phone in your building
• immediately call your gas supplier from
a neighbor’s phone. Follow the gas sup-
plier’s instructions
• if you cannot reach your gas supplier,
call the re department
5. This heater shall not be installed in a
bedroom or bathroom unless installed as
a vented appliance (Variable ManuallyControlled Models Only) (see Installing
Damper Clamp Accessory for Vented
Operation, page 12). This gas log set may
not be installed as a vented appliance in
a bedroom or bathroom in the Common-
wealth of Massachusetts.
6. Before installing in a solid fuel burning replace, the chimney ue and rebox must
be cleaned of soot, creosote, ashes and
loose paint by a qualied chimney cleaner.
Creosote will ignite if highly heated. A dirty
chimney ue may create and distribute
soot within the house. Inspect chimney
ue for damage. If damaged, repair ue
and rebox before operating heater.
7. Do not burn solid-fuel in a masonry or
UL127 factory-built replace in which a
vent-free room heater is installed.
8. If replace has glass doors, never operate
this heater with glass doors closed. If you
operate heater with doors closed, heat
buildup inside replace will cause glass to
burst. Make sure there are no obstructions
across openings of replace.
9. This log heater is designed to be smoke-
less. If logs ever appear to smoke, turn off
heater and call a qualied service person.
Note: During initial operation, slight smoking could occur due to log curing and
heater burning manufacturing residues.
10. To prevent the creation of soot, follow the
instructions in Cleaning and Maintenance,
page 23.
11. Before using furniture polish, wax, carpet
cleaner or similar products, turn heater off. If
heated, the vapors from these products may
create a white powder residue within burner
box or on adjacent walls or furniture.
12. This heater needs fresh, outside air ven-
tilation to run properly. This heater has an
Oxygen Depletion Sensing (ODS) safety
shutoff system. The ODS shuts down the
heater if not enough fresh air is available.
See Air for Combustion and Ventilation,
page 6. If heater keeps shutting off, see
Troubleshooting, page 25.
13. Do not run heater
• where ammable liquids or vapors are
used or stored
• under dusty conditions
14. Do not use this heater to cook food or burn
paper or other objects.
15. Do not use heater if any part has been ex-
posed to or under water. Immediately call
a qualied service technician to inspect
the room heater and to replace any part
of the control system and any gas control
which has been under water.
16. Do not operate heater if any log is broken.
Do not operate heater if a log is chipped
(dime-sized or larger).
17. Turn heater off and let cool before servic-
ing. Only a qualied service person should
service and repair heater.
18. Operating heater above elevations of
4,500 feet could cause pilot outage.
19. Provide adequate clearances around air
openings.
www.desatech.com
113097-01L4
Page 5
PRODUCT IDENTIFICATION
Log Set
Piezo
Ignitor
Control Knob
Base Grate
Figure 1 - Vent-Free Gas Log Heater
(Logs May Vary by Model, Seasonal Oak Single Burner Model Shown)
LOCAL CODES
Install and use heater with care. Follow all
local codes. In the absence of local codes,
use the latest edition of The National Fuel
Gas Code, ANSI Z223.1/NFPA 54*.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
Note: Where listed vented decorative logs are required, thermostat operation is not permitted.
UNPACkING
CAUTION: Do not remove the
data plates from the grate as-
sembly. The data plates contain
important product information.
1. Remove logs and heater base assembly
from carton. Note: Do not pick up heater
base assembly by burners. This could
Burner
State of Massachusetts: The installation must be made by a licensed plumber
or gas fitter in the Commonwealth of
Massachusetts.
Sellers of unvented propane or natural
gas-red 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.
damage heater. Always handle base assembly by grate.
2. Remove all protective packaging applied
to logs and heater for shipment.
3. Check heater for any shipping damage.
If heater is damaged call DESA Heating,
LLC at 1-866-672-6040 for replacement
parts before returning to dealer.
PRODUCT FEATURES
OPERATION
This heater is clean burning. It requires no outside
venting. There is no heat loss out a vent or up a
chimney. Heat is generated by realistic dancing,
yellow ames. This heater is designed for ventfree operation with ue 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
ue damper (non-thermostat operation only).
113097-01L5
www.desatech.com
SAFETY PILOT
This heater has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. The
ODS/pilot is a required feature for vent-free
room heaters. The ODS/pilot shuts off the
heater if there is not enough fresh air.
PIEZO IGNITION SYSTEM
This heater has a piezo ignitor. This system requires no matches, batteries or other sources
to light heater.
Page 6
AIR FOR COMbUSTION AND VENTILATION
WARNING: This heater shall
not be installed in a room or space
unless the required volume of
indoor combustion air is provided
by the method described in the
National Fuel Gas Code, ANSI
Z223.1/NFPA 54, the International
Fuel Gas Code, or applicable
local codes. Read the following
instructions to insure proper fresh
air for this and other fuel-burning
appliances in your home.
Today’s homes are built more energy efcient
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
efcient, your home needs to breathe. Fresh
air must enter your home. All fuel-burning appliances need fresh air for proper combustion
and ventilation.
Exhaust fans, replaces, 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, Air for
Combustion and Ventilation.
All spaces in homes fall into one of the three
following ventilation classications:
1. Unusually Tight Construction
2. Unconned Space
3. Conned 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.
www.desatech.com
Unusually tight construction is dened
as construction where:
a. walls and ceilings exposed to the out-
side atmosphere have a continuous
water vapor retarder with a rating of one
perm (6x10
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 oors, 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 Determining FreshAir Flow for Heater Location.
Conned and Unconned Space
National Fuel Gas Code, ANSI Z223.1/NFPA
54 denes a conned space as a space whose
volume is less than 50 cubic feet per 1,000 Btu/
hr (4.8 m3 per kw) of the aggregate input rating
of all appliances installed in that space and an
unconned space as a space whose volume
is not less than 50 cubic feet per 1,000 Btu/hr
(4.8 m3 per kw) of the aggregate input rating of
all appliances installed in that space. Rooms
communicating directly with the space in which
the appliances are installed*, through openings
not furnished with doors, are considered a part
of the unconned space.
* Adjoining rooms are communicating only if
there are doorless passageways or ventilation
grills between them.
-11
kg per pa-sec-m2) or less
DETERMINING FRESH-AIR FLOW
FOR HEATER LOCATION
Determining if You Have a Conned or
Unconned Space
Use this work sheet to determine if you have
a conned or unconned space.
Space: Includes the room in which you will install
replace 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)
113097-01L6
Page 7
Or
Remove
Door into
Adjoining
Room,
Option
3
Ve ntilation Grills
Into Adjoining Room,
Option 2
Ve ntilation
Grills Into
Adjoining
Room,
Option 1
12"
12"
AIR FOR COMbUSTION AND VENTILATION
Continued
Example: Space size 20 ft. (length) x 16 ft.
(width) x 8 ft. (ceiling height) = 2,560 cu. ft.
(volume of space)
If additional ventilation to adjoining room
is supplied with grills or openings, add the
volume of these rooms to the total volume
of the space.
2. Multiply the space volume by 20 to determine
the maximum Btu/Hr the space can support.
________ (volume of space) x 20 = (Maxi-
mum Btu/Hr the space can support)
Example: 2,560 cu. ft. (volume of space) x
20 = 51,200 (maximum Btu/Hr the space can
support)
3. Add the Btu/Hr of all fuel burning appliances
in the space.
Vent-free replace __________ Btu/HrGas water heater* __________ Btu/Hr
Gas furnace __________ Btu/Hr
Vented gas heater __________ Btu/Hr
Gas replace logs __________ Btu/Hr
Other gas appliances* + _________ Btu/Hr
Total = _________ Btu/Hr
* Do not include direct-vent gas appliances.
Direct-vent draws combustion air from the
outdoors and vents to the outdoors.
Example:
Gas water heater __________ Btu/HrVent-free replace + _________ Btu/Hr
maximum Btu/Hr the space can support. You
must provide additional fresh air. Your options
are as follows:
A. Rework worksheet, adding the space of an
adjoining room. If the extra space provides an
unconned space, remove door to adjoining
room or add ventilation grills between rooms.
See Ventilation Air From Inside Building.
B. Vent room directly to the outdoors. See
Ventilation Air From Outdoors, page 8.
C. Install a lower Btu/Hr replace, if lower Btu/
Hr size makes room unconned.
113097-01L7
www.desatech.com
If the actual Btu/Hr used is less than the maxi-
mum Btu/Hr the space can support, the space is
an unconned space. You will need no additional
fresh air ventilation.
WARNING: If the area in which
the heater may be operated does
not meet the required volume for
indoor combustion air, combustion and ventilation air shall be
provided by one of the methods
described in the National Fuel
Gas Code, ANSI Z223.1/NFPA 54,
the International Fuel Gas Code,
or applicable local codes.
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining
unconned space. When ventilating to an
adjoining unconned space, you must provide
two permanent openings: one within 12" of the
ceiling and one within 12" of the oor 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, Air for Combustion and
Ventilation for required size of ventilation
grills or ducts.
Figure 2 - Ventilation Air from Inside
Building
Page 8
Outlet
Air
V e ntilated
Attic
Outlet
A
ir
Inlet
Air
Inlet Air
V e ntilated
Crawl Space
T o
Crawl
Space
T o Attic
AIR FOR COMbUSTION AND VENTILATION
Continued
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 oor. 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, SAir 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 thermo-
INSTALLATION
stat-controlled power vent. Heated air entering
the attic will activate the power vent.
Figure 3 - Ventilation Air from Outdoors
NOTICE: This heater is intended
for use as supplemental heat.
Use this heater along with your
primary heating system. Do not
install this heater as your pri-
mary heat source. If you have a
central heating system, you may
run system’s circulating blower
while using log heater. This will
help circulate the heat from your
log heater throughout the house.
In the event of a power outage,
you can use this heater as your
primary heat source.
WARNING: A qualied service person must install heater.
Follow all local codes.
NOTICE: State or local codes
may only allow operation of this
appliance in a vented conguration. Check your state or local
codes.
WARNING: Before installing
in a solid fuel burning replace,
the chimney ue and rebox
must be cleaned of soot, creo-
sote, ashes and loose paint by
a qualified chimney cleaner.
Creosote will ignite if highly
heated. A dirty chimney ue may
create and distribute soot within
house. Inspect chimney ue and
rebox for damage. If damaged,
repair ue and rebox before
operating heater.
WARNING: Seal any fresh
air vents or ash clean-out doors
located on oor or wall of replace. If not, drafting may cause
pilot outage or sooting. Use a
heat-resistant sealant. Do not
seal chimney ue damper.
www.desatech.com
113097-01L8
Page 9
INSTALLATION
Continued
WARNING: Never install the
heater
• in a bedroom or bathroom
unless installed as a vented
appliance (Variable Manually-
Controlled Models Only) (see
page 12)
• in a recreational vehicle
• where curtains, furniture,
clothing or other ammable
objects are less than 42" from
front, top or sides of heater
• in high trafc 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 uids, 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 benecial, 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 cor-
rect, do not install heater. Call dealer where
you bought heater for proper type heater.
INSTALLATION AND CLEARANCES
(Vent-Free Operation Only)
WARNING: Maintain the
minimum clearances. If you can,
provide greater clearances from
oor, ceiling and adjoining wall.
MINIMUM FIREPLACE CLEARANCE
TO COMBUSTIBLE MATERIALS
Side Wall 16", Ceiling 42"
LOG SIZING REQUIREMENTS
Minimum Firebox
Log
SizeHeight Depth
18"17"14"24"20"
24"17"14"28"21"
* Measured at 14" depth.
Carefully follow the instructions below. This
will ensure safe installation into a masonry,
UL127-listed manufactured replace or certied vent-free rebox.
Minimum Clearances For Side Combustible Material, Side Wall and Ceiling
A. Clearances from side of replace 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 com-
bustible material must be 4" from side of
replace opening (see Figure 4).
Note: When installing your gas logs into
a manufactured rebox, follow rebox
manufacturer’s instructions for minimum
clearances to combustible materials.
B. Clearances from top of replace opening
to ceiling should not be less than 42".
Example
Front
Width
Rear
Width*
WARNING: This appliance is
equipped for either natural gas
or propane/LP gas but not both.
Gas type is indicated on the rating plate. Field conversion is not
permitted.
113097-01L9
www.desatech.com
*Minimum 16" from Side Wall
Figure 4 - Minimum Clearance for
Combustible to Wall
*
Page 10
Heat Resistant
Material
(A)
Minimum Noncombustible Material
Clearances
If Not Using Mantel
Note: If using a mantel, proceed to If Using
Mantel. If not using a mantel, follow the information below.
You must have noncombustible material(s)
above the replace opening. Noncombustible
materials (such as slate, marble, tile, etc.) must
be at least 1/2" thick. With sheet metal, you
must have noncombustible material behind
it. Noncombustible material must extend at
least 8" up. If noncombustible material is less
than 12", you must install the replace hood
accessory (24" models only). See Figure 5 for
minimum clearances.
IMPORTANT: If you cannot meet these mini-
mum clearances, you must operate heater
with chimney ue damper open. Go to Install-
ing Damper Clamp Accessory for Vented
Operation, page 11.
If Using Mantel
You must have noncombustible material(s)
above the replace opening. Noncombustible
materials (such as slate, marble, tile, etc.) must
be at least 1/2" thick. With sheet metal, you
must have noncombustible material behind it.
Noncombustible material must extend at least
8" up. If noncombustible material is less than
12", you must install the replace hood accessory (24" models only). Even if noncombustible
material is more than 12", you may need the
hood accessory to deect heat away from your
mantel shelf. See Figure 5 and Figure 6 and 7
on page 11 for minimum clearances.
IMPORTANT: If you cannot meet these mini-
mum clearances, you must operate heater
with chimney ue damper open. Go to Install-
ing Damper Clamp Accessory for Vented
Operation, page 12.
INSTALLATION
Continued
NOTICE: Manual control heaters
may be used as a vented product.
If so, you must always run heater
with chimney ue damper open.
If running heater with damper
open, noncombustible material
above replace opening is not
needed. Go to Installing Damper
Clamp Accessory for Vented
Operation, page 12.
material, you must operate
heater with ue damper open.
MANTEL CLEARANCES
In addition to meeting noncombustible mate-
rial clearances, you must also meet required
clearances between replace opening and
mantel shelf. If you do not meet the clearances
in Figure 6, page 11 you will need a hood.
Determining Minimum Mantel Clearance
If you meet minimum clearance between mantel shelf and top of replace 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 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.
113097-01L10
Page 11
Minimum
Noncombustible
Material
Minimum
Noncombustible
Material Height
Distances to
Underside of
Mantel
To p of Fireplace
Opening
Underside
of Mantel
Shelf
Mantel Shelf
12"
8"
(A)
18"8"20"
14"
22"
17"
24"
20"
All minimum
distances
are in inches
Log Set
24"/30"
Models
18" Model
2
1
/2
"
6"
8"
10"
INSTALLATION
Minimum
Noncombustible
Material
8"
Min.
12" 15" 18"
All minimum
distances are
in inches
Log Set
18", 24",30" Models
20"
2
1
/2
"
6"
8"
10"
12"
Distances to
Underside of
Mantel
Hood
(GA6050,GA6052)
T o p of
Fireplace
Opening
Underside
of Mantel
Shelf
Mantel Shelf
14"
Min.
Combustible
Material
Noncombustible
Material
Hearth
5"
Min.
Combustible
Material
Continued
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.
Figure 6 - Minimum Mantel Clearances
Without Using Hood
NOTICE: If your installation does
not meet the minimum clearances shown, you must do one
of the following:
• operate logs only with ue
damper open
• raise mantel to an acceptable
height
• remove mantel
FLOOR CLEARANCES
A. If installing appliance on the oor level,
you must maintain the minimum distance
of 14" to combustibles (see Figure 8).
B. If combustible materials are less than 14"
to the replace, you must install appliance
at least 5" above the combustible ooring
(see Figure 9).
Figure 8 - Minimum Fireplace Clearances
if Installed at Floor Level
Figure 7 - Minimum Mantel Clearances
113097-01L11
(GA6050,
GA6052 and
GA6053)
When Using Hood
All
Figure 9 - Minimum Fireplace Clearances
Models
Above Combustible Flooring
www.desatech.com
Page 12
INSTALLATION
Continued
INSTALLING DAMPER CLAMP
ACCESSORY FOR VENTED
OPERATION
Note: When used as a vented heater, appliance must be installed only in a solid-fuel
burning replace with a working ue and constructed of noncombustible material.
For Massachusetts Residents Only: Installation of this gas log set as a vented appliance
in the Commonwealth of Massachusetts requires the damper be permanently removed
or welded in the fully open position.
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 replace does not meet the clearance
to combustibles requirements for ventfree operation.
2. State or local codes do not permit ventfree operation.
3. You prefer vented operation.
If reasons number 1 or 2 above apply to you,
you must permanently open chimney ue
damper. You must install the damper clamp
accessory (to order, see Accessories, page
31). This will insure vented operation (see Fig-
ure 10). The damper clamp will keep damper
open. Installation instructions are included
with clamp accessory.
See chart for minimum permanent ue open-
ing you must provide. Attach damper clamp
so the minimum permanent ue opening will
be maintained at all times.
Damper
Clamp
Damper
Damper
Damper
Clamp
Damper
Chimney
Height
6' to 15'39 sq. inches
15' to 30'29 sq. inches
Area of Various Standard Round Flues
DiameterArea
5"20 sq. inches
6"29 sq. inches
7"39 sq. inches
8"51 sq. inches
Minimum Permanent
Flue Opening
INSTALLING HEATER BASE
ASSEMBLY
CAUTION: Do not remove the
data plates attached to the heater
base assembly. The data plates
contain important warranty and
safety information.
WARNING: You must secure
this heater to replace oor. If
not, heater will move when you
adjust controls. Moving heater
may cause a gas leak.
WARNING: If installing in a
sunken replace, special care
is needed. You must raise the
replace oor to allow access
to heater control panel. This
will insure adequate air ow
and guard against sooting and
controls being damaged. Raise
replace oor with noncombus-
tible material. Make sure material
is secure.
Masonry
Fireplace
Figure 10 - Attaching Damper Clamp
Manufactured
Fireplace
www.desatech.com
CAUTION: Do not pick up
heater base assembly by the
burner. This could damage
heater. Only handle base assembly by grates.
113097-01L12
Page 13
INSTALLATION
Continued
IMPORTANT: Make sure the heater burners
are level. If heater is not level, heater will not
work properly. For thermostat models, avoid
damage to thermostat bulb. Avoid nicks or
sharp bends in thermostat bulb wire. Keep
thermostat bulb in mounting bracket until
ready to mount base to oor. See Optional
Positioning Of Thermostat Sensing Bulb,
page 29.
Installation Items Needed
• hardware package (provided with heater)
• approved exible gas hose (not provided)
(if allowed by local codes)
• sealant resistant to propane (propane/LP)
gas, not provided
• electric drill with 3/16" drill bit
• athead screwdriver
1. Apply pipe joint sealant lightly to male
threads of the tting to be threaded into
gas regulator. Connect approved exible
gas hose to gas regulator of heater (see
Figure 11).
IMPORTANT: Hold gas regulator with
wrench when connecting exible gas hose.
2. Locate masonry screws in hardware
package.
3.
Position heater base assembly in replace.
4. Place logs in their proper position on heater
base, see Installing Logs on page 16.
5. Center heater base and logs front-to-back
and side-to-side in replace.
6. Carefully remove logs without moving
heater base.
7. Mark screw locations through holes in
mounting brackets (see Figure 12 and
13). If installing in a brick-bottom replace,
mark screw locations in mortar joint of
bricks.
8. Remove heater base from replace.
Flexible Gas Hose
(if allowed by local codes)
Heater Gas
Regulator
Fitting
9. Drill holes at marked locations using 3/16"
drill bit.
10. Attach base assembly to replace oor
using two masonry screws (in hardware
package) (see Figure 12 or 13).
Masonry
Screw
Mounting
Bracket
Figure 12 - Attaching Base Assembly to
Fireplace Floor - Dual Burner Model
Masonry
Screw
Mounting
Bracket
Figure 13 - Attaching Base Assembly to
Fireplace Floor - Single Burner Model
CONNECTING TO GAS SUPPLY
WARNING: This appliance
requires a 1/2" NPT (National
Pipe Thread) inlet connection to
the pressure regulator.
WARNING: A qualied ser-
vice person must connect heater
to gas supply. Follow all local
codes.
Figure 11 - Attaching Flexible Gas Hose
to Heater Gas Regulator
113097-01L13
www.desatech.com
Page 14
INSTALLATION
Continued
CAUTION: Never connect
heater directly to the propane/LP
supply. This heater requires an
external regulator (not supplied).
Install the external regulator be-
tween the heater and propane/
LP supply.
WARNING: Never connect
natural gas replace to private
(non-utility) gas wells. This
gas is commonly known as
wellhead gas.
Installation Items Needed
Before installing heater, make sure you have
the items listed below.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
* A CSA design-certied equipment shutoff
valve with 1/8" NPT tap is an acceptable al-
ternative to test gauge connection. Purchase
the optional CSA design-certied equipment
shutoff valve from your dealer. See Accessories, page 31.
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" of water. If you do not reduce incoming gas pressure, heater regulator
damage could occur. Install external regulator
with the vent pointing down as shown in Figure
14. 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 vol-
ume to heater. If pipe is too small,
undue loss of volume will occur.
Installation must include an equipment shutoff
valve, union and plugged 1/8" NPT tap. Locate
NPT tap within reach for test gauge hook up.
NPT tap must be upstream from heater (see
Figure 15, page 15).
IMPORTANT: Install equipment 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
requirements for locating equipment shutoff
valve to replaces.
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 Figure 15, page 15.
Locate sediment trap where it is within reach
for cleaning. Install in piping system between
fuel supply and heater. Locate sediment trap
where trapped matter is not likely to freeze.
A sediment trap traps moisture and contaminants. This keeps them from going into heater
controls. If sediment trap is not installed or is
installed wrong, heater may not run properly.
Propane/LP
Supply Tank
External
Regulator
with Vent
Pointing
Down
Figure 14 - External Regulator With Vent
www.desatech.com
Pointing Down
113097-01L14
Page 15
INSTALLATION
Continued
PRESSURE TESTING GAS SUPPLY
CAUTION: Avoid damage to
regulator. Hold gas regulator
with wrench when connecting it
to gas piping and/or ttings.
PROPANE/LP
From External Regulator
(11" W.C.** to 14" W.C.
Pressure)
NATURAL
From Gas Meter
(5" W.C.** to
10.5" W.C.
Pressure)
Tee Pipe Cap
Joint Nipple
Sediment Trap
Figure 15 - Gas Connection
* Purchase the optional CSA design-certied
equipment shutoff valve from your dealer.
** Minimum inlet pressure for purpose of input
adjustment.
CSA Design-
Certied Equipment
Shutoff Valve With
1/8" NPT Tap*
Gas
Regulator
3" Minimum
Approved Flexible
Gas Hose (if allowed
by local codes)
CHECKING GAS CONNECTIONS
WARNING: Test all gas pip-
ing and connections, internal
and external to unit, for leaks
after installing or servicing. Correct all leaks at once.
WARNING: Never use an open
ame to check for a leak. Apply a
noncorrosive leak detection uid
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 13.
113097-01L15
www.desatech.com
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 equip-
ment shutoff valve was connected.
3. Pressurize supply piping by either opening
propane/LP supply tank valve for propane/
LP gas or opening main gas valve located
on or near gas meter for natural gas or
using compressed air.
4. Check all joints of gas supply piping system.
Apply a noncorrosive leak detection uid 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
ttings for leaks.
Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 16).
2. Pressurize supply piping system by either
opening propane/LP supply tank valve
for propane/LP gas or opening main gas
valve located on or near gas meter for
natural gas or using compressed air.
3. Check all joints from gas meter to equipment shutoff valve for natural gas or
propane/LP supply to equipment shutoff
valve for propane/LP (see Figures 17 and
18, page 16). Apply noncorrosive leak
detection uid 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 16).
Equipment
Shutoff
Valve
Figure 16 - Equipment Shutoff Valve
Open
Closed
Page 16
INSTALLATION
Continued
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 (Thermostat-Controlled Models) or to control
valve (Manually-Controlled Models) (see
Figures 17 and 18). Apply noncorrosive
leak detection uid to all joints. Bubbles
forming show a leak.
5. Correct all leaks at once.
6. Light heater (see Operation, page 19
[manually-controlled models] or page
21 [thermostatically-controlled models]).
Check all other internal joints for leaks.
7. Turn off heater (see To Turn Off Gas to
Appliance, page 20 [manually-controlled
models] or page 22 [thermostaticallycontrolled models]).
Propane/LP
Supply Tank
Figure 17 - Checking Gas Joints
(Propane/LP Gas Models)
Equipment
Shutoff Valve
Thermostat Gas Valve or
Control Valve Location
Equipment
Shutoff Valve
INSTALLING LOGS
CAUTION: After installa-
tion and periodically thereafter,
check to ensure that no ame
comes in contact with any log.
With the heater set to HI, check
to see if ames contact any log. If
so, reposition logs according to
the log installation instructions
in this manual. Flames contacting logs will create soot.
WARNING: Failure to position
the parts in accordance with these
diagrams or failure to use only
parts specically approved with
this heater may result in property
damage or personal injury.
Dual Burner Biltmore Split Oak Models
CCL3018PTA/NTA, CCL3924PTA/NTA
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) on grate ngers. Make
sure front log rests rmly between grate
ngers and grate base (see Figure 19).
2. Place base of middle log (#2) in U-shaped
slots of grate base. Cutout on right of
middle log should t over burner (see Figure 20, page 17). Make sure front of middle
log is resting on tabs of grate base.
Front
Log (#1)
Gas Meter
Thermostat Gas Valve or
Control Valve Location
Figure 18 - Checking Gas Joints (Natural
Gas Models)
www.desatech.com
Grate
Fingers
Grate
Base
Figure 19 - Installing Front Log #1
(CCL3924PTA/NTA Shown)
113097-01L16
Page 17
INSTALLATION
Continued
3. Locate pins on bottom of back log (#3).
Slide these pins into holes in grate base
behind burner (see Figure 21).
4. Locate holes on bottom of crossover log (#4).
Slide front hole onto left pin (CCL3924PTA/
NTA) or middle pin (CCL3018PTA/NTA) on
middle log (#2) and pin on back log (#3).
See Figure 22, for placement.
5. For CCL3924PTA/NTA Only: Locate pin
and hole on bottom of crossover log (#5).
Slide pin into hole located in crossover log
(#4). Slide hole onto pin on front log (#1).
See Figure 23.
For CCL3018PTA/NTA Only: Locate
holes on bottom of crossover log (#5).
Slide holes over left pins on middle log
(#2) and front log (#1). See Figure 24.
6.
Locate holes on bottom of crossover log
(#6). Slide these holes onto right pins located in middle log (#2) and front log (#1). See
Figure 25, page 18 for CCL3924PTA/NTA.
See Figure 24 for CCL3018PTA/NTA.
7. Add lava rock around base of heater if
desired. Do not place any lava rock on
logs or burner.
Crossover
Middle
Log (#2)
Pins
Log (#4)
Back Log
(#3)
Middle
Log (#2)
Burner
Tab
Figure 20 - Installing Middle Log #2
(CCL3924PTA/NTA Shown)
U-Shaped Slot
Pins
Rear
Log (#3)
Hole in
Grate Base
Burner
Figure 22 - Installing Crossover Log #4
(CCL3924PTA/NTA Shown)
Crossover
Log (#5)
Crossover
Log (#4)
Front Log (#1)
Figure 23 - Installing Crossover Log #5
(CCL3924PTA/NTA Shown)
Crossover
Log (#5)
Middle
Log (#2)
Front
Log (#1)
Crossover
Log (#4)
Crossover
Log (#6)
Figure 21 - Installing Rear Log #3
(CCL3924PTA/NTA Shown)
113097-01L17
www.desatech.com
Figure 24 - Installing Crossover Log #5
and Log #6 (CCL3018PTA/NTA Only)
Page 18
INSTALLATION
6
Continued
Crossover
Log (#6)
Pins
Middle
Log (#1)
Figure 25 - Installing Crossover Log #6
(CCL3924PTA/NTA Shown)
Single Burner Seasonal Oak Models
CRL2718PA/NA, CRL3124PA/NA
WARNING: Failure to posi-
tion the parts in accordance
with these diagrams or failure
to use only parts specically
approved with this heater may
result in property damage or
personal injury.
The Seasonal Oak Log Set is a reversible log
set. This means that the 2 bottom logs may be
turned to face either direction. The top logs,
however, must remain in the same position.
Do not modify logs. Only use logs supplied
with heater.
1. Place back log onto back of base assembly.
Make sure log sits forward against 2 posts
in front of log (see Figure 26). This log may
be turned to face either direction.
2. Place front log onto grate on front of base
assembly. The log will t down between
grate ngers and posts on front of base
assembly (see Figure 27). This log may
be turned to face either direction.
3. Place left and right crossover logs on top of
back log and front log. Make sure pins on
front and back are inserted into holes on
crossover logs (see Figure 28). Crossover
logs must be placed as shown in Figure 28
or holes will not seat onto pins.
4. Add lava rock around base of heater if
desired. Do not put lava rock on logs or
burner.
Log (#2)Front
www.desatech.com
Base
Assembly
Left Crossover Log
Post
Post
Figure 26 - Installing Back Log
Front Log
Post
Grate
Fingers
Base
Assembly
Figure 27 - Installing Front Log
Figure 28 - Installing Left and Right
Crossover Logs
Post
Right
Crossover Log
Back Log
113097-01L18
Page 19
OPERATION
MANUALLy-CONTROLLED MODELS
FOR YOUR SAFETY
READ BEFORE LIGHTING
LIGHTING
INSTRUCTIONS
WARNING: If you do not fol-
low these instructions exactly,
a re or explosion may result
causing property damage, per-
sonal injury or loss of life.
A. This appliance has a pilot which must
be ligh ted 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 oor because some
gas is heavier than air and will settle
on the oor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do
not use any phone in your building.
• Immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions.
• If you cannot reach your gas supplier,
call the re department.
C. Use only your hand to push in or turn
the gas control knob. Never use tools.
If the knob will not push in or turn by
hand, don’t try to repair it, call a qualied service technician or gas supplier.
Force or attempted repair may result in
a re or explosion.
D. Do not use this appliance if any part
has been under water. Immediately call
a qualied service technician to inspect
the appliance and to replace any part of
the control system and any gas control
which has been under water.
113097-01L19
www.desatech.com
WARNING
• If replace has glass doors,
never operate this heater with
glass doors closed. If you operate heater with doors closed,
heat buildup inside replace
will cause glass to burst. Make
sure there are no obstructions
across openings of replace.
• You must operate this heater
with a fireplace screen in
place. Make sure fireplace
screen is closed before run-
ning heater.
NOTICE: During initial operation
of new heater, burning logs will
give off a paper-burning smell.
Orange ame will also be pres-
ent. Open damper or window to
vent smell. This will only last a
few hours.
Note: Home owners generally prefer to 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 ames of the HI heat setting but will
nd the heat output excessive. You can open
the chimney damper (if you have one) fully or
partially to release some of the heat.
WARNING: Damper handle
will be hot if heater has been
running.
1. STOP! Read the safety information in
column 1.
2. Make sure equipment shutoff valve is fully
open.
3. Press in and turn control knob clockwise
to the OFF position.
4. Wait ve (5) minutes to clear out any gas.
Then smell for gas, including near the
oor. If you smell gas, STOP! Follow “B”
in the safety information, column 1. If you
don’t smell gas, go to the next step.
Page 20
OPERATION
Continued
MANUALLy-CONTROLLED MODELS
5. Slightly press and turn control knob coun-
terclockwise to the PILOT position.
Press in control knob for ve (5) seconds
(see Figure 29).
Note: You may be running this heater
for the rst time after hooking up to gas
supply. If so, the control knob may need
to be pressed in for 30 seconds or more.
This will allow air to bleed from the gas
system.
6. With control knob pressed in, press and
release ignitor button. This will light pilot.
The pilot is attached to the burner. If
needed, keep pressing ignitor button until
pilot lights.
Note: If pilot does not stay lit, contact a
qualied service person or gas supplier
for repairs. Until repairs are made, light
pilot with match. To light pilot with match,
see Manual Lighting Procedure.
7. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds,
release control knob.
Note: If pilot goes out, repeat steps 3
through 7. If control knob does not pop out
when released, contact a qualied service
person or gas supplier for repairs.
8. Slightly depress and turn control knob
counterclockwise to desired heating level. The burner(s) should light. Set
control knob to any heat level between HI
and LO.
9. To leave pilot lit and shut off burners only,
turn control knob clockwise to the
HI position then press in and turn clockwise to PILOT position.
WARNING: Do not operate
heater between PILOT and HI
positions.
Ignitor
Electrode
Thermocouple
Figure 30 - Pilot
Pilot Burner
VARIABLE CONTROL
OPERATION
The variable control valve can be set to any
heat setting and ame height desired, by simply turning the control knob until that setting
is attained. Even the lowest setting provides
realistic, dancing yellow ames. Selecting
higher settings produces greater heat output.
This results in increased heating comfort.
CAUTION: Do not try to ad-
just heating levels by using the
equipment shutoff valve.
TO TURN OFF GAS
TO APPLIANCE
1. Press in and turn control knob clockwise
2. Turn control knob clockwise to the
3. Press in control knob and turn clockwise
4. Close equipment shutoff valve (see Figure
1. Follow steps 1 through 5 under Lighting
2. Depress control knob and light pilot with
3. Keep control knob pressed in for 30 sec-
to the HI position.
pilot position.
to the OFF position.
16, page 15).
MANUAL LIGHTING
PROCEDURE
Instructions, pages 19 and 20.
match.
onds after lighting pilot. After 30 seconds,
release control knob. Now follow step 8,
under Lighting Instructions, column 1.
Ignitor Button
Figure 29 - Control Knob and Ignitor
Control Knob
Button Location
www.desatech.com
113097-01L20
Page 21
THERMOSTAT-CONTROLLED MODELS
FOR YOUR SAFETY
READ BEFORE LIGHTING
OPERATION
Continued
LIGHTING
INSTRUCTIONS
WARNING: If you do not fol-
low these instructions exactly,
a re or explosion may result
causing property damage, per-
sonal injury or loss of life.
A. This appliance has a pilot which must
be ligh ted 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 oor because some
gas is heavier than air and will settle
on the oor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do
not use any phone in your building.
• Immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions.
• If you cannot reach your gas supplier,
call the re department.
C. Use only your hand to push in or turn
the gas control knob. Never use tools.
If the knob will not push in or turn by
hand, don’t try to repair it, call a qualied service technician or gas supplier.
Force or attempted repair may result in
a re or explosion.
D. Do not use this appliance if any part
has been under water. Immediately
call a qualied service technician to
inspect the appliance and to replace
any part of the control system and
any gas control which has been under
water.
113097-01L21
www.desatech.com
WARNING
• If replace has glass doors,
never operate this heater with
glass doors closed. If you operate heater with doors closed,
heat buildup inside replace
will cause glass to burst. Make
sure there are no obstructions
across openings of replace.
• You must operate this heater
with a replace screen in place.
Make sure replace screen is
closed before running heater.
NOTICE: During initial operation
of new heater, burning logs will
give off a paper-burning smell.
Orange ame will also be pres-
ent. Open damper or window to
vent smell. This will only last a
few hours.
Note: Home owners generally prefer to 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 ames of the HI heat setting but will
nd 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 ve (5) minutes to clear out any gas.
Then smell for gas, including near the
oor. If you smell gas, STOP! Follow “B”
in the safety information, column 1. If you
don’t smell gas, go to the next step.
Page 22
LO
HI
OFF
Pilot
OPERATION
Continued
THERMOSTAT-CONTROLLED MODELS
5. Tur n control kno b count erc loc kwi se
to the PILOT position. Press in
control knob for ve (5) seconds (see
Figure 31).
Note: You may be running this heater
for the rst time after hooking up to gas
supply. If so, the control knob may need
to be pressed in for 30 seconds or more.
This will allow air to bleed from the gas
system.
• If control knob does not pop out when
released, contact a qualified service
person or gas supplier for repairs.
6. With control knob pressed in, press and
release ignitor button. This will light pilot.
The pilot is attached to the front burner. If
needed, keep pressing ignitor button until
pilot lights.
Note: If pilot does not stay lit, contact a
qualied service person or gas supplier
for repairs. Until repairs are made, light
pilot with match. To light pilot with match,
see Manual Lighting Procedure.
7. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds,
release control knob.
Note: If pilot goes out, repeat steps 3
through 7. This heater has a safety interlock system. Wait one (1) minute for system to reset before lighting pilot again.
8. Tur n control kno b count erc loc kwi se
to desired heating level. The burn-
ers should light. Set control knob to any
heat level between HI and LO.
9. Turn control knob clockwise to the
PILOT position to shut off burner leaving
pilot lit.
Ignitor
Electrode
Pilot Burner
Thermocouple
Figure 32 - Pilot
TO TURN OFF GAS
TO APPLIANCE
1. Turn control knob clockwise to the
OFF position.
2. Close equipment shutoff valve (see Figure
16, page 15).
THERMOSTAT
CONTROL OPERATION
The thermostat control knob can be set to any
comfort level between HI and LO. The thermostat will gradually modulate the heat output
and ame height from higher to lower settings
or pilot, in order to maintain the comfort level
you select. The ideal comfort setting will vary
by household depending upon the amount of
space to be heated, the output of the central
heating system, etc.
Note: Selecting the HI setting with the control
knob will cause the burners to remain fully on,
without modulating down in most cases.
MANUAL LIGHTING
PROCEDURE
1. Follow steps 1 through 5 under Lighting
Instructions, page 21.
2. Press control knob and light pilot with
match.
3. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds,
release control knob. Now follow step 8,
under Lighting Instructions, column 1.
Ignitor Button
Control Knob
Figure 31 - Control Knob and Ignitor
Button Location
www.desatech.com
113097-01L22
Page 23
INSPECTING bURNERS
Check pilot ame pattern and burner ame
patterns often.
PILOT FLAME PATTERN
Figure 33 shows a correct pilot ame pattern.
Figure 34 shows an incorrect pilot ame pattern. The incorrect pilot ame is not touching
the thermocouple. This will cause the thermocouple to cool. When the thermocouple cools,
the heater will shut down.
If pilot ame pattern is incorrect, as shown
in Figure 34
Pilot Burner
Thermocouple
Figure 33 - Correct Pilot Flame Pattern
Pilot Burner
Thermocouple
Figure 34 - Incorrect Pilot Flame Pattern
• turn heater off (see To Turn Off Gas to
Appliance, page 20 [manually-controlled
models] or page 22 [thermostat-controlled
models])
• see Troubleshooting, page 25
Note: The pilot ame on natural gas units will
have a slight curve, but ame should be blue
and have no yellow or orange color.
BURNER PRIMARY AIR HOLES
Air is drawn into the burner through the holes
in the tting at the entrance to the burner.
These holes may become blocked with dust,
lint or pet hair. Periodically inspect these holes
for any blockage and clean as necessary.
Blocked air holes will create soot.
MAIN BURNER
Periodically inspect all burner ame holes with
the heater running. All slotted burner ame
holes should be open with yellow ame present. All round burner ame holes should be
open with a small blue ame present. Some
burner ame holes may become blocked by
debris or rust, with no ame present. If so,
turn off heater and let cool. Remove blockage.
Blocked burner ame holes will create soot.
CLEANING AND MAINTENANCE
WARNING: Turn off heater
and let cool before cleaning.
CAUTION: You must keep
control areas, burner and circulating air passageways of heater
clean. Inspect these areas of
heater before each use. Have
heater inspected yearly by a
qualied service person. Heater
may need more frequent cleaning due to excessive lint from
carpeting, bedding material, pet
hair, etc.
WARNING: Failure to keep
the primary air opening(s) of
the burner(s) clean may result in
sooting and property damage.
113097-01L23
www.desatech.com
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 qualied
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. If using compressed air in a can, please
follow the directions on the can. If you don’t
follow directions on the can, you could dam-
age the pilot assembly.
Page 24
CLEANING AND MAINTENANCE
Continued
1. Shut off unit, including pilot. Allow unit to
cool for at least thirty minutes.
2. Inspect burner, pilot and primary air inlet
holes on injector holder for dust and dirt
(see Figure 35).
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 pilot assembly also. A yellow tip on the
pilot ame indicates dust and dirt in the pilot
assembly. There is a small pilot air inlet hole
about 2" from where the pilot ame comes out
of the pilot assembly (see Figure 36). With the
unit off, lightly blow air through the air inlet
hole. You may blow through a drinking straw
if compressed air is not available.
Burner Tube
Injector Holder
Primary Air
Inlet Holes
Figure 35 - Injector Holder On Outlet
Burner Tube
Ports/Slots
Burner Tube
Pilot Assembly
Pilot Air
Inlet Hole
Figure 36 - Pilot Inlet Air Hole
LOGS
• If you remove logs for cleaning, refer to
Installing Logs, page 16, to properly replace
logs.
• Replace log(s) if broken or chipped (dimesized or larger).
MAIN BURNER
Periodically inspect all burner ame holes with
the heater running. All slotted burner ame
holes should be open with yellow ame present. All round burner ame holes should be
open with a small blue ame present. Some
burner ame holes may become blocked by
debris or rust, with no ame present. If so,
turn off heater and let cool. Remove blockage.
Blocked burner ame holes will create soot.
SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
• burners will have delayed ignition
• heater will not produce specied heat
• for propane/LP units, propane/LP gas sup-
ply may be low
You may feel your gas pressure is too low. If
so, contact your local propane/LP or natural
gas supplier.
www.desatech.com
TECHNICAL SERVICE
You may have further questions about installation, operation, or troubleshooting. If so, contact DESA Heating, LLC at 1-866-672-6040.
When calling please have your model and
serial numbers of your heater ready.
You can also visit DESA Heating, LLC’s web
site at www.desatech.com.
113097-01L24
Page 25
TROUbLESHOOTING
WARNING: Turn off heater and let cool before servicing. Only a
qualied 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.
OBSERVED PROBLEM
Wh e n ig n i t o r button is
pressed, there is no spark
at ODS/pilot
Wh e n ig n i t o r button is
pressed, there is spark at
ODS/pilot but no ignition
POSSIBLE CAUSE
1. Ignitor electrode not connected to ignitor cable
2. Ignitor cable pinched or
wet
3. Piezo ignitor nut is loose
4. Broken ignitor cable
5. Bad piezo ignitor
6. Ignitor electrode broken
7. Ignitor electrode positioned
wrong
1. Gas supply turned off or
equipment shutoff valve
closed
2. Control knob not in PILOT
position
3. Control knob not pressed in
while in PILOT position
4. Air in gas lines when in-
stalled
5. Depleted gas supply (propane/LP only)
6. ODS/pilot is clogged
7. Gas regulator setting is not
correct
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. Co n tinu e hold ing do wn
control knob. Repeat igniting operation until air is
removed
5. Contact local propane/LP
gas company
6. Cl e a n O D S/ p i l ot ( se e
Cleaning and Maintenance,
page 23) or replace ODS/
pilot assembly
7. Replace gas regulator
113097-01L25
www.desatech.com
Page 26
OBSERVED PROBLEM
ODS/pilot lights but ame
goes out when control knob
is released
TROUbLESHOOTING
Continued
POSSIBLE CAUSE
1. Contr o l k n o b n o t f u l l y
pressed in
2. Control knob not pressed in
long enough
3. Equipment shutoff valve not
fully open
4. Pilot flame not touching
thermocouple, which allows thermocouple to cool,
causing pilot ame to go
out. This problem could be
caused by one or both of
the following:
A) Low gas pressure
B) Dirty or partially clogged
ODS/pilot
5. Thermocouple connection
loose at control valve
6. Thermocouple damaged
7. Control valve damaged
REMEDY
1. Press in control knob fully
2. After ODS/pilot lights, keep
control knob pressed in 30
seconds
3. Fully open equipment shutoff valve
4. A) Contact local propane/
LP or natural gas company
B) Clean ODS/pilot (see
Cleaning and Maintenance,
page 23) or replace ODS/
pilot assembly
5. Hand tighten until snug,
then tighten 1/4 turn more
6. Replace pilot assembly
7. Replace control valve
Burner does light after ODS/
pilot is lit
Delayed ignition of burner
Burn er bac kfiri ng dur ing
combustion
Slight smoke or odor during
initial operation
1. Burner orice clogged
2. Inlet gas pressure is too
low
1. Manifold pressure is too
low
2. Burner orice clogged
1. Burner orice is clogged or
damaged
2. Damaged burner
3. Gas regulator defective
1. Not enough air
2. Gas regulator defective
3. Residues from manufacturing processes and logs
curing
1. Clean burner (see Cleaning
and Maintenance, page 23)
or replace burner orice
2. Contact local propane/LP
or natural gas company
1. Contact local propane/LP
or natural gas company
2. Clean burner (see Cleaning
and Maintenance, page 23)
or replace burner orice
1. Clean burner (see Cleaning
and Maintenance, page 23)
or replace burner orice
2. Replace damaged burner
3. Replace gas regulator
1. Check burner for dirt and
de b r i s . If found, clean
burner (see Cleaning and
Maintenance, page 23)
2. Replace gas regulator
3. Problem will stop after a few
hours of operation
www.desatech.com
113097-01L26
Page 27
OBSERVED PROBLEM
Moisture/condensation no-
ticed on windows
TROUbLESHOOTING
Continued
POSSIBLE CAUSE
1. Not enough combustion/
ventilation air
REMEDY
1. Refer to Air for Combustion
and Ventilation require-
ments (page 6)
Heater produces a whistling
noise when burner is lit
White powder residue forming within burner box or on
adjacent walls or furniture
Heater produces a clicking/
ticking noise just after burner
is lit or shut off
1. Turning control knob to HI
or position 5 when burner is
cold
2. Air in gas line
3. Air passageways on heater
blocked
4. Dirty or partially clogged
burner orice
1. When heated, vapors from
furniture polish, wax, carpet
cleaners, etc. may turn into
white powder residue
1. Meta l expandi n g while
heating or contracting while
cooling
1. Turn control knob to LO or
position 1 and let warm up
for a minute
2. Operate burner until air is
removed from line. Have
gas line checked by local
propane/LP or natural gas
company
3.
Observe minimum installation
clearances (see page 9)
4. Clean burner (see Cleaning
and Maintenance, page 23)
or replace burner orice
1. Turn heater off when using furniture polish, wax,
carpet cleaners or similar
products
1. This is normal with most
heaters. If noise is excessive, contact qualied service person
113097-01L27
www.desatech.com
Page 28
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 re 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.
OBSERVED PROBLEM
Heater produces unwanted
odors
POSSIBLE CAUSE
1. Heater burning vapors from
paint, hair spray, glues ,
cleaners, chemicals, new
carpet, etc. (See IMPOR-
TANT statement above)
2. Gas leak. See Warning
statement above
REMEDY
1. Open window and ventilate room. Stop using odor
ca usin g prod u cts while
heater is running
2. Locate and correct all leaks
(see Checking Gas Con-
nections, page 15)
Heate r s hut s o ff in use
(ODS operates) temperature
drops to a lower than ideal
level before log set comes
back on
Gas odor even when control
knob is in OFF position
Gas odor during combustion
Logs set cycles to pilot, but
room
1. Not enough fresh air is available
2. Low line pressure
3. O D S / p i lo t i s p a rt i a l l y
clogged
1. Gas leak. See Warning
statement above
2. Control valve defective
1. Foreig n mat ter betwee n
control valve and burner
2. Gas leak. See Warning
statement above
1. Thermostat sensing bulb
needs to be repositioned
www.desatech.com
1. Open window and/or door
for ventilation
2. Contact local propane/LP
or natural gas company
3. Cl e a n O D S/ p i l ot ( se e
Cleaning and Maintenance,
page 23)
1. Locate and correct all leaks
(see Checking Gas Con-
nections, page 15)
2. Replace control valve
1. Take apart gas tubing and
remove foreign matter
2. Locate and correct all leaks
(see Checking Gas Con-
nections, page 15)
1. Rep o s i t i o n therm o s t a t
sensing bulb (see Optional
Positioning of Thermostat
Sensing Bulb, beginning on
page 29
113097-01L28
Page 29
OPTIONAL POSITIONING OF THERMOSTAT SENSING bULb
FOR MASONRY AND FACTORYBUILT METAL FIREPLACE
If your log set cycles to pilot, but the room
temperature drops to a lower than ideal
comfort level before the log set comes back
on, you may want to reposition the thermostat
sensing bulb.
The thermostat sensing bulb is located near the
gas valve assembly on the mounting bracket.
This location allows the thermostat to keep the
room temperature at an ideal comfort level for
most replace applications. For positioning
the thermostat sensing bulb elsewhere, an
adhesive-backed mounting clip is available.
Tools needed: 1/4" hex driver or socket
1. Remove logs. Locate the gas valve assembly and thermostat sensing bulb (see
Figure 37).
2. With 1/4" hex driver or socket, loosen the
thermostat screw. Carefully slide the ther-
mostat sensing bulb out of the retaining
clamp (see Figure 39).
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 replace.
Determine location of sensing bulb, but do
not mount sensing bulb until step 4. If you
have a masonry replace, see Figure 40
for location. If you have a factory-built
metal replace, see Figure 41 for location.
If your replace has glass doors, position
sensing bulb directly behind door gap on
right bottom side (see Figure 42).
4. The mounting clip must be a minimum
of 3" from bottom of replace to prevent
crimping of capillary. Once you have
decided on a location, clean the area
Figure 38 - Adhesive-backed Mounting Clip
Capillary
Retaining
Clamp
Figure 39 - Removing Thermostat
Thermostat
Sensing Bulb
Adhesive-backed
Mounting Clip
Figure 40 - Locating Thermostat Sensing
Bulb on Masonry Fireplace
Figure 41 - Locating Thermostat Sensing
Bulb on Factory-built Metal Fireplace
Thermostat
Sensing Bulb
Thermostat Screw
Thermostat
Sensing
Bulb
Sensing Bulb
Thermostat
Sensing Bulb
Adhesivebacked
Mounting Clip
Gas Valve
Assembly
Mounting
Bracket
Figure 37 - Location of Gas Valve
Assembly and Thermostat Sensing Bulb
113097-01L29
Thermostat
Sensing
Bulb
www.desatech.com
Adhesive-backed
Mounting Clip
Glass Doors
Figure 42 - Installing Thermostat Sensing
Bulb Behind Glass Doors
Page 30
OPTIONAL POSITIONING OF THERMOSTAT SENSING
bULb Continued
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 43). Slide the
thermostat sensing bulb into the clip.
IMPORTANT: Do not crimp capillary.
Thermostat
Sensing Bulb
Adhesive-backed
Mounting Clip
Capillary
Figure 43 - Positioning the Thermostat
Sensing Bulb in the Vertical Position
with the Capillary at the Bottom
Do Not Crimp
Capillary
SPECIFICATIONS
DUAL BURNER BILTMORE SPLIT OAK MODELS
CCL3018PTA
• 16,000/30,000 Btu/hr (Variable)
• Gas Type: Propane/LP
• Ignition: Piezo
• Manifold Pressure: 8" W.C.
• Inlet Gas Pressure (in. of water):
Maximum 14" W.C. Minimum* 11" W.C.
CCL3924PTA
• 20,000/39,000 Btu/hr (Variable)
• Gas Type: Propane/LP
• Ignition: Piezo
• Manifold Pressure: 8" W.C.
• Inlet Gas Pressure (in. of water):
Maximum 14" W.C. Minimum* 11" W.C.
* For the purpose of input adjustment
SINGLE BURNER SEASONAL OAK MODELS
CRL2718PA
• 16,000/27,000 Btu/hr (Variable)
• Gas Type: Propane/LP
• Ignition: Piezo
• Manifold Pressure: 8" W.C.
• Inlet Gas Pressure (in. of water):
Maximum 14" W.C. Minimum* 11" W.C.
CRL3124PA
• 16,000/31,500 Btu/hr (Variable)
• Gas Type: Propane/LP
• Ignition: Piezo
• Manifold Pressure: 8" W.C.
• Inlet Gas Pressure (in. of water):
Maximum 14" W.C. Minimum* 11" W.C.
For the purpose of input adjustment
CCL3018NTA
• 16,000/30,000 Btu/hr (Variable)
• Gas Type: Natural
• Ignition: Piezo
• Manifold Pressure: 3.5" W.C.
• Inlet Gas Pressure (in. of water):
Maximum 10.5" W.C. Minimum* 5" W.C.
CCL3924NTA
• 20,000/39,000 Btu/hr (Variable)
• Gas Type: Natural
• Ignition: Piezo
• Manifold Pressure: 3.5" W.C.
• Inlet Gas Pressure (in. of water):
Maximum 10.5" W.C. Minimum* 5" W.C.
CRL2718NA
• 16,000/27,000 Btu/hr (Variable)
• Gas Type: Natural
• Ignition: Piezo
• Manifold Pressure: 3.5" W.C.
• Inlet Gas Pressure (in. of water):
Maximum 10.5" W.C. Minimum* 5" W.C.
CRL3124NA
• 16,000/31,500 Btu/hr (Variable)
• Gas Type: Natural
• Ignition: Piezo
• Manifold Pressure: 3.5" W.C.
• Inlet Gas Pressure (in. of water):
Maximum 10.5" W.C. Minimum* 5" W.C.*
www.desatech.com
113097-01L30
Page 31
ACCESSORIES
Purchase the se acce sso rie s from your
local dealer. If they can not supply these
accessories, either contact your nearest
Parts Central or call DESA Heating, LLC at
1-866-672-6040 for information. You can also
write to the address listed on the back page
Note: Use only original replacement parts.
This will protect your warranty coverage for
parts replaced under warranty.
PARTS UNDER WARRANTY
Contact authorized dealers of this product. If
they can’t supply original replacement part(s),
call DESA Heating, LLC at 1-866-672-6040.
When calling DESA Heating, LLC, have ready:
• your name
• your address
• model and serial numbers of your heater
• how heater was malfunctioning
• purchase date
113097-01L35
www.desatech.com
Usually, we will ask you to return the part to
the factory.
PARTS NOT UNDER WARRANTY
Contact authorized dealers of this product.
If they can’t supply original replacement
part(s), either contact your nearest Parts
Central (see page 31) or call DESA Heating,
LLC at 1-866-672-6040 for referral informa-
tion. A list of authorized dealers can be found
by visiting www.desatech.com.
When calling DESA Heating, LLC, have ready:
• model and serial numbers of your heater
• the replacement part number
Page 36
113097 01
WARRANTy
kEEP THIS WARRANTy
Model (
located on product or identication tag
Serial No. (
located on product or identication tag
Date Purchased __________________________
Keep receipt for warranty verication.
DESA HEATING, LLC LIMITED WARRANTIES
Standard Warranty: DESA Heating, LLC warrants this new product and any parts thereof to be free from
defects in material and workmanship for a period of one (1) year from the date of rst purchase from an
authorized dealer provided the product has been installed, maintained and operated in accordance with
DESA Heating, LLC’s warnings and instructions.
For products purchased for commercial, industrial or rental usage, this warranty is limited to 90 days from
the date of rst purchase.
Factory Reconditioned Products
Limited Warranty: DESA Heating, LLC warrants factory reconditioned products and any parts thereof
to be free from defects in material and workmanship for 30 days from the date of rst purchase from an
authorized dealer provided the product has been installed, maintained and operated in accordance with
DESA Heating, LLC’s warnings and instructions.
Terms Common to All Warranties
The following terms apply to all of the above warranties:
Always specify model number and serial number when contacting the manufacturer. To make a claim under
this warranty the bill of sale or other proof of purchase must be presented.
This warranty is extended only to the original retail purchaser when purchased from an authorized dealer,
and only when installed by a qualied installer in accordance with all local codes and instructions furnished
with this product.
This warranty covers the cost of part(s) required to restore this product to proper operating condition and
an allowance for labor when provided by a DESA Heating, LLC Authorized Service Center or a provider
approved by DESA Heating, LLC. Warranty parts must be obtained through authorized dealers of this product and/or DESA Heating, LLC who will provide original factory replacement parts. Failure to use original
factory replacement parts voids this warranty.
Travel, handling, transportation, diagnostic, material, labor and incidental costs associated with warranty
repairs, unless expressly covered by this warranty, are not reimbursable under this warranty and are the
responsibility of the owner.
Excluded from this warranty are products or parts that fail or become damaged due to misuse, accidents,
improper installation, lack of proper maintenance, tampering, or alteration(s).
This is DESA Heating, LLC’s exclusive warranty, and to the full extent allowed by law; this express warranty
excludes any and all other warranties, express or implied, written or verbal and limits the duration of any
and all implied warranties, including warranties of merchantability and tness for a particular purpose to one
(1) year on new products and 30 days on factory reconditioned products from the date of rst purchase.
DESA Heating, LLC makes no other warranties regarding this product.
DESA Heating, LLC’s liability is limited to the purchase price of the product, and DESA Heating, LLC shall
not be liable for any other damages whatsoever under any circumstances including indirect, incidental, or
consequential damages.
Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of
incidental or consequential damages, so the above limitation or exclusion may not apply to you.
This warranty gives you specic legal rights, and you may also have other rights which vary from state to state.
For information about this warranty contact:
New Products
) _____________________________
) __________________________
NOT A UPC
DESA Heating, LLC
2701 Industrial Drive
Bowling Green, KY 42101
www.desatech.com
1-866-672-6040
113097-01
Rev. L
09/08
Loading...
+ hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.