UNVENTED (VENT-FREE)
PROPANE/LP GAS LOG HEATER
(Variable Manually-Controlled Models Also Designed-Certified as
Vented Decorative Appliances)
OWNER’S OPERATION AND INSTALLATION MANUAL
CGG2618P,
CGG3324P(T), and
CGG3630P
Thermostat and
Variably-Controlled Models
WARNING: Improper installation, adjust-
WARNING: If the information in this
ment, alteration, service, or maintenance
manual is not followed exactly, a fire or
can cause injury or property damage.
explosion may result causing property
Refer to this manual for correct installa-
damage, personal injury, or loss of life.
tion and operational procedures. For as-
— Do not store or use gasoline or other
flammable vapors and liquids in the
vicinityofthisoranyotherappliance.
sistance or additional information con-
sult a qualified installer, service agency,
or the gas supplier.
— WHAT TO DO IF YOU SMELL GAS
WARNING: This appliance is for instal-
lation only in a solid-fuel burning ma-
sonry or UL127 factory-built fireplace,
or in an approved ventless firebox. It is
design-certified for these installations
in accordance with ANS Z21.11.2. Ex-
ception: 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.
• Do not try to light any appliance.
• Donottouchanyelectricalswitch;do
not use any phone in your building.
• Immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions.
• Ifyoucannotreachyourgassupplier,
call the fire department.
— Installation and service must be per-
formed by a qualified installer, ser-
vice agency, or the gas supplier.
WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in
which it is installed. Provisions for adequate combustion and ventilation air must be
provided. Refer to Air for Combustion and Ventilation section on page 4 of this manual.
This appliance may be installed in an aftermarket* manufactured (mobile) home, where not prohibited by
state or local codes.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
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OWNER’S MANUAL
PRODUCT
PRODUCT
IDENTIFICATION
FEATURES
OPERATION
Bottom Mid
Log (#2)
This heater is clean burning. It requires no
Rear Log (#1)
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 vent-free opera-
tion. IthasbeentestedandapprovedtoANS
Z21.11.2standardforunventedheaters.State
and local codes in some areas prohibit the
use of vent-free heaters. This heater may
also be operated as a vented decorative
(ANS Z21.60) product by opening the flue
damper (non-thermostat operation only).
Top Log (#4)
Front
Burner
Rear
Burner
SAFETY PILOT
This heater has a pilot with an Oxygen
Depletion Sensor Shutoff System (ODS).
TheODS/pilotisarequiredfeatureforvent-
free room heaters. The ODS/pilot shuts off
the heater if there is not enough fresh air.
Piezo
Ignitor
Front Log (#3)
PIEZO IGNITION SYSTEM
This heater has a piezo ignitor. This system
requires no matches, batteries, or other
sources to light heater.
Base Assembly
Control Knob
Figure 1 - Vent-Free Gas Log Heater
UNPACKING
LOCAL CODES
Install and use heater with care. Follow all
local codes. In the absence of local codes, use
the latest edition of The National Fuel Gas
Code ANS Z223, also known as NFPA 54*.
CAUTION: Do not remove the
metal data plates attached to the
heater base assembly. The data
platescontainimportantwarranty
information.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
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.
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
2. Remove all protective packaging ap-
plied to logs and heater for shipment.
Note: Where listed vented decorative logs
are required, thermostat operation is not
permitted.
3. Check all items for any shipping dam-
age. If damaged, promptly inform
dealer where you bought heater.
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UNVENTED (VENT-FREE) GAS LOG HEATER
Confined and Unconfined Space
PROVIDING ADEQUATE
VENTILATION
AIR FOR
The National Fuel Gas Code (ANS Z223.1,
1992 Section 5.3) defines a confined space
as a space whose volume is less than 50
cubic feet per 1,000 Btu per hour (4.8 m3 per
kw) of the aggregate input rating of all
appliances installed in that space and an
unconfining space as a space whose volume
is not less than 50 cubic feet per 1,000 Btu
per hour (4.8 m3 per kw) of the aggregate
inputratingofallappliancesinstalledinthat
space. Rooms communicating directly with
the space in which the appliances are in-
stalled*, through openings not furnished
with doors, are considered a part of the
unconfined space.
COMBUSTION AND
VENTILATION
The following are excerpts from National
Fuel Gas Code. NFPA 54/ANS Z223.1, Sec-
tion 5.3, Air for Combustion and Ventilation.
WARNING: This heater shall
notbeinstalledinaconfinedspace
or unusually tight construction
unless provisions are provided
foradequatecombustionandven-
tilation air. Read the following in-
structions to insure proper fresh
air for this and other fuel-burning
appliances in your home.
All spaces in homes fall into one of the three
following ventilation classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
The information on pages 4 through 6 will
help you classify your space and provide
adequate ventilation.
Today’shomesarebuiltmoreenergyefficient
than ever. New materials, increased insula-
tion, and new construction methods help re-
duceheatlossinhomes.Homeownersweather
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.
Unusually Tight Construction
This heater shall not be installed in a con-
fined space or unusually tight construction
unless provisions are provided for adequate
combustion and ventilation air.
The air that leaks around doors and win-
dowsmayprovideenoughfreshairforcom-
bustion and ventilation. However, in build-
ings of unusually tight construction, you
must provide additional fresh air.
* Adjoining rooms are communicating only
iftherearedoorlesspassagewaysorventila-
tion grills between them.
Unusually tight construction is de-
fined as construction where:
While it is good to make your home energy
efficient, yourhomeneedstobreathe. Fresh
air must enter your home. All fuel-burning
appliances need fresh air for proper com-
bustion and ventilation.
a. walls and ceilings exposed to the
outside 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
Exhaustfans, fireplaces, clothesdryers, and
fuel burning appliances draw air from the
house to operate. You must provide ad-
equate fresh air for these appliances. This
will insure proper venting of vented fuel-
burning appliances.
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, be-
tween sole plates and floors, be-
tween 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 ad-
ditional fresh air. See Ventilation Air
From Outdoors, page 6.
If your home does not meet all of the
three criteria above, proceed to De-
termining Fresh-Air Flow for Heater
Location, page 5.
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OWNER’S MANUAL
AIR FOR
COMBUSTION AND
VENTILATION
Continued
DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION
Determining if You Have a Confined or Unconfined Space
Use this worksheet to determine if you have a confined or unconfined space.
Space:Includestheroominwhichyouwillinstallheaterplusanyadjoiningroomswithdoorlesspassagewaysorventilationgrillsbetween
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 20ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) = 2560 cu. ft. (volume of space)
If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms to the total volume of
the space.
2. Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.
____________________ (volume of space) ÷ 50 cu. ft. = (Maximum Btu/Hr the space can support)
Example: 2560 cu. ft. (volume of space) ÷ 50 cu. ft. = 51.2 or 51,200 (maximum Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in the space.
Vent-free heater
Gas water heater*
Gas furnace
___________________ Btu/Hr
___________________ Btu/Hr
___________________ Btu/Hr
___________________ Btu/Hr
___________________ Btu/Hr
Example:
Gas water heater
Vent-free heater
Total
40,000 Btu/Hr
33,000 Btu/Hr
73,000 Btu/Hr
Vented gas heater
Gas fireplace logs
+
=
Other gas appliances* + ___________________ Btu/Hr
Total = ___________________ Btu/Hr
* Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors and vents to the outdoors.
4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.
_________________ Btu/Hr (maximum the space can support)
_________________ Btu/Hr (actual amount of Btu/Hr used)
Example: 51,200 Btu/Hr (maximum the space can support)
73,000 Btu/Hr (actual amount of Btu/Hr used)
The space in the above example is a confined space because the actual Btu/Hr used is more than the maximum Btu/Hr the space can support.
You must provide additional fresh air. Your options are as follows:
A. Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconfined space, remove door to adjoin-
ing room or add ventilation grills between rooms. See Ventilation Air From Inside Building, page 6.
B. Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 6.
C. Install a lower Btu/Hr heater, if lower Btu/Hr size makes room unconfined.
If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an unconfined space. You will need no
additional fresh air ventilation.
WARNING: If the area in which the heater may be operated is smaller than that defined as an unconfined space
or if the building is of unusually tight construction, provide adequate combustion and ventilati7on air by one of
the methods described in the National Fuel Gas Code, ANS Z223.1, 1992, Section 5.3 or applicable local codes.
Continued
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UNVENTED (VENT-FREE) GAS LOG HEATER
AIR FOR
COMBUSTION AND
12"
VENTILATION
Continued
Ventilation
Grills
Into Adjoining
Room,
Ventilation Grills
Into Adjoining Room,
Option 2
VENTILATION AIR
Or
Ventilation Air From Inside
Building
Remove
Door into
Adjoining
Room,
Option
3
Option 1
Thisfreshairwouldcomefromanadjoining
unconfined space. When ventilating to an
adjoining unconfined space, you must pro-
vide 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 op-
tion 3, Figure 2). Follow the National Fuel
Gas Code NFPA 54/ANS Z223.1, Section
5.3, Air for Combustion and Ventilation for
required size of ventilation grills or ducts.
12"
Figure 2 - Ventilation Air from Inside Building
WARNING: Rework work-
sheet, adding the space of the
adjoining unconfined space. The
combined spaces must have
enough fresh air to supply all
appliances in both spaces.
Ventilated
Outlet
Attic
Air
Outlet
Air
Ventilation Air From Outdoors
To Attic
Provide extra fresh air by using ventilation
grills or ducts. You must provide two per-
manent openings: one within 12" of the
ceiling and one within 12" of the floor.
Connect these items directly to the outdoors
orspacesopentotheoutdoors.Thesespaces
include attics and crawl spaces.
To
Crawl
Space
Inlet
Air
IMPORTANT: Do not provide openings for
inlet or outlet air into attic if attic has a
thermostat-controlledpowervent.Heatedair
enteringtheatticwillactivatethepowervent.
Ventilated
Crawl Space
Inlet Air
Figure 3 - Ventilation Air from Outdoors
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OWNER’S MANUAL
INSTALLATION AND
CLEARANCES
(Vent-Free Operation Only)
INSTALLATION
WARNING: Never install the
heater
• in a bedroom or bathroom un-
less installed as a vented ap-
pliance, see page 10
• in a recreational vehicle
• where curtains, furniture,
clothing, or other flammable
objectsarelessthan42inches
from the front, top, or sides of
the heater
NOTICE: This heater is intended
foruseassupplementalheat.Use
this heater along with your pri-
mary heating system. Do not in-
stall this heater as your primary
heat source. If you have a central
heating system, you may run
system’scirculatingblowerwhile
using heater. This will help circu-
late the heat throughout the
house. In the event of a power
outage, you can use this heater
as your primary heat source.
WARNING:Maintainthemini-
mum clearances. If you can, pro-
vide greater clearances from
floor, ceiling, and adjoining wall.
MINIMUM FIREPLACE
CLEARANCE TO
COMBUSTIBLE MATERIALS
• in high traffic areas
• in windy or drafty areas
Log Size
Side Wall
Ceiling
CAUTION:Thisheatercreates
warmaircurrents.Thesecurrents
moveheattowallsurfacesnextto
heater. Installing heater next to
vinyl or cloth wall coverings or
operatingheaterwhereimpurities
(suchastobaccosmoke,aromatic
candles, cleaning fluids, oil or
kerosene lamps, etc.) in the air
exist, may discolor walls.
18", 24", 30"
16"
42"
WARNING: A qualified ser-
vice person must install heater.
Follow all local codes.
LOG SIZING REQUIREMENTS
Log
Minimum Firebox
Size Height Depth
Front
Width
NOTICE:Stateorlocalcodesmay
onlyallowoperationofthisappli-
ance in a vented configuration.
Check your state or local codes.
18"
24"
30"
17"
17"
17"
14"
14"
14"
20"
26"
32"
IMPORTANT: Vent-free heaters add mois-
ture to the air. Although this is beneficial,
installing heater in rooms without enough
ventilation air may cause mildew to form
from too much moisture. See Air for Com-
bustion and Ventilation, pages 4 through 6.
WARNING: Before installing
in a previously-used wood-burn-
ing fireplace, clean chimney flue
and firebox. Make sure flue is
free of any creosote. Creosote
will ignite if highly heated. A dirty
chimney flue may create and dis-
tribute soot within the house. In-
spectchimneyfluefordamage. If
damaged,operateheaterwithflue
damper closed.
Carefullyfollowtheinstructionsbelow.This
will ensure safe installation into a masonry,
UL127-listed manufactured fireplace, or
listed vent-free firebox.
Minimum Wall and Ceiling
Clearances (see Figure 4)
A. Clearances from the side of the
fireplace opening to any combustible
wall should not be less than 16 inches.
CHECK GAS TYPE
Useonlypropane/LPgas.Ifyourgassupply
is not propane/LP, do not install heater. Call
dealer where you bought heater for proper
type heater.
B. Clearances from the top of the fireplace
opening to the ceiling should not be less
than 42 inches.
WARNING: Seal any fresh air
vents or ash clean-out doors lo-
catedonfloororwalloffireplace.
If not, drafting may cause pilot
outage or sooting. Use a heat-
resistant sealant. Do not seal
chimney flue damper.
42"
16"
Left and
Right Sides
Figure4-MinimumClearancetoWalland
Ceiling
Continued
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UNVENTED (VENT-FREE) GAS LOG HEATER
If Using Mantel
if noncombustible material is more than
12", you may need the hood accessory to
deflect heat away from your mantel shelf.
See Figure 5 and Figures 6 and 7, page 9, for
minimum clearances.
INSTALLATION
You must have noncombustible material(s)
above the fireplace opening. Noncombus-
tible materials (such as slate, marble, tile,
etc.) must be at least 1/2 inch thick. With
sheet metal, you must have noncombustible IMPORTANT: If you cannot meet these
material behind it. Noncombustible mate- minimum clearances, you must operate
rial must extend at least 8 inches up (for all heater with chimney flue damper open. Go
models). If noncombustible material is less to Installing Damper Clamp Accessory for
than 12", you must install the fireplace hood Vented Operation, page 10.
accessory (24" and 30" models only). Even
Continued
NOTICE: Manual control heaters
maybeusedasaventedproduct.
If so, you must always run heater
with chimney flue damper open.
If running heater with damper
open, noncombustible material
above fireplace opening is not
needed. Go to Installing Damper
Clamp Accessory for Vented
Operation, page 10.
Noncombustible
Material Distance (A)
Requirements for
Safe Installation
Minimum Noncombustible
Material Clearances
12" or more
Noncombustible material OK.
Between 8" and 12"
24" or 30" Models: Install fireplace hood accessory
(GA6050 or GA6052, see Accessories, page 28).
If Not Using Mantel
18" Model: Noncombustible material OK. No hood
accessory needed.
Note: If using a mantel, proceed to If Using
Mantel. If not using a mantel, follow the
information on this page.
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.
You must have noncombustible material(s)
above the fireplace opening. Noncombus-
tible materials (such as slate, marble, tile,
etc.) must be at least 1/2 inch thick. With
sheet metal, you must have noncombustible
material behind it. Noncombustible mate-
rial must extend at least 8" up (for all mod-
els). 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.
Heat Resistant
Material
(A)
IMPORTANT:Ifyoucannotmeetthesemini-
mum clearances, you must operate heater
with chimney flue damper open. Go to In-
stalling Damper Clamp Accessory for
Vented Operation, page 10.
Figure 5 - Heat Resistant Material (Slate, Marble, Tile, etc.) Above Fireplace
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OWNER’S MANUAL
Mantel Shelf
INSTALLATION
10"
Continued
Underside of
Mantel Shelf
8"
6"
MANTEL CLEARANCES
2 1/2"
Inadditiontomeetingnoncombustiblemate-
rial clearances, you must also meet required
clearances between fireplace opening and
mantel shelf. If you do not meet the clear-
ances listed below, you will need a hood.
All minimum
distances are
in inches
Minimum Non-
Combustible
Material
(A)
Log Set
24"/30" Models
12"
8"
20"
14"
25"
17"
28"
19"
30"
20"
Determining Minimum Mantel
Clearance
18" Model
If you meet minimum clearance between
mantel shelf and top of fireplace opening, a
hood is not required (see Figure 6).
Top of Fireplace
Opening
Minimum Non-
Combustible
Material Height
Distances to
Underside of
Mantel
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
clearancesrequired.Followminimumclear-
ances shown in Figure 7 when using hood.
Figure 6 - Minimum Mantel Clearances Without Using Hood
Mantel Shelf
12"
Underside of
Mantel Shelf
10"
8"
NOTICE: If your installation does
notmeettheminimumclearances
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
6"
2 1/2"
All minimum
distances are
in inches
Minimum Non-
Combustible
Material
Log Sets
8"
Min.
12"
15"
18"
20"
18", 24",
& 30" Models
Top of Fireplace
Opening
Hood
(GA6050, GA6052)
Distances to
Underside of
Mantel
FLOOR CLEARANCES
A. If installing appliance on the floor level,
you must maintain the minimum dis-
tance of 14" to combustibles (see Fig-
ure 8).
B. If combustible materials are less than
14" from the fireplace, you must install
appliance at least 5" above the
combustible flooring (see Figure 9).
Figure 7 - Minimum Mantel Clearances When Using Hood
Combustible
Material
14"
Min.
Hearth
Combustible
Material
5"
Min.
Noncombustible
Material
Figure 8 - Minimum Fireplace Clearances
If Installed at Floor Level
Figure 9 - Minimum Fireplace Clearances
Above Combustible Flooring
Continued
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UNVENTED (VENT-FREE) GAS LOG HEATER
See chart below for minimum permanent
INSTALLATION
WARNING: If installing in a
sunken fireplace, special care is
needed. You must raise the fire-
place floor to allow access to
heater control panel. This will in-
sure adequate air flow and guard
against sooting. Raise fireplace
floor with noncombustible mate-
rial. Make sure material is secure.
flue opening you must provide. Attach
damper clamp so the minimum permanent
flue opening will be maintained at all times.
Continued
INSTALLING DAMPER
CLAMP ACCESSORY FOR
VENTED OPERATION
Chimney Minimum Permanent
Height (ft.) Flue Opening (sq. ins.)
6' to 15'
15' to 30'
39 sq. inches
29 sq. inches
Note: When used as a vented heater, appli-
ance must be installed only in a solid-fuel
burning fireplace with a working flue and
constructed of noncombustible material.
Area of Various Standard
Round Flues
CAUTION: Do not pick up
heater base assembly by burn-
ers. This could damage heater.
Only handle base assembly by
grates.
Ifyourheaterisamanuallycontrolledmodel,
you may use this heater as a vented product.
There are three reasons for operating your
heater in the vented mode.
Diameter (ins.)
5"
Area (sq. ins.)
20 sq. inches
6"
7"
8"
29 sq. inches
39 sq. inches
51 sq. inches
1. The fireplace does not meet the
clearance to combustibles requirements
for vent-free operation.
CAUTION: Do not remove the
metal data plates attached to the
heater base assembly. The data
platescontainimportantwarranty
information.
2. State or local codes do not permit vent-
free operation.
INSTALLING HEATER BASE
ASSEMBLY
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
28). This will insure vented operation (see
Figure 10). The damper clamp will keep
damper open. Installation instructions are
included with clamp accessory.
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.
IMPORTANT:Makesuretheheaterburners
are level. If heater is not level, heater will not
workproperly. Forthermostatmodels, avoid
damage to thermostat bulb. Avoid nicks or
sharp bends in thermostat bulb wire. Keep
thermostat bulb in mounting bracket.
Damper
Clamp
Damper
Damper
Clamp
Damper
Damper
Masonry Fireplace
Manufactured Fireplace
Figure 10 - Attaching Damper Clamp
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OWNER’S MANUAL
Heater Gas
Regulator
INSTALLATION
Installation Items Needed
• hardware package (provided with heater)
• approved flexible gas hose (not provided)
(if allowed by local codes)
Flexible Gas Hose (if
allowed by local codes)
• sealant (resistant to propane/LP gas, not
provided)
Figure 11 - Attaching Flexible Gas Hose to Heater Gas Regulator
• electric drill with 3/16" masonry drill bit
1. Apply pipe joint sealant lightly to male
threads of gas connector and install into
regulator. Connect approved flexible
gas hose to gas regulator of heater (see
Figure 11).
Masonry
Screw
IMPORTANT: Hold gas regulator with
wrench when connecting fittings.
2. Position heater base assembly in fire-
place.
3. Mark screw locations through holes in
front of base. If installing in a brick-
bottom fireplace, mark screw locations
in mortar joint of bricks.
4. Remove heater base from fireplace.
5. Drill holes at marked locations using
3/16" drill bit. Drill at a 45° angle.
6. Attach base to fireplace floor using
masonry screws in hardware
package (see Figure 12).
7. Connect to gas supply. See Connecting
To Gas Supply, page 12.
Figure 12 - Attaching Heater to Fireplace Floor
Continued
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UNVENTED (VENT-FREE) GAS LOG HEATER
External Regulator
Installation must include a manual shutoff
valve, union, and plugged 1/8" NPT tap.
Locate NPT tap within reach for test gauge
hook up. NPT tap must be upstream from
heater (see Figure 14).
Propane/LP
Supply Tank
INSTALLATION
CONNECTING TO GAS
SUPPLY
Apply pipe joint sealant lightly to male
threads. This will prevent excess sealant
from going into pipe. Excess sealant in pipe
could result in clogged heater valves.
WARNING: A qualified ser-
vice person must connect heater
to gas supply. Follow all local
codes.
CAUTION:Usepipejointseal-
ant that is resistant to liquid pe-
troleum (LP) gas.
CAUTION: Never connect
heater directly to the propane/LP
supply. This heater requires an
externalregulator(notsupplied).
Install the external regulator be-
tweentheheaterandpropane/LP
supply.
Installsedimenttrapinsupplylineasshown
in Figure 14. Locate sediment trap where it
is within reach for cleaning. Locate sedi-
ment 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.
Vent Pointing Down
Figure 13 - External Regulator With Vent
Pointing Down
Installation Items Needed
WARNING: Never connect
heater to private (non-utility) gas
wells. This gas is commonly
known as wellhead gas.
Beforeinstallingheater,makesureyouhave
the items listed below.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/ LP gas)
• manual shutoff valve *
• test gauge connection *
• sediment trap
CAUTION: Avoid damage to
regulator.Holdgasregulatorwith
wrenchwhenconnectingittogas
piping and/or fittings.
CAUTION: Use only new,
black iron or steel pipe. Inter-
nally-tinned copper tubing may
be used in certain areas. Check
yourlocalcodes. Usepipeof1/2"
diameter or greater to allow
proper gas volume to heater. If
pipe is too small, undue loss of
pressure will occur.
• tee joint
• pipe wrench
* An CSA design-certified manual shutoff
valve with 1/8" NPT tap is an acceptable
alternative to test gauge connection. Pur-
chase the optional CSA design-certified
manual shutoff valve from your dealer. See
Accessories, page 28.
CSA Design-Certified
Manual Shutoff Valve With
1/8" NPT Tap*
From External
Regulator
(11" W.C.** to
Approved Flexible
Gas Hose (if allowed
by local codes)
14" W.C. Pressure)
The installer must supply an external regu-
lator. The external regulator will reduce
incoming gas pressure. You must reduce
incominggaspressuretobetween11and14
inches of water. If you do not reduce incom-
ing gas pressure, heater regulator damage
could occur. Install external regulator with
the vent pointing down as shown in Figure
13. Pointing the vent down protects it from
freezing rain or sleet.
Tee Joint
Pipe
3" Minimum
Nipple
Cap
Gas
Regulator
Sediment Trap
Figure 14 - Gas Connection
* Purchase the optional CSA design-certified manual shutoff valve from your dealer. See
Accessories, page 28.
** Minimum inlet pressure for purpose of input adjustment.
103425
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OWNER’S MANUAL
TestPressuresEqualToorLessThan
1/2 PSIG
Pressure Testing Heater Gas
Connections
1. Open manual shutoff valve (see Fig-
ure 15).
INSTALLATION
Continued
1. Close manual shutoff valve (see Fig-
ure 15).
CHECKING GAS
CONNECTIONS
2. Pressurize supply piping system by ei-
ther using compressed air or opening
propane/LP supply tank valve.
2. Open propane/LP supply tank valve.
3. Make sure control knob of heater is in
the OFF position.
WARNING: Test all gas pip-
ing and connections for leaks
after installing or servicing. Cor-
rect all leaks at once.
3. Check all joints from propane/LP sup-
ply tank to manual shutoff valve (see
Figure 16). Apply mixture of liquid
soap and water to gas joints. Bubbles
forming show a leak.
4. Check all joints from manual shutoff
valve to thermostat gas valve (thermo-
stat-controlled models) or control valve
(variably-controlled models) (see Fig-
ure 16). Apply mixture of liquid soap
and water to gas joints. Bubbles form-
ing show a leak.
WARNING:Neveruseanopen
flame to check for a leak. Apply a
mixture of liquid soap and water
toalljoints.Bubblesformingshow
a leak. Correct all leaks at once.
4. Correct all leaks at once.
Manual
Shutoff
Valve
Open
5. Correct all leaks at once.
6. Light heater (see Operating Heater,
pages 15 and 16 [Thermostat-
Controlled Models] or pages 16
and 17 [Variable Manually-
Controlled Models]). Check all other
internal joints for leaks.
CAUTION: Make sure exter-
nal regulator has been installed
between propane/LP supply and
heater.SeeguidelinesunderCon-
necting to Gas Supply, page 12.
O
Closed
7. Turn off heater (see To Turn Off Gas to
Appliance, page 16 [Thermostat-Con-
trolled Models] or page 17
Figure 15 - Manual Shutoff Valve
Pressure Testing Gas Supply
Piping System
[Variable
Manually-Controlled
Models]).
TestPressuresInExcessOf1/2PSIG
Manual
Shutoff
Valve
1. Disconnect heater and its individual
manual shutoff valve from gas supply
piping system. Pressures in excess of
1/2 psig will damage heater regulator.
Propane/LP
Supply Tank
2. Cap off open end of gas pipe where
manual shutoff valve was connected.
3. Pressurize supply piping system by ei-
ther using compressed air or opening
propane/LP supply tank valve.
4. Check all joints of gas supply piping
system. Apply mixture of liquid soap
and water to gas joints. Bubbles form-
ing show a leak.
5. Correct all leaks at once.
Thermostat Gas Valve or
Control Valve Location
6. Reconnect heater and manual shutoff
valve to gas supply. Check re-
connected fittings for leaks.
Figure 16 - Checking Gas Joints
Continued
103425
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UNVENTED (VENT-FREE) GAS LOG HEATER
Front Log (#3)
INSTALLATION
Rear Log (#1)
Continued
INSTALLING LOGS
WARNING: Failure to position
thepartsinaccordancewiththese
diagrams or failure to use only
3
parts specifically approved with
this heater may result in property
damage or personal injury.
Each log is marked with a number. These
numberswillhelpyouidentifythelogwhen
installing. It is very important to install
these logs exactly as instructed. Do not
modify logs. Only use logs supplied with
heater.
Figure 19 - Installing Front Log
Top Log (#4)
Figure 17 - Installing Rear Log
Bottom Mid Log (#2)
1. Slide rear log (#1) into place behind
rear burner. Make sure flat areas at bot-
tom of log are behind front burner (see
Figure 17).
4
4
2 . Slide bottom mid log (#2) into place in
behind front burner. Make sure tabs at
bottom of log are behind rear burner
(see Figure 18).
2
Tab
3. Place front log (#3) into place in front
of bottom mid log (#2) (see Figure 19).
Make sure notches on bottom rest on
grate prongs.
4. Finally place top log (#4) over bottom
mid log (#2) by matching the notches
under log (#4) with the raised blocks
of log (#2) (see Figure 20).
Figure 20 - Installing Top Log
Figure 18 - Installing Bottom Mid Log
103425
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OWNER’S MANUAL
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 in-
formation, column 1. If you don’t
LIGHTING
INSTRUCTIONS
OPERATING
HEATER
Thermostat-Controlled
Models
WARNING:
• If fireplace has glass doors,
never operate this heater with
glassdoorsclosed.Ifyouoper-
ate heater with doors closed,
heatbuildupinsidefireplacewill
cause glass to burst. Also if
fireplace opening has vents at
the bottom, you must open the
vents before operating heater.
• You must operate this heater
withafireplacescreeninplace.
Make sure fireplace screen is
closed before running heater.
smell gas, go to the next step.
FOR YOUR SAFETY
READ BEFORE
LIGHTING
5. Turn control knob counterclockwise
to the PILOT position. Press
in control knob for five (5) seconds
(see Figure 21).
• Ifcontrolknobdoesnotpopoutwhen
released, contact a qualified service
person or gas supplier for repairs.
WARNING: If you do not fol-
low these instructions exactly, a
fireorexplosionmayresultcaus-
ing property damage, personal
injury or loss of life.
Note: You may be running this
heater for the first time after hook-
ing up to gas supply. If so, the con-
trol knob may need to be pressed in
for 30 seconds or less. This will allow
air to bleed from the gas system.
A. This appliance has a pilot which must
be lighted by hand. When lighting the
pilot, follow these instructions
exactly.
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 igni-
tor button until pilot lights.
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.Thiswillonlylastafewhours.
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.
Note: If pilot does not stay lit, con-
tact a qualified service person or gas
supplier for repairs. Until repairs are
made, light pilot with match. To light
pilot with match, see Manual Light-
ing Procedure, page 16.
WHAT TO DO IF YOU SMELL
GAS
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 chim-
ney damper (if you have one) fully or
partially to release some of the heat.
• 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 sup-
plier, call the fire department.
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.
C. Use only your hand to push in or turn
the gas control knob. Never use tools.
If the knob will not push in or turn
by hand, don’t try to repair it, call a
qualified service technician or gas
supplier. Force or attempted repair
may result in a fire or explosion.
WARNING: Damper handle
will be hot if heater has been
running.
8. Turn control knob counterclockwise
to desired heating level. The
1. STOP! Read the safety information
in column 1.
burners should light. Set control knob
to any heat level between HI and LO.
2. Make sure manual shutoff valve is
fully open.
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 un-
der water.
CAUTION:Donottrytoadjust
heating levels by using the
manual shutoff valve.
3. Turn control knob clockwise
to the OFF position.
Ignitor Electrode
Thermocouple
Pilot Burner
HI
PILOT
OFF
LO
Control Knob
Ignitor Button
Figure 21 - Control Knob and Ignitor
Button Location
Figure 22 - Pilot
Continued
103425
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UNVENTED (VENT-FREE) GAS LOG HEATER
Variable Manually-Controlled
Models
LIGHTING
INSTRUCTIONS
OPERATING
HEATER
FOR YOUR
SAFETY READ
BEFORE LIGHTING
Continued
WARNING:
• If fireplace has glass doors,
never operate this heater with
glassdoorsclosed.Ifyouoper-
ate heater with doors closed,
heatbuildupinsidefireplacewill
cause glass to burst. Also if
fireplace opening has vents at
the bottom, you must open the
vents before operating heater.
• You must operate this heater
withafireplacescreeninplace.
Make sure fireplace screen is
closed before running heater.
TO TURN OFF GAS
TO APPLIANCE
WARNING: If you do not fol-
low these instructions exactly, a
fireorexplosionmayresultcaus-
ing property damage, personal
injury or loss of life.
Shutting Off Heater
Turn control knob clockwise
to the OFF position.
Shutting Off Burners Only (pilot
stays lit)
A. This appliance has a pilot which
must be lighted by hand. When light-
ing the pilot, follow these
instructions exactly.
Turn control knob clockwise
to the PILOT position.
THERMOSTAT
CONTROL OPERATION
(Thermostat-Controlled
Models Only)
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.
NOTICE:Duringinitialoperationof
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.
Thethermostatcontrolknobcanbesetto
any comfort level between Hi and Lo.
The thermostat will gradually modulate
the heat output and flame height from
higher to lower settings, or pilot, in order
to maintain the comfort level you select.
The ideal comfort setting will vary by
household depending upon the amount
of space to be heated, the output of the
central heating system, etc.
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 sup-
plier, call the fire department.
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
High heat setting but will find the heat
output excessive. You can open the chim-
ney damper (if you have one) fully or
partially to release some of the heat.
Note: Selecting the Hi setting with the
control knob will cause the burners to
remainfullyon,withoutmodulatingdown
in most cases.
C. Use only your hand to push in or turn
the gas control knob. Never use tools.
If the knob will not push in or turn
by hand, don’t try to repair it, call a
qualified service technician or gas
supplier. Force or attempted repair
may result in a fire or explosion.
WARNING: Damper handle
will be hot if heater has been
running.
MANUAL LIGHTING
PROCEDURE
1. Follow steps 1 through 5 under Light-
ing Instructions, page 15.
1. STOP! Read the safety information
column 2.
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 un-
der water.
2. Make sure manual shutoff valve is
fully open.
2. Depress control knob and light pilot
with match.
3. Press in and turn control knob clock-
3. Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob. Now
follow step 8, page 15.
wise
to the OFF
Clockwise
position.
HI
PILOT
OFF
LO
Control Knob
Ignitor Button
Figure 23 - Control Knob and Ignitor Button Location
103425
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OWNER’S MANUAL
VARIABLE CONTROL
OPERATING
INSPECTING
BURNERS
OPERATION
HEATER
The variable control valve can be set to
any heat setting and flame height desired
Continued
Check pilot flame pattern and burner flame
patterns often.
4. Wait five (5) minutes to clear out any between high and low by simply turning
gas. Then smell for gas, including the control knob until that setting is at-
near the floor. If you smell gas, tained. Even the lowest setting provides
STOP! Follow “B” in the safety in- realisticflamesandglowingembersfrom
formation, page 16. If you don’t smell twoburners.Selectinghighersettingspro-
PILOT FLAME PATTERN
Figure25showsacorrectpilotflamepattern.
Figure 26 shows an incorrect pilot flame
pattern.Theincorrectpilotflameisnottouch-
ing the thermocouple. This will cause the
thermocouple to cool. When the thermo-
couple cools, the heater will shut down.
gas, go to the next step.
duces greater heat output. This results in
increased heating comfort.
5. Press in control knob and turn counter-
clockwise
to the PILOT posi-
C-clockwise
tion. Keep control knob pressed in for
five (5) seconds (see Figure 23, page 16).
• Ifcontrolknobdoesnotpopoutwhen
released, contact a qualified service
person or gas supplier for repairs.
WARNING: Do not operate
heater between pilot and high.
If pilot flame pattern is incorrect, as shown
in Figure 26
• turn heater off (see To Turn Off Gas to
Appliance, page 16 [Thermostat-Con-
trolled Models] or page 17 or [Variable
Manually-Controlled Models])
CAUTION:Donottrytoadjust
heating levels by using the
manual shutoff valve.
Note: You may be running this
heater for the first time after hook-
ing up to gas supply. If so, the con-
trol knob may need to be pressed in
for 30 seconds. This will allow air to
bleed from the gas system.
• see Troubleshooting, pages 19 through 21
TO TURN OFF GAS
TO APPLIANCE
Thermocouple
Pilot Burner
Shutting Off Heater
1. Press in and turn control knob clock-
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 igni-
tor button until pilot lights.
wise
to the HIGH position.
Clockwise
2. Turn the control knob clockwise
to the PILOT position.
Clockwise
Note: If pilot does not light, contact
a qualified service person or gas sup-
plier for repairs. Until repairs are
made, light pilot with match. To light
pilot with match, see Manual
Lighting Procedure.
3. Press in control knob and turn clock-
wise
to the OFF Position.
Clockwise
Figure 25 - Correct Pilot Flame Pattern
Shutting Off Burners Only (pilot
stays lit)
1. Turn the control knob clockwise
Thermocouple
Pilot Burner
7. Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob.
to the HIGH position.
Clockwise
2. Press in and turn control knob clock-
wise
to the pilot position.
Clockwise
Note: If pilot goes out, repeat steps
3 through 7.
MANUAL LIGHTING
PROCEDURE
1. Follow steps 1 through 5 under Light-
ing Instructions, page 16.
8. Push in and turn control knob coun-
Figure 26 - Incorrect Pilot Flame Pattern
C-clockwise
terclockwise
position. Both burners should light.
Set control knob to desired setting.
to the HIGH
2. Depress control knob and light pilot
with match.
Ignitor Electrode
Thermocouple
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 Burner
Figure 24 - Pilot
Continued
103425
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UNVENTED (VENT-FREE) GAS LOG HEATER
4. Check the injector holder located at the
INSPECTING
CLEANING AND
MAINTENANCE
end of the burner tube again. Remove
any large particles of dust, dirt, lint, or
pet hairs with a soft cloth or vacuum
cleaner nozzle.
BURNERS
Continued
WARNING: Turn off heater
and let cool before cleaning.
FRONT BURNER FLAME
PATTERN
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.
Figure 27 shows correct front burner flame
pattern. Figure 28 shows incorrect front
burner flame pattern. The incorrect burner
flamepatternshowsyellowtippingattopof
blue flame.
CAUTION: You must keep
control areas, burners, and cir-
culating air passageways of
heater clean. Inspect these areas
of heater before each use. Have
heaterinspectedyearlybyaquali-
fied service person. Heater may
needmorefrequentcleaningdue
to excessive lint from carpeting,
bedding material, pet hair, etc.
Clean the pilot assembly also. A yellow tip
on the pilot flame indicates dust and dirt in
the pilot assembly. There is a small pilot air
inlet hole about two inches from where the
pilot flame comes out of the pilot assembly
(see Figure 30). With the unit off, lightly
blow air through the air inlet hole. You may
blowthroughadrinkingstrawifcompressed
air is not available.
WARNING: If yellow tipping
occurs, your heater could pro-
duce increased levels of carbon
monoxide. If front burner flame
patternshowsyellowtipping,fol-
low instructions at bottom of this
page.Yellowflameonrearburner
is normal.
CLEANING BURNER
INJECTOR HOLDER AND
PILOT AIR INLET HOLE
Injector Holder
The primary air inlet holes allow the proper
amount of air to mix with the gas. This
provides a clean burning flame. Keep these
holesclearofdust, dirt, andlint. Cleanthese
air inlet holes prior to each heating season.
Blocked air holes will create soot. We rec-
ommend that you clean the unit every 2,500
hours of operation or every three months.
NOTICE: Do not mistake orange
flames with yellow tipping. Dirt
or other fine particles are burned
by heater, causing brief patches
of orange flame.
Ports/Slots
Burner
Tube
If front burner flame pattern is incorrect, as
shown in Figure 28
Primary Air Inlet
Holes
• turn heater off (see To Turn Off Gas to Wealsorecommendthatyoukeeptheburner
Appliance, page 16 [Thermostat-Con- tube and pilot assembly clean and free of
trolled Models] or page 17 [Variable dustanddirt.Tocleanthesepartswerecom-
Figure 29 - Injector Holder On Outlet
Burner Tube
Manually-Controlled Models])
mend using compressed air no greater than
30 PSI. Your local computer store, hard-
ware store, or home center may carry com-
pressed 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 direc-
tions on the can. If you don't follow direc-
tions on the can, you could damage the pilot
assembly.
Pilot Air Inlet
Hole
• see Troubleshooting, pages 19 through 21
Pilot Assembly
Figure 27 - Correct Front Burner Flame
1. Shut off the unit, including the pilot.
Allow the unit to cool for at least thirty
minutes.
Pattern
Figure 30 - Pilot Inlet Air Hole
Yellow Tipping At
Top of Blue Flame
2. Inspect burner, pilot, and primary air
inlet holes on injector holder for dust
and dirt (see Figure 29).
LOGS
• If you remove logs for cleaning, refer to
Installing Logs, page 14, to properly re-
place logs.
3. Blow air through the ports/slots and
holes in the burner.
• Replace log(s) if broken or chipped
(dime-sized or larger).
Figure 28 - Incorrect Front Burner Flame
Pattern
103425
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OWNER’S MANUAL
TROUBLESHOOTING
Note: For additional help, visit DESA
International’s Technical Service web
WARNING: Turn off and un-
CAUTION: Never use a wire,
needle, or similar object to clean
ODS/pilot.ThiscandamageODS/
pilot unit.
plug heater and let cool before
servicing. Only a qualified ser-
vice person should service and
repair heater.
Note:Alltroubleshootingitemsarelistedin
order of operation.
REMEDY
OBSERVED PROBLEM
POSSIBLE CAUSE
1. Reconnect ignitor cable
When ignitor button is pressed, there is no 1. Ignitor electrode not connected to igni-
spark at ODS/pilot
tor cable
2. Ignitor cable pinched or wet
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.
3. Piezo ignitor nut is loose
4. Replace ignitor cable
4. Broken ignitor cable
5. Replace piezo ignitor
5. Bad piezo ignitor
6. Replace piezo ignitor
6. Ignitor electrode broken
7. Replace piezo ignitor
7. Ignitor electrode positioned wrong
1. Turn on gas supply or open manual
shutoff valve
When ignitor button is pressed, there is 1. Gas supply turned off or manual shutoff
spark at ODS/pilot but no ignition
valve closed
2. Turn control knob to PILOT position
3. Press in control knob while in PILOT
position
2. Control knob not in PILOT position
3. Control knob not pressed in while in PI-
LOT position
4. Continue holding down control knob. Re-
peat igniting operation until air is removed
5. Contact local propane/LP gas company
6. Clean ODS/pilot (see Cleaning and
Maintenance, page 18) or replace ODS/
pilot assembly
4. Air in gas lines when installed
5. Depleted gas supply
6. ODS/pilot is clogged
7. Replace gas regulator
7. Gas regulator setting is not correct
1. Press in control knob fully
ODS/pilot lights but flame goes out when 1. Control knob not fully pressed in
2. After ODS/pilot lights, keep control
knob pressed in 30 seconds
control knob is released
2. Control knob not pressed in long enough
3. Wait one minute for safety interlock sys-
tem to reset. Repeat ignition operation
4. Fully open manual shut-off valve
5. A) Contact local propane/LP gas company
3. Safety interlock system has been trig-
gered (thermostat models only)
4. Manual shutoff valve not fully open
5. Pilot flame not touching thermocouple,
which allows thermocouple to cool,
causing pilot flame to go out. This prob-
lem could be caused by one or both of
the following:
B) Clean ODS/pilot (see Cleaning and
Maintenance, page 18) or replace ODS/
pilot assembly
A) Low gas pressure
B) Dirty or partially clogged ODS/pilot
6. Thermocouple connection loose at con-
trol valve
7. Thermocouple damaged
8. Control valve damaged
6. Hand tighten until snug, then tighten 1/4
turn more
7. Replace thermocouple
8. Replace control valve
Continued
103425
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UNVENTED (VENT-FREE) GAS LOG HEATER
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
POSSIBLE CAUSE
REMEDY
One or both burners do not light after ODS/
pilot is lit
1. Burner orifice(s) clogged
1. Clean burner(s) (see Cleaning and
Maintenance, page 18) or replace
burner orifice(s)
2. Inlet gas pressure is too low
3. Mislocated crossover tube
4. Burner orifice(s) diameter is too small
2. Contact local propane/LP gas company
3. Contact qualified service person
4. Replace burner orifice(s)
Delayed ignition of one or both burners
Burner backfiring during combustion
1. Manifold pressure is too low
2. Burner orifice(s) clogged
1. Contact local propane/LP gas company
2. Clean burner(s) (see Cleaning and
Maintenance, page 18) or replace
burner orifice(s)
3. Mislocated crossover tube
3. Contact qualified service person
1. Burner orifice is clogged or damaged
1. Clean burner (see Cleaning and Mainte-
nance, page 18) or replace burner orifice
2. Replace damaged burner
2. Damaged burner
3. Gas regulator defective
3. Replace gas regulator
Yellow flame in front burner during burner
combustion
1. Not enough air
1. Check burner(s) for dirt and debris. If
found, clean burner(s) (see Cleaning
and Maintenance, page 18)
2. Gas regulator defective
2. Replace gas regulator
Slight smoke or odor during initial operation 1. Residues from manufacturing processes
and logs curing
1. Problem will stop after a few hours of
operation
Moisture/condensationnoticedonwindows 1. Not enough combustion/ventilation air
1. Refer to Air for Combustion and Venti-
lation requirements (page 4)
Heater produces a whistling noise when 1. Turning control knob to HI position
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 lo-
cal propane/LP gas company
burners are lit
when burners are cold
2. Air in gas line
3. Air passageways on heater blocked
3. Observe minimum installation clear-
ances (see pages 7 through 9)
4. Dirty or partially clogged burner 4. Clean burners (see Cleaning and Main-
orifice(s)
tenance, page 18) or replace burner
orifice(s)
Whitepowderresidueformingwithinburner
box or on adjacent walls or furniture
1. When heated, vapors from furniture pol- 1. Turn heater off when using furniture
ish, wax, carpet cleaners, etc. turn into
polish, wax, carpet cleaners, or similar
products
white powder residue
103425
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OWNER’S MANUAL
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.
• Immediatelycallyourgassupplierfromaneighbor’sphone. Followthe
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.
REMEDY
OBSERVED PROBLEM
POSSIBLE CAUSE
1. This is common with most heaters. If
noise is excessive, contact qualified ser-
vice person
Heater produces a clicking/ticking noise 1. Metal expanding while heating or con-
just after burners are lit or shut off
tracting while cooling
1. Open window to ventilate room. Stop us-
ing odor causing products while heater
is running
Heater produces unwanted odors
1. Heater burning vapors from paint, hair
spray, glues, cleaners, chemicals, new
carpet, etc. (See IMPORTANT state-
ment above)
2. Refill supply tank
2. Low fuel supply
3. Locate and correct all leaks (see
Checking Gas Connections, page 13)
3. Gas leak. SeeWarning statement at
top of page
1. Open window and/or door for ventilation
2. Contact local propane/LP gas company
3. Clean ODS/pilot (see Cleaning and
Maintenance, page 18)
Heater shuts off in use (ODS operates)
1. Not enough fresh air is available
2. Low line pressure
3. ODS/pilot is partially clogged
1. Locate and correct all leaks (see
Checking Gas Connections, page 13)
2. Replace control valve
Gas odor even when control knob is in OFF 1. Gas leak. SeeWarning statement at
position
top of page
2. Control valve defective
1. Take apart gas tubing and remove for-
eign matter
Gas odor during combustion
1. Foreign matter between control valve
and burner
2. Locate and correct all leaks (see
Checking Gas Connections, page 13)
2. Gas leak. SeeWarning statement at
top of page
1. Reposition thermostat sensing bulb (see
Instructions for Optional Positioning of
Thermostat Sensing Bulb, page 23)
Log set cycles to pilot, but room tempera- 1. Thermostat sensing bulb needs to be re-
ture drops to a lower than ideal level before
log set comes back on
positioned
103425
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UNVENTED (VENT-FREE) GAS LOG HEATER
4. The mounting clip must be a minimum
OPTIONAL
of 3" from bottom of fireplace to pre-
vent 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 bot-
tom (see Figure 37). Slide the thermo-
stat sensing bulb into the clip.
Thermostat
Sensing Bulb
POSITIONING OF
THERMOSTAT
Adhesive-backed
Mounting Clip
SENSING BULB
FOR MASONRY AND
FACTORY-BUILT METAL
FIREPLACE
Figure 34 - Locating Thermostat Sensing
Bulb on Masonry 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.
IMPORTANT: Do not crimp capillary.
Thermostat
Sensing
Bulb
The thermostat sensing bulb is located on
the gas valve assembly. This location al-
lows the thermostat to keep the room tem-
perature at an ideal comfort level for most
fireplace applications. For positioning the
thermostatsensingbulbelsewhere,anadhe-
sive-backed mounting clip is available.
Adhesive-
backed
Mounting Clip
Figure 35 - Locating Thermostat Sensing
Bulb on Factory-built Metal Fireplace
Gas Valve
Assembly
Tools needed:
•
5/16" hex driver or socket
Thermostat
Sensing Bulb
Thermostat
Sensing
Bulb
1. Locate the gas valve assembly and ther-
mostat sensing bulb (see Figure 31).
2. With 5/16" hex driver or socket, loosen
the thermostat screw. Carefully slide
the thermostat sensing bulb out of the
retaining clamp (see Figure 33).
Figure 31 - Location of Gas Valve
Assembly and Thermostat Sensing Bulb
Note: Do not remove the screw. Make
sure you tighten the screw after remov-
ing the thermostat sensing bulb.
Adhesive-
backed
Mounting
Clip
IMPORTANT: Do not force or bend the
thermostat sensing bulb or capillary. A
crimped capillary will not allow ther-
mostat to operate properly. It cannot be
repaired, the valve must be replaced.
Glass Doors
Figure 32 - Adhesive-backed Mounting
Clip
Figure36-InstallingThermostatSensing
Bulb behind Glass Doors
Capillary
Thermostat
Sensing
Bulb
3. The thermostat sensing bulb may be
located to the lower right front side of
fireplace. Determine location of sens-
ing bulb, but do not mount sensing bulb
until step 5. If you have a masonry fire-
place, see Figure 34 for location.
Adhesive-
backed
Mounting
Thermostat
Sensing
Clip
Screw
Capillary
If you have a factory-built metal fire-
place, see Figure 35 for location.
Bulb
Retaining
Do Not Crimp
Capillary
Clamp
If your fireplace has glass doors, posi-
tion sensing bulb directly behind door
gap on right bottom side (see Figure 36).
Figure33-RemovingThermostatSensing
Bulb
Figure 37 - Positioning the Thermostat
Sensing Bulb in the Vertical Position
with the Capillary at the Bottom
103425
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OWNER’S MANUAL
SPECIFICATIONS
Model
CGG3324PT
CGG2618P
CGG3324P
CGG3630P
Btu (Variable)
20,000/33,000
16,000/26,000
20,000/33,000
21,500/36,000
Type Gas
Propane/LP Only
Piezo
Propane/LP Only
Piezo
Propane/LP Only
Piezo
Propane/LP Only
Piezo
Ignition
Manifold Pressure
7.9" W.C.
7.9" W.C.
7.9" W.C.
7.9" W.C.
Inlet Gas Pressure (in. of water)
Maximum
14"
11"
14"
11"
14"
11"
14"
11"
Minimum*
Shipping Weight
38 lbs.
36 lbs.
38 lbs.
40 lbs.
* For purpose of input adjustment
SERVICE HINTS
REPLACEMENT
PARTS
When Gas Pressure Is Too Low
• pilot will not stay lit
Note: Use only original replacement parts.
Thiswillprotectyourwarrantycoveragefor
parts replaced under warranty.
• burners will have delayed ignition
• heater will not produce specified heat
• propane/LP gas supply may be low
PARTS UNDER WARRANTY
Contact authorized dealers of this product.
If they can’t supply original replacement
part(s), call DESA International’s Techni-
cal Service Department at 1-800-323-5190.
When Gas Quality Is Bad
• pilot will not stay lit
• burners will produce flames and soot
• heater will backfire when lit
When calling DESA International, have
Youmayfeelyourgaspressureistoolowor ready
gas quality is bad. If so, contact your local
• your name
propane/LP gas supplier.
• your address
• model and serial numbers of your heater
• how heater was malfunctioning
• type of gas used (propane/LP or natural gas)
• purchase date
TECHNICAL
SERVICE
You may have further questions about in-
stallation, operation, or troubleshooting.
Usually, we will ask you to return the defec-
tive part to the factory.
If so, contact DESA International’s Techni-
calServiceDepartmentat1-800-DESALOG
(1-800-337-2564).
PARTS NOT UNDER
WARRANTY
You can also visit DESA International’s
Technical Service web site at
Contact authorized dealers of this product. If
theycan’tsupplyoriginalreplacementpart(s),
either contact your nearest Parts Central (see
page 28) or call DESA International’s Parts
Department at 1-800-972-7879 for referral
information.
WhencallingDESAInternational,haveready
• model number of your heater
• the replacement part number
103425
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UNVENTED (VENT-FREE) GAS LOG HEATER
ILLUSTRATED
PARTS
4
BREAKDOWN
VARIABLE MANUALLY-
CONTROLLED MODELS
CGG2618P
2
CGG3324P
CGG3630P
1
3
27
27-1
27-2
21
25
7-2
7-1
5
10
6
7
29
8
9
29
23
22
11
24
13
21
25
12
17
16
26
15
19
14
18
20
103425
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OWNER’S MANUAL
This list contains replaceable parts used in your heater. When ordering parts, follow the
instructions listed under Replacement Parts on page 23 of this manual.
PARTS LIST
VARIABLE MANUALLY-
CONTROLLED MODELS
CGG2618P
CGG3324P
CGG3630P
KEY
NO.
PART NUMBER FOR
CGG2618P
CGG3324P
CGG3630P DESCRIPTION
QTY.
1
2
3
4
5
6
7
103681-04
103681-02
103681-01
103681-03
098249-01
101006-01
101330-01
103682-04
103682-02
103682-01
103682-03
098249-01
101006-01
101330-05
101008-01
101007-01
100999-02
101331-08
098271-06
102445-01
098867-10
M11084-38
101011-02
098354-01
098462-03
098325-01
098508-01
102568-02
101005-01
M11084-26
101004-01
101004-02
102258-01
099387-08
098276-01
099059-02
098594-01
098593-01
103683-04
103683-02
103683-01
103683-03
098249-01
101006-01
101330-06
101008-01
101007-01
100999-03
101331-09
098271-06
102445-01
098867-10
M11084-38
101011-03
098354-01
098462-03
098325-01
098508-01
102568-02
101005-01
M11084-26
101004-02
101004-06
102258-01
099387-08
098276-01
099059-02
098594-01
098593-01
Rear Log (#1)
Bottom Mid Log (#2)
Front Log (#3)
Top Log (#4)
Nut
Pilot Bracket
Front Burner Assembly
Crossover Burner Gasket
Crossover Burner
Rear Burner Assembly
Base Assembly (Includes Decals)
Ignitor Cable
PiezoIgnitor
Gas Regulator
Screw
Inlet Tube
Control Knob
Control Rod
Roll Pin
Valve Retainer Nut
Gas Valve
Valve Bracket
Screw
Rear Burner Injector
Front Burner Injector
Burner Tube
1
1
1
1
4
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
4
1
7-1 101008-01
7-2 101007-01
100999-01
8
9
101331-10
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
098271-07
102445-01
098867-10
M11084-38
101011-01
098354-01
098462-03
098325-01
098508-01
102568-02
101005-01
M11084-26
101004-10
101004-10
102258-01
099387-08
098276-01
099059-02
1
1
1
1
1
1
Pilot Tube
1/8” Plug
O.D.S. Pilot
Ignitor Electrode
Thermocouple
27-1 098594-01
27-2 098593-01
PARTS AVAILABLE — NOT SHOWN
100563-01
101054-01
100565-01
100639-01
101137-03
101416-28
GA6060
100563-01
101054-01
100565-01
100639-01
101137-03
101416-28
GA6060
100563-01
101054-01
100565-01
100639-01
101137-03
101416-28
GA6060
Warning Plate
1
1
1
1
1
1
1
Lighting Instructions Plate
Warning Plate Fastener
Caution Decal
Hardware Kit
Information Video
Lava Rock
103425
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UNVENTED (VENT-FREE) GAS LOG HEATER
ILLUSTRATED
PARTS
4
BREAKDOWN
THERMOSTAT-
CONTROLLED MODELS
CGG3324PT
2
1
3
7
7-1
7-2
6
29
8
10-2
13
9
10
10-1
8
11
12
8
27
26
13
6
28
14
25
5
16
15
24
19
29
18
17
21
20
23
22
30
103425
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OWNER’S MANUAL
This list contains replaceable parts used in your heater. When ordering parts, follow the
instructions listed under Replacement Parts on page 23 of this manual.
PARTS LIST
THERMOSTAT-
CONTROLLED MODEL
KEY PART
NO. NUMBER
CGG3324PT
DESCRIPTION
QTY.
1
2
3
4
5
6
7
103682-04
103682-02
103682-01
103682-03
102764-01
Rear Log (#1)
Bottom Mid Log (#2)
Front Log (#3)
Top Log (#4)
Heat Shield
Screw
O.D.S. Pilot
Ignitor
Thermocouple
Nut
Pilot Bracket
Front Burner Assembly
Gasket, Crossover Burner
Crossover Burner
Rear Burner Assembly
Base Assembly (with decals)
Ignitor Cable
Piezo Ignitor
Gas Regulator
Screw
Inlet Tube
Control Knob
Control Rod
Cotter Pin
1
1
1
1
1
5
1
1
1
4
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
M11084-26
099059-02
7-1 098594-01
7-2 098593-01
098249-01
8
9
101006-01
101330-05
10
10-1 101008-01
10-2 101007-01
11
100999-02
101331-08
098271-06
102445-01
098867-10
M11084-38
102810-02
098354-01
102013-01
100000-01
101053-01
099211-01
098544-01
101329-18
100994-01
101004-01
101004-02
102811-01
099387-09
102255-01
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Adapter
Screw
Thermostat Clamp
Thermostat Gas Valve Assy.
Thermovalve Bracket
Rear Burner Injector
Front Burner Injector
Thermostat Burner Tube
Pilot Tube
Strap
PARTS AVAILABLE — NOT SHOWN
100563-01
Warning Plate
1
1
1
1
1
1
1
101054-01
100565-01
100639-01
101137-03
101416-28
GA6060
Lighting Instructions Plate
Warning Plate Fastener
Caution Decal
Hardware Kit
Information Video
Lava Rock
103425
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UNVENTED (VENT-FREE) GAS LOG HEATER
East Coast Energy Products
707 Broadway
W. Long Branch, NJ 07764
908-870-8809
1-800-755-8809
PARTS CENTRALS
These Parts Centrals are privately owned busi-
nesses. They have agreed to support our
customer’sneedsbyprovidingoriginalreplace-
ment parts and accessories. When calling a
Parts Central, ask for the Parts Department.
ACCESSORIES
Purchasetheseheateraccessoriesfromyour
local dealer. If they can not supply these
accessories,callDESAInternational’sParts
Department at 1-800-972-7879 for infor-
mation. You can also write to the address
listed on the back page of this manual.
Parts Department
Tarantin Tank Co.
P.O. Box 6129
Freehold, NJ 07728
Baltimore Electric
1348 Dixwell Avenue
Hamden, CT 06514
1-800-397-7553
908-780-9340
1-800-922-0724
Parts Department
203-248-7553
Parts Department
Albany Ladder
1586-90 Central Avenue
Albany, NY 07728
NY, MA, VT
1-800-354-7368
518-869-5335
Portable Heater Parts
342 N. County Rd. 400 East
Valparaiso, IN 46383
All States
219-462-7441
1-800-362-6951
MANUAL SHUTOFF VALVE
GA5010
Forallmodels.Manualshutoffvalvewith1/8"
NPT tap. Fits 1/2" NPT pipe.
Parts Department
Parts Department
Dayton Hardware
P.O. Box 275
North Dayton Station
Dayton, OH 45404
All States
F B D
P. O. Box 1096
1720 Kummer Road
Franklin, KY 42134
502-586-1922
1-800-654-8534
513-258-3721
OH 1-800-762-3426
Parts Department
FIREPLACE HOOD
Black - GA6050
Four Flags Power Products
1115 Stateline Road
Niles, MI 49120
616-684-2697
Parts Only
Brass - GA6052
Halco Enterprises
208 Carter Drive, Unit 21
West Chester, PA 19382
610-430-7717
For all models. Helps deflect heat away
from mantel or wall above fireplace.
US 1-800-368-0803
Parts Department
DAMPER CLAMP - GA6080
(Not Shown)
Master Parts Distributors
1184 Wilson Ave. NW
Walker, MI 49504
Forvariablycontrolledmodels.Permanently
opens chimney flue damper for vented op-
eration. Can be used only with non-thermo-
stat accessories.
LA Porte's Parts & Service
2444 North 5th Street
Hartsville, SC 29550
803-332-0191
616-791-0505
US 1-800-446-1446
Fax: 616-791-8270
Parts Department
LAVA ROCK - GA6060
(Not Shown)
Parts Department
Washer Equipment Co.
1715 Main Street
Kansas City, MO 64108
KS, MO, AR
816-842-3911
Parts Department
For all models. Order when additional rock
is desired. (3 lb. bag)
Cans Unlimited, Inc.
P.O. Box 645
Taylor, SC 29687
All States
803-879-3009
1-800-845-5301
Parts Department
103425
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OWNER’S MANUAL
NOTES
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_______________________________________________________________________________________________
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_______________________________________________________________________________________________
_______________________________________________________________________________________________
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_______________________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
103425
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WARRANTY INFORMATION
KEEP THIS WARRANTY
Model
Serial No.
Date Purchased
Always specify model and serial numbers when communicating with the factory.
We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written warranty.
We make no other warranty, expressed or implied.
LIMITED WARRANTY
COMFORT GLOW VENT-FREE PROPANE/LP GAS LOG HEATERS
DESA International warrants this product to be free from defects in materials and components for two (2) years from the date of first
purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions.
To make a claim under this warranty the Bill of Sale or cancelled check must be presented.
This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s) required to restore this heater to
proper operating condition and an allowance for labor when provided by a DESA Authorized Service Center. Warranty part(s) MUST
be obtained through authorized dealers of this product and/or DESA International who will provide original factory replacement parts.
Failure to use original factory replacement parts voids this warranty. The heater MUST be installed by a qualified installer in accordance
with all local codes and instructions furnished with the unit.
This warranty does not apply to parts that are not in original condition because of normal wear and tear, or parts that fail or become
damaged as a result of misuse, accidents, lack of proper maintenance or defects caused by improper installation. Travel, diagnostic cost,
labor, transportation and any and all such other costs related to repairing a defective heater will be the responsibility of the owner.
TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE PRODUCT;
THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND LIMITS THE DURA-
TION OF ANY AND ALL IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS
FORAPARTICULARPURPOSETOTWO(2)YEARSFROMTHEDATEOFFIRSTPURCHASE;ANDDESAINTERNATIONAL’S
LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND DESA INTERNATIONAL SHALL
NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT, INCIDENTAL OR CONSEQUEN-
TIAL DAMAGES.
Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of incidental or consequential
damages, so the above limitation on implied warranties, or exclusion or limitation on damages may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights that vary from state to state.
For information about this warranty write:
INTERNATIONAL
2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004
103425 01
103425-01
Rev. D
11/01
NOT A UPC
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