®
UNVENTED (VENT-FREE)
NATURAL GAS LOG HEATER
VARIABLE MANUALLY-CONTROLLED MODELS ALSO DESIGN-CERTIFIED
AS A VENTED DECORATIVE APPLIANCE
OWNER’S OPERATION AND INSTALLATION MANUAL
FLAME-MAX®
Golden Oak Log
Design
®
18", 24", 30", and 36"
Remote Ready Model
Patent Pending
REMOTE
OFF
WARNING: Improper installation, ad-
WARNING: If the information in this
justment, alteration, service, or main-
manual is not followed exactly, a fire or
tenance can cause injury or property
explosion may result causing property
damage. Refer to this manual for cor-
damage, personal injury, or loss of life.
rect installation and operational pro-
— Do not store or use gasoline or other
flammablevaporsandliquidsinthevicinity
of this or any other appliance.
cedures. For assistance or additional
informationconsultaqualifiedinstaller,
service agency, or the gas supplier.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do
not use any phone in your building.
• Immediatelycallyourgassupplierfrom
a neighbor’s phone. Follow the gas
supplier’s instructions.
WARNING: This appliance is for in-
stallation only in a solid-fuel burning
masonry,UL127factory-builtfireplace,
or in an approved ventless firebox. It
is design certified for these installa-
tionsinaccordancewithANSZ21.11.2.
Exceptions: Do not install this appli-
ance in a factory-built fireplace that
includes instructions stating it has
not been tested or should not be used
with unvented gas logs.
• If you cannot reach your gas supplier,
call the fire department.
— Installation and service must be per-
formed by a qualified installer, service
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
Flame-Max®
OPERATION
Golden Oak Logs
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,dancingyellowflames.Thisheater
is designed for vent-free operation with flue
damper closed. It has been tested and ap-
proved to ANS 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 product (ANS Z21.60)
by opening flue damper (non-thermostat
operation only).
One Piece
Log Set
Optional
Remote
Control
HI
MAN
TEMP
LO
AUT
O
ON
OFF
ST
A
TUS
Piezo
Ignitor
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.
Optional
Selector
Switch
Flame
Adjustment
Knob
Base Assembly
Control Knob
PIEZO IGNITION SYSTEM
This heater has a piezo ignitor. This system
requires no matches, batteries, or other
sources to light heater.
Figure 1 - Product Identification
UNPACKING
LOCAL CODES
REMOTE CONTROL
ACCESSORIES
Install and use heater with care. Follow all
localcodes.Intheabsenceoflocalcodes,use
the latest edition of The National Fuel Gas
Code ANS Z223.1, also known as NFPA 54*.
CAUTION: Do not remove the
metal Data Plates from the grate
assembly.TheDataPlatescontain
important product information.
There are four optional remote controls that
can be purchased separately for this log
heater:
*Available from:
American National Standards Institute, Inc.
1430 Broadway
1. Remove logs and heater base assem-
bly from carton. Note: Do not pick up
heater base assembly by the burner.
This could damage heater. Always
handle base assembly by grate.
• wall switch
• wall thermostat
New York, NY 10018
• hand held ON/OFF remote
• hand held thermostat remote
National Fire Protection Association, Inc.
Batterymarch Park
2. Remove all protective packaging ap-
plied to logs and heater for shipment.
3. Check all items for any shipping dam-
age. If damaged, promptly inform
dealer where you bought heater.
Quincy, MA 02269
See Accessories, page 25.
Note: Where listed vented decorative logs
are required, thermostat operation is not
permitted.
The wall thermostat or hand-held thermo-
stat may not be used where vented decora-
tive listing is required.
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VANGUARD FLAME MAX®
UNVENTED NATURAL 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
unconfined space as a space whose volume
is not less than 50 cubic feet per 1,000 Btu
per hour (4.8 m3 per kw) of the aggregate
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-
tion5.3, AirforCombustionandVentilation.
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’s homes are built more energy effi-
cient than ever. New materials, increased
insulation, and new construction methods
help reduce heat loss in homes. Home own-
ers weather strip and caulk around windows
and doors to keep the cold air out and the
warm air in. During heating months, home
ownerswanttheirhomesasairtightaspossible.
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-
dows may provide enough fresh air for
combustion and ventilation. However, in
buildings 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, your home needs to breathe. 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 con-
tinuous water vapor retarder with
a rating of one perm (6x10-11 kg
per pa-sec-m2) or less with open-
ings gasketed or sealed and
Exhaustfans, fireplaces, clothesdryers, and
fuel burning appliances draw air from the
house to operate. You must provide ad- b. weather stripping has been
equate fresh air for these appliances. This
will insure proper venting of vented fuel-
burning appliances.
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, be-
tween wall panels, at penetra-
tions 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 Deter-
miningFresh-AirFlowForHeaterLo-
cation, 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 work sheet 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 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) = 2560 cu. ft. (volume of space)
If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms to the total volume of
the space.
2. Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.
_______________ (volume of space) ÷ 50 cu. ft. = (maximum Btu/Hr the space can support)
Example: 2560 cu. ft. (volume of space) ÷ 50 cu. ft. = 51.2 or 51,200 (maximum Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in the space.
Vent-free heater
Gas water heater*
Gas furnace
Vented gas heater
Gas fireplace logs
______________ Btu/Hr
______________ Btu/Hr
______________ Btu/Hr
______________ Btu/Hr
______________ Btu/Hr
Example:
Gas water heater
Vent-free heater
Total
40,000 Btu/Hr
39,000 Btu/Hr
79,000 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.
4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.
____________Btu/Hr (maximum the space can support)
____________Btu/Hr (actual amount of Btu/Hr used)
Example: 51,200 Btu/Hr (maximum the space can support)
79,000 Btu/Hr (actual amount of Btu/Hr used)
The space in the above example is a confined space because the actual Btu/Hr used is more than the maximum Btu/Hr the space can support.
You must provide additional fresh air. Your options are as follows:
A. Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconfined space, remove door to 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 ventilation 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
105273
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VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
AIR FOR
COMBUSTION AND
12"
VENTILATION
Continued
Ventilation
VENTILATION AIR
Ventilation Grills
Into Adjoining Room,
Option 2
Grills
Into Adjoining
Room,
Ventilation Air From Inside
Building
Or
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
Attic
Outlet
Air
Ventilation Air From Outdoors
Outlet
Air
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 Attic
To
Crawl
Space
IMPORTANT: Do not provide openings for
inlet or outlet air into attic if attic has a
thermostat-controlledpowervent.Heatedair
enteringtheatticwillactivatethepowervent.
Inlet
Air
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
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 log heater. This will help
circulate the heat throughout the
house. In the event of a power
outage, you can use this heater
as your primary heat source.
• 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
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: This heater cre-
ates warm air currents. These
currents move heat to wall sur-
faces next to heater. Installing
heater next to vinyl or cloth wall
coverings or operating heater
where impurities (such as to-
bacco smoke, aromatic candles,
cleaning fluids, oil or kerosene
lamps, etc.) in the air exist, may
discolor walls.
18", 24",
16"
42"
30", and 36"
NOTICE: A qualified service per-
son must install heater. Follow
all local codes.
LOG SIZING REQUIREMENTS
Log
Minimum Firebox Size
Size Height Depth Front Rear*
Width Width
NOTICE:Stateorlocalcodesmay
onlyallowoperationofthisappli-
ance in a vented configuration.
Check your state or local codes.
18"
24"
30"
36"
17"
17"
17"
17"
14"
14"
14"
14"
24"
28"
34"
40"
20"
21"
24"
30"
WARNING: Before installing
in a solid fuel burning fireplace,
thechimneyflueandfireboxmust
be cleaned of soot, creosote,
ashes and loose paint by a quali-
fied chimney cleaner. 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.
IMPORTANT:Vent-freeheatersaddmois-
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.
*Measured at 14" depth
Carefullyfollowtheinstructionsbelow.This
will ensure safe installation into a masonry,
UL127-listedmanufacturedfireplace,orcer-
tified vent free firebox.
Minimum Wall and Ceiling
Clearances (see Figure 4)
A. Clearances from the side of the fire-
place opening to any combustible wall
should not be less than 16 inches.
CHECK GAS TYPE
Use only natural gas. If your gas supply is
not natural gas, do not install heater. Call
dealer where you bought heater for proper
type heater.
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
105273
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VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
If Using Mantel
Even if noncombustible material is more
INSTALLATION
than 12", you may need the hood accessory
to deflect heat away from your mantel shelf.
See Figure 5 and Figures 6 and 7 on page 9
for minimum clearances.
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", 30" and 36" models only).
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 Op-
eration, 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", 30", or 36" Models: Install fireplace hood ac-
cessory (GA6050, GA6052 or GA6053 see Acces-
sories, page 25).
If Not Using Mantel
Note: If using a mantel, proceed to If Using
Mantel. If not using a mantel, follow the
information below.
18" Model: Noncombustible material OK.
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 material
must extend at least 8" up (for all models). If
noncombustiblematerialislessthan12",you
must install the fireplace hood accessory
(24", 30" and 36" models only). See Figure 5
at right for minimum clearances.
Heat Resistant
Material
(A)
IMPORTANT: If you cannot meet these
minimum clearances, you must operate
heater with chimney flue damper open. Go
to Installing Damper Clamp Accessory for
Vented Operation, page 10.
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
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OWNER’S MANUAL
Mantel Shelf
Underside of
Mantel Shelf
INSTALLATION
Continued
MANTEL CLEARANCES
10"
8"
6"
2 1/2"
In addition to meeting noncombustible ma-
terial clearances, you must also meet re-
quired clearances between fireplace opening
and mantel shelf. If you do not meet the
clearanceslistedbelow, youwillneed ahood.
All minimum
distances are
in inches
Minimum Non-
Combustible
Material
(A)
Log Set
24"/30"/36" Models
Determining Minimum Mantel
Clearance
12"
8"
18"
8"
20"
14"
22"
24"
163/4" 20"
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
All Models
8"
Min.
12"
15"
18"
20"
Top of Fireplace
Opening
FLOOR CLEARANCES
Hood
or GA6053)
Distances to
Underside of
Mantel
(GA6050, GA6052,
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" to the fireplace, you must install
appliance at least 5" above the combus-
tible flooring (see Figure 9).
Figure 7 - Minimum Mantel Clearances When Using Hood
Combustible
Material
Hearth
Combustible
14"
Min.
Material
5"
Min.
Noncombustible Material
Figure 9 - Minimum Fireplace Clearances
Above Combustible Flooring
Figure 8 - Minimum Fireplace Clearances
If Installed at Floor Level
Continued
105273
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VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
See chart below for minimum permanent
INSTALLING HEATER BASE
ASSEMBLY
INSTALLATION
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
CAUTION: Do not remove the
metal Data Plates attached to the
heater base assembly. The Data
Platescontainimportantwarranty
information.
Chimney
Minimum Permanent
Height (ft.) Flue Opening (sq. ins.)
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 non combustible material.
6' to 15'
15' to 30'
39 sq. inches
29 sq. inches
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.
Area of Various Standard
Round Flues
Ifyourheaterisamanuallycontrolledmodel,
you may use this heater as a vented product.
There are three reasons for operating your
heater in the vented mode:
Diameter (ins.)
Area (sq. ins.)
5"
6"
7"
8"
20 sq. inches
29 sq. inches
39 sq. inches
51 sq. inches
1. The fireplace does not meet the clear-
ance to combustibles requirements for
vent-free operation
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.
2. State or local codes do not permit vent-
free operation
3. You prefer vented operation
Ifreasons number 1 or 2 above apply toyou,
you must permanently open chimney flue
damper. You must install the damper clamp
accessory (to order, see Accessories, page
25). This will insure vented operation (see
Figure 10). The damper clamp will keep
damper open. Installation instructions are
included with clamp accessory.
CAUTION: Do not pick up
heater base assembly by the
burner. This could damage
heater. Only handle base assem-
bly by grates.
IMPORTANT:Makesuretheheaterburner
is level. If heater is not level, heater will not
work properly.
Damper
Clamp
Damper
Damper
Clamp
Damper
Damper
Masonry Fireplace
Manufactured Fireplace
Figure 10 - Attaching Damper Clamp
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OWNER’S MANUAL
INSTALLATION
Continued
Installation Items Needed
• hardware package (provided with heater)
Flexible Gas
Hose (if allowed
by local codes)
• approved flexible gas hose (not provided)
(if allowed by local codes)
Fitting
• sealant (resistant to LP gas, not provided)
• electric drill with 3/16" drill bit (metal
or masonry as applicable)
• flathead screwdriver
1. Apply pipe joint sealant lightly to male
threads of the fitting to be threaded into
gas regulator. Connect approved flex-
ible gas hose to gas regulator of heater
(see Figure 11).
Figure 11 - Attaching Flexible Gas Hose to Heater
IMPORTANT: Hold gas regulator with
wrench when connecting flexible gas
hose.
2. Locate two masonry screws in hard-
ware package.
Masonry Screw
3. Place heater base in fireplace.
4. Place logs in their proper position on
heater base.
5. Center heater base and logs front-to-
back and side-to-side in fireplace.
6. Carefully remove logs without moving
heater base.
7. Mark screw locations through one hole
on each side of the mounting bracket
(see Figure 12). If installing in a brick-
bottom fireplace, mark screw locations
in mortar joint of bricks.
8. Remove heater base from fireplace.
Mounting Flanges
9. Drill holes at marked locations using
3/16" drill bit.
10. Attach base assembly to fireplace floor
using two masonry screws (in hardware
package).
Figure 12 - Attaching Base Assembly to Fireplace Floor
11. Connect to gas supply. See Connect-
ing To Gas Supply, page 12.
12. Replace logs on heater base.
Continued
105273
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VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
INSTALLATION
WARNING: Never connect
heater to private (non-utility) gas
wells. This gas is commonly
known as wellhead gas.
CAUTION:Usepipejointseal-
ant that is resistant to liquid pe-
troleum (LP) gas.
Continued
CONNECTING TO GAS
SUPPLY
Installsedimenttrapinsupplylineasshown
in Figure 13. 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.
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.
NOTICE: A qualified service per-
son must connect heater to gas
supply. Follow all local codes.
Installation Items Needed
Beforeinstallingheater,makesureyouhave
the items listed below.
• piping (check local codes)
• sealant (resistant to LP gas)
• manual shutoff valve *
• test gauge connection *
• sediment trap
CAUTION: Avoid damage to
control. Hold gas fitting with
wrenchwhenconnectingittogas
piping and/or fittings.
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 13).
• tee joint
• pipe wrench
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.
* AnA.G.A.design-certifiedmanualshutoff
valve with 1/8" NPT tap is an acceptable
alternative to test gauge connection. Pur-
chase the optional A.G.A. design-certified
manual shutoff valve from your dealer. See
Accessories, page 25.
A.G.A. Design-Certified
Manual Shutoff Valve With
1/8" NPT Tap*
Approved Flexible Gas
Hose (if allowed by
local codes)
From Gas Meter (5"
W.C.** to 10.5" W.C.
Pressure)
Gas Control
Tee Joint
Sediment
Trap
Pipe Nipple
3" Minimum
Cap
Figure 13 - Gas Connection
* Purchase the optional A.G.A. design-certified manual shutoff valve from your dealer. See Accessories, page 25.
** Minimum inlet pressure for purpose of input adjustment.
105273
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OWNER’S MANUAL
TestPressuresEqualToorLessThan
1/2 PSIG
Pressure Testing Heater Gas
Connections
1. Open manual shutoff valve (see Fig-
ure 14).
INSTALLATION
Continued
1. Close manual shutoff valve (see Fig-
ure 14).
CHECKING GAS
CONNECTIONS
2. Pressurize supply piping system by ei-
ther using compressed air or opening
main gas valve located on or near gas
meter.
2. Open main gas valve located on or near
gas meter.
WARNING: Test all gas pip-
ing and connections for leaks
after installing or servicing. Cor-
rect all leaks at once.
3. Make sure control knob of heater is in
the OFF position.
3. Check all joints from gas meter to
manual shutoff valve (see Figure 15).
Apply mixture of liquid soap and wa-
ter to gas joints. Bubbles forming show
a leak.
4. Check all joints from manual shutoff
valve to control valve (see Figure 15).
Apply mixture of liquid soap and wa-
ter to gas joints. Bubbles forming show
a leak.
WARNING: Never use an
open flame to check for a leak.
Apply a mixture of liquid soap
and water to all joints. Bubbles
forming show a leak. Correct all
leaks at once.
4. Correct all leaks at once.
5. Correct all leaks at once.
6. Light heater (see Operating Heater,
pages 15 through 17). Check all other
internal joints for leaks.
Manual
Shutoff
Valve
Open
7. Turn off heater (see To Turn Off Gas to
Pressure Testing Gas Supply
Piping System
Appliance, page 16).
TestPressuresInExcessOf1/2PSIG
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.
Closed
Figure 14 - Manual Shutoff Valve
2. Cap off open end of gas pipe where
manual shutoff valve was connected.
Manual
Shutoff
Valve
3. Pressurize supply piping system by ei-
ther using compressed air or opening
main gas valve located on or near gas
meter.
Control Valve Location
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.
Gas Meter
5. Correct all leaks at once.
6. Reconnect heater and manual shutoff
valve to gas supply. Check reconnected
fittings for leaks.
Figure 15 - Checking Gas Joints
Continued
105273
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VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
INSTALLATION
One Piece Log Set
Continued
INSTALLING LOGS
WARNING: Failure to posi-
tion the parts in accordance with
these diagrams or failure to use
only parts specifically approved
withthisheatermayresultinprop-
erty damage or personal injury.
Middle
CAUTION: After installation
andperiodicallythereafter,check
to ensure that no flame comes in
contact with any log. With the
heater set to High, check to see if
flames contact any log. If so, re-
position logs according to the
loginstallationinstructionsinthis
manual. Flames contacting logs
will create soot.
Section at
Bottom of
Log Set
Burner
Chassis
Itisveryimportanttoinstallthelogsexactly
as instructed. Do not modify logs. Only use
logs supplied with heater.
"U"-shaped
Cutout in Chassis
1. Place one-piece log set on grate to fit
as illustrated in Figure 16. Make sure
middle section at bottom of log set is
seated into "U"-shaped cutout in cen-
ter of chassis (see Figure 16). Log will
fit securely on chassis. Note: 36" model
has more features but fits on the chas-
sis the same. IMPORTANT: Make sure
log does not cover any burner ports.
Figure 16 - Installing Golden Oak One-Piece Log Set
One Piece
Log Set
Burner
ports
2. Place lava rock around base of heater.
Figure 17 - Installing Golden Oak One-Piece Log Set (Top View)
105273
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OWNER’S MANUAL
LIGHTING
INSTRUCTIONS
OPERATING
HEATER
WARNING: Burner will come
on automatically within one
minute when the selector switch
is in the ON position after the
WARNING:
FOR YOUR SAFETY
• If fireplace has glass doors,
never operate this heater with
glass doors closed. If you op-
erateheaterwithdoorsclosed,
heat buildup inside fireplace
will cause glass to burst. Also
if fireplace opening has vents
at the bottom, you must open
the vents before operating
heater.
pilot is lit.
READ BEFORE
LIGHTING
4. Press in and turn control knob clock-
wise
to the OFF position.
WARNING: If you do not fol-
low these instructions exactly, a
fireorexplosionmayresultcaus-
ing property damage, personal
injury or loss of life.
5. Wait five (5) minutes to clear out any
gas. Then smell for gas, including
near the floor. If you smell gas,
STOP! Follow “B” in the safety in-
formation. If you don’t smell gas, go
to the next step.
A. This appliance has a pilot which must
be lighted by hand. When lighting the
pilot, follow these instructions exactly.
• You must operate this heater
withafireplacescreeninplace.
Make sure fireplace screen is
closed before running heater.
6. Press in and turn control knob coun-
terclockwise
position. Press in control knob for
five (5) seconds (see Figure 18).
to the PILOT
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: 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 more. This will al-
low air to bleed from the gas system.
NOTICE: During initial operation
of new heater, burning logs will
give off a paper-burning smell.
Open damper or window to vent
smell. This will only last a few
hours.
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.
7. With control knob pressed in, press
and release ignitor button. This will
light pilot. The pilot is attached to the
front burner. If needed, keep press-
ing ignitor button until pilot lights.
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
chimney damper (if you have one) fully
or partially to release some of the heat.
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 on page 16.
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.
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.
1. STOP! Read the safety information,
column 1.
2. Make sure manual shutoff valve is
fully open.
3. Set switch to OFF position.
Flame Adjustment Knob
Control Knob
I
AUTO
OFF
ON
O
N O
I
T O
O
Selector Switch in OFF Position
Ignitor Button
Figure 18 - Control Knob and Ignitor Button Location (Shown as Supplied,
No Control Options)
Continued
105273
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VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
For wall thermostat operation, follow in-
TO TURN OFF GAS
TO APPLIANCE
OPERATING
struction supplied with thermostat acces-
sory GWMT1. For wall switch operation
followinstructionssuppliedwithGWMS2.
HEATER
Shutting Off Heater
Continued
1. Turn control knob clockwise
to the OFF position.
8. Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob.
• If control knob does not pop out
when released, contact a qualified
service person or gas supplier for
repairs.
NOTICE: You must light the pilot
before using the hand-held re-
mote control unit. See Lighting
Instructions on page 15.
2a. Set selector switch in the OFF position.
2b. If Using Optional Hand-Held Re-
mote: Set selector switch in the OFF
position to keep from draining battery.
1. After lighting, let pilot flame burn for
about one minute. Turn control knob
to ON position. Adjust flame adjust-
ment knob anywhere between HI
and LO. Slide the selector switch to
the REMOTE position. Note: The
burner may light if hand-held remote
ON button was on when selector
switch was last turned off. You can
now turn the burner on and off with
the hand-held remote control unit.
Note: If pilot goes out, repeat steps
4 through 8.
Shutting Off Burner Only (pilot
stays lit)
9. Slightly push in and turn control
Youmayshutofftheburnerandkeepthe
pilot lit by doing one of the following:
knob counterclockwise
the ON position.
to
1. Turn control knob clockwise
to the PILOT position.
10. Wait one minute and switch selector
switch to the ON position to light
burner. Note:AUTO is only functional
when using GWMT1 or GWMS2 op-
tional accessories.
2. UseremotecontrolmanualOFFbutton.
3. Set selector switch in the OFF position.
IMPORTANT: Do not leave the se-
lector switch in the REMOTE posi-
tion when the pilot is not lit. This will
drain the battery.
MANUAL LIGHTING
PROCEDURE
1. Follow steps 1 through 6 under Light-
11. Set flame adjustment knob to any
level between HI and LO.
IMPORTANT: Be sure to press the
ON/OFF buttons on the hand held
remote control unit for up to 3 sec-
onds to assure proper operation.
ing Instructions, page 15.
CAUTION:Donottrytoadjust
heating levels by using the
manual shutoff valve.
2. Depress control knob and light pilot
with match.
3. Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob. Now
follow steps 9 through 11.
WARNING: Make sure the
selector switch is in the OFF po-
sition when you are away from
home for long periods of time.
Heater will come on automati-
cally with selector switch in the
ON position.
GHRC Operation:
2a. Press the ON/OFF button to turn the
burner on and off. When turning
burner off, the pilot will remain lit.
OPTIONAL REMOTE
OPERATION
GHRCT Operation:
2b. Select the MAN (manual) or AUTO
button on the hand-held remote con-
trol unit (see Figure 21, page 17).
• In manual mode, turn burner on
or off by pressing the ON or OFF
buttons on the hand-held remote
control unit.
Note:Allremotecontrolaccessoriesmust
bepurchasedseparately(seeAccessories,
page 25). Follow instructions included
with the remote control.
Pilot Burner
Ignitor Electrode
Thermostat Control Operation
(Optional GHRCT Only) The thermo-
stat control setting on the remote control
unit can be set to any comfort level be-
tween HI and LO. The burner will turn
on and off automatically to maintain the
comfort level you select. The ideal com-
fort setting will vary by household de-
pending upon the amount of space to be
heated, the output of the central heating
system, etc.
• In auto mode, the room tempera-
ture is controlled by the thermostat
in the hand-held remote control
unit.To increase the room tempera-
ture, press the top arrow of the
TEMP button. To lower room the
temperature, press the bottom ar-
row of theTEMP button.At higher
settings the heater will run longer.
Figure 19 - Pilot
105273
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OWNER’S MANUAL
3. Use the STATUS button on the hand-
OPERATING
INSPECTING
BURNERS
held remote control unit to see the
operation mode being used and the
temperature setting selected. A red
light will come on beside the opera-
tion mode being used when the sta-
tus button is pressed.
HEATER
Continued
Check pilot flame pattern and burner flame
patterns often.
IMPORTANT: This remote control
has been specially engineered to
take an air temperature sample ev-
ery 5.5 minutes in theAUTO mode.
It will not respond immediately to
the temperature setting being
turned up or down.
IMPORTANT: The hand-held re-
mote control unit must be near the
heater. Do not keep the hand-held
remote control unit too close the
heater. The thermostat on the
hand-held remote control unit will
heat up too quickly and turn the
heater off.
PILOT FLAME PATTERN
4. To turn the burner off when operating
in the manual mode, press the OFF
button. If operating in the auto mode,
press the MAN button, then press the
OFF button. The pilot will remain lit.
IMPORTANT: To turn the pilot off,
manually turn the control knob on the
heater to the OFF position.
Figure 22 shows a correct pilot flame pat-
tern.Figure23showsanincorrectpilotflame
pattern.Theincorrectpilotflameisnottouch-
ing the thermocouple. This will cause the
thermocouple to cool. When the thermo-
couple cools, the heater will shut down.
If pilot flame pattern is incorrect, as shown
in Figure 23
• turn heater off (see To Turn Off Gas to
Appliance, page 16)
•
see Troubleshooting, pages 19 through 21
Thermocouple
Control Knob in
On Position
Pilot Burner
Flame Adjustment Knob
P
F
ON
OFF
REMOTE
O
Figure 22 - Correct Pilot Flame Pattern
Pilot Burner
Selector Switch in Remote Position (Optional
Remote Control)
Thermocouple
Figure 20 - Setting the Selector Switch, Control Knob, and Flame
Adjustment Knob for Remote Operation
Figure 23 - Incorrect Pilot Flame Pattern
Shows Temperature Setting
HI
Increases Room
Temperature
BURNER PRIMARY AIR HOLES
Air is drawn into the burner through the
holes in the fitting at the burner entrance.
These holes may become blocked with dust
or lint. Periodically inspect these holes for
any blockage and clean if needed. Blocked
air holes will create soot.
TEMP
Decreases Room
Temperature
Allows Burner to be Turned
On and Off with the Hand-
Held Remote Unit.
LO
MAN
ON
Turns Burner On
and Off
AUTO
OFF
The log heater will
automatically cycle between
pilot and the heat setting that
has been selected.
MAIN BURNER
Shows Current
Operation Mode
STATUS
Periodically inspect all burner flame holes
with the heater running. All slotted burner
flame holes should be open with yellow
flame present. All round burner flame holes
should be open with a small blue flame
present. Some burner flame holes may be-
comeblockedbydebrisorrust,withnoflame
present. If so, turn off heater and let cool.
Either remove blockage or replace burner.
Blocked burner flame holes will create soot.
Figure 21 - Thermostat Hand-Held Remote Control Unit Selections
105273
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VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
4. Check the injector holder located at the
LOGS
CLEANING AND
end of the burner tube again. Remove
• If you remove logs for cleaning, refer to
Installing Logs, page 14, to properly re-
place logs.
MAINTENANCE
any large particles of dust, dirt, lint, or
pet hairs with a soft cloth or vacuum
cleaner nozzle.
WARNING: Turn off heater
and let cool before cleaning.
• Replace log(s) if broken or chipped
(dime-sized or larger).
5. Blow air into the primary air holes on
the injector holder.
6. In case any large clumps of dust have MAIN BURNER
CAUTION: You must keep
control areas, burner, and circu-
lating 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,
pet hair, bedding material, etc.
now been pushed into the burner repeat
Periodically inspect all burner flame holes
steps 3 and 4.
with the heater running. All slotted burner
flame holes should be open with yellow
flame present. All round burner flame holes
should be open with a small blue flame
present. Some burner flame holes may be-
come blocked by debris or rust, with no
flame present. If so, turn off heater and let
cool. Either remove blockage or replace
burner. Blocked burner flame holes will
create soot.
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 25). With the unit off, lightly
blow air through the air inlet hole. You may
blowthroughadrinkingstrawifcompressed
air is not available.
CLEANING BURNER
INJECTOR HOLDER AND
PILOT AIR INLET HOLE
Injector Holder
Burner
(May Be Brass
Tube
or Aluminum
Depending on
Model)
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.
Primary Air Inlet
Holes (Shape of
Holes May Vary
by Model)
Wealsorecommendthatyoukeeptheburner
tube and pilot assembly clean and free of
dustanddirt.Tocleanthesepartswerecom-
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 coulddamage the pilot
assembly.
Figure 24 - Injector Holder On Outlet
Burner Tube
Ports/Slots
Burner
Tube
Pilot
Assembly
1. Shut off the unit, including the pilot.
Allow the unit to cool for at least thirty
minutes.
Pilot Air
Inlet Hole
2. Inspect burner, pilot, and primary air
inlet holes on injector holder for dust
and dirt (see Figure 24).
3. Blow air through the ports/slots and
holes in the burner.
Figure 25 - Pilot Inlet Air Hole
105273
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OWNER’S MANUAL
TROUBLESHOOTING
Note: For additional help, visit DESA
International’stechnicalservicewebsite
WARNING: Turn off heater
CAUTION: Never use a wire,
needle, or similar object to clean
ODS/pilot.ThiscandamageODS/
pilot unit.
andletcoolbeforeservicing.Only
aqualifiedservicepersonshould
service and repair heater.
Note:Alltroubleshootingitemsarelistedin
order of operation.
OBSERVED PROBLEM
POSSIBLE CAUSE
REMEDY
When ignitor button is pressed, there is no
spark at ODS/pilot
1. Ignitor electrode not connected to igni- 1. Reconnect ignitor cable
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. Broken ignitor cable
4. Replace ignitor cable
5. Bad piezo ignitor
5. Replace piezo ignitor
6. Ignitor electrode broken
7. Ignitor electrode positioned wrong
6. Replace piezo ignitor
7. Replace piezo ignitor
When ignitor button is pressed, there is
spark at ODS/pilot but no ignition
1. Gas supply turned off or manual shutoff 1. Turn on gas supply or open manual
valve closed
shutoff valve
2. Control knob not in PILOT position
2. Turn control knob to PILOT position
3. Control knob not pressed in while in 3. Press in control knob while in PILOT
PILOT position
position
4. Air in gas lines when installed
4. Continue holding down control knob.
Repeat igniting operation until air is
removed
5. ODS/pilot is clogged
5. Clean ODS/pilot (see Cleaning and
Maintenance, page 18) or replace ODS/
pilot assembly
6. Gas regulator setting is not correct
1. Control knob not fully pressed in
6. Replace gas control
ODS/pilot lights but flame goes out when
control knob is released
1. Press in control knob fully
2. Control knob not pressed in long enough 2. After ODS/pilot lights, keep control
knob pressed in 30 seconds
3. Manual shutoff valve not fully open
3. Fully open manual shut-off valve
4. Pilot flame not touching thermocouple, 4. A) Contact local natural gas company
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 OD S/pilot
5. Thermocouple connection loose at con- 5. Hand tighten until snug, then tighten
trol valve
1/4 turn more
6. Thermocouple damaged
6. Replace thermocouple
7. Control valve damaged
7. Replace control valve
Continued
105273
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VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
POSSIBLE CAUSE
REMEDY
Burner does not light after ODS/pilot is lit
1. Burner orifice clogged
1. Clean burner (see Cleaning and Mainte-
nance, page 18) or replace burner orifice
2. Contact local natural gas company
3. Replace burner orifice
2. Inlet gas pressure is too low
3. Burner orifice diameter is too small
4. Thermopile leads disconnected or im- 4. Reconnect leads (see Wiring Diagram,
properly connected page 24)
5. Burners will not come on in remote po- 5. Replace battery in transmitter and re-
sition
ceiver
Delayed ignition burner
1. Manifold pressure is too low
2. Burner orifice clogged
1. Contact local natural gas company
2. Clean burner (see Cleaning and Mainte-
nance, page 18) or replace burner orifice
Burner backfiring during combustion
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 control
Slightsmokeorodorduringinitialoperation 1. Not enough air
1. Check burner for dirt and debris. If
found, clean burner (see Cleaning and
Maintenance, page 18)
2. Gas regulator defective
2. Replace gas control
3. Residues from manufacturing processes 3. Problem will stop after a few hours of
and logs curing
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
burner is lit
when burner is cold
2. Air in gas line
let warm up for a minute
2. Operate burner until air is removed from
line. Have gas line checked by local
natural gas company
3. Air passageways on heater blocked
3. Observe minimum installation clear-
ances (see pages 7 through 9)
4. Dirty or partially clogged burner orifice 4. Clean burner (see Cleaning and Mainte-
nance, page 18) or replace burner orifice
Whitepowderresidueformingwithinburner 1. When heated, vapors from furniture pol- 1. Turn heater off when using furniture
box or on adjacent walls or furniture
ish, wax, carpet cleaners, etc. turn into
white powder residue
polish, wax, carpet cleaners, or similar
products
Remote does not function
1. Battery is not installed. Battery power 1. Replace 9-volt batteries in receiver and
is low remote control
105273
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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.
• Immediately call your gas supplier from a neighbor’s phone.
Follow the gas supplier’s instructions.
• Ifyoucannotreachyourgassupplier,callthefiredepartment.
IMPORTANT: Operating heater where impurities in air exist may create odors.
Cleaningsupplies,paint,paintremover,cigarettesmoke,cementsandglues,new
carpet or textiles, etc., create fumes. These fumes may mix with combustion air
and create odors. These odors will disappear over time.
POSSIBLE CAUSE
OBSERVED PROBLEM
REMEDY
1. Metal expanding while heating or con-
tracting while cooling
Heater produces a clicking/ticking noise
just after burner is lit or shut off
1. This is common with most heaters. If
noise is excessive, contact qualified ser-
vice person
1. Heater burning vapors from paint, hair
spray, glues, cleaners, chemicals, new
carpet, etc. (See IMPORTANT state-
ment above)
Heater produces unwanted odors
1. Open window and ventilate room. Stop
using odor causing products while heater
is running
2. Gas leak. SeeWarning statement at
top of page
2. Locate and correct all leaks (see Check-
ing Gas Connections, page 13)
1. Not enough fresh air is available
2. Low line pressure
3. ODS/pilot is partially clogged
Heater shuts off in use (ODS operates)
1. Open window and/or door for ventilation
2. Contact local natural gas company
3. Clean ODS/pilot (see Cleaning and
Maintenance, page 18)
1. Gas leak. SeeWarning statement at
top of page
2. Control valve defective
Gas odor even when control knob is in OFF
position
1. Locate and correct all leaks (see Check-
ing Gas Connections, page 13)
2. Replace control valve
1. Foreign matter between control valve
and burner
Gas odor during combustion
1. Take apart gas tubing and remove for-
eign matter
2. Gas leak. SeeWarning statement at
top of page
2. Locate and correct all leaks (see Check-
ing Gas Connections, page 13)
105273
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VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
ILLUSTRATED
PARTS
BREAKDOWN
FLAME-MAX® GOLDEN OAK
LOG MODELS VYD18NRA,
VYD24NRA, VYD30NRA, AND
VYD36NR
1
*Note: The Golden Oak Log (104254-01)
for the VYD36NR model differs slightly
from the log shown.
2
23
3
6
7
4
9
8
5
23
10
24
12
11
13
25
I
H
18
L
O
O
F
14
F
N
O
T
I P
O
L
17
13
22
15
16
19
26
19
20
I
H
L
O
O
F
N
F
O
L I P
T
O
13
21
22
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105273
OWNER’S MANUAL
This list contains replaceable parts used in your heater. When ordering parts, follow the
instructions listed under Replacement Parts on page 24 of this manual.
PARTS LIST
VYD18NRA, VYD24NRA,
VYD30NRA, AND VYD36NR
KEY
NO.
PART NUMBER FOR
VYD18NRA
VYD24NRA
VYD30NRA
VYD36NR
DESCRIPTION
QTY.
1
2
3
4
5
6
7
8
9
10
105268-01
103779-01
098249-01
104422-01
098264-02
102843-01
099056-26
–
105268-02
103779-01
098249-01
103342-01
098264-02
102843-01
099056-16
102966-01
102772-01
099387-12
105268-03
103779-01
098249-01
103342-01
098264-02
102843-01
099056-16
102966-01
102772-01
099387-12
104254-01
103779-01
098249-01
103342-01
098264-02
102843-01
099056-16
102966-01
102772-01
099387-12
Log, Golden Oak
ODS Pilot (NG)
ODS Nut
Burner Outlet Tube
Male Connector
Burner Clip
Burner Orifice Injector
Upper Bracket
Burner
1
1
2
1
1
1
1
1
1
102980-01
099387-15
Pilot Tube
(Valve to regulator)
Gas Control Valve
Lower Bracket
Screw, #8 x .38
Painted Base Assy
Ignitor Cable
Piezo Ignitor
Plate, Switch
Heat Shield
Screw
1
1
1
7
1
1
1
1
1
2
1
1
11
12
13
14
15
16
17
18
19
20
21
22
103781-01
103345-02
M11084-38
104384-01
098271-07
102445-01
103587-02
104099-01
098304-01
103784-02
103784-01
M12461-26
103781-01
103345-01
M11084-38
102775-06CK
098271-07
102445-01
103587-02
104099-01
098304-01
103784-02
103784-01
M12461-26
103781-01
103345-01
M11084-38
102775-08CK
098271-07
102445-01
103587-02
104099-01
098304-01
103784-02
103784-01
M12461-26
103781-01
103345-01
M11084-38
102775-08CK
098271-07
102445-01
103587-02
104099-01
098304-01
103784-02
103784-01
M12461-26
Flame Adjustment Knob
Off-Pilot-On Knob
Screw, Hex Slt Wsr
10-32 x .38
4
23
100609-01
100609-01
100609-01
100609-01
Pilot Tube
(Regulator to Pilot)
Pilot Regulator
Wiring Harness
Switch
1
1
1
1
24
25
26
099918-02
103284-02
099998-01
099918-02
103284-02
099998-01
099918-02
103284-02
099998-01
099918-02
103284-02
099998-01
PARTS AVAILABLE — NOT SHOWN
100563-01
103877-01
100563-01
103877-01
100563-01
103877-01
100563-01
103877-01
Warning Plate
Lighting Instructions
Plate
Warning Plate Fastener
Caution Decal
Hardware Kit
1
1
1
1
1
1
1
100565-01
100693-01
101137-02
104310-01
GA6060
100565-01
100639-01
101137-02
104310-08
GA6060
100565-01
100639-01
101137-02
104310-08
GA6060
100565-01
100639-01
101137-02
104310-08
GA6060
Information Video
Lava Rock
105273
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VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
WIRING DIAGRAM
Note: For proper operation of optional ac-
cessories, the wires from the switch to the
controlmustbeconnectedexactlyasshown.
REPLACEMENT
PARTS
Note: Use only original replacement parts.
Thiswillprotectyourwarrantycoveragefor
parts replaced under warranty.
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 calling DESA In-
ternational, have ready
AUT
O
OFF
ON
• your name and address
• model and serial numbers of your heater
• how heater was malfunctioning
• type of gas used (propane or natural gas)
• purchase date
Thermopile
Usually, we will ask you to return the defec-
tive part to the factory.
SPECIFICATIONS
PARTS NOT UNDER
WARRANTY
Golden Oak
Golden Oak
24", 30", and 36"
Remote Ready
18" Remote
Ready
Contact authorized dealers of this product.
If they can’t supply original replacement
part(s), call DESA International’s Parts
Department at 1-800-972-7879 for referral
information. When calling DESA Interna-
tional, have ready
Btu (Variable)
Type Gas
Ignition
16,000/30,000
Natural Gas Only
Piezo
20,000/39,000
Natural Gas Only
Piezo
Pressure Manifold
Inlet Gas Pressure (in. of water)
Maximum
3.5" W.C.
3.5" W.C.
• model number of your heater
• the replacement part number
10.5"
5"
10.5"
5"
Minimum*
Shipping Weight
28 lbs.
30 lbs. (24")/32 lbs. (30")
34 lbs. (36")
* For input adjustment
SERVICE HINTS
TECHNICAL
SERVICE
When Gas Pressure Is Too Low
• pilot will not stay lit
You may have further questions about in-
stallation, operation, or troubleshooting.
• burners will have delayed ignition
• heater will not produce specified heat
If so, contact DESA International’s Techni-
calServiceDepartmentat1-800-DESALOG
(1-800-337-2564).
When Gas Quality Is Bad
• pilot will not stay lit
You can also visit DESA International’s
technical services web site at
• burners will produce flames and soot
• heater will backfire when lit
Youmayfeelyourgaspressureistoolowor
gas quality is bad. If so, contact your local
natural gas supplier.
105273
24
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OWNER’S MANUAL
WALL-MOUNT THERMOSTAT
SWITCH - GWMT1
(Not Shown)
HI
ACCESSORIES
TEMP
MAN
LO
AU
T
O
ON
Purchasetheseheateraccessoriesfromyour
local dealer. If they can not supply these
accessories,callDESAInternational’sParts
Department at 1-800-972-7879 for referral
information. You can also write to the ad-
dress listed on the back page of this manual.
OFF
ST
A
TUS
For all models. The desired comfort setting
can be selected on the wall thermostat and
the log heater will automatically cycle from
pilot to the heat setting selected.
RECEIVER AND HAND-HELD
THERMOSTAT REMOTE
CONTROL KIT - GHRCT
WALL-MOUNT ON/OFF
SWITCH - GWMS2
(Not Shown)
For all models. Allows the gas log heater to
be operated in a manually or thermostati-
cally controlled mode. You can turn the gas
log heater on and off without ever leaving
the comfort of your easy chair.
For all models. Allows the gas log heater to
be turned on and off with a wall switch.
DAMPER CLAMP - GA6080
(Not Shown)
Permanently opens chimney flue damper
for vented operation. Can be used only with
non-thermostat accessories.
LAVA ROCK - GA6060
(Not Shown)
MANUAL SHUTOFF VALVE -
GA5010
For all models. Order when additional rock
is desired. (3 lb. bag)
Forallmodels.Manualshutoffvalvewith1/8"
NPT tap. Fits 1/2" NPT pipe.
RECEIVER AND HAND-
HELD REMOTE CONTROL
KIT - GHRC
Forallmodels.Allowsthegaslogheaterto
be turned on and off by using a hand-held
remote control.
FIREPLACE HOOD
Black - GA6050
Brass - GA6052
Antique Brass - GA6053
For all models. Helps deflect heat away
from mantel or wall above fireplace. Fits
openings 28" to 48" wide.
105273
25
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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
VENT-FREE NATURAL GAS LOG HEATERS
DESA International warrants this product to be free from defects in materials and components for four (4) years from the date of first
purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions.
To make a claim under this warranty the Bill of Sale or cancelled check must be presented.
This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s) required to restore this heater
toproperoperatingconditionandanallowanceforlaborwhenprovidedbyaDESAAuthorizedServiceCenter. Warrantypart(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 inaccordance
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.
TOTHEFULLEXTENTALLOWEDBYTHELAWOFTHEJURISDICTIONTHATGOVERNSTHESALEOFTHEPRODUCT;
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
FOR A PARTICULAR PURPOSE TO FOUR (4) YEARS ON ALL COMPONENTS FROM THE DATE OF FIRST PURCHASE;
AND DESA INTERNATIONAL’S LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND
DESA INTERNATIONAL SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES.
Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of incidental or consequential
damages, so the above limitation on implied warranties, or exclusion or limitation on damages may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights that vary from state to state.
For information about this warranty write:
INTERNATIONAL
2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004
105273 01
105273-01
Rev. C
09/99
NOT A UPC
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