FMI Heat Majic FVF18P Quick start guide

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UNVENTED (VENT-FREE)
PROPANE/LP GAS LOG HEATER
ALSO DESIGN-CERTIFIED AS A VENTED DECORATIVE APPLIANCE
OWNER’S OPERATION AND INSTALLATION MANUAL
18", 24" and 30" Variable
Manually-Controlled Models Patent Pending
Heat Majic™
Models FVF18P,
FVF24P, and
FVF30P
WARNING: If the information in this manual is
not followed exactly, a fire or explosion may
result causing property damage, personal in-
jury, or loss of life.
— Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do
not use any phone in your building.
• Immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions.
• If you cannot reach your gas supplier,
call the fire department.
— Installation and service must be per-
formed by a qualified installer, service
agency, or the gas supplier.
WARNING: Improper installation, adjust-
ment, alteration, service, or maintenance
can cause injury or property damage.
Refer to this manual for correct installa-
tion and operational procedures. For as-
sistance or additional information con-
sult a qualified installer, service agency,
or the gas supplier.
WARNING: This appliance is for installa-
tion only in a solid-fuel burning masonry
or UL127 factory-built fireplace, or in an
approved ventless firebox. It is design
certified for these installations in accor-
dance with ANSI Z21.11.2. Exception: Do
notinstallthisapplianceinafactory-built
fireplace that includes instructions stat-
ingithasnotbeentestedorshouldnotbe
used with unvented gas logs.
WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in which
itisinstalled.Provisionsforadequatecombustionandventilationairmustbeprovided.Refer
to Air for Combustion and Ventilation section on page 4 of this manual.
This appliance may be installed in an aftermarket*, permanently located, manufactured (mo-
bile) home, where not prohibited by local codes.
This appliance is only for use with the type of gas indicated on the rating plate. This
appliance is not convertible for use with other gases.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer

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105192
UNVENTED PROPANE/LP GAS LOG HEATER
SAFETY
INFORMATION
DANGER: Carbon monoxide
poisoning may lead to death!
WARNING ICON G 001
WARNINGS
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, oper-
ate, or service this heater. Im-
proper use of this heater can
causeseriousinjuryordeathfrom
burns, fire, explosion, electrical
shock, and carbon monoxide
poisoning.
WARNING:Anychangetothis
heater or its controls can be
dangerous.
1. This appliance is only for use with the
typeof gas indicatedon the rating plate.
Thisappliance is not convertiblefor use
with other gases.
2. Donot place propane/LP supplytank(s)
insideanystructure. Locate propane/LP
supply tank(s) outdoors.
3. To prevent performance problems, the
use of a propane/LP tank of less than
100 lbs. capacity is not recommended.
4. If you smell gas
• shut off gas supply
• do not try to light any appliance
• do not touch any electrical switch; do
not use any phone in your building
• immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions
• ifyou cannot reachyour gas supplier,
call the fire department
5. This heater shall not be installed in a
bedroom or bathroom unless installed
as a vented appliance (see Installing
Damper Clamp Accessory for Vented
Operation, page 10).
6. Never install the heater
• in a recreational vehicle
• wherecurtains, furniture, clothing, or
otherflammable objects are less than
42inches from the front, top, or sides
of the heater
• in high traffic areas
• in windy or drafty areas
7. Before installing in a solid fuel burn-
ingfireplace, the chimney flue and fire-
box must be cleaned of soot, creosote,
ashes and loose paint by a qualified
chimney cleaner. Creosote will ignite
if highly heated. Inspect chimney flue
for damage. If damaged, operate heater
with flue damper closed.
8. If fireplace has glass doors, never op-
eratethisheater with glass doors closed.
Ifyou operate heater with doors closed,
heat buildup inside fireplace will cause
glass to burst. Also if fireplace open-
ing has vents at the bottom, you must
open the vents before operating heater.
9. This log heater isdesigned to be smoke-
less. If logs ever appear to smoke, turn
off heater and call a qualified service
person. Note: During initial operation,
slight smoking could occur due to log
curing and heater burning manufactur-
ing residues.
10. To prevent the creation of soot, follow
the instructions in Cleaning and Main-
tenance, page 20.
11. Beforeusingfurniture polish, wax, car-
pet cleaner, or similar products, turn
heater off. If heated, the vapors from
theseproducts may create a white pow-
der residue within burner box or on
adjacent walls or furniture.
CarbonMonoxidePoisoning:Earlysignsof
carbon monoxide poisoning resemble the flu,
with headaches, dizziness, or nausea. If you
have these signs, the heater may not be work-
ing properly. Get fresh air at once! Have
heater serviced. Some people are more af-
fectedbycarbonmonoxidethanothers.These
includepregnantwomen,peoplewithheartor
lung disease or anemia, those under the influ-
ence of alcohol, and those at high altitudes.
Propane/LP Gas: Propane/LP gas is odor-
less. An odor-making agent is added to the
gas. The odor helps you detect a gas leak.
However, the odor added to the gas can
fade. Gas may be present even though no
odor exists.
Make certain you read and understand all
warnings.Keepthismanualforreference.It
isyourguidetosafeandproperoperationof
this heater.
WARNING: Do not allow fans
to blow directly into the stove.
Avoidanydraftsthatalterburner
flame patterns. Ceiling fans can
create drafts that alter burner
flame patterns. Altered burner
patterns can cause sooting.
WARNING: Do not use a
blower insert, heat exchanger
insert or other accessory not ap-
proved for use with this heater.
Due to high temperatures, the
appliance should be located out
oftraffic and away from furniture
and draperies.
Do not place clothing or other
flammable material on or near
the appliance. Never place any
objects on the heater.
Heater base assembly becomes
very hot when running heater.
Keep children and adults away
from hot surface to avoid burns
or clothing ignition. Heater will
remain hot for a time after shut-
down. Allow surface to cool be-
fore touching.
Carefully supervise young chil-
dren when they are in the room
with heater.
Keeptheapplianceareaclearand
free from combustible materials,
gasoline, and other flammable
vapors and liquids.
Youmustoperatethisheaterwith
a fireplace screen in place. Make
sure fireplace screen is closed
before running heater.

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105192
OWNER’S MANUAL
LOCAL CODES
Install and use heater with care. Follow all
localcodes.Intheabsenceoflocalcodes,use
the latest edition of The National Fuel Gas
Code ANSI Z223.1/NFPA 54*.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
PRODUCT
FEATURES
OPERATION
This heater is clean burning. It requires no
outside venting. There is no heat loss out a
vent or up a chimney. Heat is generated by
realistic,dancingyellowflames.Thisheater
isdesignedforvent-freeoperationwithflue
damper closed. It has been tested and ap-
proved to ANSI Z21.11.2 standard for
unvented heaters. State and local codes in
some areas prohibit the use of vent-free
heaters.Thisheatermayalsobeoperatedas
aventeddecorative(ANSIZ21.60)product
by opening the flue damper.
SAFETY PILOT
This heater has a pilot with an Oxygen
Depletion Sensing (ODS) safety shutoff
system. The ODS/pilot is a required feature
for vent-free room heaters. The ODS/pilot
shuts off the heater if there is not enough
fresh air.
PIEZO IGNITION SYSTEM
This heater has a piezo ignitor. This system
requires no matches, batteries, or other
sources to light heater.
UNPACKING
PRODUCT IDENTIFICATION
Figure 1 - Heat Majic™Log Set
Base Assembly
Piezo Ignitor
Burner
One-Piece
Log Set
Control Knob
CAUTION: Do not remove the
data plates from the grate assem-
bly.Thedataplatescontainimpor-
tant product information.
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.
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.
SAFETY
INFORMATION
Continued
12. This heaterneeds fresh, outsideair ven-
tilation to run properly.This heater has
an oxygen depletion sensor (ODS) pi-
lot light safety system. The ODS shuts
down the heater if not enough fresh air
is available. See Air for Combustion
and Ventilation, pages 4 through 6. If
heater keeps shutting off, see Trouble-
shooting, pages 17 through 19.
13. Do not run heater
• where flammable liquids or vapors
are used or stored
• under dusty conditions
14. Do not use this heater to cook food or
burn paper or other objects.
15. Do not use heater if any part has been
exposedto or underwater.Immediately
call a qualified service technician to in-
specttheroom heater and toreplace any
part of the control system and any gas
control which has been under water.
16. Do not operate heater if any log is bro-
ken. Do not operate heater if a log is
chipped (dime-sized or larger).
17. Turn heater off and let cool before ser-
vicing. Only a qualified service person
should service and repair heater.
18. Operating heater above elevations of
4,500 feet could cause pilot outage.
19. Provide adequate clearances around air
openings.

4
105192
UNVENTED PROPANE/LP GAS LOG HEATER
AIR FOR
COMBUSTION AND
VENTILATION
PROVIDING ADEQUATE
VENTILATION
The following are excerpts from Na-
tional Fuel Gas Code, ANSI Z223.1/
NFPA 54, Section 5.3, Air for Combus-
tion and Ventilation.
Allspacesinhomesfallintooneofthethree
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.
Unusually Tight Construction
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.
Unusually tight construction is de-
fined as construction where:
a. walls and ceilings exposed to the
outside atmosphere have a con-
tinuous water vapor retarder with
a rating of one perm (6 x 10-11 kg
per pa-sec-m2) or less with open-
ings gasketed or sealed and
b. weather stripping has been
added on openable windows and
doors and
c. caulking or sealants are applied
to areas such as joints around
window and door frames, be-
tween sole plates and floors,be-
tween wall-ceiling joints, be-
tween wall panels, at penetra-
tionsforplumbing,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.
Confined and Unconfined Space
TheNational FuelGasCodeANSI Z223.1/
NFPA 54 defines a confined space as a
space whose volume is less than 50 cubic
feet per 1,000 Btu per hour (4.8 m3per kw)
of the aggregate input rating of all appli-
ances installed in that space and an uncon-
fined space as a space whose volume is not
less than 50 cubic feet per 1,000 Btu per
hour (4.8 m3per kw) of the aggregate input
rating of all appliances installed in that
space.Roomscommunicatingdirectlywith
the space in which the appliances are in-
stalled*, through openings not furnished
with doors, are considered a part of the
unconfined space.
*Adjoiningroomsarecommunicatingonly
iftherearedoorlesspassagewaysorventila-
tion grills between them.
Today’s homes are built more energy effi-
cient than ever. New materials, increased
insulation, and new construction methods
helpreduceheatlossinhomes.Homeowners
weatherstripandcaulkaroundwindowsand
doorstokeepthecoldairoutandthewarmair
in. During heating months, home owners
want their homes as airtight as possible.
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.
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.
WARNING: This heater shall
not be installed in a confined
space or unusually tight con-
struction unless provisions are
provided for adequate combus-
tion and ventilation air. Read
the following instructions to in-
sure proper fresh air for this
and other fuel-burning appli-
ances in your home.

5
105192
OWNER’S MANUAL
AIR FOR COMBUSTION
AND VENTILATION
Continued
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. Multiply the space volume by 20 to determine the maximum Btu/Hr the space can support.
_______________ (volume of space) x 20 = (maximum Btu/Hr the space can support)
Example: 2560 cu. ft. (volume of space) x 20 = 51,200 (maximum Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in the space.
Vent-free heater _______________ Btu/Hr
Gas water heater* _______________ Btu/Hr
Gas furnace _______________ Btu/Hr
Vented gas heater _______________ Btu/Hr
Gas fireplace logs _______________ Btu/Hr
Other gas appliances* +_______________ Btu/Hr
Total =_______________ Btu/Hr
* Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors and vents to the outdoors.
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)
71,500 Btu/Hr (actual amount of Btu/Hr used)
ThespaceintheaboveexampleisaconfinedspacebecausetheactualBtu/HrusedismorethanthemaximumBtu/Hrthespacecansupport.
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.
Example:
Gas water heater 40,000 Btu/Hr
Vent-free heater +31,500 Btu/Hr
Total =71,500 Btu/Hr
WARNING:Iftheareainwhichtheheatermaybeoperatedissmallerthanthatdefinedasanunconfinedspace
or if the building is of unusually tight construction, provide adequate combustion and ventilation air by one of
themethodsdescribedinthe NationalFuelGasCode,ANSIZ223.1/NFPA54,Section5.3 orapplicablelocalcodes.

6
105192
UNVENTED PROPANE/LP GAS LOG HEATER
AIR FOR
COMBUSTION AND
VENTILATION
Continued
VENTILATION AIR
Ventilation Air From Inside
Building
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
(seeoptions1and2,Figure2).Youcanalso
remove door into adjoining room (see op-
tion 3, Figure 2). Follow the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Section
5.3, Air for Combustion and Ventilation for
required size of ventilation grills or ducts.
Ventilation Air From Outdoors
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.
Connecttheseitemsdirectlytotheoutdoors
orspacesopentotheoutdoors.Thesespaces
include attics and crawl spaces. Follow the
National Fuel Gas Code, ANSI Z223.1/
NFPA 54, Section 5.3, Air for Combustion
and Ventilation for required size of ventila-
tion grills or ducts.
IMPORTANT: Donotprovideopenings for
inlet or outlet air into attic if attic has a
thermostat-controlledpowervent.Heatedair
enteringtheatticwillactivatethepowervent.
Figure 3 - Ventilation Air from Outdoors
Figure 2 - Ventilation Air from Inside Building
Outlet
Air Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilation
Grills
Into Adjoining
Room,
Option 1
12"
12"

7
105192
OWNER’S MANUAL
LOG SIZING REQUIREMENTS
Log Minimum Firebox
Size Height Depth Front Rear*
Width Width
18" 17" 14" 24" 20"
24" 17" 14" 28" 21"
30" 17" 14" 34" 24"
INSTALLATION AND
CLEARANCES (Vent-Free
Operation Only)
WARNING:Maintainthemini-
mum clearances. If you can, pro-
vide greater clearances from
floor, ceiling, and adjoining wall.
MINIMUM FIREPLACE
CLEARANCE TO
COMBUSTIBLE MATERIALS
Log Size Side Wall Ceiling
18", 24", 16" 42"
and 30"
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
•in high traffic areas
•in windy or drafty areas
INSTALLATION
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.
CHECK GAS TYPE
Useonlypropane/LPgas.Ifyourgassupply
isnotpropane/LP,donotinstallheater.Call
dealer where you bought heater for proper
type heater.
*Measured at 14” depth
Continued
WARNING: A qualified ser-
vice person must install heater.
Follow all local codes.
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
willigniteifhighlyheated.Adirty
chimneyflueandfireboxmaycre-
ateand distribute soot within the
house. Inspect chimney flue for
damage. If damaged, operate
heater with flue damper closed.
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.
NOTICE:Stateorlocalcodesmay
onlyallowoperationofthisappli-
ance in a vented configuration.
Check your state or local codes.
NOTICE: This heater is intended
for use as supplemental heat.
Use this heater along with your
primary heating system. Do not
install this heater as your pri-
mary heat source. If you have a
central heating system, you may
run system’s circulating blower
whileusing heater. This will help
circulatetheheatthroughoutthe
house. In the event of a power
outage, you can use this heater
as your primary heat source. 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, but
not limited to, tobacco smoke,
aromatic candles, cleaning flu-
ids,oilorkerosenelamps,etc.)in
the air exist, may discolor walls
or cause odors.
Carefullyfollowtheinstructionsbelow.This
will ensure safe installation into a masonry,
factory built UL127-listed manufactured
fireplace, or listed vent-free firebox.
Minimum Clearances For Side
Combustible Material, Side Wall,
and Ceiling
A. Clearances from the side of thefireplace
cabinetto any combustible materialand
wall should follow diagram in Figure 4.
Example: The face of a mantel, book-
shelf, etc. is made of combustible ma-
terialand protrudes 3 1/2"from the wall.
This combustible material must be 4"
from the side of the fireplace cabinet
(see Figure 4).
Note: Wheninstallingyourgaslogsinto
a manufactured firebox, follow firebox
manufacturer’sinstructionsforminimum
clearances to combustible materials.
B. Clearancesfrom the top of thefireplace
openingto the ceiling shouldnot be less
than 42 inches.
Figure 4 - Minimum Clearance for
Combustible to Wall
*Minimum 16 inches from Side Wall
Example

8
105192
UNVENTED PROPANE/LP GAS LOG HEATER
INSTALLATION
Continued
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
Heat Resistant
Material (A)
Minimum Noncombustible
Material Clearances
If Not Using Mantel
Note: Ifusing a mantel, proceed to If Using
a Mantel. If not using a mantel, follow the
information below.
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
sheetmetal,youmusthavenoncombustible
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.
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.
Noncombustible Requirements for
Material Distance (A) Safe Installation
12" or more Noncombustible material OK.
Between 8" and 12" 24"or 30" Models:Install fireplace hoodaccessory
(GA6050, GA6052, or GA6053, see
Accessories,
page 21).
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.
NOTICE: Manual control heaters
maybeusedasaventedproduct.
Ifso, youmustalways 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.
If Using Mantel
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
sheetmetal,youmusthavenoncombustible
material behind it. Noncombustible mate-
rial must extend at least 8 inches up (for all
models). If noncombustible material is less
than12",youmustinstallthefireplacehood
accessory (24" and 30" models only). Even
if noncombustible material is more than
12", you may need the hood accessory to
deflect heat away from your mantel shelf.
See Figure 5 and Figures 6 and 7 on page 9
for minimum clearances.
IMPORTANT: If you cannot meet these
minimum clearances, you must operate
heater with chimney flue damper open. Go
to Installing Damper Clamp Accessory for
Vented Operation, page 10.

9
105192
OWNER’S MANUAL
Figure 7 - Minimum Mantel Clearances When Using Hood
Minimum Non-
Combustible
Material 8"
Min. 12" 15" 18"
All minimum
distances are
in inches
20"
2
1/2
"
6"
8"
10"
12"
Distances to
Underside of
Mantel
Hood
(HDABK, HDABR)
Top of Fireplace
Opening
Underside of
Mantel Shelf
Mantel Shelf
INSTALLATION
Continued
Figure 6 - Minimum Mantel Clearances Without Using Hood
Minimum Non-
Combustible
Material
Minimum Non-
Combustible
Material Height
Distances to
Underside of
Mantel
Top of Fireplace
Opening
Underside of
Mantel Shelf
Mantel Shelf
12"
8"
(A)
18"
8"
20"
14"
22"
17"
24"
20"
All minimum
distances are
in inches
Log Set
24"/30" Models
18" Model
2
1/2
"
6"
8"
10"
Figure8-MinimumFireplaceClearances
If Installed at Floor Level
Figure9-MinimumFireplaceClearances
Above Combustible Flooring
14"
Min.
Combus
t
Material
Non-Combustible
M
Hearth
5"
Min.
Combustible
Material
Combustible
Material
Noncombustible
Material
Hearth Combustible
Material
5”
Min.
Continued
MANTEL CLEARANCES
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.
Determining Minimum Mantel
Clearance
If you meet minimum clearance between
mantel shelf and top of fireplace opening, a
hood is not required (see Figure 6).
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
hoodtherearestillcertain minimum mantel
clearancesrequired.Followminimumclear-
ances shown in Figure 7 when using hood.
NOTICE:If yourinstallation 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
FLOOR CLEARANCES
A. If installing appliance onthe 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
applianceat least 5" above the combus-
tible flooring (see Figure 9).
NOTICE:Surfacetemperaturesof
adjacent walls and mantels be-
comehotduringoperation.Walls
and mantels above the firebox
may become hot to the touch. If
installedproperly,thesetempera-
turesmeettherequirementofthe
national product standard. Fol-
low all minimum clearances
shown in this manual.

10
105192
UNVENTED PROPANE/LP GAS LOG HEATER
INSTALLATION
Continued
INSTALLING DAMPER
CLAMP ACCESSORY FOR
VENTED OPERATION
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.
Youmayusethisheaterasaventedproduct.
There are three reasons for operating your
heater in the vented mode:
1. The fireplace does not meet the clear-
ance to combustibles requirements for
vent-free operation
2. State or local codes do not permit vent-
free operation
3. You prefer vented operation
Ifreasonsnumber1or2aboveapplytoyou,
you must permanently open chimney flue
damper.Youmustinstallthedamperclamp
accessory (to order, see Accessories, page
21). This will insure vented operation (see
Figure 10). The damper clamp will keep
damper open. Installation instructions are
included with clamp accessory.
Area of Various Standard
Round Flues
Diameter (ins.) Area (sq. ins.)
5" 20 sq. inches
6" 29 sq. inches
7" 39 sq. inches
8" 51 sq. inches
Chimney Minimum Permanent
Height (ft.) Flue Opening (sq. ins.)
6' to 15' 39 sq. inches
15' to 30' 29 sq. inches
Figure 10 - Attaching Damper Clamp
INSTALLING HEATER BASE
ASSEMBLY
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.Makesurematerialissecure.
CAUTION: Do not pick up
heater base assembly by the
burner. This could damage
heater.Only handle base assem-
bly by grates.
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: Makesuretheheaterburner
is level. If heater is not level, heater will not
work properly.
See chart below for minimum permanent
flue opening you must provide. Attach
damper clamp so the minimum permanent
flueopeningwillbemaintainedatalltimes.
Damper
Damper
Clamp
Damper
Clamp Damper
Damper
Masonry Fireplace Manufactured Fireplace
CAUTION: Do notremovethe
dataplatesattachedtotheheater
base assembly. The data plates
contain important warranty and
safety information.

11
105192
OWNER’S MANUAL
Masonry Screw
Figure 12 - Attaching Base Assembly to Fireplace Floor
Bracket with
Screw Holes
INSTALLATION
Continued
Heater Gas
Regulator
Flexible Gas Hose
(if allowed by local
codes)
Figure 11 - Attaching Flexible Gas Hose to Heater Gas Regulator
Fitting
Continued
Installation Items Needed
• hardwarepackage (provided with heater)
• approvedflexiblegas hose (not provided)
(if allowed by local codes)
• sealant (resistant to propane/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).
IMPORTANT: Hold gas regulator with
wrenchwhenconnectingflexiblegashose.
2. Locate two masonry screws in hard-
ware package.
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.
9. Drill holes at marked locations using
3/16" drill bit.
10. Attach base assembly to fireplace floor
usingtwo masonry screws (inhardware
package).
11. Connect to gas supply. See Connect-
ing To Gas Supply, page 12.
12. Replace logs on heater base.

12
105192
UNVENTED PROPANE/LP GAS LOG HEATER
INSTALLATION
Continued
Tee Joint
Pipe
Nipple
Cap
3" Minimum
Sediment Trap
Gas
Regulator
From External
Regulator
(11" W.C.** to
14" W.C.
Pressure) CSA Design-Certified
Equipment Shutoff Valve
With 1/8" NPT Tap
Approved Flexible
Gas Hose (if allowed
by local codes)
Figure 14 - Gas Connection
* Minimum inlet pressure for purpose of input adjustment.
We recommend that you install a sediment
trap in supply line as shown in Figure 13.
Locate sediment trap where it is within
reach for cleaning. Install in piping system
betweenfuelsupplyandheater.Locatesedi-
menttrap 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:Usepipejointseal-
ant that is resistant to liquid pe-
troleum (LP) gas.
CAUTION: Avoid damage to
regulator.Holdgasregulatorwith
wrenchwhenconnectingittogas
piping and/or fittings.
CONNECTING TO GAS
SUPPLY
WARNING: A qualified ser-
viceperson mustconnect heater
to gas supply. Follow all local
codes.
CAUTION: Never connect
heaterdirectly tothe propane/LP
supply. This heater requires an
externalregulator(notsupplied).
Install the external regulator be-
tweentheheaterandpropane/LP
supply.
Installation Items Needed
Beforeinstallingheater,makesureyouhave
the items listed below.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
* ACSAdesign-certifiedequipmentshutoff
valve with 1/8" NPT tap is an acceptable
alternative to test gauge connection. Pur-
chase the optional CSA design-certified
equipment shutoff valve from your dealer.
See Accessories, page 21.
The installer must supply an external regu-
lator. The external regulator will reduce
incoming gas pressure. You must reduce
incominggaspressuretobetween11and14
inchesofwater.Ifyoudonotreduceincom-
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.
Figure 13 - External Regulator With Vent
Pointing Down
WARNING: Never connect
heater to private (non-utility) gas
wells. This gas is commonly
known as wellhead gas.
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
volume will occur.
Propane/LP
Supply Tank
External Regulator
Vent Pointing Down
Installationmustincludeaequipmentshutoff
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).
IMPORTANT: Install equipment shutoff
valve in an accessible location. The equip-
ment shutoff valve is for turning on or
shutting off the gas to the appliance.
Check your building codes for any special
requirementsforlocatingequipmentshutoff
valve to fireplaces.
ApplypipejointsealantlightlytomaleNPT
threads. This will prevent excess sealant
fromgoing into pipe. Excesssealant in pipe
could result in clogged heater valves.

13
105192
OWNER’S MANUAL
ON
POSITION
OFF
POSITION
INSTALLATION
Continued
Figure 15 - Equipment Shutoff Valve
Open
Closed
Equipment
Shutoff
Valve
Figure 16 - Checking Gas Joints
Control Valve
Location
Propane/LP
Supply Tank
Equipment
Shutoff
Valve
Pressure Testing Gas Supply
Piping System
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
1. Disconnect appliance with its appliance
maingasvalve(controlvalve)andequip-
ment shutoff valve from gas supply pip-
ing system. Pressures in excess of 1/2
psig will damage heater regulator.
2. Cap off open end of gas pipe where
equipmentshutoffvalvewasconnected.
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 a noncorrosive leak de-
tection fluid to gas joints. Bubbles
forming show a leak.
5. Correct all leaks at once.
6. Reconnect heater and equipment
shutoff valve to gas supply. Check re-
connected fittings for leaks
Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Fig-
ure 15).
2. Pressurize supply piping system by ei-
ther using compressed air or opening
propane/LP supply tank valve.
3. Check all joints from propane/LP sup-
plytankto equipment shutoffvalve(see
Figure 16). Apply a noncorrosive leak
detection fluid to gas joints. Bubbles
forming show a leak.
4. Correct all leaks at once.
Pressure Testing Heater Gas
Connections
1. Open equipment shutoffvalve(seeFig-
ure 15).
2. Open propane/LP supply tank valve.
3. Make sure control knob of heater is in
the OFF position.
4. Check all joints fromequipment shutoff
valve to control valve (see Figure 16).
Apply a noncorrosive leak detection
fluid to gas joints. Bubbles forming
show a leak.
5. Correct all leaks at once.
6. Light heater (see Operating Heater,
pages 15 and 16). Check all other in-
ternal joints for leaks.
7. Turn off heater (see To Turn Off Gas to
Appliance, page 16).
WARNING:Neveruseanopen
flame to check for a leak. Apply a
noncorrosive leak detection fluid
toalljoints.Bubblesformingshow
a leak. Correct all leaks at once.
WARNING: Test all gas pip-
ing and connections for leaks
after installing or servicing. Cor-
rect all leaks at once.
CAUTION: Make sure exter-
nal regulator has been installed
between propane/LP supply and
heater.Seeguidelinesunder Con-
necting to Gas Supply , page 12.
CHECKING GAS
CONNECTIONS
Continued

14
105192
UNVENTED PROPANE/LP GAS LOG HEATER
INSTALLATION
Continued
WARNING:Failuretoposition
thepartsinaccordancewiththese
diagrams or failure to use only
parts specifically approved with
thisheater may resultinproperty
damage or personal injury.
INSTALLING LOGS
Itisveryimportanttoinstallthelogsexactly
as instructed. Do not modify logs. Only use
logs supplied with heater.
1. Place one-piece log set on grate to fit
as illustrated in Figure 17. Make sure
bottom of front log is in front of “U”-
shaped cutout in center of chassis (see
Figure 17).
IMPORTANT: Make sure log does not
cover any burner ports.
2. Place lava rock on fireplace floor
around base of heater.
CAUTION: After installation
andperiodicallythereafter,check
to ensure that no flame comes in
contact with any log. With the
heaterset toHigh, checkto seeif
flames contact any log. If so, re-
position logs according to the
loginstallationinstructionsinthis
manual. Flames contacting logs
will create soot.
Figure 17 - Installing Heat Majic™One-
Piece Log Set
Figure 18 - Installing Heat Majic™One-
Piece Log Set (Top View)
One Piece
Log Set
Burner
Ports
One Piece
Log Set
Burner
"U"-shaped
Cutout in
Chassis
Chassis

15
105192
OWNER’S MANUAL
1. STOP! Read the safety information,
column 1.
2. Make sure equipment shutoff valve
is fully open.
3. Pressinandturncontrolknob clock-
wise
Clockwise
to the OFF position.
Figure 20 - Pilot
OPERATING
HEATER
FOR YOUR SAFETY
READ BEFORE
LIGHTING
WARNING: If you do not fol-
low these instructions exactly, a
fireorexplosionmayresultcaus-
ing property damage, personal
injury or loss of life.
A. Thisappliance has a pilot which must
belighted by hand.Whenlighting the
pilot,followthese instructionsexactly.
B. BEFORE LIGHTING smell all
aroundtheapplianceareafor gas.Be
suretosmellnext to thefloorbecause
some gas is heavier than air and will
settle on the floor.
WHAT TO DO IF YOU SMELL
GAS
• Do not try to light any appliance.
• Donottouchanyelectricswitch;do
notuse any phone in yourbuilding.
• Immediatelycall yourgassupplier
from a neighbor’s phone. Follow
the gas supplier’s instructions.
• If you cannot reach your gas sup-
plier, call the fire department.
C. Useonly yourhandtopush inorturn
thegas controlknob.Neverusetools.
If the knob will not push in or turn
by hand, don’t try to repair it, call a
qualified service technician or gas
supplier. Force or attempted repair
may result in a fire or explosion.
D. Do not use this appliance if any part
has been under water. Immediately
call a qualified service technician to
inspect the appliance and to replace
any part of the control system and
any gas control which has been un-
der water.
PILOT
OFF
LO
HI
Control Knob
Ignitor Button
Figure 19 - Control Knob and Ignitor Button Location
LIGHTING
INSTRUCTIONS
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.
NOTICE: During initial operation
of new heater, burning logs will
give off a paper-burning smell.
Open damper or window to vent
smell.Thiswillonlylastafewhours.
WARNING: Damper handle
will be hot if heater has been
running.
4. Waitfive(5) minutesto clearout any
gas. Then smell for gas, including
near the floor. If you smell gas,
STOP! Follow “B” in the safety in-
formation in column 1. If you don’t
smell gas, go to the next step.
5. Slightly depress and turn control
knob counterclockwise
C-clockwise
to
the PILOT position. Keep control
knob pressed in for five (5) seconds
(see Figure 19).
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.
• If control knob does not pop out
when released, contact a qualified
service person or gas supplier for
repairs.
6. With control knob pressed in, press
and release ignitor button. This will
lightpilot.Thepilotis attached tothe
burner. If needed, keep pressing ig-
nitor button until pilot lights.
Note: If pilot does not light, contact
aqualifiedservicepersonor gassup-
plier for repairs. Until repairs are
made,lightpilot withmatch.Tolight
pilot with match, see Manual Light-
ing Procedure on page 16.
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.
8. Slightly depress and turn control
knob counterclockwise
C-clockwise
to
the HIGH position. The burner
should light. Set control knob to any
heat level between HIGH and LO.
( Note: Appearance of pilot assembly may
vary by model.)
Thermocouple
Ignitor
Electrode Pilot Burner
Continued
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
timesyouwilldesirethefullflamesofthe
HI heat setting but will find the heat
outputexcessive.Youcanopenthechim-
ney damper (if you have one) fully or
partially to release some of the heat.

16
105192
UNVENTED PROPANE/LP GAS LOG HEATER
INSPECTING
BURNERS
Check pilot flame pattern and burner flame
patterns often.
PILOT FLAME PATTERN
Figure 21 shows a correct pilot flame pat-
tern. Figure 22 shows an incorrect pilot
flame pattern. ( Note: Appearance of pilot
assembly may vary by model.) The incor-
rect pilot flame is not touching the thermo-
couple.This will causethe thermocouple to
cool. When the thermocouple cools, the
heater will shut down.
If pilot flame pattern is incorrect, as shown
in Figure 22
• turn heater off (see To Turn Off Gas to
Appliance, column 1)
• seeTroubleshooting, pages 17 through 19
Thermocouple
Pilot Burner
Figure 21 - Correct Pilot Flame Pattern
Pilot Burner
Thermocouple
Figure 22 - Incorrect Pilot Flame Pattern
OPERATING
HEATER
Continued
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Heater
1. Pressinand turncontrolknobclock-
wise
Clockwise
to the HIGH position.
2. Turn the control knob clockwise
Clockwise
to the PILOT position.
3. Pressincontrolknoband turnclock-
wise
Clockwise
to the OFF Position.
Shutting Off Burners Only (pilot
stays lit)
1. Turn the control knob clockwise
Clockwise
to the HIGH position.
2. Pressinand turncontrolknobclock-
wise
Clockwise
to the PILOT position.
MANUAL LIGHTING
PROCEDURE
WARNING: Do not operate
heater between PILOT and HIGH
positions.
CAUTION:Donottrytoadjust
heatinglevelsbyusingtheequip-
ment shutoff valve.
The variable control valve can be set to
anyheatsettingandflameheightdesired,
by simply turning the control knob until
that setting is attained. Even the lowest
setting provides realistic, dancing yellow
flames.Selectinghighersettingsproduces
greater heat output. This results in in-
creased heating comfort.
VARIABLE CONTROL
OPERATION
1. Followsteps 1 through5underLight-
ing Instructions, page 15.
2. Depress control knob and light pilot
with match.
3. Keep control knob pressed in for 30
seconds after lighting pilot.After 30
seconds, release control knob. Now
follow step 8, page 15.
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.
MAIN BURNER
Periodically inspect all burner flame holes
with the heater running. All slotted burner
flame holes should be open with yellow
flamepresent.Allroundburnerflameholes
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. Remove blockage. Blocked burner
flame holes will create soot.

17
105192
OWNER’S MANUAL
TROUBLESHOOTING WARNING: Turn off and un-
plug heater and let cool before
servicing. Only a qualified ser-
vice person should service and
repair heater.
CAUTION: Never use a wire,
needle, or similar object to clean
ODS/pilot.ThiscandamageODS/
pilot unit.
POSSIBLE CAUSE
1. Ignitor electrode not connected to igni-
tor cable
2. Ignitor cable pinched or wet
3. Piezo ignitor nut is loose
4. Broken ignitor cable
5. Bad piezo ignitor
6. Ignitor electrode positioned wrong
7. Ignitor electrode broken
1. Gas supply turned off or equipment
shutoff valve closed
2. Control knob not in PILOT position
3. Control knob not pressed in while in
PILOT position
4. Air in gas lines when installed
5. Depleted gas supply
6. ODS/pilot is clogged
7. Gas regulator setting is not correct
1. Control knob not fully pressed in
2. Control knob notpressed in long enough
3. Safetyinterlocksystemhasbeentriggered
4. Equipment 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:
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
REMEDY
1. Reconnect ignitor cable
2. Free ignitor cable if pinched by any
metal or tubing. Keep ignitor cable dry
3. Tightennutholding piezo ignitor to base
panel of log set. Nut is located behind
base panel.
4. Replace ignitor cable
5. Replace piezo ignitor
6. Replace pilot assembly
7. Replace pilot assembly
1. Turn on gas supply or open equipment
shutoff valve
2. Turn control knob to PILOT position
3. Press in control knob while in PILOT
position
4. Continue holding down control knob.
Repeat igniting operation until air is re-
moved
5. Contact local propane/LP gas company
6. Clean ODS/pilot (see Cleaning and
Maintenance, page 20) or replace ODS/
pilot assembly
7. Replace gas regulator
1. Press in control knob fully
2. After ODS/pilot lights, keep control
knob pressed in 30 seconds
3. Wait one minute for safety interlock sys-
tem to reset. Repeat ignition operation
4. Fully open equipment shutoff valve
5. A)Contactlocalpropane/LP gascompany
B) Clean ODS/pilot (see Cleaning and
Maintenance,page 20 ) or replace ODS/
pilot assembly
6. Hand tighten until snug, then tighten 1/4
turn more
7. Replace thermocouple
8. Replace control valve
OBSERVED PROBLEM
When ignitor button is pressed, there is no
spark at ODS/pilot
When ignitor button is pressed, there is
spark at ODS/pilot but no ignition
ODS/pilot lights but flame goes out when
control knob is released
Continued
Note: For additional help, visit DESA
International’s Technical Service web
site at www.desatech.com.
Note: Alltroubleshootingitemsarelistedin
order of operation.
www.desatech.com

18
105192
UNVENTED PROPANE/LP GAS LOG HEATER
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
Burner does not light after ODS/pilot is lit
Delayed ignition burner
Burner backfiring during combustion
Slightsmokeorodorduringinitialoperation
Heater produces a whistling noise when
burner is lit
Whitepowderresidueformingwithinburner
box or on adjacent walls or furniture
Moisture/condensationnoticedonwindows
Dark residue on logs or inside or fireplace
REMEDY
1. Contact local propane/LP gas company
2. Clean burner (see Cleaning and Mainte-
nance, page 20) or replace burner orifice
3. Replace burner orifice
1. Contact local propane/LP gas company
2. Clean burner (see Cleaning and Mainte-
nance, page 20) or replace burner orifice
1. Clean burner (see Cleaning and Mainte-
nance, page 20) or replace burner orifice
2. Replace damaged burner
3. Replace gas regulator
1. Check burner for dirt and debris. If
found, clean burner (see Cleaning and
Maintenance, page 20)
2. Replace gas regulator
3. Problem will stop after a few hours of
operation
1. Turn control knob to LO position and
let warm up for a minute
2. Operate burner until air is removed from
line. Have gas line checked by local pro-
pane/LP gas company
3. Observe minimum installation clear-
ances (see pages 7 through 9)
4. Clean burners (see Cleaning and Mainte-
nance, page 20) or replace burner orifice
1. Turn heater off when using furniture
polish, wax, carpet cleaners, or similar
products
1. Refer to Air for Combustion and Venti-
lation requirements (pages 4 through 6)
1. Properly locate logs(see Installing Logs,
page 14)
2. Eliminate source of drafts around heater
3. Clean out air holes at burner inlet. Peri-
odically repeat as needed
4. Remove blockage
POSSIBLE CAUSE
1. Inlet gas pressure is too low
2. Burner orifice clogged
3. Burner orifice diameter is too small
1. Manifold pressure is too low
2. Burner orifice clogged
1. Burner orifice is clogged or damaged
2. Damaged burner
3. Gas regulator defective
1. Not enough air
2. Gas regulator defective
3. Residues from manufacturing processes
and logs curing
1. Turning control knob to HI position
when burner is cold
2. Air in gas line
3. Air passageways on heater blocked
4. Dirty or partially clogged burner orifice
1. When heated, vapors from furniturepol-
ish, wax, carpet cleaners, etc. may turn
into white powder residue
1. Not enough combustion/ventilation air
1. Improper log placement
2. Drafts or other air currents affecting
flame pattern
3. Air holes at burner inlet blocked
4. Burner flame holes blocked
www.desatech.com

19
105192
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.,createfumes.Thesefumesmaymixwithcombustionairandcreateodors.Theseodors
will disappear over time.
POSSIBLE CAUSE
1. Metal expanding while heating or con-
tracting while cooling
1. Heater burning vapors from paint, hair
spray, glues, cleaners, chemicals, new
carpet,etc. (see IMPORTANT statement
above)
2. Gas leak. SeeWarning statement at
top of page
1. Not enough fresh air is available
2. Low line pressure
3. ODS/pilot is partially clogged
1. Gas leak. SeeWarning statement at
top of page
2. Control valve defective
1. Foreign matter between control valve
and burner
2. Gas leak. SeeWarning statement at
top of page
OBSERVED PROBLEM
Heater produces a clicking/ticking noise
just after burner is lit or shut off
Heater produces unwanted odors
Heater shuts off in use (ODS operates)
Gas odor even when control knob is in OFF
position
Gas odor during combustion
REMEDY
1. This is common with most heaters. If
noise is excessive, contact qualified ser-
vice person
1. Open window and ventilate room. Stop
usingodor causing products whileheater
is running
2. Locate and correct all leaks (see Check-
ing Gas Connections, page 13)
1. Open window and/or doorforventilation
2. Contact local propane/LP gas company
3. Clean ODS/pilot (see Cleaning and
Maintenance, page 20)
1. Locate and correct all leaks (see Check-
ing Gas Connections, page 13)
2. Replace control valve
1. Take apart gas tubing and remove for-
eign matter
2. Locate and correct all leaks (see Check-
ing Gas Connections, page 13)
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20
105192
UNVENTED PROPANE/LP GAS LOG HEATER
CLEANING AND
MAINTENANCE
WARNING: Turn off heater
and let cool before cleaning.
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.
LOGS
• If you remove logs for cleaning, refer to
Installing Logs, page 14, to properly re-
place logs.
• Replace log(s) if broken or chipped
(dime-sized or larger).
MAIN BURNER
Periodically inspect all burner flame holes
with the heater running. All slotted burner
flame holes should be open with yellow
flamepresent.Allroundburnerflameholes
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. Remove blockage. Blocked burner
flame holes will create soot.
SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
• burners will have delayed ignition
• heater will not produce specified heat
• propane/LP gas supply may be low
You may feel your gas pressure is too low.
If so, contact your local propane/LP gas
supplier.
TECHNICAL
SERVICE
You may have further questions about in-
stallation, operation, or troubleshooting. If
so, contact Fireplace Manufacturers
Incorporated’s Technical Service Depart-
ment at 1-866-672-6040.
You can also visit DESA International’s
Technical Service web site at
www.desatech.com.
Figure 23 - Injector Holder On Outlet
Burner Tube
Burner
Tube
Injector Holder
(May Be Brass
or Aluminum
Depending on
Model)
Primary Air Inlet
Holes (Shape of
Holes May Vary
by Model)
Figure 24 - Pilot Inlet Air Hole
Burner
Tube
Pilot
Assembly
Pilot Air
Inlet
Hole
Ports/Slots
CLEANING BURNER
INJECTOR HOLDER AND
PILOT AIR INLET HOLE
The primary air inlet holes allow the proper
amount of air to mix with the gas. This
provides a clean burning flame. Keep these
holes clear of dust, dirt, lint, and pet hair.
Clean these air inlet holes prior to each
heatingseason.Blockedairholeswillcreate
soot.Werecommendthatyoucleanthe unit
every three months during operation and
have heater inspected yearly by a qualified
service person.
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-
tionsonthecan, youcoulddamagethepilot
assembly.
1. Shut off the unit, including the pilot.
Allow the unit to cool for at least thirty
minutes.
2. Inspect burner, pilot, and primary air
inlet holes on injector holder for dust
and dirt (see Figure 22).
3. Blow air through the ports/slots and
holes in the burner.
4. Check the injector holder located at the
end of the burner tube again. Remove
any large particles of dust, dirt, lint, or
pet hair with a soft cloth or vacuum
cleaner nozzle.
5. Blow air into the primary air holes on
the injector holder.
6. In case any large clumps of dust have
now been pushed into the burner repeat
steps 3 and 4.
Clean the pilot assembly also. A yellow tip
on the pilot flame indicates dust and dirt in
the pilot 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 23). With the unit off, lightly
blowairthrough the air inlethole. You may
blowthroughadrinkingstrawifcompressed
air is not available.