Duluth Forge FDLR18-1 User Manual
US
MODEL
FDLR18-1
VENT-FREE GAS LOG
CHASSIS
OWNER’S OPERATION AND
INSTALLATION MANUAL
®
WARNING: If the information in this manual is not
followed exactly, a re or explosion may result causing
property damage, personal injury or loss of life.
— Do not store or use gasoline or other ammable va-
pors 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 re
department.
—
Installation and service must be performed by a qualied installer, service agency or the gas supplier.
WARNING: This appliance is equipped for Natural and
Propane gas. Field conversion is not permitted other than
between natural or propane gases.
Questions, problems, missing parts? Before returning to your retailer, call
our customer service department at 1-855-607-6557, 8:00 am - 4:30 pm EST,
Monday through Friday or email info@factorybuysdirect.com
TABLE OF CONTENTS
Safety ........................................................ 3
Qualied Installing Agency ........................ 4
Specications ............................................ 5
Product Features ....................................... 5
Product Identication ................................. 5
Local Codes............................................... 6
Unpacking.................................................. 6
Water Vapor: A By-Product Of
Unvented Room Heaters ..................... 6
Air For Combustion and Ventilation ........... 7
Installation ................................................. 9
Operation ................................................. 19
Inspecting Burners................................... 23
Care And Maintenance ............................ 24
Troubleshooting ....................................... 25
Replacement Parts .................................. 29
Accessories ............................................. 29
Service Hints ........................................... 29
Technical Service..................................... 29
Parts ........................................................ 30
Warranty .................................................. 32
SAVE THIS BOOK
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
This is an unvented gas-red heater. It uses air (oxygen)
from the room in which it is installed. Provisions for adequate combustion and ventilation air must be provided.
Refer to Air For Combustion and Ventilation section on
page 7 of this manual.
WARNING: Improper installation, adjustment, al-
teration, service or maintenance can cause injury or
property damage. Refer to this manual for correct installation and operational procedures. For assistance
or additional information consult a qualied installer,
service agency or the gas supplier.
This appliance may be installed in an aftermarket,* permanently located, manufactured (mobile) home, where
not prohibited by local codes.
This appliance is only for use with propane or natural
gas. Field conversion by any other means including the
use of a kit is not permitted.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer.
PATENT INFORMATION
This product may be covered by one or more of the following United States patents:
8,915,239 8,851,065 8,764,436 8,757,202 8,757,139 8,752,541 8,568,136
8,545,216 8,517,718 8,516,878 8,506,290 8,465,277 8,317,511 8,297,968
8,281,781 8,241,034 8,235,708 8,152,515 8,011,920 7,967,006 7,967,007
2
7,654,820 7,730,765 7,677,236 7,607,426 7,434,447
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200234-01A
SAFETY
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, operate, or service this heater.
Improper use of this heater can
cause serious injury or death
from burns, fire, explosion,
electrical shock and carbon
monoxide poisoning. Failure
to follow these instructions will
void the warranty.
Only a qualied installer, service
agent, or local gas supplier may
install and service this product.
WARNING: Keep the appli-
ance area clear and free from
combustible materials, gasoline,
and other ammable vapors and
liquids.
WARNING: This appliance
can be used with propane or
natural gas. It is shipped from
the factory adjusted for use with
propane.
DANGER: Carbon monoxide
poisoning may lead to death!
CARBON MONOXIDE POISONING: Early
signs of carbon monoxide poisoning resemble
the u, with headaches, dizziness or nausea.
If you have these signs, the heater may not be
working properly. Get fresh air at once! Have
heater serviced. Some people are more affected by carbon monoxide than others. These
include pregnant women, people with heart or
lung disease or anemia, those under the inuence of alcohol and those at high altitudes.
NATURAL AND PROPANE/LP GAS: Natural
and Propane/LP gas are odorless. An odormaking agent is added to the gas. The odor
helps you detect a gas leak. However, the
odor added to the gas can fade. Gas may be
present even though no odor exists.
WARNING: Any change to
this heater or its controls can
be dangerous.
WARNING: Do not allow fans
to blow directly into replace.
Avoid any drafts that alter burner
ame patterns.
WARNING: Do not use a
blower insert, heat exchange
insert or other accessory not
approved for use with this heater.
WARNING: Due to high tem-
peratures, the appliance should
be located out of trafc and away
from furniture and draperies.
WARNING: Do not place
clothing or other flammable
material on or near the appliance. Never place any objects
in the heater.
WARNING: The log set be-
comes very hot when running.
Keep children and adults away
from hot surfaces to avoid burns
or clothing ignition. Fireplace
will remain hot for a time after
shutdown. Allow surfaces to
cool before touching.
WARNING: Carefully super-
vise young children when they
are in the room with the heater.
WARNING: You must operate
this log set with screen in place.
200234-01A
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3
SAFETY
1. Do not place Propane/LP supply tank(s)
inside any structure. Propane/LP supply
tank(s) must be placed outdoors.
2. This heater shall not be installed in a
bedroom or bathroom.
3. This heater needs fresh air ventilation to
run properly. This heater has an Oxygen
Depletion Sensing (ODS) safety shutoff
system. The ODS shuts down the heater
if not enough fresh air is available. See
Air for Combustion and Ventilation, pages
7 and 8. If heater keeps shutting off, see
Troubleshooting, page 25.
4. Keep all air openings in front and bottom
of heater clear and free of debris. This will
ensure enough air for proper combustion.
5. If heater shuts off, do not relight until you
have provided fresh, outside air. If heater
keeps shutting off, have it serviced.
6. Do not run heater:
• Where ammable liquids or vapors are
used or stored.
• Under dusty conditions.
7. Before using furniture polish, wax, carpet
cleaner, or similar products, turn heater
off. If heated, the vapors from these products may create a white powder residue
within burner box or on adjacent walls or
furniture.
8. Do not use heater if any part has been
under water. Immediately call a qualied
service technician to inspect the room
heater and to replace any part of the
control system and any gas control which
has been under water.
9. Turn off heater and let cool before servicing. Only a qualied service person should
service and repair heater.
10. Operating heater above elevations of
4,500 feet could cause pilot outage.
11. To prevent performance problems, do
not use propane/LP fuel tank of less than
100 lbs. capacity.
12. Do not use this heater as a wood-burning
heater. Use only the logs provided with the
heater.
13. Solid fuels should not be burned in
replace in which a vent-free log set is
installed. Do not use this heater to cook
food or burn paper or other objects.
14. To prevent sooting, follow the instructions
in Care and Maintenance (see page 24).
15. Do not add extra logs or ornaments such
as pine cones, vermiculite, or rock wool.
Using these added items can cause sooting. Do not add lava rock around base.
Rock and debris could fall into the control
area of heater. After servicing, always
replace screen before operating heater.
16. This heater is designed to be smokeless. If
logs ever appear to smoke, turn off heater
and call a qualied service person.
Note: During initial operation, slight smok-
ing could occur due to log curing and the
heater burning manufacturing residues.
17. If replace has glass doors, never operate
this heater with glass doors closed. If you
operate heater with doors closed, heat will
build up inside replace and cause glass
to burst. If replace opening has vents
at the bottom, you must open the vents
before operating log set. Always operate
heater with glass doors fully open.
18. Do not use this heater if any log is broken.
Do not operate heater if a log is chipped
(dime-size or larger).
QUALIFIED INSTALLING AGENCY
Only a qualied agency should install and
replace gas piping, gas utilization equipment
or accessories, and repair and equipment servicing. The term “qualied agency” means any
individual, rm, corporation, or company that
either in person or through a representative
is engaged in and is responsible for:
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a) Installing, testing, or replacing gas piping
or
b) Connecting, installing, testing, repairing,
or servicing equipment; that is experienced
in such work; that is familiar with all precautions required; and that has complied with
all the requirement of the authority having
jurisdiction.
200234-01A
SPECIFICATIONS
Model FDLR18-1
Ignition Electronic Piezo Ignitor
Gas Type Natural Gas Propane Gas
Maximum Input Rating
Minimum Input Rating
Manifold Pressure 4" W.C. 9" W.C.
Inlet Gas Pressure*
(inches of water)
*For purposes of input adjustment
PRODUCT FEATURES
This log set has been tested and approved to
ANSI Z21.11.2 standard for Unvented Heaters and can be operated with the ue damper
closed. State and local codes in some areas
prohibit the use of vent-free heaters.
SAFETY PILOT
This heater has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. The
ODS/pilot shuts off the heater if there is not
enough fresh air.
PIEZO IGNITION SYSTEM
This heater is equipped with an electronic
piezo control system. This system requires
AAA batteries (provided).
30,000 Btu/Hr 30,000 Btu/Hr
16,000 Btu/Hr 27,000 Btu/Hr
Max. 9" Max. 14"
Min. 5" Min. 11"
THERMOSTAT HEAT CONTROL
The control automatically cycles the burner
on and off to maintain a desired room
temperature.
2 GAS OPTIONS AVAILABLE
Your heater is equipped to operate on either
Propane/LP or Natural gas. The heater is
shipped from the factory ready for connecting to Propane/LP. The heater can easily be
changed to Natural gas by having your qualied installer follow the instructions on page
13 and the markings on the heater.
Ignitor Button
200234-01A
PRODUCT IDENTIFICATION
Pilot
Figure 1 - Vent-Free Log Chassis
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Burner
Control Knob
5
LOCAL CODES
Install and use heater with care. Follow all
local codes. In the absence of local codes,
use the latest edition of The National Fuel
Gas Code, ANSI Z223.1/NFPA 54*.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
1 Batterymarch Park
Quincy, MA 02269-9101
This heater is designed for vent-free operation. State and local codes in some areas
prohibit the use of vent-free heaters.
UNPACKING
1. Remove logs and burner base assembly
from carton.
Note: Do not pick up burner base as-
sembly by burners as this could damage
heater. Always handle base assembly by
grate.
WATER VAPOR: A BY-PRODUCT OF
UNVENTED ROOM HEATERS
Water vapor is a by-product of gas combustion. An unvented room heater produces approximately one (1) ounce (30 mL) of water
for every 1,000 BTUs (0.3 KWs) of gas input
per hour. Unvented room heaters are recommended as supplemental heat (a room) rather
than a primary heat source (an entire house).
In most supplemental heat applications, the
water vapor does not create a problem. In
most applications, the water vapor enhances
the low humidity atmosphere experienced
during cold weather.
State of Massachusetts: The installation
must be made by a licensed plumber or
gas tter in the Commonwealth of Massachusetts.
Sellers of unvented propane or natural
gas-red supplemental room heaters shall
provide to each purchaser a copy of 527
CMR 30 upon sale of the unit.
In the State of Massachusetts the gas
cock must be a T-handle type. The State
of Massachusetts requires that a exible
appliance connector cannot exceed three
feet in length.
2. Remove all protective packaging applied
to logs and heater for shipment.
3. Check all items for any shipping damage.
If damaged, promptly inform dealer where
you purchased the heater.
The following steps will help ensure that water
vapor does not become a problem.
1. Be sure the heater is sized properly for the
application, including ample combustion
air and circulation air.
2. If high humidity is experienced, a dehumidier may be used to help lower the
water vapor content of the air.
3. Do not use an unvented room heater as
the primary heat source.
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200234-01A
AIR FOR COMBUSTION AND VENTILATION
WARNING: This heater shall
not be installed in a conned space
or unusually tight construction
unless provisions are provided
for adequate combustion and
ventilation air. Read the following
instructions to insure proper fresh
air for this and other fuel-burning
appliances in your home.
Today’s homes are built more energy efcient
than ever. New materials, increased insulation
and new construction methods help reduce
heat loss in homes. Home owners weather
strip and caulk around windows and doors
to keep the cold air out and the warm air in.
During heating months, home owners want
their homes as airtight as possible.
While it is good to make your home energy
efcient, your home needs to breathe. Fresh
air must enter your home. All fuel-burning appliances need fresh air for proper combustion
and ventilation.
Exhaust fans, replaces, clothes dryers and
fuel burning appliances draw air from the house
to operate. You must provide adequate fresh
air for these appliances. This will insure proper
venting of vented fuel-burning appliances.
WARNING: This heater shall
not be installed in a room or
space unless the required volume of indoor combustion air
is provided by the method described in the National Fuel Gas
Code, ANSI Z223.1/NFPA 54, the
International Fuel Gas Code, or
applicable local codes.
WARNING: If the area in which
the heater may be operated is
smaller than that dened as
an unconned space or if the
building is of unusually tight
construction, provide adequate
combustion and ventilation air
by one of the methods described
in the National Fuel Gas Code,
ANSI Z223.1/NFPA 54, the International Fuel Gas Code, or
applicable local codes.
200234-01A
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AIR FOR COMBUSTION AND VENTILATION
Ventilation
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining
unconned space. When ventilating to an
adjoining unconned space, you must provide
two permanent openings: one within 12" of the
ceiling and one within 12" of the oor on the
wall connecting the two spaces (see options
1 and 2, Figure 2). You can also remove door
into adjoining room (see option 3, Figure 2).
Follow the National Fuel Gas Code, ANSI
Z223.1/NFPA 54, Air for Combustion and
Ventilation for required size of ventilation
grills or ducts.
12"
Grills Into
Adjoining
Room,
Option 1
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation
grills or ducts. You must provide two permanent openings: one within 12" of the ceiling
and one within 12" of the oor. Connect these
items directly to the outdoors or spaces open
to the outdoors. These spaces include attics
and crawl spaces. Follow the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Air for
Combustion and Ventilation for required size
of ventilation grills or ducts.
IMPORTANT: Do not provide openings
for inlet or outlet air into attic if attic has a
thermostat-controlled power vent. Heated air
entering the attic will activate the power vent.
Rework worksheet, adding the space of the
adjoining unconned space. The combined
spaces must have enough fresh air to supply
all appliances in both spaces.
Ventilated
Attic
To Attic
Outlet
Air
Outlet
Air
12"
Figure 2 - Ventilation Air from Inside
Building
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To
Crawl
Inlet
Air
Inlet Air
Ventilated
Crawl Space
Space
Figure 3 - Ventilation Air from Outdoors
200234-01A
INSTALLATION
NOTICE: This heater is intended
for use as supplemental heat.
Use this heater along with your
primary heating system. Do not
install this heater as your primary heat source. If you have a
central heating system, you may
run system’s circulating blower
while using heater. This will help
circulate the heat throughout the
house. In the event of a power
outage, you can use this heater
as your primary heat source.
WARNING: A qualied ser-
vice person must install heater.
Follow all local codes.
WARNING: Before installing
in a solid fuel burning replace,
the chimney ue and rebox
must be cleaned of soot, creosote, ashes and loose paint by
a qualified chimney cleaner.
Creosote will ignite if highly
heated. A dirty chimney ue may
create and distribute soot within
the house. Inspect chimney ue
and rebox for damage. If damaged, repair ue before operating heater.
WARNING: Seal any fresh
air vents or ash clean-out doors
located on oor or wall of replace. If not, drafting may cause
pilot outage or sooting. Use a
heat-resistant sealant. Do not
seal chimney ue damper.
WARNING: Never install the
heater
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture, cloth-
ing, or other ammable objects
are less than 36" from the front,
42" from top, or 16" from sides
of the heater.
• in high trafc areas
• in windy or drafty areas
CAUTION: This heater cre-
ates warm air currents. These
currents move heat to wall surfaces next to heater. Installing
heater next to vinyl or cloth wall
coverings or operating heater
where impurities (such as tobacco smoke, aromatic candles,
cleaning uids, oil or kerosene
lamps, etc.) in the air exist, may
discolor walls or cause odors.
NOTICE: State or local codes
may only allow operation of this
appliance in a vented conguration. Check your state or local
codes.
WARNING: This appliance is
designed for installation in only
a solid-fuel burning masonry or
UL 127 factory-built replace or
in a listed ventless rebox enclosure. Exception: DO NOT install
this appliance in a factory-built
replace that includes instructions stating it has not been
tested or should not be used
with unvented gas logs.
200234-01A
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9
INSTALLATION
IMPORTANT: Vent-free heaters add moisture
to the air. Although this is benecial, installing
heater in rooms without enough ventilation air
may cause mildew to form too much moisture.
See Air for Combustion and Ventilation, pages
7 and 8.
Before beginning assembly or operation of the
product, make sure all parts are present. If any
part is missing or damaged, do not attempt to
assemble, install or operate the product. Contact customer service for replacement parts.
Before installing heater, make sure you have
the items listed below:
• Hardware package (provided with heater)
• Electric drill with 3/16" drill bit
• Phillips screwdriver
CHECK GAS TYPE
Be sure your gas supply is right for your heater. Otherwise, call dealer where you bought
the heater for proper type heater.
CLEARANCES TO
COMBUSTIBLES
WARNING: Maintain the
minimum clearances. If possible,
provide greater clearances from
oor, ceiling, and adjoining wall.
Measure from outermost point
of heater.
Minimum Fireplace Clearance To
Combustible Materials
Side Wall 16", Ceiling 42", Front 36"
LOG SIZING REQUIREMENTS
Minimum Firebox Size
18" Log Set: Height 20", Depth 13",
Front Width 29", Rear Width 22"
Minimum Clearances For Side
Combustible Material, Side Wall
and Ceiling
A. Clearance from the side of the replace
cabinet to any combustible material and
wall should follow diagram in Figure 4.
B. Clearance from the top of the replace
opening to the ceiling must not be less
than 42".
*
*Minimum 16" from Side Wall
Figure 4 - Minimum Clearance for
Combustible to Wall
Minimum Noncombustible Material
Clearances
If Not Using Mantel
Note: If using a mantel, proceed to If Using
Mantel. If not using a mantel, follow the information below.
You must have noncombustible material(s)
above the replace opening. Noncombustible
materials (such as slate, marble, tile, etc.)
must be at least 1/2" thick. With sheet metal,
you must have noncombustible material behind it. Noncombustible material must extend
at least 12" up (for all models). See Figure 5
for minimum clearances.
Requirements for Safe Installation
(A) 12" or more: Noncombustible
material OK.
(A) Between 8" and 12":
Install replace hood accessory.
(A) 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 ue damper open.
Noncombustible
Material Distance
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
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200234-01A
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