Duluth forge FDF400RT-ZC User Manual
VENT-FREE GAS SYSTEM
US
OWNER'S OPERATION
AND INSTALLATION
MANUAL
MODELS
FDF400RT-ZC SERIES
®
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/LP gas. Field conversion is not permitted other
than between natural or propane/LP 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
Specications ............................................ 5
Qualied Installing Agency ........................ 5
Product Features ....................................... 5
Product Identication ................................. 6
Unpacking.................................................. 6
Local Codes............................................... 6
Water Vapor: A By-Product Of
Unvented Room Heaters ..................... 7
Air For Combustion and Ventilation ........... 7
Installation ................................................. 9
Operation ................................................. 19
Inspecting Burners................................... 23
Care And Maintenance ............................ 24
Service Hints ........................................... 25
Technical Service..................................... 25
Troubleshooting ....................................... 26
Accessories ............................................. 29
Parts ........................................................ 30
Replacement Parts .................................. 31
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
7,654,820 7,730,765 7,677,236 7,607,426 7,434,447
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200372-01A2
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.
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.
WARNING: Any change to
this heater or its controls can
be dangerous.
WARNING: Do not use a
blower insert, heat exchange
insert or other accessory not approved for use with this heater.
WARNING: Do not allow fans
to blow directly into the heater.
Avoid any drafts that alter burner
ame pattern including ceiling
fans. Altered burner patterns
can cause sooting.
WARNING: Do not place
clothing or other flammable
material on or near the appliance. Never place any objects
in the heater.
WARNING: Due to high tem-
peratures, the appliance should
be located out of trafc and away
from furniture and draperies.
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 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.
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WARNING: Heater becomes
very hot when running. Keep
children and adults away from
hot surfaces to avoid burns or
clothing ignition. Heater will remain hot for a time after shutoff.
Allow surfaces to cool before
touching.
WARNING: Carefully super-
vise young children when they
are in the room with the heater.
WARNING: Make sure a re-
place screen is in place before
running heater.
3200372-01A
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 should 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, page 7.
If heater keeps shutting off, see Trouble-
shooting, page 26.
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. Always run heater with control knob at
PILOT/IGN or ON locked positions. never
set control knob between locked positions. Poor combustion and higher levels
of carbon monoxide may result.
9. 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.
10. Turn off and unplug heater and let cool
before servicing. Only a qualied service
person should service and repair heater.
11. Operating heater above elevations of
4,500 feet could cause pilot outage.
12. To prevent performance problems, do
not use propane/LP fuel tank of less than
100 lbs. capacity.
13. Do not use this heater as a wood-burning
heater. Use only the logs provided with the
heater.
14. To prevent the creation of soot, follow the
instructions under Care and Maintenance
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 log heater is designed to be smokeless. If logs ever appear to be smoking,
turn off heater and call a qualied service
technician. NOTE: During initial operating,
slight smoking could occur due to log curing and heater burning off manufacturing
residues.
17. 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.
18. Do not use this heater if any log is broken.
Do not operate heater if a log is chipped
(dime-size or larger).
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200372-01A4
SPECIFICATIONS
FDF400RT-ZC
Gas Type Natural Propane/LP
Maximum Input Rating 32,000 BTU/Hr 32,000 BTU/Hr
Minimum Input Rating N/A N/A
Regulator Pressure Setting 4" W.C. 9" W.C.
Inlet Gas Pressure*
(inches of water)
Ignition Electronic Piezo Ignitor
Heater Dimensions (H x W x D) 29.5" x 29.1" x 15.6"
Carton Dimensions (H x W x D) 31.1" x 31.5" x 18.1"
Fireplace Weight 69.5 lbs.
Shipping Weight 79.5 lbs.
* For purposes of input adjustment.
Max. 9.5" W.C. Max. 14" W.C.
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:
Min. 5" W.C. Min. 11" W.C.
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.
PRODUCT FEATURES
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).
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THERMOSTAT HEAT CONTROL
The control automatically cycles the burner
on and off to maintain a desired room tem-
perature.
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
10 and the markings on the heater.
5200372-01A
Hood
Screen
Logs
Heater Controls
(Inside Panel)
PRODUCT IDENTIFICATION
Figure 1 - Vent-Free Fireplace Insert
UNPACKING
1. Remove top inner pack.
2. Tilt carton so that heater is upright.
3. Remove protective side packaging.
4. Slide heater out of carton.
5 Remove protective plastic wrap.
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.
25 West 43rd Street
New York, NY 10036
National Fire Protection Association, Inc.
1 Batterymarch Park
Quincy, MA 02269-9101
6. Hold the screen, lift, and pull forward.
7. Remove log set by cutting plastic ties.
8. Carefully unwrap log.
9. Check for any shipping damage. If heater
or log is damaged, promptly inform your
dealer where you bought the heater.
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.
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200372-01A6
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.
AIR FOR COMBUSTION AND VENTILATION
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.
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 does
not meet the required volume for
indoor combustion air, combustion and ventilation air shall be
provided by one of the methods
described in the National Fuel
Gas Code, ANSI Z223.1/NFPA
54, the International Fuel Gas
Code, or applicable local codes.
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7200372-01A
AIR FOR COMBUSTION AND 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"
Ventilation
Grills into
Adjoining
Room,
Option 1
Or
Remove
Door into
Adjoining
Room,
Option 3
Figure 2 - Ventilation Air from Inside
Ventilation Grills
Into Adjoining Room,
12"
Building
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
Crawl Space
Ventilated
To Attic
To
Crawl
Space
Outlet
Air
Inlet
Air
Outlet
Air
Inlet Air
Figure 3 - Ventilation Air from Outdoors
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200372-01A8
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,
clothing, or other ammable
objects are less than 42" from
the front, top, or 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.
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, page 7.
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.
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9200372-01A
INSTALLATION
GAS SELECTION
This appliance is factory
preset for propane/LP gas.
No changes are required for
connecting to propane/LP.
Only a qualied installer or service
technician can perform gas selection and connecting to gas supply.
CAUTION: Two gas line in-
stallations at the same time are
prohibited.
Insert Gas Fitting
for Propane/LP Gas
Insert Gas Fitting
for Natural Gas
CAUTION: To avoid gas leakage for the gas not being used at
the inlet of regulator, a qualied
installer or service technician
must use supplied cap.
You will notice a color coded
plunger on the inside of the regulator. This is normal. When the inlet connection tting is inserted
and tightened, this plunger will
be pushed back by the tting
making all of the adjustments
for the gas being supplied. DO
NOT REMOVE THE PLUNGER.
The regulator will not work.
The inlet regulator is color coded
for identication of the correct
gas type. Blue is for propane (LP
gas) and yellow is for natural gas.
Blue Propane/LP
Gas Plunger
Underneath Dust
Cover
Figure 4 - Gas Regulator
FOR PROPANE/LP GAS
INSTALLATION: BLUE
1. Remove blue dust cover.
Blue Dust
Cover
Yellow Natural Gas
Plunger Underneath
Metal Cap
DO NOT REMOVE
Blue Propane/LP Plunger
Install Gas Fitting Here
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200372-01A10
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