Duluth Forge FBNSD32RT Quick start guide

VENT-FREE GAS
FIREPLACE INSERT
OWNER’S OPERATION AND
INSTALLATION MANUAL
MODEL FBNSD32RT
PFS
®
US
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 quali-
ed 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 1-866-573-0674, 7:30 am - 4:15 pm CST,
Monday through Friday or email customerser[email protected]
This insert can be used in the following
mantel and replace systems:
FBNSD32RT-M-(MO,HC,U)

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TABLE OF CONTENTS
Safety ........................................................ 3
Specications ............................................ 4
Qualied Installing Agency ........................ 5
Product Features....................................... 5
Local Codes............................................... 5
Unpacking.................................................. 6
Product Identication................................. 6
Water Vapor: A By-Product Of
Unvented Room Heaters..................... 6
Air For Combustion and Ventilation........... 7
Installation ................................................. 9
Operation................................................. 20
Inspecting Burners................................... 24
Care And Maintenance............................ 25
Troubleshooting....................................... 26
Replacement Parts.................................. 29
Parts ........................................................ 30
Service Hints ........................................... 31
Technical Service..................................... 31
Warranty .................................................. 32
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 ad-
equate 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 in-
stallation and operational procedures. For assistance
or additional information consult a qualied installer,
service agency or the gas supplier.
This appliance may be installed in an aftermarket,* per-
manently 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.
SAVE THIS BOOK
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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SAFETY
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, op-
erate, 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 qualied 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 af-
fected by carbon monoxide than others. These
include pregnant women, people with heart or
lung disease or anemia, those under the inu-
ence 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.
WARNING: Any change to
this replace 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 trafc and away
from furniture and draperies.
WARNING: Do not place
clothing or other ammable ma-
terial on or near the appliance.
Never place any objects in the
replace.
WARNING: Fireplace 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 oper-
ate this replace with screen
in place.

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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 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 prod-
ucts may create a white powder residue
within burner box or on adjacent walls or
furniture.
8. Always run heater with control knob at
PILOT or ON locked positions. Never set
control knob between locked positions.
Poor combustion and higher levels of
carbon monoxide may result.
SAFETY
9. Do not use heater if any part has been
under water. Immediately call a qualied
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 qualied 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 sooting, follow the instructions
in Care and Maintenance (see page 25).
15. Do not add extra logs or ornaments such
as pine cones, vermiculite, or rock wool.
Using these added items can cause soot-
ing. 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 qualied service person.
Note: During initial operation, slight smok-
ing could occur due to log curing and the
heater burning manufacturing residues.
SPECIFICATIONS
Model FBNSD32RT
Gas Type Natural Gas Propane Gas
Ignition Piezo Ignitor Piezo Ignitor
Input Rating 32,000 Btu/Hr 32,000 Btu/Hr
Pressure Regulator Setting 4" W.C. 9" W.C.
Inlet Gas Pressure* (inches of water)
(*for purposes of input adjustment)
Maximum 9.5" Maximum 14"
Minimum 5" Minimum 11"
Heater Dimensions (HxWxD) • 33.27" × 36.38" × 18.38"
Carton Dimensions (HxWxD) • 35.85" × 40.19" × 20.49"
Stove Weight • 88.2 lbs
Shipping Weight • 98.5 lbs

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QUALIFIED INSTALLING AGENCY
Only a qualied agency should install and
replace gas piping, gas utilization equipment
or accessories, and repair and equipment ser-
vicing. The term “qualied agency” means any
individual, rm, corporation, or company that
either in person or through a representative
is engaged in and is responsible for:
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 precau-
tions 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 Deple-
tion 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
one AAA battery (provided).
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 connect-
ing to Propane/LP. The heater can easily be
changed to Natural gas by having your quali-
ed installer follow the instructions on page
10 and the markings on the heater.
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
This heater is designed for vent-free op-
eration. State and local codes in some areas
prohibit the use of vent-free heaters.
State of Massachusetts: The installation
must be made by a licensed plumber or
gas tter in the Commonwealth of Mas-
sachusetts.
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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PRODUCT IDENTIFICATION
Figure 1 - Vent-Free Fireplace Insert
Hood
Screen
Heater Controls
(Behind Panel)
WATER VAPOR: A BY-PRODUCT OF
UNVENTED ROOM HEATERS
Water vapor is a by-product of gas combus-
tion. An unvented room heater produces ap-
proximately one (1) ounce (30 mL) of water
for every 1,000 BTUs (0.3 KWs) of gas input
per hour. Unvented room heaters are recom-
mended 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.
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 dehu-
midier 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.
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.
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.

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AIR FOR COMBUSTION AND VENTILATION
WARNING: This heater shall
not be installed in a conned
space or unusually tight construc-
tion unless provisions are made
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 efcient
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
efcient, your home needs to breathe. Fresh
air must enter your home. All fuel-burning ap-
pliances 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 vol-
ume of indoor combustion air
is provided by the method de-
scribed 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, combus-
tion and ventilation air shall be
provided by one of the methods
described in the National Fuel
Gas Code,ANSI Z223.1/NFPA54,
the International Fuel Gas Code,
or applicable local codes.

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VENTILATION AIR
Ventilation Air From Inside Building
AIR FOR COMBUSTION AND VENTILATION
Outlet
Air
Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
Figure 2 - Ventilation Air from Inside
Building
Figure 3 - Ventilation Air from Outdoors
This fresh air would come from an adjoining
unconned space. When ventilating to an
adjoining unconned 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.
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation
grills or ducts. You must provide two perma-
nent 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 unconned space. The combined
spaces must have enough fresh air to supply
all appliances in both spaces.
Or
Remove
Door into
Adjoining
Room,
Option 3
Ventilation Grills
Into Adjoining Room,
Option 2
12"
12"
Ventilation
Grills into
Adjoining
Room,
Option 1

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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 pri-
mary 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 qualied ser-
vice person must install heater.
Follow all local codes.
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 trafc areas
• in windy or drafty areas
CAUTION: This heater cre-
ates warm air currents. These
currents move heat to wall sur-
faces next to heater. Installing
heater next to vinyl or cloth wall
coverings or operating heater
where impurities (such as to-
bacco smoke, aromatic candles,
cleaning uids, oil or kerosene
lamps, etc.) in the air exist, may
cause walls to discolor.
Figure 4 - Minimum Clearances to Wall
and Ceiling
IMPORTANT: Vent-free heaters add moisture
to the air. Although this is benecial, 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.
CHECK GAS TYPE
Be sure your gas supply is right for your heat-
er. Otherwise, call dealer where you bought
the heater for proper type heater.
CLEARANCES TO
COMBUSTIBLES
WARNING: You must main-
tain the minimum clearances
shown in Figure 4. If you can,
provide greater clearances from
oor, ceiling, and joining wall.
Measure from outermost point
of heater.
Minimum Wall and Ceiling
Clearances
A. Clearances from outermost point of heater
to any combustible side wall should not be
less than 7".
B. Clearances from the heater to the ceiling
should not be less than 42".
Note: When heater is installed directly on
carpeting, vinyl or other combustible material,
other than wood ooring, the heater must be
installed on a metal or wood panel extending
the full width and depth of the heater.
Ceiling
7"
Min.
7"
Min.
42"
Min.
Side
Wall
Side
Wall
Front View

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INSTALLATION
Yellow Natural Gas
Plunger Underneath
Metal Cap
Blue Propane/LP
Gas Plunger
Underneath Dust
Cover
Figure 5 - Gas Regulator
Insert Gas Fitting
for Natural Gas
Insert Gas Fitting
for Propane/LP Gas
GAS SELECTION
This appliance is factory
preset for propane/LP gas.
No changes are required for
connecting to propane/LP.
Only a qualied installer or service
technician can perform gas selec-
tion and connecting to gas supply.
CAUTION: Two gas line in-
stallations at the same time are
prohibited.
CAUTION: To avoid gas leak-
age for the gas not being used at
the inlet of regulator, a qualied
installer or service technician
must use supplied cap.
You will notice a color coded
plunger on the inside of the regula-
tor. 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 identication of the correct
gas type. Blue is for propane (LP
gas) and yellow is for natural gas.
Blue Dust
Cover
DO NOT REMOVE
Blue Propane/LP Plunger
Install Gas Fitting Here
FOR PROPANE/LP GAS
INSTALLATION: BLUE
1. Remove blue dust cover.