Osburn 2400 User manual

READ AND KEEP THIS MANUAL FOR REFERENCE
45110A
Printed in Canada 16-08-2013
OWNER`S MANUAL
2400 MODEL STOVE
US ENVIRONMENTAL PROTECTION
AGENCY PHASE II CERTIFIED
WOODSTOVE
Verified and tested following
ULC S627 and UL 1482 Standards
by:
Manufactured by: STOVE BUILDER INTERNATIONAL INC.
250, de Copenhague, Saint-Augustin-de-Desmaures (Québec) G3A 2H3
Tel: [phone]
Fax: [phone]
www.osburn-mfg.com
This manual is available for free download on the manufacturer’s web site. It is a copyrighted
document. Re-sale is strictly prohibited. The manufacturer may update thismanual from time
to time and cannot be responsible for problems, injuries, or damages arising out of the use of
information contained in any manual obtained from unauthorized sources.

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INTRODUCTION
SBIINC., one of the most important wood stove and fireplacemanufacturersinCanada,congratulates
youonyour purchase and wishes to help you get maximum satisfaction fromyour wood stove. In the
pages that follow, we will give you advice on wood heating and controlled combustion as well as
technical specifications regarding installation, operation and maintenance of the model you have
chosen.
The instructions pertainingto the installation of yourwood stove comply withULC-S627and UL-1482
standards.
Read this entire manual before you install and use your new stove. If this stove is not properly
installed, a house fire may result. To reduce the risk of fire, follow the installation instructions.
Failure to follow instructions may result in property damage, bodily injury, or even death.
Consult your municipal building department or fire officials about restrictions and installations
requirements in your area and the need to obtain a permit.
Keep this instructions manual for future references.
CAUTIONS:
HOT WHILE IN OPERATION.KEEP CHILDREN,CLOTHING AND FURNITURE AWAY.CONTACT MAY CAUSE SKIN
BURNS.
DO NOT USE CHEMICALS OR FLUIDS TO IGNITE THE FIRE.
DO NOT LEAVE THE STOVE UNATTENDED WHEN THE DOOR IS SLIGHTLY OPENED.
DO NOT BURN WASTES,FLAMMABLE FLUID SUCH AS GASOLINE,NAPHTHA OR MOTOR OIL.
DO NOT CONNECT TO ANY AIR DISTRIBUTION DUCT OR SYSTEM.
ALWAYS CLOSE THE DOOR AFTER THE IGNITION.
REGISTER YOU WARRANTY ONLINE
To receive full warranty coverage, you will need
to show evidence of the date you purchased your
stove. Keep your sales invoice. We also
recommend that you register your warranty
online at
http://www.osburn-mfg.com/warranty-
registration.aspx
Registering your warranty online will help us track
rapidly the information we need on your stove.

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TABLE OF CONTENTS
1.0Installation ........................................................................................................................................... 4
1.1General Installation........................................................................................................................ 4
1.2Clearances to combustibles and floor protector .......................................................................... 5
1.5Chimney System............................................................................................................................ 12
1.5.1Definitions...................................................................................................................................... 12
1.5.2Components................................................................................................................................... 12
1.5.2.1Factory Built Chimney System................................................................................................ 12
1.5.2.2Residential Close Clearances Chimney System ..................................................................... 12
1.5.3General Installation Requirements............................................................................................. 13
1.5.3.1Connectors................................................................................................................................. 13
1.5.3.2Chimney Systems...................................................................................................................... 14
1.5.3.3Exterior Chimney...................................................................................................................... 15
1.5.3.4Draft........................................................................................................................................... 15
1.5.4Typical Types of Chimney Systems............................................................................................. 16
1.6 Door overlay installation.............................................................................................................. 18
2.0Operation............................................................................................................................................ 19
2.1Safety Information........................................................................................................................ 19
2.2Fuel................................................................................................................................................. 20
2.2.1Simple Wood Moisture Test......................................................................................................... 21
2.3Notes About First Firing .............................................................................................................. 21
2.4Lighting A Fire.............................................................................................................................. 21
2.5Maintaining The Fire.................................................................................................................... 23
2.6(Optional) Fan Installation and Operation ................................................................................ 24
3.0Maintenance....................................................................................................................................... 24
3.1Care And Cleaning ....................................................................................................................... 24
3.1.1Glass Cleaning............................................................................................................................... 24
3.2Ash Removal Using Ash Drawer................................................................................................. 24
3.3Chimney Cleaning......................................................................................................................... 25
3.4Baffle Installation and Brick Notes............................................................................................. 26
3.5 Secondary Air Tube Replacement............................................................................................... 29
4 Troubleshooting..................................................................................................................................... 30
5 Specifications ......................................................................................................................................... 31
OSBURN LIMITED LIFETIME WARRANTY........................................................................................... 32

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1.0 Installation
The Osburn Model 2400 is a freestanding space heater. If used and installed according to this instruction
manual this stove is designed for safe operation. Altering or modifying the unit or the installation without
proper authorization will void the certification, warranty, and safety listing. This may also result in a
safety hazard.
In Canada the CSA B365 Installation Code for Solid Fuel Burning Appliances and Equipment andthe CSA
C22.1 Canadian National Electrical Code are to be followed in the absence of local code requirements. In
the USA the ANSI NFPA 70 National Electrical Code and NFPA 211 Standard for Chimneys, Fireplaces,
Vents and Solid Fuel-Burning Appliances are to be followed in the absence of local code requirements.
In addition to the national installation codes, local building and/or fire officials (or other authorities having
jurisdiction) should be contacted to determine what restrictions and installation requirements might locally
apply.
1.1 General Installation
1. Proper ventilation is required.
2. Do not connect this unit to any air distribution duct.
3. Connect the stove only to a lined masonry chimney conforming to national and local building
codes for use with solid fuel, or to a listed factory built chimney suitable for use with solid fuel.

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1.2 Clearances to combustibles and floor protector
To install your appliance correctly, it is extremely important to respect all clearances to any combustibles
as indicated on your stove’s certification label.
Clearances to combustible materials
(see figure 1.3 to match each letter to a clearance)
CLEARANCES (SINGLE WALL PIPE)
CANADA USA
A 14" (356 mm) 16" (406 mm)
B 17" (432 mm) 18" (457 mm)
C 8" (203 mm) 12" (305 mm)
D 22" (459 mm) 24" (610 mm)
E 29" (737 mm) 30" (762 mm)
F 21" (534 mm) 25" (635 mm)
K 48" (1220 mm) 48" (1220 mm)
L 84" (213 cm) 84" (213 cm)
CLEARANCES (DOUBLE WALL PIPE)
CANADA USA
A 7" (178 mm) 12" (305 mm)
B 15" (381 mm) 17" (432 mm)
C 7" (178 mm) 7" (178 mm)
D 14" (356 mm) 19" (483 mm)
E 27" (586 mm) 29" (737 mm)
F 20" (508 mm) 20" (508 mm)
K 48" (1220 mm) 48" (1220 mm)
L 84" (213 cm) 84" (213 cm)

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FIGURE 1.3 Clearances to combustible materials and floor protection

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Floor protector
If the stove is to be installed on top of a combustible floor, it must be guarded by a non combustible
material as shown on figure 1.3 (see the dotted line area).
FLOOR PROTECTOR*
CANADA USA
G 8’’ (203 mm) – Note 1 N/A (Canada only)
H 8’’ (203 mm) N/A (Canada only)
I 18’’ (457 mm)
From door opening 16’’ (406 mm) From door opening
J N/A (USA only) 8’’ (203 mm)
M 8’’ (203 mm) N/A (Canada only)
N N/A (USA only) Note 2
*Steel with a minimum thickness of 0.015’’ (0.38 mm) or ceramic tiles sealed together with grout. No
protection is required if the unit is installed on a non-combustible floor (ex: concrete).
Note 1 : The floor protection at the back of the stove is limited to the stove’s required clearance if
such clearance is smaller than 8 inches (203 mm).
Note 2 : Only required under the horizontal section of the connector. Must exceed each side of the
connector by at least 2 inches (51 mm).
Reduced clearances using shielding
You may decrease the clearances by installing heat radiation shields between the walls or the ceiling and
the stove. These heat radiation shields must be installed permanently, and can include sheet metal, a rigid
non-combustible sheet or a masonry wall.
Clearances of not less than 1" (25 mm) and not more than 3" (76 mm) between the bottom of the shield and
the floor and not less than 3" (76 mm) between the top of the shield and the ceiling must be respected to
allow vertical air circulation behind the shield. The shield must extend 20" (500 mm) above the stove top
and 18" (450mm) to each side of the stove (see graphic 1).
Following the installation of such a heat radiation shield, the clearances mentioned on the stove
certification plate may be reduced as stated in the following table.

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TYPE OF PROTECTION
Reducing Clearances With
Shielding
Sides and
Rear/Back Top
Sheet metal, a minimum of 0,024" (0,61mm) spaced out at
least 1" (25mm) by non-combustible spacers (see
graphic 2). 67% 50%
Ceramic tiles, or an equivalent non-combustible material on
fire-proof supports spaced out at least 1" (25 mm) by non-
combustible spacers (see graphic 3). 50% 33%
Ceramic tiles, or an equivalent non-combustible material on
fire-proof supports with a minimum of 0,024" (0,61 mm) sheet
metal backing spaced out at least 1" (25 mm) by non-
combustible spacers (see graphic 4)
67% 50%
Brick spaced out at least 1" (25 mm) by non-combustible
spacers (see graphic 5) 50% N/A
Brick with a minimum of 0,024" (0,61 mm) sheet metal
backing spaced out at least 1" (25 mm) by non-combustible
spacers (see graphic 6). 67% N/A

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Graphic 1
A- Minimum clearance required between the appliance and an unshielded combustible ceiling.
B- 20 in. (500 mm) minimum;
C- 1 in. (25 mm) minimum;
D- Between 1 in. and 3 in. (25 mm and 75 mm);
E- 3 in.(75 mm) minimum;
F- 18 in. (457 mm) minimum.
1- Shielding;
2- Non-combustible spacers;
3- Ceiling protector;
4- Combustible wall;
5- Ceiling;
6- Appliance (side view);
7- Appliance (top view).

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Graphic 2
A- 1 in.(25 mm) minimum;
1- Combustible wall;
2- Non-combustible spacers;
3- 0.024’’ (0.61mm) sheet metal.
Graphic 3
A- 1 in. (25 mm) minimum;
1- Combustible wall;
2- Non-combustible spacers;
3- Non-combustible support;
4- Ceramic tile or non-combustible material.
Graphic 4
A- 1 in. (25 mm) minimum;
1- Combustible wall;
2- Non-combustible spacer;
3- 0.024’’ (0.61 mm) thick sheet metal;
4- Non-combustible support;
5- Ceramic tile or non-combustible material.

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Graphic 5
A- 1 in. (25 mm) minimum;
1- Combustible wall;
2- Non-combustible spacers;
3- Brick.
Graphique 6
A- 1 in. (25 mm) minimum;
1- Combustible wall;
2- Non-combustible spacers;
3- 0.024’’ (0.61 mm) thick sheet metal;
4- Brick.

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1.5 Chimney System
1.5.1 Definitions
For clarity, the following definitions should be used with respect to these instructions:
A chimney system consists of the connector off the top of the stove, and a chimney, which joins to the
connector and terminates outside the building envelope.
A chimney can be a masonry chimney (of masonry construction with an inside liner), or a factory built
chimney.
A factory built chimney can be a double walled chimney(two concentric pipes with insulation sometimes
referred to as an insulated solid pack, or an air cooled chimney (three concentric pipes, with insulation
between the first and second pipes, and air between the second and third pipes).
A single walled connector is a single pipe.
A double walled connector has two concentric pipes, no insulation, and is an air cooled connector.
1.5.2 Components
Note: All connector and manufactured chimney components must be Listed Components. Masonry
Chimneys must be Code Complying, and have a listed solid fuel burning liner (of stainless steel or clay
refractory construction).
1.5.2.1 Factory Built Chimney System
The following are the generic components required for a factory built chimney system for residential
installations:
Chimney – in the USA use a 6” diameter (152 mm) listed UL 103 HT chimney system and components
Chimney – in Canada use 6” diameter (152 mm) listed ULC S629 chimney system and components
1.5.2.2 Residential Close Clearances Chimney System
Where lesser clearances are desired, consult your local authority, as regulations may vary regarding the use
of clearance reducing devices. Listed wall and floor shields are available to reduce clearances, and most
building codes provide information on reducing clearances.

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1.5.3 General Installation Requirements
CAUTION:DONOT FILL ANY FRAMED SPACE AROUND THE FACTORY-BUILT CHIMNEY WITH INSULATION OR
ANY OTHER MATERIAL.INSULATION PLACED IN THIS AREA COULD CAUSE ADJACENT COMBUSTIBLES TO
OVERHEAT.
DONOT USEMAKESHIFTCOMPROMISESDURINGINSTALLATIONASTHEYMAYBE SAFETYHAZARDS,ANDAFIRE
COULD RESULT.
DO NOT CONNECT THIS UNIT TO ACHIMNEY SYSTEM SERVING ANOTHER APPLIANCE.
DO NOT CUT RAFTERS OR CEILING JOISTS WITHOUT FIRST CONSULTING ABUILDING OFFICIAL TO ENSURE
STRUCTURAL INTEGRITY IS NOT COMPROMISED.
1.5.3.1 Connectors
The minimum connector diameter is 6" (152 mm). A minimum connector length of 4 ft (1.22 m) is
recommended for best results. Restrictions to stack gas flow (such as using more than two 90oelbows)
should be avoided and any horizontal runs should be kept to a minimum length, especially with short
chimneys. The connector pipe, which joins the unit to the chimney, may be of either single or double
walled construction. Connector pipe should be a minimum of 24-gauge steel.
The connector pipe itself must not pass through any combustibles, nor may it pass through non-
combustibles and into a concealed space (such as an attic, roof space, or closet). If passing through a wall,
ceiling, or into a masonry chimney, use either chimney components listed for that specific use, or means
acceptable to local authorities having jurisdiction over the installation.
Install sections of single wall or double wall connector between the stove and the chimney. Secure all
connector pipe joints with a minimum of three sheet metal screws. All connector and factory built chimney
pipes must be installed with the male or crimped end down to prevent creosote dripping outside the joints.
If non-telescopic sections are to be used, they must be cut to length, allowing for overlap. Use three (3)
screws to attach the connector section to the flue collar of the stove. Listed double walled connectors
should be installed in accordance with the vent manufacturer’s installation instructions.
Figure 1.2 - Joints in Chimney System

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1.5.3.2 Chimney Systems
The minimum chimney size is 6" (152 mm) in diameter. The minimum overall height of the chimney
system, measured from the base of the appliance is 12' (3.66m). Existing masonry and metal chimneys
should be inspected to check for deterioration and to determine if they meet the minimum installation
requirements; they should be upgraded if necessary. In Canada, masonry chimneys must have or useaULC
S635 listed Class III liner in chimney systems that are not ULC S629 listed. Similarly in the USA a UL
1777 listed refractory or metallic liner must be used. At the point of penetration through the roof to the
outside of the building envelope, the chimney must extend at least 3' (914 mm) above the roof and at least
2' (610 mm) above the highest point within an area of 10' (3 m) of the chimney (see Figure 1.3).
Follow CSA Standard B365-M91 for methods and precautions to be employed when connectingthe stove
to a masonry chimney, and for installing thimbles (wall penetration assemblies) when the connection from
the stove to the masonry chimney is made through a combustible wall.
When connecting to a factory built chimney, ensure that it is installed according to the manufacturer's
listed instructions. If using an existing chimney, inspect and clean the chimney if required (this should be
done by a licensed chimney sweep or a qualified professional).
Avoid 90 degree eblows We recommend that you use
two 45 degree elbows instead

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Figure 1.3 – Chimney height
1.5.3.3 Exterior Chimney
Chimneys constructed outside of the home on an exteriorwall should be avoided if possible, especially in
colder climates. Exterior chimneys may not draft well and in fact may down draft (reverse flow) due to the
difficulty in heating them up to operating temperature while trying to evacuate the stack gases. All else
being equal, cooler chimneys will have less draft than hotter ones; this may lead to creosoting and poor
performance. If an exterior chimney is used to remove the stack gases the best results will be obtained by
using a connector vertically off the unit to the highest possible point before elbowing off horizontally to the
chimney. For efficiency and safety reasons the stove must not be installed with an insulated chimney
connected directly to the appliance.
1.5.3.4 Draft
Your Osburn stove will attain its best performance ifinstalled with a chimney systemthat has proper draft.
(Draft is the force that moves air from the appliance up through the chimney and is predominantly affected
by the height and diameter of the chimney, and the stack temperatures of the stove). If you test the draft
using a pressure gauge, the reading should be between .05 - .07 inches of water column (w.c.) at a medium
high fire. (See Table 2.2). Drafts of less than .03" w.c. will cause operation difficulty while too much draft
(greater than .10" w.c.) will result in over-firing of the stove. This can result in excessive operating
temperatures. If this is the case, a manual damper may be installed in the vertical connector pipe to help
reduce excessive draft. In this case, the installation of elbows totaliing no more than 180° (ex.: 2 x 30°
elbows, 2 x 45° elbows or 2 x 90° elbows) can be installed to help reduce excessive draft. If the addition of
elbows is not sufficient, a manual damper can be installed in the vertical flue pipe.

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Figure 1.4 Connections to a Masonry Chimney (Exterior Shown)
1.5.4 Typical Types of Chimney Systems
There are basically two types of chimney systems; one employs an existing masonry chimney, while the
other employs a manufactured or factory built chimney. Ineither system the chimney may be of an interior
or an exterior type. The following illustrations are provided to demonstrate the basic components required
for a proper and safe installation. The components identified may not appear exactly as those purchased –
the manufacturers’ installation instructions and specified clearance distances should always be followed in
accordance with local and national installation codes. In Canada the CSA B365 and the CSA C22.1
installation codes are to be followed. In the USA the ANSI NFPA 70 and ANSI NFPA 211 installation
codes are to be followed.

17
Figure 1.5 Connections to a Factory Built Chimney (Interior Shown)
Figure 1.6 Connection to a Factory Built Chimney (Exterior Shown)

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1.6 Door overlay installation
In order to complete the assembly of your Osburn 2400 wood stove, you need to install the door overlay.
See figure 1 below for installation instructions :
1- Position the overlay on the door frame and fix it in place from behind using the 4 screws.
Note: It is not necessary to remove the glass or any other component to install the overlay.

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2.0 Operation
2.1 Safety Information
1. This stove is designed for safe operation WHEN BURNING CORDWOOD ONLY. Altering or modifying
the unit or installation without proper authorisation will void the certification, warranty, and safety
listing, and may result in a safety hazard.
2. For safety reasons, never leave the unit unattended with the door open or ajar. An open door, and
especially a door partially open or cracked, if left for longer than required for good ignition can
potentially result in unsafe chimney temperatures, and if left unattended in hot embers or ignited
fuel falling out of the unit. Prolonged door open operation is not necessary provided the unit has
been properly installed and dry kindling is used to start the fire.
3. Do not abuse the unit, either by over firing or by using wood or combustibles with salt content, or
harmful chemicals. Misuse is not covered by warranty.
4. Even though your Osburn has been specifically designed and tested to prevent smoke spillage,
always open the door slowly as this will minimise the likelihood of smoke spillage or a back draft
of flame or smoke into the room.
5. Never use gasoline type lantern fuel, kerosene, solvents, charcoal lighter fluid, or inflammable
liquids to start or "freshen" a fire in the stove. Keep all such liquids well away from the stove
while it is in use.
6. All stove surfaces become very hot during operation. Care is needed, especially with children, to
avoid contacting these surfaces.
7. Do not elevate the fire by means of grates.
8. CAUTION:DO NOT OVER FIRE THIS HEATER.Do not burn fuel in the stove at a rate higher than that
which will cause the ember bed level to exceed half the door opening height. If burning hot fires
regularly, purchase a stovetop thermometer, and do not exceed 840oF (450oC) as measured on the
Cook top. If the door handle of the stove becomes excessively hot to the touch, consider this to be
an indication of over firing. Over firing can result in a safety hazard and can permanently damage
the stove and chimney. This damage is not covered by the warranty.
9. Although the ceramic glass is extremely durable under any normal use, a few precautions are
required. Do not attempt to push logs further into the fire by using the door, as the glass may break
if any solid object heavily contacts it.

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10. Never operate the stove with the door open, or cracked slightly open, except briefly during the
lighting operation, and during refuelling. Leaving the door open continuously could seriously
overheat the chimney and adjacent combustibles. Do not operate the stove if there is an abnormal
air leakage into the stove, such as through deteriorated gaskets or cracked or broken glass. Do not
operate the stove without a door gasket. Leakage can result in overheating, or in very airtight
homes, could possibly cause smoking into the room. Smoke may contain carbon monoxide, which
is poisonous, and in sufficient quantities is a health hazard.
2.2 Fuel
1. Fuel for the stove must not be stored closer than the required clearances tocombustibles and not in
the space required for charging and ash removal.
2. Your Osburn stove is designed to burn CORDWOOD FUELONLY. Do not burn coal, charcoal, or trash
in the unit. Highly flammable items such as trash may ignite creosote in the chimney, resulting in a
chimney fire. Never burn salt wood, beach wood, chemically treated wood, or wood removed from
salt water, since the deposits left will deteriorate the firebox. Damage caused by chemicals or salt is
not covered under warranty.
3. Seasoned dense wood is recommended. Wood should be air dried in a covered ventilated area for
six months to a year or more. This reduces the moisture content of the wood, resulting in better
stove performance. Wood species with moisture content of 20% or less are ideal. Dry seasoned
wood can be distinguished from green wood by the checks or cracks in the ends.
4. Wet or green wood will tend to cause the fire to smoulder, producing large amounts of creosote.
Creosote buildup could result in a chimney fire. This wood will also prove difficult to keep
burning properly, and fires will tend to go out. Green wood produces very little heat, and
sometimes causes customers to think that the stove does not work. If you must burn wet wood, use
only small amounts mixed with dry wood.
5. Decayed wood or low-density wood has very little energy content or heating value, and will not
burn satisfactorily for long periods of time.
An example of the energy values of some common wood fuels is given in Table 2.1
For recommended wood sizes, refer to the specifications.
Table 2.1 Common Heating Values of Cordwood
Hardwoods Million Btu/Cord Softwoods Million Btu/Cord
Birch 23.6 Douglas Fir 20.6
White Oak 28.3 Hemlock 17.1
Alder 17.6 Jack Pine 18.4