Osburn 900 User manual

READ AND KEEP THIS MANUAL FOR REFERENCE
45449A
01/06/2010
OWNER’S MANUAL
US ENVIRONMENTAL PROTECTION
AGENCY PHASE II CERTIFIED
WOOD STOVE
Verified and tested following
ULC S627 and UL 1482 Standards
by:
Stove Builder International Inc.
250, rue de Copenhague,
St-Augustin-de-Desmaures (Quebec)
CANADA G3A 2H3
900E.P.A. WOOD STOVE

1
INTRODUCTION
Stove Builder International, one of the most important wood stove and fireplace
manufacturers in North America, congratulates you on your purchase and wishes to help
you get maximum satisfaction from your 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 pertaining to the installation of your wood stove in North America comply
with ULC-S627 and 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
installation requirements in your area and the need to obtain a permit.
KEEP THIS INSTRUCTION MANUAL FOR FUTURE REFERENCE.
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 THESTOVE UNATTENDED WHEN THE DOOR ISSLIGHTLY OPENED DURINGIGNITION.
DO NOT BURN WASTE,FLAMMABLE FLUID SUCH AS GASOLINE,NAPHTHA,OR MOTOR OIL.
DO NOT CONNECT TO ANY AIR DISTRIBUTION DUCT OR SYSTEM.
ALWAYS CLOSE THE DOOR AFTER IGNITION.
DO NOT INSTALL IN A MOBILE HOME
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
www.osburn-mfg.com
Registering your warranty online will help us track
rapidly the information we need on your stove.

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TABLE OF CONTENTS
SECTION 1.0 - INSTALLATION ..................................................................................................3
1.1 GENERAL INSTALLATION...................................................................................... 3
1.2 POSITIONING THE STOVE...................................................................................... 4
1.3 CLEARANCES TO COMBUSTIBLES AND FLOOR PROTECTOR......................... 4
SECTION 2.0 CHIMNEY (FLUE SYSTEM)...............................................................................10
2.1 DEFINITIONS.......................................................................................................... 10
2.2 CHIMNEY................................................................................................................ 10
2.2.1 Step by step installation of your factory-built chimney................................... 12
2.2.2 Typical installation through an existing masonry chimney............................. 21
2.3 CHIMNEY CONNECTOR........................................................................................ 24
2.4 DRAFT .................................................................................................................... 26
2.5 OUTSIDE COMBUSTION AIR................................................................................ 26
2.6 THE ADVANTAGE OF INSTALLING A BLOWER (FAN)....................................... 27
SECTION 3.0 OPERATION .......................................................................................................28
3.1 SAFETY INFORMATION ........................................................................................ 28
3.2 FUEL....................................................................................................................... 30
3.2.1 The use of manufactured logs....................................................................... 31
3.2.2 Simple wood moisture test ............................................................................ 32
3.3 NOTES ABOUT FIRST FIRING.............................................................................. 32
3.4 LIGHTING A FIRE................................................................................................... 32
3.5 MAINTAINING THE FIRE........................................................................................ 33
3.6 FAN (BLOWER) OPERATION................................................................................ 34
SECTION 4.0 MAINTENANCE ..................................................................................................35
4.1 CLEANING AND PAINTING YOUR STOVE........................................................... 35
4.2 GLASS .................................................................................................................... 35
4.3 GASKETING ........................................................................................................... 36
4.4 ASH REMOVAL ...................................................................................................... 36
4.5 CHIMNEY (FLUE) CLEANING................................................................................ 36
4.6 DEALING WITH A CHIMNEY FIRE ........................................................................ 37
SECTION 5.0 FEATURES .........................................................................................................38
5.1 OSBURN 900 STOVE............................................................................................. 38
OSBURN LIMITED LIFETIME WARRANTY..............................................................................39

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SECTION 1.0 - INSTALLATION
When installed and operated as described in these instructions, the E.P.A Osburn 900
wood stove is suitable for use as a freestanding wood stove in residential installations.The
E.P.A Osburn 900 wood stove is not intended for installation in a bedroom or a mobile
home.
In Canada, the CSA B365 Installation Code for Solid Fuel Burning Appliances and
Equipment and the CSA C22.1 Canadian National Electrical Code are to be followedin 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 and/or local building codes, fire officials (or other
authorities having jurisdiction) should be contacted to determine what restrictions and
installation requirements might apply locally.
1.1 GENERAL INSTALLATION
CAUTIONS:
MIXING OF APPLIANCE OR FLUE SYSTEM COMPONENTS FROM DIFFERENT SOURCES OR MODIFYING
THE DIMENSIONAL SPECIFICATION OF COMPONENTS MAY RESULT IN HAZARDOUS CONDITIONS.
WHERE SUCHACTION IS CONSIDERED,THEMANUFACTURERSHOULDBECONSULTEDINTHEFIRST
INSTANCE.
DO NOT CONNECT THIS UNIT TO ANY AIR DISTRIBUTION SYSTEM.
CRACKED AND BROKEN COMPONENTS,e.g. GLASS PANELS OR CERAMIC TILES,MAY RENDER
THIS INSTALLATION UNSAFE.
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.
DO NOT INSTALL IN A MOBILE HOME.
WARNINGS:
ASOURCE OF FRESH AIR INTO THE ROOM OR SPACE HEATED SHALL BE PROVIDED WHEN
REQUIRED.

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1.2 POSITIONING THE STOVE
It is very important to position the wood stove in an area that will favour the most efficient
heat distribution throughout the house. The stove should therefore be installed in theroom
where the most time is spent, and in the most spacious room possible. Recall that wood
stoves produce radiating heat, the heat we feel when we are close to a wood stove. A
wood stove also functions by convection, that is through the displacement of hot air
accelerated upwards and its replacement with cooler air at the floor level. The stove’s
convection effect is facilitated by the installation of a blower.
1.3 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
15" (380 mm)
15" (380 mm)
B
18" (455 mm)
18" (455 mm)
C
7" (180 mm)
7" (180 mm)
D
17.5" (445 mm)
17.5" (445 mm)
E
25.5" (650 mm)
25.5" (650 mm)
F
15" (380 mm)
15" (380 mm)
K
48’’ (1219 mm)
48’’ (1219 mm)
L
84’’ (2134 mm)
84’’ (2134 mm)
CLEARANCES (DOUBLE WALL PIPE)
CANADA
USA
A
15" (380 mm)
15" (380 mm)
B
18" (455 mm)
18" (455 mm)
C
7" (180 mm)
7" (180 mm)
D
17.5" (445 mm)
17.5" (445 mm)
E
25.5" (650 mm)
25.5" (650 mm)
F
15" (380 mm)
15" (380 mm)
K
48’’ (1219 mm)
48’’ (1219 mm)
L
84’’ (2134 mm)
84’’ (2134 mm)

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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 wallsor
the ceiling and the stove. These heat radiation shields mustbe 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
Graphic 1

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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).
__________________________________________________________________
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.
__________________________________________________________________

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__________________________________________________________________
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.
__________________________________________________________________
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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SECTION 2.0 CHIMNEY (FLUE SYSTEM)
2.1 DEFINITIONS
For clarity, the following definitions should be used with respect to these instructions:
A chimney system consists of a connector off the top of the stove, and a
chimney, which attaches to the connector and terminates outside the house.
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 wall chimney (two concentric pipes with
insulation - sometimes referred to as an insulated solid pack) or an air cooled
chimney (three concentric pipes, withinsulation betweenthefirstand secondpipes,
and air between the second and third pipes).
A single wall connector is a single pipe.
A double wall connector has two concentric pipes, no insulation, and is an air
cooled connector.
2.2 CHIMNEY
CAUTIONS:
DO NOT FILL ANY FRAMED SPACE AROUND THE FACTORY-BUILT CHIMNEY
WITH INSULATION OR ANYOTHER MATERIAL. INSULATION PLACEDIN THIS
AREA COULD CAUSE ADJACENT COMBUSTIBLES TO OVERHEAT.
DO NOT USE MAKESHIFT COMPROMISES DURING INSTALLATION AS THEY
MAY BE SAFETY HAZARDS, AND A FIRE COULD RESULT.
DO NOT CONNECT THIS UNIT TO A CHIMNEY SYSTEM SERVING ANOTHER
APPLIANCE.
DO NOT CUT RAFTERS OR CEILING JOISTS WITHOUTFIRST CONSULTINGA
BUILDING OFFICIAL TO ENSURE STRUCTURAL INTEGRITY IS NOT
COMPROMISED.

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Your wood stove may be hooked up with a factory built or masonry chimney. If you are
using a factory built chimney, it must comply with UL103 (USA) or ULCS629 (Canada)
standards. It must therefore be a 6” (152mm) HT Type (2100°F) chimney. It is extremely
important that it be installed according to the manufacturer's specifications. The
manufacturers’ installation instructions and specified clearances 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.
If you are using a masonry chimney, it is important that it be built in compliance with the
specifications of the Building Code. It must be lined with fire clay bricks, or clay tiles,
sealed together with fire cement, or have a listed solid fuel burning stainless steel liner.
Round chimneys are the most efficient.
The interior diameter of the chimney should be identical to the stove's smoke exhaust. A
chimney which is too small may cause draft problems, since it may not have the required
volume to properly evacuate the quantity of smoke resulting from the combustion. A
chimney which is too large may also cause draft problems. In fact, a large chimney will be
harder to warm-up and may not reach high enough temperatures to create a proper draft
effect. Note that it is the chimney which creates the draft effect, not your stove.
Your stove's performance is therefore directlydependent on an adequate draft from
your chimney.
The following recommendations may be useful for the installation of your chimney:
Do not connect your stove to a chimney serving another appliance.
The chimney must rise above the roof at least 3' (0.9 mm) from the uppermost point
of contact. See Figure 2.2.
The chimney must exceed any part of the building or other obstruction within a 10'
(3.04 m) distance by a height of at least 2' (0.6 m). See Figure 2.2.
The minimum overall height of the chimney system, measured fromthe stovetop to
the exterior termination cap of the chimney should be at least 12' (3.66m). A
chimney which is too short may lack the “tunnel effect” required to obtain a proper
draft.
Installation of an interior chimney is always preferable to an exterior chimney.
Chimneys constructed outside of the home on an exterior wall should be avoided if
possible, especially in colder climates. The gas which circulates into an interior
chimney willcool more slowly, thus reducing the build-up of creosote and the risk of
flue fires.
All else being equal, cooler chimneys will have less draft than hotter ones. This
problem will be amplified if the chimney is excessively long. A chimney which is
excessively long may be very hard to warm-up due to its higher volume. A cool
chimney may even down draft (reverse flow) due to the difficulty in heating it up to
operating temperature while trying to evacuate the stack gases.

12
If an exterior chimney is used, the best results willbe obtained byusingaconnector
verticallyoff the unit to the highest possible point before elbowing off horizontally to
the exterior chimney. For efficiency and safety reasons the stove must not be
installed with an insulated chimney connected directly to the appliance.
Using a fire screen at the extremity of the chimney requires regular inspection in
order to insure that it is not obstructed, thus blocking the draft. It should be cleaned
when necessary.
FIGURE 2.2 Minimum Height of the Chimney
2.2.1 Step by step installation of your factory-built chimney
The way to install your chimney may vary from one chimney manufacturer to another. The
instructions contained in this manual are based on the recommendations of chimney
manufacturerswhose productsaresoldatmanyNorthAmericanretailersofwoodstovesand
related heating accessories.

13
Wall support system
If your chimney must rise along an outside wall, you need to connect it to yourstove through
an adjacent wall. For this type of installation, the following items are normally required :
Chimney
Suitable lengths of chimney (enough to go up to your roof)
An adjustable wall support
A wall thimble
An adequatenumberof wall bands(oneforevery8 feetofchimney,excludingtheroof
portion)
A stove pipe adapter
One insulated tee & plug
A roof flashing kit (if necessary)
A chimney cap.
Roof guys (if required)
Stove pipe
An adequate number of stove pipe sections.
A 90o elbow
Typical installation through the wall
FIGURE 2.2.1 (A) Typical installation through the wall

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1- Start by positioning your stove where you would like it to go, taking into account the
minimum clearances to combustible material. You will then be able to determine
where the chimney will pass through the wall. You will probably have to adjust the
stoveposition slightlytoensurethat yourchimneywillrunbetweenthestuds. Youcan
use a stud finder to locate the studs. Use a spoke saw or jig saw to cut a hole,
remembering that you need to maintain a clearance of 2inchesbetween thechimney
and any combustible materials. For concrete walls, cut a hole slightlylargerthan the
outer diameter of the chimney.
2- Oncethe openingcompleted,youneed toframeintheareatoallowfortheinstallation
of a wallthimble. A wall thimble is not required forinstallationsthroughconcretewalls.
3- Youmust first secure thewallthimble intothe exteriorwallsurface.Then,dothesame
inside and fasten the trim plate.

15
4- Then, from outside the building, slide a short chimney length (attached to the tee)
through the wall thimble. The chimney must extend at least 3 inches into the living
space where it attaches to the stove pipe.
5- You can now install the wall support. Simply slide the wall support up to the tee,
ensuring that the adapter on the support engages with the female coupler on the
bottom of thetee. When the wallsupport islevelandproperlypositioned,youcanuse
lag bolts to secure it into the wall studs. To complete the installation, install an
insulated tee plug below the wall support.
6- You can start to add chimney sections. We recommend that you also use locking
bands to secure all connections. You will need to secure the chimney to the house
using wall bands. Wall bands wrap around the chimney and then attach to the wall.
Installthe first one3feetabove thewallsupport. Then,youwillneedanotherbandfor
each 8 feet of chimney. Note: if your chimney must be installed through your
soffit, install a roof flashing above and finishing plate below where the roof is
cut. Consult the following section called “CEILING SUPPORT SYSTEM” for
more details.

16
7- Authorities require that the chimney extend not less than 3 feet above the highest
point where it passes through the roof of a building and not less than 2 feetabove any
portion of the building within 10 feet. If the chimney extends more than 5 feet above
the roof deck, roof guys with telescoping legs and draw bands are required.
8- Finally, twist on your rain cap and you can head back inside.
9- You are now ready to connect your chimney to your stove. Simply install the inter-
connecting stove pipe between the stove pipe adapterand the stove. You can follow
theinstructionsinthe followingsection (section2.3)ofthismanualcalled« CHIMNEY
CONNECTOR».

17
Ceiling support system
If your chimney must rise inside the house and go through the ceiling, you need to
connect it to your stove at the ceiling level. For this type of installation, the following items
are normally required :
Chimney
An adequate number of chimney sections (enough to go up to your roof)
A ceiling support kit with stove pipe adapter
An attic insulation shield
A roof flashing kit
A chimney cap
Roof guys (if necessary)
Stove pipe
Suitable lengths of stove pipe
Typical installation through the ceiling
FIGURE 2.2.1 (B) Typical Installation Through the Ceiling

18
1. Place your stove where you would like it located and use a plumb line to mark the
ceiling directly above your stove flue. You will probably have to adjust this position
slightly to ensure that your chimney will run between the joists. You can use a stud
findertolocatethe joists.You alsoneed to takeintoaccounttheminimumclearances
to combustible materials. After you have determined where the chimney will go
through the ceiling, use a spoke sawor power jig saw tocut a hole, rememberingthat
you need a minimum 2-inch clearance between the chimney and any combustible
materials. Dependingonwhetheryou havea oneortwostorystructure,youwillneed
to cut a matching hole through the floor of the attic or second floor living space.
2. Before you install the ceiling support, you need to frame the area.
3. To install the ceiling support, just slide the assembly into the framed opening from
below. Once you ensure that the finishing plate is flush with the underside of the
ceiling and assembly is level, secure it with screws.

19
4. Once the support is secure, you can begin to assemble the chimney by lowering the
first section intothe support. Make surethat the male coupler is pointing upwards, as
indicated by the arrow on the chimney label.
5. Then, from beneath the support, insert the stove pipe adapter and twist-lock it into
place.
6. Now,you canadd additionalchimneysections.Continueaddingchimneylengthsuntil
a height of about 2 feet belowthe next ceiling level. An attic insulation shield must be
installed whereachimneypassesfromalowerlivingspaceintoanupperlivingspace
or attic space. It is designed to keep insulation materials away from the chimney. A
second attic insulation shield must be installed if your chimney passes from a lower
living space into an upper living space. As wee, you must enclose all sections of the
chimney where is passes through a living space. Elbows (15oor 30o) are used when
you needtooffsetyourchimneytoclearanobstruction ortoavoid havingtocutjoists.
7. Once youhave cut throughyourroof and framedthe joists,it istime toworkoutdoors.
Authorities require that the chimney extend not less than 3 feet above the highest
point where it passes through the roof of a building and not less that 2 feet above any
portion of the building within 10 feet. You will need to install a roof flashing. The roof