Osburn 3300 User manual

READ AND KEEP THIS MANUAL FOR REFERENCE
Printed in Canada 46131_IA
OSBURN 3300
(OB03300 model)
Wood Stove
Owner's Manual
Part 2 of 2
INSTALLATION AND OPERATION
REQUIREMENTS
MOBILE
HOME
Safety tested according to CAN/ULC
S627, UL 1482 and UL 737 standards
by an accredited laboratory.
US Environmental Protection Agency
phase II certified wood stove compliant
with 2020 cord wood standard
CONTACT LOCAL BUILDING OR FIRE OFFICIALS ABOUT RESTRICTIONS AND INSTALLATION INSPECTION REQUIREMENTS
IN LOCAL AREA.
READ THIS ENTIRE MANUAL BEFORE INSTALLATION AND USE OF THIS WOOD STOVE. FAILURE TO FOLLOW THESE
INSTRUCTIONS COULD RESULT IN PROPERTY DAMAGE, BODILY INJURY OR EVEN DEATH.
ENGLISH
2023-03-28

ONLINE WARRANTY REGISTRATION
If the unit requires repairs during the warranty period, proof of purchase must be provided.
The purchase invoice must be kept. The date indicated on it establishes the warranty period.
If it can not be provided, the warranty period will be determined by the date of manufacture of the
product. It is also highly recommended to register the warranty online at
https://www.osburn-mfg.com/en/warranty/warranty-registration/
Registering the warranty will help to quickly nd the information needed on the unit.
Dealer:
Installer:
Phone Number:
Serial Number:

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TABLE OF CONTENTS
1. CERTIFICATION PLATE .......................................................................................................... 4
2. General Information ................................................................................................................ 6
2.1 Performances..................................................................................................................... 6
2.2 Specifications..................................................................................................................... 7
2.3 Dimensions ........................................................................................................................ 8
2.4 EPA Loading Procedure .....................................................................................................11
3. Clearances to Combustible Material.................................................................................... 15
3.1 Clearances........................................................................................................................15
4. Floor Protection .................................................................................................................... 22
5. Reducing Wall and Ceiling Clearances Safely .................................................................... 23
5.1 Shield Construction Rules ..................................................................................................23
6. Installation of options on your product................................................................................ 26
6.1 Legs Installation ................................................................................................................26
6.2 Pedestal Installation...........................................................................................................29
6.3 Door Overlay Installation ....................................................................................................31
6.4 Decorative Panels..............................................................................................................32
6.5 Optional Fresh Air Intake Kit Installation ..............................................................................33
6.6 Optional Fire Screen Installation ........................................................................................34
6.7 Optional Blower and Thermodisc Installation .......................................................................35
6.8 Air Tubes And Baffle Installation..........................................................................................36
6.9 Mobile Home Installation ....................................................................................................38
7. Maintenance/Parts Replacement......................................................................................... 39
7.1 Replacement.....................................................................................................................39
7.2 Gasket..............................................................................................................................40
7.3 Door .................................................................................................................................40
8. Exploded Diagram and Parts List ........................................................................................ 43
OSBURN LIMITED LIFETIME WARRANTY................................................................................ 46

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1. CERTIFICATION PLATE

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Installation and Operation Requirements - Osburn 3300
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2. General Information
2.1 Performances
Values are as measured per test method, except for the recommended heating area, firebox volume,
maximum burn time and maximum heat output.
Model OSBURN 3300 (OB03300)
Type of combustion Non-catalytic
Fuel Type Dry Cordwood
Recommended heating area (sq. ft..)1 900 to 2,300 ft2(83.6 to 213.7 m2)
Overall firebox volume23.4 ft3(0.096 m3)
EPA loading volume 2.67 ft3(0.056 m3)
Maximum burn time110 hours
Maximum heat output (dry cordwood)3 90,000 BTU/h (26.4 kW)
Overall heat output rate (min. to max.)2 4 15,841 BTU/h to 57,041 BTU/h
(4.64 kW to 16.72 kW)
Average overall efficiency3
(Dry cordwood) 71.1 % (HHV)5 76.6 % (LVH)6
Optimum overall efficiency7 78 %
Optimum heat transfer efficiency8 74 %
Average particulate emissions rate9 0.95 g/h (EPA / CSA B415.1-10)10
Average CO11 61.3 g/h
1Recommended heating area and maximum burn time may vary subject to location in home, chimney draft,heat loss factors, climate, fuel type
and other variables. The recommended heated area for a given appliance is dened by the manufacturer as its capacity to maintain a minimum
acceptable temperature in the designated area in case of a power failure.
2The overall rebox calculation is an approximation and is not intended to be used for loading. This volume includes a buffer zone to allow an easier
fuel insertion, prevent ash spillage and allow the air wash to work properly.
3The maximum heat output (dry cordwood) is based on a loading density varying between 15 lb/ft3and 20 lb/ft3. Other performances are based on
a fuel load prescribed by the standard. The specied loading density varies between 7 lb/ft³ and 12 lb/ft3. The moisture content is between 19%
and 25%.
4As measured per CSA B415.1-10 stack loss method.
5Higher Heating Value of the fuel.
6Lower Heating Value of the fuel.
7Optimum overall efciency at a specic burn rate (LHV).
8The optimum heat transfer efciency is for the low burn rate and represents the appliance's ability to convert the energy contained in the wood logs
into energy transferred to the room in the form of heat and does not take into account the chemical losses during combustion.
9This appliance is ofcially tested and certied by an independent agency.
10 Tested and certied in compliance with CFR 40 part 60, subpart AAA, section 60.534(a)(1(ii) and draft ASTM WK47329-14.
11 Carbon monoxide.

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2.2 Specifications
Recommended log length 16 in (406 mm) east-west
Maximum log length1 20 in (508 mm) east-west
Flue outlet diameter 6 in (150 mm)
Recommended connector pipe diameter 6 in (150 mm)
Type of chimney ULC-S629, UL 103 HT (2100 °F)
Minimum chimney height 12 feet
Baffle material C-Cast or equivalent
Approved for alcove installation Yes
Approved for mobile home installation2 Yes
Type of door Simple, glass with cast iron frame
Type of glass Ceramic glass
Blower Optional (up to 130 CFM)
Particulate emission standard3 EPA / CSA B415.1-10
USA standard (Safety) UL 1482, UL 737
Canada standard (Safety) CAN/ULC-S627
1North-south: ends of the logs visible, East-west: sides of the logs visible.
2 Mobile homes (Canada) or manufactured homes (USA): The US Department of Housing and Urban Development describes “manufactured homes”
better known as “mobile homes” as follows; buildings built on xed wheels and those transported on temporary wheels/axles and set on a permanent
foundation. In Canada, a mobile home is a dwelling for which the manufacture and assembly of each component is completed or substantially
completed prior to being moved to a site for installation on a foundation and connection to service facilities and which conforms to the CAN/CSA-
Z240 MH standard.
3Tested and certied in compliance with CFR 40 part 60, subpart AAA, section 60.534(a)(1(ii) and draft ASTM WK47329-14.

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2.3 Dimensions
2.3.1 Stove Dimensions with legs
24 1/4"
616mm
12 1/8"
308mm
6 5/8"
167mm
Ø
6"
153mm
Figure 1: Top View
23 1/2"
598mm
24"
609mm
11 5/8"
295mm
14 1/2"
368mm
12 1/8"
309mm
25 1/8"
640mm
9 7/8"
251mm
31 1/4"
794mm 32 1/4"
819mm
25 1/8"
638mm
27"
686mm
30 3/8"
772mm
18 1/2"
471mm
30 7/8"
783mm
Figure 2: Front View Figure 3: Side View

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2.3.2 Stove Dimensions with pedestal
Figure 4: Front View Figure 5: Side View

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2.3.3 Combustion Chamber Dimensions
16"
406mm
12"
305mm
Figure 6: Door Opening
19"
481mm 21"
535mm
14 1/8"
359mm
5/16"
8mm
3/16"
5mm
Figure 7: Front View - Combustion Chamber Figure 8: Side View - Combustion Chamber

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2.4 EPA Loading Procedure
The best loading method for efficient and clean combustion with this fireplace is the EPA loading
method. The images below show the space in the firebox where the logs are to be placed. It is
important to always respect this space and not to put logs in the grid area marked with an X.
The marked area is defined by the space between the glass and primary air channel. Leave
enough space between the logs for good air circulation. Using more than the usable firebox
volume for loading wood will result in poor combustion. The Usable firebox volume of 2.67 ft³
shown below is the one used during EPA emissions certification. The log length recommended
for this stove is 16 inches and the EPA testing were done with log length of 16 in. The fuel
specie used for the EPA certification was beech.
2.4.1 Air control
The air control is located underneath the ash shelf. To open the
air control, pull the air control handle completely to the left (High).
This will increase the burn rate. To close the air control, push
the air control handle completely to the right. This will permit to
achieve the lowest possible burn rate.
2.4.2 High burn rate (primary air control open)
For Kindling and Start-up fuel configuration refer to the pictures below. Split the start-up fuel log
into 8 pieces. Crisscross at 45 degrees the 8 pieces on the brick on 3 rows (From the bottom,
first row 3 pieces-second row 3 pieces - third row 2 pieces) and leaving some space between
each wood pieces. Crisscross at 45 degrees the kindling on the top of the start-up fuel on
3 rows. The kindling is made of between 10-12 small pieces that are about 10% of moisture
content. Place newspaper sheets on top of the kindling. Light up the paper and let the door
at 90 degrees between one minute and one minute and 30 seconds, then close the door. Air
control is fully open.
X
X
X
X
X
X
X
X
X
Figure 9: Start-up fuel Figure 10: Kindling Figure 11: Newspaper
When there are only faint flames remaining and most of the wood is turned into coal, break
ashes and level coal bed. Close the door.
Add High Fire load in an East-West configuration. Place the first two logs at the back of the
firebox, facing east-west, one on top of the other. Leave approximately 3 inches of air space
between the rear firebrick and the first log. See Figures 12 and 13 for an example load for
maximum burn rate inside the combustion chamber (illustrative only). Then, place 2 logs in the

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middle and 2 logs in front of the combustion chamber, one on top of the other (6 logs in total).
Leave one inch between log columns. Leave the door open at 90 degrees between one minute
and one minute and 30 seconds. Close the door, start the fan at maximum speed and let it burn
until the weight hits the target.
X
X
X
X
Figure 12: Position of the bottom
pieces (High burn)
Figure 13: Position of the top pieces
(High burn)
For optimal loading of a high fire, take small size fuel pieces (between 2- and 3-inches cross
section dimensions approximately) in the back of the firebox and use medium to large size fuel
pieces (3.5 to 4.5 inches of cross section dimensions approximately) in front of the firebox.
2.4.3 Low burn rate
After the high fire, if there is visible yellow flame, close the air control. When the charcoal bed
weight is between 14 and 17% of the low fire load weight, turn off the blower, open the door,
stir the coals slightly, just enough to have a level plane coal bed, and let the door remain slightly
open for 1 minute before loading the low burn test fuel.
For the loading, place the first two logs at the back of the firebox, facing east-west, one on top
of the other. Leave approximately 3 inches of air space between the rear firebrick and the first
log. See Figures 14 and 15 for an example load for maximum burn rate inside the combustion
chamber (illustrative only). Then, place 2 logs in the middle and 2 logs in front of the combustion
chamber, one on top of the other (6 logs in total). Leave one inch between log columns.
For optimal loading of a low fire load, take small size fuel pieces (between 2- and 3-inches cross
section dimensions approximately) in the back of the firebox and use medium to large size fuel
pieces (3.5 to 4.5 inches of cross section dimensions approximately) in front of the firebox.

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X
X
X
X
Figure 14: Position of the bottom
pieces (Low burn)
Figure 15: Position of the top pieces
(Low burn)
Let the door ajar at 90° until the flames roll on top of the fuel (between 2:00 and 4:00 minutes)
and then close the door with the primary air control open. See picture below for rolling flame:
Close the primary air control by small increments (ex: 1/16 of an inch), from ½’’ to fully closed,
between 4 and 15 minutes after the loading period. Before closing further, make sure the flame
intensity is increasing or stable. Close the air control completely. Turn ON the blower at minimum
speed after 30 minutes.
2.4.4 Medium burn rate
After the high fire, if there is visible yellow flame, close the air control. When the charcoal bed
weight is between 14 and 17% of the medium fire load weight, turn off the blower, open the
door, stir the coals slightly, just enough to have a level plane coal bed, and let the door remain
slightly open for 1 minute before loading the medium burn test fuel.
For the loading, place the first two logs at the back of the firebox, facing east-west, one on top
of the other. Leave approximately 3 inches of air space between the rear firebrick and the first
log. See Figures 16 and 17 for an example load for maximum burn rate inside the combustion
chamber (illustrative only). Then, place 2 logs in the middle and 2 logs in front of the combustion
chamber, one on top of the other (6 logs in total). Leave one inch between log columns.
For optimal medium fire load,take small size fuel pieces (between 2- and 3-inches cross section
dimensions approximately) in the back of the firebox and use medium to large size fuel pieces
(3.5 to 4.5 inches of cross section dimensions approximately) in front of the firebox.

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X
X
X
X
Figure 16: Position of the bottom
pieces (Medium burn)
Figure 17: Position of the top pieces
(Medium burn)
Let the door ajar at 90° until the flames roll on top of the fuel (between 2:30 and 5:00) and then
close the door with the primary air control open. See picture below for rolling flame:
Close the primary air control by small increments (ex: 1/16 of an inch) until reaching 1/4in before
closed position, between 4 and 15 minutes after the loading period. Before closing further, make
sure the flame intensity is increasing or stable. Turn ON the blower at minimum speed after 30
minutes.

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3. Clearances to Combustible Material
The clearances shown in this section have been determined by tests according to procedures set
out in safety standards CAN/ULC S627 (Canada), UL 1482 (U.S.A.) and UL 737 (U.S.A.). When
the stove is installed so that its surfaces are at or beyond the minimum clearances specified,
combustible surfaces will not overheat under normal and even abnormal operating conditions.
No part of the stove or flue pipe may be located closer to combustibles than the minimum
clearance figures given.
Clearances may only be reduced by means approved by the regulatory authority.
The clearances to combustible walls may be slightly different in Canada and the U.S.A. and may
also differ depending on whether single or double wall flue pipe is used. Make sure to choose
the correct clearance for the stove location and type of flue pipe.
The clearances of the appliance and the flue pipes must be met individually, meaning the appliance
cannot be installed closer to the combustible materials than the single or double wall pipe allows.
For a safe way to reduce clearances refer to section"5. Reducing Wall and Ceiling Clearances Safely"
of this manual.
3.1 Clearances
APPLIANCE CLEARANCES WITH SINGLE
WALL PIPE CONNECTOR
APPLIANCE CLEARANCES WITH DOUBLE
WALL PIPE CONNECTOR
Canada USA Canada USA
A14 ½" (368 mm) 14 ½" (368 mm) A6" (152 mm) 6" (152 mm)
B12" (305 mm) 12" (305 mm) B12" (305 mm) 12" (305 mm)
C10" (254 mm) 10" (254 mm) C8" (203 mm) 8" (203 mm)
If the above clearances are met, then the distances measured from the flue outlet will be:
DISTANCES1FROM PIPE CONNECTOR
WITH SINGLE WALL PIPE CONNECTOR
DISTANCES1FROM PIPE CONNECTOR
WITH DOUBLE WALL PIPE CONNECTORE
Canada USA Canada USA
D18" (457 mm) 18" (457 mm) D9 ½" (241 mm) 9 ½" (241 mm)
E20 ¾" (527 mm) 20 ¾" (527 mm) E20 ¾" (527 mm) 20 ¾" (527 mm)
F19 ¾" (502 mm) 19 ¾" (502 mm) F17 ¾" (451 mm) 17 ¾" (451 mm)
1The pipe distances listed in this table refer to the distances obtained when the stove is installed in accordance with the appliance clearances above
mentioned.

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A
B
E
D
CAN
48"
122 cm
US
36"
92 cm
48"
Flush
F
FC
Figure 18: Clearances - Top Figure 19: Clearances - Corner
84"
213 cm
Ve
Ho
N
Figure 20: Clearances - Side

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3.1.1 With Heat Shield AC027621
To reduce the clearances of an appliance using a single wall pipe connector, the use of a heat
shield certified with the single wall pipe connector to be used as close as 6" from combustible
materials must be used. Only in this case, the same clearances as a certified double wall pipe
connector can be used. Refer to the booklet in the screen options to obtain the dimensions to
be respected.
APPLIANCE CLEARANCES WITH DOUBLE
WALL PIPE CONNECTOR
DISTANCES2FROM DOUBLE WALL
PIPE CONNECTOR
Canada USA Canada USA
A3" (76 mm) 3" (76 mm) D6 ½" (165 mm) 6 ½" (165 mm)
B3" (76 mm) 3" (76 mm) E11 ¾" (298 mm) 11 ¾" (298 mm)
C3" (76 mm) 3" (76 mm) F12 ¾" (324 mm) 12 ¾" (324 mm)
A
B
E
D
CAN
48"
122 cm
US
36"
92 cm
48"
Flush
F
FC
If the clearance reduction is on the same side as the door handle, position the stove at
a minimum of 6 inches from the side wall (clearance B), otherwise it may be located at
the clearance shown in the table above.
1 Note that to reduce the clearances of an appliance using a single wall pipe connector, the use of a heat shield certied with the single wall pipe
connector to be used as close as 6" from combustible materials must be used. Only in this case, the same clearances as a certied double wall
pipe connector can be used.
2The pipe distances listed in this table refer to the distances obtained when the stove is installed in accordance with the appliance clearances above
mentioned.

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3.1.2 With Lowered Ceiling
APPLIANCE CLEARANCES WITH SINGLE
WALL PIPE CONNECTOR
Canada USA
A14 ½" (368 mm) 14 ½" (368 mm)
B15" (381 mm) 15" (381 mm)
C12" (305 mm) 12" (305 mm)
L70" (1778 mm) 70" (1778 mm)
Ve
Ho
L
APPLIANCE CLEARANCES WITH DOUBLE
WALL PIPE CONNECTOR
Canada USA
A8" (203 mm) 8" (203 mm)
B14" (356 mm) 14" (356 mm)
C10" (254 mm) 10" (254 mm)
L70" (1778 mm) 70" (1778 mm)
If the above clearances are met, then the distances measured from the flue outlet will be:
DISTANCES1FROM PIPE CONNECTOR
WITH SINGLE WALL PIPE CONNECTOR
DISTANCES1FROM PIPE CONNECTOR
WITH DOUBLE WALL PIPE CONNECTOR
Canada USA Canada USA
D18" (457 mm) 18" (457 mm) D11 ½" (292 mm) 11 ½" (292 mm)
E23 ¾" (603 mm) 23 ¾" (603 mm) E22 ¾" (578 mm) 22 ¾" (578 mm)
F21 ¾" (552 mm) 21 ¾" (552 mm) F19 ¾" (502 mm) 19 ¾" (502 mm)
1The pipe distances listed in this table refer to the distances obtained when the stove is installed in accordance with the appliance clearances above
mentioned.

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3.1.3 With Heat Shield AC02762 and Lowered Ceiling
To reduce the clearances of an appliance using a single wall pipe connector, the use of a heat
shield certified with the single wall pipe connector to be used as close as 6" from combustible
materials must be used. Only in this case, the same clearances as a certified double wall pipe
connector can be used. Refer to the booklet in the screen options to obtain the dimensions to
be respected.
APPLIANCE CLEARANCES WITH DOUBLE
WALL PIPE CONNECTOR
Canada USA
A5" (127 mm) 5" (127 mm)
B3" (76 mm) 3" (76 mm)
C3 ½" (89 mm) 3 ½" (89 mm)
L73" (1854 mm) 73" (1854 mm)
Ve
Ho
L
DISTANCES1FROM PIPE CONNECTOR
WITH DOUBLE WALL PIPE CONNECTOR
Canada USA
D8 ½" (216 mm) 8 ½" (216 mm)
E11 ¾" (298 mm) 11 ¾" (298 mm)
F13 ¼" (337 mm) 13 ¼" (337 mm)
A
B
E
D
CAN
48"
122 cm
US
36"
92 cm
48"
Flush
F
FC
If the clearance reduction is on the same side as the door handle, position the stove at
a minimum of 6 inches from the side wall (clearance B), otherwise it may be located at
the clearance shown in the table above.
1The pipe distances listed in this table refer to the distances obtained when the stove is installed in accordance with the appliance clearances above
mentioned.

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3.1.4 Inside a Combustible Alcove
See section 3.1 for the single wall pipe installation.
APPLIANCE CLEARANCES WITH DOUBLE
WALL PIPE CONNECTOR
Canada USA
A10" (254 mm) 10" (254 mm)
B17" (432 mm) 17" (432 mm)
K48" (1219 mm) 36" (914 mm)
L70" (1778 mm) 70" (1778 mm)
Ve
Ho
L
DISTANCES1FROM PIPE CONNECTOR
WITH DOUBLE WALL PIPE CONNECTOR
Canada USA
D13 ½" (343 mm) 13 ½" (343 mm)
E25 ¾" (654 mm) 25 ¾" (654 mm)
A
B
E
D
K
E
B
3.1.5 Mobile Home
It is strictly forbidden to install a unit with a single wall pipe in a mobile home.
APPLIANCE CLEARANCES WITH DOUBLE
WALL PIPE CONNECTOR
DISTANCES1FROM PIPE CONNECTOR
WITH DOUBLE WALL PIPE CONNECTOR
Canada USA Canada USA
A6" (152 mm) 6" (152 mm) D9 ½" (241 mm) 9 ½" (241 mm)
B15" (381 mm) 15" (381 mm) E23 ¾" (603 mm) 23 ¾" (603 mm)
C10" (254 mm) 10" (254 mm) F19 ¾" (502 mm) 19 ¾" (502 mm)
1The pipe distances listed in this table refer to the distances obtained when the stove is installed in accordance with the appliance clearances above
mentioned.