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Installation and
Operation Manual
SPECIALTY OVENS
Josper by Wood Stone Charcoal Broiler Oven
wood stone corporation
1801 w. bakerview rd.
bellingham, wa 98226 usa
MODELS
WS-CBO-2728-(TS)
WS-CBO-3728-(TS)
WS-CBO-3738-(TS)
tf.800.988.8103
t.360.650.1111
f.360.650.1166
woodstone-corp.com
Revised July 2014
Doc no: M0063.01
TABLE OF CONTENTS
Josper by Wood Stone Charcoal Broiler Oven
Installation and Operation Manual
TABLE OF CONTENTS
JOSPER BY WOOD STONE OVEN ��3
CAUTIONS AND WARNINGS ��4
WS-CBO SPECIFICATIONS ��6
WS-CBO-TS SPECIFICATIONS��7
INSTALLATION CLEARANCES ��8
OVEN VENTING ��9
TOOL HOLSTER INSTALLATION��10
OVEN PARTS DIAGRAM ��11
ACCESSORIES AND PARTS��12
SAFETY CONSIDERATIONS��13
CLEANING��15
LOADING THE CHARCOAL ��16
OPERATION��17
MAINTENANCE ��19
LIMITED WARRANTY ��20
An ongoing program of product improvement may require us to change
specifications without notice. WS-CBO, Revised July 2014.
Doc no: M0063.01
2
wood stone corporation
1801 w. bakerview rd.
bellingham, wa 98226 usa
tf.800.988.8103
t.360.650.1111
f.360.650.1166
info@woodstone-corp.com or visit woodstone-corp.com
JOSPER BY WOOD STONE OVEN
Josper by Wood Stone Charcoal Broiler Oven
Installation and Operation Manual
INSTALLATION AND OPERATION FOR THE
JOSPER BY WOOD STONE CHARCOAL BROILER OVEN
STONE-FIRED COOKING EQUIPMENT
WS-CBO-(2728, 3728, 3738)-(TS) MODELS
ADDITIONAL COPIES AVAILABLE UPON REQUEST
Model shown:
WS-CBO-3728
Model shown:
WS-CBO-3728-TS
with tray support
An ongoing program of product improvement may require us to change
specifications without notice. WS-CBO, Revised July 2014.
Doc no: M0063.01
wood stone corporation
1801 w. bakerview rd.
bellingham, wa 98226 usa
tf.800.988.8103
t.360.650.1111
f.360.650.1166
info@woodstone-corp.com or visit woodstone-corp.com
3
CAUTIONS AND WARNINGS
Josper by Wood Stone Charcoal Broiler Oven
Installation and Operation Manual
INSTALLATION AND OPERATING INSTRUCTIONS FOR THE
JOSPER BY WOOD STONE CHARCOAL BROILER OVEN (WS-CBO)
RETAIN THIS MANUAL FOR FUTURE REFERENCE
Additional copies of this manual at woodstone-corp.com.
For prompt responses to service/maintenance questions, call us at @ 1-800-988-8103.
READ ALL INSTRUCTIONS BEFORE INSTALLING AND USING THIS APPLIANCE
Please read this entire manual before you install the oven. Failure to follow instructions may result in property
damage, bodily injury or even death. Contact your local building or fire officials about restrictions and installation
inspection in your area.
FOR YOUR SAFETY: Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any
other appliance.
POUR VOTRE SÉCURITÉ: ne pas entreposer ni utiliser d’essence ou d’autres vapeurs de liquides.
It is recommended that this oven be installed,
maintained and serviced by authorized professionals.
CAUTION: TO REDUCE THE RISK OF FIRE, THE APPLIANCE IS TO BE MOUNTED ON FLOORS OF NON-COMBUSTIBLE
CONSTRUCTION WITH NON-COMBUSTIBLE FLOORING AND SURFACE FINISH AND WITH NO COMBUSTIBLE MATERIAL
AGAINST THE UNDERSIDE THEREOF, OR ON NONCOMBUSTIBLE STABS OR ARCHES HAVING NO COMBUSTIBLE
MATERIAL AGAINST THE UNDERSIDE THEREOF, SUCH CONSTRUCTION SHALL IN ALL CASES EXTEND NOT LESS THAN
12 INCHES BEYOND THE EQUIPMENT ON ALL SIDES.
PRUDENCE: POUR RÉDUIRE LE RISQUE DE FEU, L’APPAREIL EST ÊTRE MONTÉ SUR LES PLANCHERS DE CONSTRUCTION
INCOMBUSTIBLE AVEC LE REVÊTEMENT DE SOL INCOMBUSTIBLES ET DE FIN DE SURFACE ET AVEC LE MATÉRIEL
NON COMBUSTIBLE CONTRE LE DESSOUS DE CELA, OU SUR LES DALLES OU LES ARCSN COMBUSTIBLE S AYANT
LE MATÉRIEL NON COMBUSTIBLE CONTRE LE DESSOUS DE CELA, TELLE CONSTRUCTION FAIT DANS TOUS CAS NE
S’ÉTEND PAS MOINS QUE 12 POUCES AU-DELÀ DE L’ÉQUIPEMENT DE TOUS CÔTÉS.
An ongoing program of product improvement may require us to change
specifications without notice. WS-CBO, Revised July 2014.
Doc no: M0063.01
4
wood stone corporation
1801 w. bakerview rd.
bellingham, wa 98226 usa
tf.800.988.8103
t.360.650.1111
f.360.650.1166
info@woodstone-corp.com or visit woodstone-corp.com
CAUTIONS AND WARNINGS
Josper by Wood Stone Charcoal Broiler Oven
Installation and Operation Manual
A MAJOR CAUSE OF OVEN-RELATED FIRES IS
FAILURE TO MAINTAIN REQUIRED CLEARANCES
(AIR SPACES) TO COMBUSTIBLE MATERIALS.
IT IS OF THE UTMOST IMPORTANCE THAT THIS
OVEN BE INSTALLED ONLY IN ACCORDANCE WITH
THESE INSTRUCTIONS.
WARNING: Improper installation, adjustment, alteration, service or maintenance can result in property damage, injury
or death. Read the installation, operation and maintenance instructions thoroughly before installing or servicing this
equipment. Contact your local building or fire officials about restrictions and installation inspection in your area.
SAVE THE INSTRUCTIONS
The Josper by Wood Stone Charcoal Broiler Oven has been tested and approved by Intertek Testing Services. Outline
of Investigation for Commercial Wood-Fired Baking Ovens - Refractory Type (UL Subject 2162; issued 08/28/01; Ed: 2),
Standard for Safety for Fireplace Stoves (UL 737, 10th Edition, Issued 4/26/11) and Standard for Space Heaters for Use
With Solid Fuels (ULC-S627-00), and to ANSI/NSF Standard 4 - 2009.
An ongoing program of product improvement may require us to change
specifications without notice. WS-CBO, Revised July 2014.
Doc no: M0063.01
wood stone corporation
1801 w. bakerview rd.
bellingham, wa 98226 usa
tf.800.988.8103
t.360.650.1111
f.360.650.1166
info@woodstone-corp.com or visit woodstone-corp.com
5
WS-CBO SPECIFICATIONS
Josper by Wood Stone Charcoal Broiler Oven
Installation and Operation Manual
WS-CBO-(2728, 3728, 3738)
Plan view
Model
Model
Model
2728
2728
2728
3728
3728
3728
3738
3738
3738
AA
BB A
B
Front view
Height
Height
Height
68
681/4"
1/4"
68 1/4"
70
703/4"
3/4"
70 3/4"
70
703/4"
3/4"
70 3/4"
Width
Width
Width
27"
27"
27"
37"
37"
37"
37"
37"
37"
AA
A
28"
28"
28"
28"
28"
28"
38"
38"
38"
BB
B
31"
31"
31"
31
311/2"
1/2"
31 1/2"
40
401/2"
1/2"
40 1/2"
CC
C
40
401/2"
1/2"
40 1/2"
42
421/2"
1/2"
42 1/2"
51
513/4"
3/4"
51 3/4"
Side view
Width
Width
Width
CC
C
21
211/4"
1/4"
21
1/4"
540mm
540mm
540mm
Height
Height
Height
31
313/4"
3/4"
31
3/4"
800mm
800mm
800mm
661/4"
1/4"
6160mm
1/4"
160mm
160mm
Josper Broiler Grate dims
Josper Broiler dimensions
Model
Height
Width
A
2728
3728
3738
68-1/4"
70-3/4"
70-3/4"
27"
37"
37"
28"
28"
38"
m,
WA
360/650-1111
www.woodstone-corp.com
m,, WA
WA 360/650-1111
360/650-1111 www.woodstone-corp.com
www.woodstone-corp.com
B
C
Shipping Weight
31-1/2" 40-1/2"
800 lbs.
31-1/2" 42-1/2"
1,100 lbs.
40-1/2" 51-3/4"
1,300 lbs.
001-CBO-3738-00
PART
PART
#:
001-CBO-3738-00
PART #:
#: 001-CBO-3738-00
DATE:
DATE:
5/29/2013
5/29/2013
DATE: 5/29/2013
DIMENSIONS
DIMENSIONS
ARE
IN
INCHES
DIMENSIONS ARE
ARE IN
IN INCHES
INCHES
RANCES:
LINEAR
±1/2
[±10mm],
ANGULAR
±2°
RANCES:
LINEAR
±1/2
[±10mm],
ANGULAR
±2°
RANCES: LINEAR
±1/2
[±10mm],
ANGULAR
±2°us to change
An ongoing
program
of product improvement
may require
UNLESS
NOTED
OTHERWISE
UNLESS
NOTED
OTHERWISE
notice. WS-CBO, Revised July 2014.
UNLESS specifications
NOTEDwithout
OTHERWISE
Doc no: M0063.01
GOING
GOING
PROGRAM
OF
PRODUCT
IMPROVEMENT
GOING PROGRAM
PROGRAM OF
OF PRODUCT
PRODUCT IMPROVEMENT
IMPROVEMENT
Y
REQUIRE
US
Y
REQUIRE
US
TO
CHANGE
SPECIFICATIONS
Y REQUIRE US TO
TO CHANGE
CHANGE SPECIFICATIONS
SPECIFICATIONS
LEGEND:
LEGEND:
6 WITHOUT
LEGEND:
WITHOUT
NOTICE.
WITHOUT NOTICE.
NOTICE.
ORMATION
ORMATION CONTAINED
CONTAINED IN
IN THIS
THIS DRAWING
DRAWING IS
IS THE
THE
wood stone corporation
1801 w. bakerview rd.
bellingham, wa 98226 usa
Model
Width
2728
19.25"
3728
29.75"
3738
29.75"
1
of
11
1
of
SHEET:
SHEET:
SHEET: 1 of 1
DWN
bena
DWN
BY:
bena
DWN BY:
BY: bena
tf.800.988.8103
Depth
20.25"
20.25"
30.50"
Charcoal
Oven
Charcoal Broiler
Broiler t.360.650.1111
Oven 3738
3738
f.360.650.1166
General
info@woodstone-corp.com
or visit woodstone-corp.com
General Arrangement
Arrangement
REV:
REV:
REV:
2
WS-CBO-TS SPECIFICATIONS
Josper by Wood Stone Charcoal Broiler Oven
Installation and Operation Manual
WS-CBO-(2728, 3728, 3738)-TS
Plan view
Model
Model Height
Height Width
WidthA A B B C C
Model 68
Height 27"
Width A
B
C
2728
2728 1/4"
68 1/4" 27" 28" 28"31" 31" 40 1/2"
40 1/2"
2728
68 1/4" 37"
27"
28" 31"
40 1/2"
3728
3728 70 3/4"
70 3/4" 37" 28" 28"31 1/2"
31 1/2"42 1/2"
42 1/2"
3728
70 3/4" 37"
37"
28" 31 1/2" 51
42 1/2"
3738
3738 70 3/4"
70 3/4" 37" 38" 38"40 1/2"
40 1/2" 3/4"
51 3/4"
3738
70 3/4" 37"
38" 40 1/2" 51 3/4"
A
B BA A
B
Front view
Side view
C C
C
Width
Width
Width
14 3/4"
14 3/4"
380mm
14 3/4"
380mm
380mm
5 3/4"
5 3/4"7 1/4"
7 1/4"
140mm
5 3/4"
140mm
180mm
7 1/4"
180mm
140mm 180mm
Height
Height
Height
31 3/4"
31 3/4"
800mm
31 3/4"
800mm
800mm
6 1/4"
6 1/4"
160mm
6 1/4"
160mm
160mm
Josper Broiler dimensions
Model
2728-TS
3728-TS
3738-TS
Height
68-1/4"
70-3/4"
70-3/4"
Width
27"
37"
37"
gham,
WAWA
360/650-1111
www.woodstone-corp.com
lingham,
360/650-1111
www.woodstone-corp.com
gham, WA 360/650-1111 www.woodstone-corp.com
Josper Broiler Grate dims
A
28"
28"
38"
B
C
Shipping Weight
31-1/2" 40-1/2"
800 lbs.
31-1/2" 42-1/2"
1,100 lbs.
40-1/2" 51-3/4"
1,300 lbs.
001-CBO-3738-TS
PART
#: #: 001-CBO-3738-TS
PART
PART #: 001-CBO-3738-TS
DATE:
DATE: 5/29/2013
DATE: 5/29/2013
5/29/2013
2728-TS 19.25"
3728-TS 29.75"
3738-TS 29.75"
1 1
1 of
SHEET:
SHEET:1 of
SHEET: 1 of 1
DWN
BY:BY:bena
bena
DWN
DWN BY: bena
wood stone corporation
tf.800.988.8103
Model
Width
Depth
20.25"
20.25"
30.50"
REV:
REV
REV:
2
22
Charcoal
Oven
3738
With
Charcoal
Broiler
Oven
3738
WithTray
TraySupport
Support
t.360.650.1111
1801Broiler
w.
bakerview
rd.
Charcoal
Broiler
Oven
3738
With
Tray
Support
f.360.650.1166
bellingham, wa 98226 usa
General
Arrangement
General
Arrangement
info@woodstone-corp.com
or
visit
woodstone-corp.com
General Arrangement
DIMENSIONS
ARE
IN IN
INCHES
DIMENSIONS
ARE
INCHES
DIMENSIONS
ARE
IN INCHES
OLERANCES:
LINEAR
±1/2
[±10mm],
ANGULAR
±2°±2°
TOLERANCES:
LINEAR
±1/2
[±10mm],
ANGULAR
OLERANCES:
LINEAR
±1/2
[±10mm],
ANGULAR
±2°us to change
An
ongoing
program
of product improvement
may require
UNLESS
NOTED
OTHERWISE
UNLESS
NOTED
OTHERWISE
notice. WS-CBO, Revised July 2014.
UNLESS specifications
NOTEDwithout
OTHERWISE
ONGOING
PROGRAM
OFOF
PRODUCT
IMPROVEMENT
Doc no: M0063.01
AN
ONGOING
PROGRAM
PRODUCT
IMPROVEMENT
ONGOING
PROGRAM
OF PRODUCT
IMPROVEMENT
MAY
REQUIRE
USUS
TOTO
CHANGE
SPECIFICATIONS
MAY
REQUIRE
CHANGE
SPECIFICATIONS
LEGEND:
MAY REQUIRE WITHOUT
US TO CHANGE
SPECIFICATIONS
LEGEND:
NOTICE.
WITHOUT
NOTICE.
LEGEND:
WITHOUT NOTICE.
INFORMATION
CONTAINED
IN IN
THIS
DRAWING
IS IS
THE
E INFORMATION
CONTAINED
THIS
DRAWING
THE
7
INSTALLATION CLEARANCES
Josper by Wood Stone Charcoal Broiler Oven
Installation and Operation Manual
WARNING: Do not pack required air space (clearance) with insulation or other materials.
EN AVERTISSANT: n’emballez pas les espaces aériens requis avec l’isolation ou tout autre matériel.
IF THIS OVEN IS NOT PROPERLY INSTALLED A FIRE MAY RESULT. TO REDUCE THE RISK OF FIRE, FOLLOW THESE INSTALLATION
INSTRUCTIONS. A MAJOR CAUSE OF OVEN RELATED FIRES IS FAILURE TO MAINTAIN REQUIRED CLEARANCES (AIR SPACES)
TO COMBUSTIBLE MATERIALS. IT IS OF UTMOST IMPORTANCE THAT THIS OVEN BE INSTALLED ONLY IN ACCORDANCE
WITH THESE INSTRUCTIONS.
CLEARANCES TO CONSTRUCTION
Floor: The Josper by Wood Stone oven must be installed on a non-combustible floor that extends 36" to the front and 30" to each
side of the oven door.
Sides: 18" to combustible materials
Back: 6" to combustible materials
When non-combustible building materials contact the body of the oven, the clearances to combustibles are transferred
to those non-combustibles.
This oven must be installed under a Listed Type 1 exhaust hood, or one constructed in accordance with NFPA 96. The hood must
be installed and maintained in accordance with NFPA 96 and/or all relevant local and national codes.
An ongoing program of product improvement may require us to change
specifications without notice. WS-CBO, Revised July 2014.
Doc no: M0063.01
8
wood stone corporation
1801 w. bakerview rd.
bellingham, wa 98226 usa
tf.800.988.8103
t.360.650.1111
f.360.650.1166
info@woodstone-corp.com or visit woodstone-corp.com
OVEN VENTING
Josper by Wood Stone Charcoal Broiler Oven
Installation and Operation Manual
The Josper by Wood Stone Charcoal Broiler oven must be vented using a Listed Type 1 exhaust hood, or one constructed
and installed in accordance with the Standard for Ventilation Control and Fire Protection of Commercial Cooking
Operations, NFPA 96, and all relevant local and national codes.
The Josper by Wood Stone ovens, including model numbers WS-CBO-2728-(TS), WS-CBO-3728-(TS) and WS-CBO-3738-(TS),
must be vented in accordance with codes concerning solid fuel appliances (NFPA 96). Due to the dangers of creosote buildup and
of sparks entering the duct, these models should be vented separately from all other non-solid fuel kitchen equipment and in a
manner acceptable to the authority having jurisdiction. The Wood Stone customer support staff is available to answer any questions
concerning installation and venting of the oven. Call 1-800-988-8103 for assistance and technical support.
When wood and charcoal is burned slowly, it produces tar and other organic vapors that combine with expelled moisture
to form creosote. The creosote vapors condense in a relatively cool oven flue and exhaust hood of a slow burning fire.
As a result, creosote residue accumulates on the flue lining and exhaust hood. When ignited, the creosote makes an
extremely hot fire.
The rate of accumulation will vary with respect to flue gas temperature, wood type and moisture content. Frequent,
regularly scheduled, thorough flue cleaning is the best way to minimize the risk of flue fires.
Place the smoke outlet vent into the oven smoke outlet, then place the firebreak on top of the smoke outlet vent. Refer to OVEN
PARTS DIAGRAM section.
CALL WOOD STONE FOR INFORMATION AND INSTALLATION
SPECIFICATIONS ON GAYLORD HOODS.
An ongoing program of product improvement may require us to change
specifications without notice. WS-CBO, Revised July 2014.
Doc no: M0063.01
wood stone corporation
1801 w. bakerview rd.
bellingham, wa 98226 usa
tf.800.988.8103
t.360.650.1111
f.360.650.1166
info@woodstone-corp.com or visit woodstone-corp.com
9
TOOL HOLSTER INSTALLATION
Josper by Wood Stone Charcoal Broiler Oven
Installation and Operation Manual
INSTALLING THE JOSPER TOOL HOLSTER
The Josper Tool Holster can be installed on either side of the Josper, depending upon preference. Both sides are scribed with
position markings.
Enlargement of scribed
positioning marks. Note the
rectangle they form is at a
45° angle.
9-1/2"
1. Peel protective film from stainless steel Tool Holster.
2. Determine side of Josper for Tool Holster installation and
locate the 4 small, faintly scribed Xs. The top X is 9-1/2” from
the top of the oven.
3. Predrill 4 holes for the screws at the center of each X using a
1/8” drill bit.
or: No reference
Deburr
ES
±.005
Right side installation
shown. Note left side
installation is also an option.
THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF WOOD STONE CORPORATION
ANY REPRODUCTION OR USE IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF WOOD STONE IS PROHIBITED
Charcoal Broiler Oven 3728
Production Build Assembly
4. Fasten Tool Holster to Josper using supplied 10-16x3/4”
Phillips stainless steel screws.
1 of 1
DWN BY:
brettvl
PART #:
002-CBO-3728-00
An ongoing program of product improvement may require us to change
specifications without notice. WS-CBO, Revised July 2014.
Doc no: M0063.01
10
REV:
SHEET:
DATE:
3
Error: No reference
wood stone corporation
1801 w. bakerview rd.
bellingham, wa 98226 usa
tf.800.988.8103
t.360.650.1111
f.360.650.1166
info@woodstone-corp.com or visit woodstone-corp.com
OVEN PARTS DIAGRAM
Josper by Wood Stone Charcoal Broiler Oven
Installation and Operation Manual
Cap
OPEN
Firebreak
CLOSE
UPPER VENT
Oven Door Handle
Josper Broiler Grate runners
Oven Door
Temperature Gauge
Josper Broiler Grates
Cast Iron Grates
Drip Tray
Ash Chamber
Ash Gate
LOWER VENT
TOP VIEW
Ash Gate Latch
Lower
Vent Ash Air
Handle Gate Intake
Ash Catcher
Wheels
OPEN
CLOSE
An ongoing program of product improvement may require us to change
specifications without notice. WS-CBO, Revised July 2014.
Doc no: M0063.01
wood stone corporation
1801 w. bakerview rd.
bellingham, wa 98226 usa
tf.800.988.8103
t.360.650.1111
f.360.650.1166
info@woodstone-corp.com or visit woodstone-corp.com
11
ACCESSORIES AND PARTS
Josper by Wood Stone Charcoal Broiler Oven
Installation and Operation Manual
A.TRAY SUPPORT
The Tray Support sits on top of the oven and is designed
for resting food for finishing. It also provides additional
surface area to assist in plating product. Order by model:
A
000-CBO-2728-TRAY-SUPPORT
000-CBO-3728-TRAY-SUPPORT
000-CBO-3738-TRAY-SUPPORT
B.TONGS (WS-TL-CBO-TONG)
The Tongs’ primary purpose is to push and pull the
Josper Broiler Grates in and out of the broiler. They also
serve as a spatula and grippers for managing product on
the grate. Tool Holster included.
B
D.T-STYLE FLOOR BRUSH (WS-TL-TFB-S)
The 40" T-Style Floor Brass Bristled Brush is used to
brush off the Josper Broiler Grates.
E.JOSPER BROILER GRATE
The Josper Broiler Grate is the cooking surface of the
broiler. Additional Josper Broiler Grates can be added for
cooking smaller foods or smoking items. Order by model:
E
F
002-CBO-2728-09 (19.25 X 20.25")
002-CBO-3728-05 (29.75 X 20.25")
002-CBO-3738-09 (29.75 X 30.50")
F. ASH RAKE (WS-TL-CBO-ASH-RAKE)
The 40" Ash Rake is designed to manage the charcoal
in the oven and can be used to push and pull the Josper
Broiler Grates.
G.CAST IRON GRATE
Cast Iron Grates line the bottom of the broiler supporting
the charcoal. These grates can be removed for more
thorough cleaning. Order by model:
D
C
C.TOOL HOLSTER (1632033)
The Tool Holster is a stainless steel holder that can be
attached to the broiler. It is a great place to store your
tongs for easy accessibility.
50CBO-0043 (for models 2728 & 3728)
50CBO-0009 (3738 only)
G
I
H
H.ASH CATCHER
The Ash Catcher sits in the bottom of the unit to catch
the ashes as they drop. Order by model:
1632043 (for model 2728)
1632025 (for model 3728)
1632009 (for model 3738)
I. DOUBLE COMPARTMENT ASH DOLLY (WS-TL-AD)
The Ash Dolly is used to safely retain ashes and hot coals
from the Ash Catcher until they cool down sufficiently for
proper disposal.
An ongoing program of product improvement may require us to change
specifications without notice. WS-CBO, Revised July 2014.
Doc no: M0063.01
12
FOR MORE INFO ABOUT ACCESSORIES AND TOOLS, CONTACT
YOUR DEALER.
wood stone corporation
1801 w. bakerview rd.
bellingham, wa 98226 usa
tf.800.988.8103
t.360.650.1111
f.360.650.1166
info@woodstone-corp.com or visit woodstone-corp.com
SAFETY CONSIDERATIONS
Josper by Wood Stone Charcoal Broiler Oven
Installation and Operation Manual
CLEANING AND MAINTENANCE
CAUTION: When cleaning the Josper oven, you’ll be working with extremely hot materials, such as grates, embers and
ash. Insulated gloves must be worn to prevent burns. Even over night, the oven will retain significant heat. Take care not
to touch the oven or any of its components without the appropriate protection.
Do not use chemical products to clean the oven. Never pour water inside the oven to put out the charcoal.
IMPORTANT: Ashes must not be poured into containers made from combustible or heat sensitive materials. Ashes
should be placed into an ash dolly (metal container with a tight fitting lid). The closed container of ashes should be
placed on a non-combustible floor surface or on the ground, a safe distance from all combustible materials, pending final
disposal. Check with your dealer about Wood Stone’s Ash Dolly.
DISPOSAL OF ASHES
Ashes should be placed in a metal container with a tight-fitting lid. The closed container of ashes should be placed on a noncombustible floor or on the ground, well away from the combustible materials, pending final disposal. When the ashes are disposed
by burial in soil or otherwise locally dispersed, they should be retained in the closed container until all cinders have thoroughly
cooled.
The optional Wood Stone’s Dual Compartment Ash Dolly is available through your dealer. The specification sheet may be viewed on
the Wood Stone website under Tools & Accessories.
CREOSOTE—FORMATION AND NEED FOR REMOVAL
When wood or charcoal is burned slowly, it produces tar and other organic vapors that combine with expelled moisture to form
creosote. The creosote vapors condense in a relatively cool oven flue and exhaust hood of a slow burning fire. As a result, creosote
residue accumulates on the flue lining and exhaust. When ignited, the creosote makes an extremely hot fire.
As with all commercial cooking equipment exhaust systems, a regular inspection and cleaning schedule is needed to prevent the
possibility of a hood or duct fire. The frequency of inspection and cleaning will depend on hours of use and amount of grease-laden
vapors produced.
The duct serving this oven should be inspected at least twice a month during the first two months of operation, to establish rate of
creosote buildup and necessary cleaning schedule. If creosote or soot has accumulated, it should be removed to reduce the risk
of a flue fire.
The oven flue and exhaust system will require inspection and cleaning. The exhaust system should be inspected
and cleaned per the manufacturer’s and or local code official’s recommendations.
USE CHARCOAL FUEL ONLY.
DO NOT USE PRODUCTS NOT
SPECIFIED FOR USE WITH
THIS OVEN.
Wood Stone’s optional Double
Compartment Ash Dolly. View the spec
sheet at woodstone-corp.com in the
Tools and Accessories section.
An ongoing program of product improvement may require us to change
specifications without notice. WS-CBO, Revised July 2014.
Doc no: M0063.01
wood stone corporation
1801 w. bakerview rd.
bellingham, wa 98226 usa
tf.800.988.8103
t.360.650.1111
f.360.650.1166
info@woodstone-corp.com or visit woodstone-corp.com
13
DAILY OPERATION
Josper by Wood Stone Charcoal Broiler Oven
Installation and Operation Manual
START OF DAY
Cleaning the oven everyday is critical to ensure proper airflow and overall performance.
WARNING: The oven and ash may be extremely hot. It is recommended
that insulated gloves be worn during the process of removing ash from the oven.
1. Clean door & door frame.
•Scrape accumulated fat and debris from the door frame
and door. We recommend using a 1" rigid paint scraper for
cleaning. Pay particular attention to the lower part of the door
frame and door, where fat often drips during cooking (fig. a).
•Note: Keeping the door frame and door clean maintains a
uniform fit and proper flow of combustion air.
Door
frame
ADDITIONAL STEP: 2–3 TIMES PER WEEK—CLEAN OUT ASH CHAMBER
•Ash Gate should be open. Push embers to one side of oven and remove Cast Iron
Grates from the other side to gain access to the Ash Chamber.
•Push all reachable ash out of Ash Chamber into Ash Chamber (fig. b & c). Scrape
grease build-up from top sides of Ash Chamber. Scrape any heavy build-up off Cast
Iron Grates, and replace grates. Note: Average life of Cast Iron Grates is 4–6 months.
•Repeat for other side.
•Close the Ash Gate and secure using Ash Gate Latch.
Replace Lower Vent Handle and close the Lower Vent.
3. Clean drip tray daily.
To remove drip tray, lift up and pull
away from the oven (fig. e).
An ongoing program of product improvement may require us to change
specifications without notice. WS-CBO, Revised July 2014.
Doc no: M0063.01
14
Lift up and
pull away
from oven
to remove.
Pay
particular
attention to
this area
Door
2. Clean out ash.
•Open Lower Vent by pushing handle in.
•Rake ash over Cast Iron Grates towards the center of the oven so ash falls through
to the Ash Chamber directly below. Leave any embers or large pieces of unburned
charcoal.
•Rapidly push and pull Lower Vent Handle 2–3 times to jostle ash through the vent.
•Lift the Lower Vent Handle from its cradle, turn and pull the handle to remove it.
•Push the Ash Gate Latch down (located at base of Ash Chamber), which will
immediately release the Ash Gate, dropping ash from the Ash Chamber into the Ash
Catcher (fig. b & c). Take care to avoid falling ash and embers.
•Close the Ash Gate and secure using Ash Gate Latch. Replace Lower Vent Handle and
close the Lower Vent.
fig. a
fig. b
Ash Gate
Latch
Ash
Catcher
Ash Gate in closed position.
fig. c
Ash Gate in open position.
fig. d
Ash Chamber—opened Ash
Gate at bottom.
fig. e
wood stone corporation
1801 w. bakerview rd.
bellingham, wa 98226 usa
tf.800.988.8103
t.360.650.1111
f.360.650.1166
info@woodstone-corp.com or visit woodstone-corp.com
CLEANING
Josper by Wood Stone Charcoal Broiler Oven
Installation and Operation Manual
WEEKLY
1. Clean firebreak.
Remove cap, then remove firebreak by lifting straight up. Deposits can
be loosened by tapping the sides of the firebreak with a wooden spatula,
rotating the firebreak to access all sides (fig. f).
fig. f
Note: Never use water to clean the inside of the firebreak. This will prevent
the soot from compacting and will prevent smoke from passing through.
2. Clean upper vent.
Remove vent by pulling and twisting upwards. Wire brush ash and deposits
from upper vent blade and surrounding pipe.
An ongoing program of product improvement may require us to change
specifications without notice. WS-CBO, Revised July 2014.
Doc no: M0063.01
Tap the sides of the firebreak
with a wooden spatula to
remove deposits.
wood stone corporation
1801 w. bakerview rd.
bellingham, wa 98226 usa
tf.800.988.8103
t.360.650.1111
f.360.650.1166
info@woodstone-corp.com or visit woodstone-corp.com
15
LOADING THE CHARCOAL
Josper by Wood Stone Charcoal Broiler Oven
Installation and Operation Manual
LOADING THE CHARCOAL
•Load the charcoal in a pile in the center in the center of the oven. The amount of charcoal will depend on the size of the oven.
The oven will be loaded twice a day—once for lunch service and once for dinner service. See the table below for the approximate
load quantities and total daily charcoal usage.
Oven Model
Approximate Daily Charcoal Usage
Lunch
Dinner
Total Daily Usage
WS-CBO-2728
20 lbs.
22 lbs.
42 lbs.
WS-CBO-3728
23 lbs.
24 lbs.
47 lbs.
WS-CBO-3738
28 lbs.
32 lbs.
60 lbs.
LIGHTING THE CHARCOAL
BEFORE LIGHTING
•Bring the charcoal together with the poker so that it is piled up in the center of the oven—not flat. When lit, the charcoal will
catch fire quickly and burn evenly.
•Open the Upper and Lower Vents (fig. g).
fig. g
Open
Upper vent
Open
Lower Vent
LIGHTING
Use a fire starter (paraffin/sawdust stick) to make three lighting points in the piled charcoal. Place one in the middle of the charcoal
and the other two at the sides.
After the fire starter has been lit, close the door and follow the instructions on the next page.
CAUTION: Never use gasoline, gasoline-type lantern fuel, kerosene, charcoal lighter fluid or similar liquids to start or
freshen a fire in this oven. Keep all such liquids away from the oven while it is in use.
THE LIGHTING PROCESS MUST BE CARRIED OUT WITHOUT FOOD INSIDE THE OVEN.
An ongoing program of product improvement may require us to change
specifications without notice. WS-CBO, Revised July 2014.
Doc no: M0063.01
16
wood stone corporation
1801 w. bakerview rd.
bellingham, wa 98226 usa
tf.800.988.8103
t.360.650.1111
f.360.650.1166
info@woodstone-corp.com or visit woodstone-corp.com
OPERATION
Josper by Wood Stone Charcoal Broiler Oven
Installation and Operation Manual
PREPARING THE OVEN FOR COOKING
STEPS BEFORE OPENING THE DOOR
•Wait 30–45 minutes (depending on the oven model) after lighting to be sure that the oven is well
lit. Note: If starting the oven for the first time, or if it has cooled to room temperature, wait time
will be 45–60 minutes.
•After this time, close the Lower Vent and keep the upper vent open.
•Wait an additional 5–10 minutes. The door to the oven can then be opened slowly to make
sure that the flames have disappeared. When they have, close the upper vent.
•Flatten the charcoal with the Ash Tool and spread it so that it is evenly distributed. We
recommend bringing the charcoal to 1 side, covering 2/3rds of the Cast Iron Grates (fig. h).
2/3
1/3
CHARCOAL IS READY WHEN IT IS BURNT DOWN TO EMBERS.
THE CHARCOAL BED SHOULD BE REDDISH IN COLOR, WITHOUT LUMPS OF BLACK CHARCOAL.
COOKING
PLACE THE JOSPER BROILER GRATES
•Slide grates into the oven along the grill racks. (Removing the grates during fire start up
and recharging will prolong the life of the grate.) Two broiler grates can be used at the same
time (fig. i).
•Place the grates according to the type of food being cooked.
Upper positions: Dishes au gratin, roasts, pizzas, bread
Lower positions (as close as possible to charcoal as possible): Meat vegetables, fish
fig. h
fig. i
PREPARE THE JOSPER BROILER GRATES
•Brush the Josper Broiler Grates using a sharp wire brush to remove the accumulated fat.
CLEANING DURING THE COOKING CYCLE
•Scrape accumulated fat and debris from the door frame and door. We recommend using a 1"
rigid paint scraper for cleaning. Pay particular attention to the lower part of the door frame and
door, where fat often drips during cooking.
ADJUSTING VENT POSITIONS
•Adjust vents as needed throughout the cooking cycle. We recommend starting with both vents
closed, and then opening the upper vent 1/2 way, or as needed, to create more heat by allowing
more air through the cooking chamber.
NOTE: If smoke is coming out of the Oven Door (for example, during high production cooking), the
upper vent should be opened another notch until the smoke disappears.
An ongoing program of product improvement may require us to change
specifications without notice. WS-CBO, Revised July 2014.
Doc no: M0063.01
wood stone corporation
1801 w. bakerview rd.
bellingham, wa 98226 usa
tf.800.988.8103
t.360.650.1111
f.360.650.1166
info@woodstone-corp.com or visit woodstone-corp.com
17
OPERATION
Josper by Wood Stone Charcoal Broiler Oven
Installation and Operation Manual
REFUELING THE OVEN MID COOKING CYCLE
fig. j
•Open the door and take out the Josper Broiler Grate(s).
IMPORTANT: When handling the Josper Broiler Grates, insulated gloves
must be used to prevent burns. Take care not to touch the oven without
protection for your hands.
•Open upper and Lower Vents (fig. j).
•Rake ash over Cast Iron Grates towards the center of the oven so
loose ash falls through to the Ash Chamber below (fig. k). Push
remaining embers or large pieces of unburned charcoal back to
fig.k
one side.
•Rapidly push and pull Lower Vent Handle 2–3 times to jostle ash
through the opened Lower Vent open. Leave Lower Vent open.
•Load charcoal per quantities listed in the LOADING THE CHARCOAL
section of this manual.
• Open upper vent to speed combustion.
•Follow PREPARING THE OVEN FOR COOKING instructions on previous
page.
•Follow COOKING instructions on previous page.
Open
Upper Vent
Open
Lower Vent
BEFORE COOKING AGAIN, BE SURE THAT THE FRESH CHARCOAL ADDED
HAS BURNED DOWN TO RED EMBERS.
END OF DAY
•Open the door and take out the Josper Broiler Grate(s).
•Close the upper vent. The Lower Vent should already
be closed (fig. l).
fig. l
Close
upper vent
Close
Lower Vent
An ongoing program of product improvement may require us to change
specifications without notice. WS-CBO, Revised July 2014.
Doc no: M0063.01
18
wood stone corporation
1801 w. bakerview rd.
bellingham, wa 98226 usa
tf.800.988.8103
t.360.650.1111
f.360.650.1166
info@woodstone-corp.com or visit woodstone-corp.com
MAINTENANCE
Josper by Wood Stone Charcoal Broiler Oven
Installation and Operation Manual
PERIODIC MAINTENANCE
OVEN DOOR SPRING REPLACEMENT
Symptoms indicating the door springs are weakening and need replacement: the door begins to feel considerably heavier while
closing and falls forcefully when opened. If both springs are not replaced promptly, damage to the oven will result, which will not
be covered under the warranty. Annual replacement of both springs is strongly recommended.
An initial set of Oven Door Replacement Springs have been provided (one for each side). They are located behind the side service
panels (see illustration below). Replace the springs with the Oven Door closed.
After installing the replacement springs, order new replacements immediately (p/n 7000-1358).
1. Remove the service panel (see
fig. m).
2. Unhook the two ends of the
broken spring.
3. Using the supplied replacement
spring (temporarily attached
to the cross member in the
compartment), hook one end to
the eye hook, and the other end
to the chain so that the endto-end length of the spring is
8.25–8.75" (see fig. n). Adjust
spring length by rotating nut at
end of all-thread. Spring is set
correctly when the door falls
open softly.
4. Replace the service panel.
5. Repeat process on other side.
fig. m
fig. n
Replacement
spring
Right side
service
panel
8.25–8.75"

Chain
Eye
hook


Spring
adjustment
nut
 




An ongoing program of product improvement may require us to change
specifications without notice. WS-CBO, Revised July 2014.
Doc no: M0063.01





 








wood stone corporation
1801 w. bakerview rd.
bellingham, wa 98226 usa

tf.800.988.8103
t.360.650.1111
f.360.650.1166
info@woodstone-corp.com or visit woodstone-corp.com
19
LIMITED WARRANTY
Josper by Wood Stone Charcoal Broiler Oven
Installation and Operation Manual
ALL WARRANTY SERVICE MUST BE PRE-APPROVED BY WOOD STONE
Wood Stone warrants its equipment to the original purchaser against defects in material or manufacture for a period of one
year from the original date of purchase, subject to the following exclusions and limitations.
Please contact the factory first at 1.800.988.8103 or 1.360.650.1111, seven days a week. Our normal business hours are 8am
to 4:30pm PST Monday–Friday. If calling during non-business hours, follow the recorded instructions for emergency service
and a Wood Stone technician will get back to you promptly.
EXCLUSIONS
The warranties provided by Wood Stone do not apply in the following instances:
1. In the event that the equipment is improperly installed. Proper installation is the responsibility of the installer; proper installation
procedures are prescribed by the Wood Stone Installation and Operation Manual.
2. In the event the equipment is improperly or inadequately maintained. Proper maintenance is the responsibility of the user;
proper maintenance procedures are prescribed in the Wood Stone Installation and Operation Manual. Burner problems resulting
from debris or ash in the burner well will not be covered by the warranty. Call with questions regarding maintenance frequency.
3. In the event that the failure or malfunction of the appliance or any part thereof is caused by abnormal or improper use or is otherwise
not attributable to defect in material or manufacture.
4. In the event that the appliance, by whatever cause, has been materially altered from the condition in which it left the factory.
5. In the event that the rating plate has been removed, altered or obliterated.
6. On parts that would be normally worn or replaced under normal conditions.
7. Normal cracking due to expansion and contraction stress relief in the ceramic firebox.
8. In wood-fired equipment configurations, in the event that pressed log products of any type have been burned in the equipment.
9. In coal-fired oven configurations, in the event any type of coal other than anthracite coal fuel has been used.
10.Damage resulting from the use of chemical cleaning products in the oven, as well as any damage from liquids or chemicals, including
water, being poured or sprayed into the oven.
If any oral statements have been made regarding this appliance, such statements do not constitute warranties and are not part of the
contract of sale. This Limited Warranty constitutes the complete, final and exclusive statement with regard to warranties.
THIS LIMITED WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER WRITTEN, ORAL OR
IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR PARTICULAR
PURPOSE OR WARRANTY AGAINST LATENT DEFECTS.
LIMITATIONS OF LIABILITY
In the event of warranty claim or otherwise, the sole obligation of Wood Stone shall be the repair and/or replacement, at the option of
Wood Stone, of the appliance or component or part thereof. Such repair or replacement shall be at the expense of Wood Stone with the
exception of travel over 100 miles or two hours, overtime, and holiday charges which shall be at the expense of the purchaser. Any repair
or replacement under this warranty does not constitute an extension of the original warranty for any period of the appliance or for any
component or part thereof. Parts to be replaced under this warranty will be repaired or replaced at the option of Wood Stone with new
or functionally operative parts. The liability of Wood Stone on any claim of any kind, including claims based on warranty, expressed or
implied, contract, negligence, strict liability or any other theories shall be solely and exclusively the repair or replacement of the product
as stated herein, and such liability shall not include, and purchaser specifically renounces any rights to recover, special, incidental,
consequential or other damages of any kind whatsoever, including, but not limited to, injuries to persons or damage to property, loss of
profits or anticipated profits, or loss of use of the product.
TO SECURE WARRANTY SERVICE
If you claim a defect covered by this Limited Warranty, contact:
Wood Stone Corporation, Attn: Service Department, 1801 W. Bakerview Rd., Bellingham, WA 98226 USA
Phone 1.800.988.8103 or 1.360.650.1111
An ongoing program of product improvement may require us to change
specifications without notice. WS-CBO, Revised July 2014.
Doc no: M0063.01
20
wood stone corporation
1801 w. bakerview rd.
bellingham, wa 98226 usa
tf.800.988.8103
t.360.650.1111
f.360.650.1166
info@woodstone-corp.com or visit woodstone-corp.com