Wood Stone WS-GFT-31 User manual

Revised March 2010
Wood Stone Corporation
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
Toll Free [phone]
Tel [phone]
Fax [phone]
www.woodstone-corp.com
Installation and
Operation Manual
tandoor 31" and 35"
WS-GFT-31
WS-GFT-35
tandoor oven

1
An ongoing program of product improvement may require us to change
specifications without notice. GFT-31, GFT-35 Revised March 2010
Wood Stone Corporation
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
Toll Free [phone]
Tel [phone]
Fax [phone]
[email protected] or visit www.woodstone-corp.com
Tandoor Installation and Operation Manual
taBLe oF ContentS
TABLE OF CONTENTS
TANDOOR ------------------------------------------------------------------------------------- 2
GENERAL INFORMATION -----------------------------------------------------------------------4
INSTALLATION---------------------------------------------------------------------------------6
OPERATION ----------------------------------------------------------------------------------- 8
LIMITED WARRANTY --------------------------------------------------------------------------10

2
An ongoing program of product improvement may require us to change
specifications without notice. GFT-31, GFT-35 Revised March 2010
Wood Stone Corporation
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
Toll Free [phone]
Tel [phone]
Fax [phone]
[email protected] or visit www.woodstone-corp.com
Tandoor Installation and Operation Manual
tandoor
WS-GFT-31 AND WS-GFT-35
INSTALLATION AND OPERATION MANUAL FOR THE
WOOD STONE TANDOOR
GAS-FIRED TANDOOR OVEN
ADDITIONAL COPIES AVAILABLE UPON REQUEST
TANDOOR

3
An ongoing program of product improvement may require us to change
specifications without notice. GFT-31, GFT-35 Revised March 2010
Wood Stone Corporation
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
Toll Free [phone]
Tel [phone]
Fax [phone]
[email protected] or visit www.woodstone-corp.com
Tandoor Installation and Operation Manual
tandoor
INSTALLATION AND OPERATING INSTRUCTIONS FOR THE WOOD STONE
GFT-31-(RND, SQR, OCT)-(NG, LP), AND GFT-35-(RND, SQR, OCT)-(NG, LP)
TANDOOR OVENS
Wood Stone's gas-fired Tandoor ovens have been tested and approved by Intertek Testing Services, and are
ETL Listed to ANSI Z83.11b - 2006, CSA 1.8b-2006, UL Subject 2162, ULC Subject 1482-M1990, and to NSF/
ANSI Standard 4 - 2007.
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.
WARNING: This product must be installed by a Licensed Plumber or Gas Fitter
when installed within the Commonwealth Of Massachusetts.
DO NOT THROW THIS MANUAL AWAY
RETAIN THIS MANUAL FOR FUTURE REFERENCE
Additional copies of this manual and prompt responses to service/maintenance questions are available
from Wood Stone @ 1-800-988-8103.
FOR YOUR SAFETY: Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this
or any other appliance. Also, always keep the area under and around this appliance free and clear of any and
all combustible materials.
It is recommended that this oven be installed, maintained and
serviced by authorized professionals.
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.
IMPORTANT: Consult your local gas supplier for a statement outlining a procedure to be followed in the event you
smell gas. Post the statement in a prominent location.

4
An ongoing program of product improvement may require us to change
specifications without notice. GFT-31, GFT-35 Revised March 2010
Wood Stone Corporation
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
Toll Free [phone]
Tel [phone]
Fax [phone]
[email protected] or visit www.woodstone-corp.com
Tandoor Installation and Operation Manual
GeneraL inForMation
UTILITY SPECIFICATIONS
Gas-
1/2 - inch NPT gas inlet (female threaded)
40,000 Btu Natural Gas or
Propane. Gas type must be specified when ordering. Gas connection
should be made using an approved flexible connector and the unit must
be restrained in accordance with all relevant local and/or national codes.
Gas connection is made beneath the unit at the rear.
Venting
This appliance must be installed under a Type 1 exhaust hood, in
accordance with all relevant local and national codes, and in a manner
acceptable to the authority having jurisdiction. Please contact Wood Stone
for more detailed information.
UNIT SHIPPING WEIGHT 750 LBS.
Top (Round Model)
Top (Square Model)
Top (Octagonal Model)
Side View
Front View
WS-GFT-31
GENERAL INFORMATION

5
An ongoing program of product improvement may require us to change
specifications without notice. GFT-31, GFT-35 Revised March 2010
Wood Stone Corporation
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
Toll Free [phone]
Tel [phone]
Fax [phone]
[email protected] or visit www.woodstone-corp.com
Tandoor Installation and Operation Manual
GeneraL inForMation
UTILITY SPECIFICATIONS
Gas- 1/2 - inch NPT gas inlet (female threaded)
40,000 Btu Natural Gas or Propane. Gas type must be specified
when ordering. Gas connection should be made using an approved
flexible connector and the unit must be restrained in accordance with all
relevant local and/or national codes. Gas connection is made beneath
unit at rear.
Venting- This appliance must be installed under a Type 1 exhaust hood,
in accordance with all relevant local and national codes, and in a manner
acceptable to the authority having jurisdiction. Please contact Wood Stone
for more detailed information.
UNIT SHIPPING WEIGHT 1,100 LBS.
Top (Round Model)
Side View
Front
Top (Square Model)
Top (Octagonal Model)
WS-GFT-35

6
An ongoing program of product improvement may require us to change
specifications without notice. GFT-31, GFT-35 Revised March 2010
Wood Stone Corporation
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
Toll Free [phone]
Tel [phone]
Fax [phone]
[email protected] or visit www.woodstone-corp.com
Tandoor Installation and Operation Manual
inStaLLation
INSTALLATION CLEARANCES
The Wood Stone gas-fired Tandoor should be installed with at
least 1-inch side clearance to combustible construction. The unit
should be installed on a non-combustible floor, or one provided
with a non-combustible covering that extends at least 36-inches
in all directions.Any combustible construction above (overhanging)
the appliance should be protected in a manner acceptable to the
authority having jurisdiction.
ENCLOSURES
If the appliance is enclosed, provisions should be made so
that the appliance can easily be removed from the enclosure.
The shaded area in the figure must be left unobstructed, for
critical combustion air, and easily accessible, for removal of the
drip/debris pan and operation of the pilot safety valve. If this area
must be covered, the cover should be easily removable and heavily
perforated.
VENTING
The Wood Stone gas-fired Tandoor must be installed under an appropriate NFPA 96 approved Type 1 exhaust hood. Refer
to local and/or national codes for hood specification requirements. The hood must be designed for the removal of the
combustion products of gas, as well as the cooking vapors related to the intended use of the oven.
Some jurisdictions may require that the Tandoor be interlocked to the hood ventilation system to prevent operation of the
appliance when the ventilation system is not turned on. If an interlock is required, use an approved gas solenoid (supplied
and installed by others), wired so that the gas supply to the appliance is turned off whenever the ventilation system is
turned off.
Combustible construction overhanging
the appliance should be protected in a
manner acceptable to the authority having
jurisdiction.
Noncombustible floor, or one protected
in a manner acceptable to the authority
having jurisdiction, extending 36 inches in
all directions
1-inch side clearance to combustible construction
!WARNING: Do Not pack required air space (clearance) with insulation or other materials.
When non-combustible building materials contact the body of the oven, the clearances to
combustibles are transferred to those non-combustibles.
INSTALLATION

7
An ongoing program of product improvement may require us to change
specifications without notice. GFT-31, GFT-35 Revised March 2010
Wood Stone Corporation
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
Toll Free [phone]
Tel [phone]
Fax [phone]
[email protected] or visit www.woodstone-corp.com
Tandoor Installation and Operation Manual
inStaLLation
GAS CONNECTION
The gas connection is made at the lower rear of the appliance - see below for details.
This appliance is equipped with casters; it must be installed using the casters supplied with a connector complying
with ANSI Z21.69 or CAN/CGA 1-6.9 and a quick disconnect device complying with ANSI Z21.41 or CAN 1-6.9.
It must also be installed with restraining means to guard against transmission of strain to the connector.
IMPORTANT: The gas supply to this appliance should be equipped with an individual appliance shutoff valve
that is capable of completely isolating the appliance from the main gas supply. This valve should be installed
in such a manner as to be readily accessible to the operator of the appliance.
The Wood Stone gas-fired Tandoor is equipped with a 1/2 - inch NPT female gas connection, located on the
underside of the rear of the unit. Anchor points for the restraining means are provided on the underside of the
Tandoor; they are holes punched in the rear portion of the drip/debris pan rails.
GAS RATINGS
The WS-GFT-35-NG is rated for 40,000 Btu Natural Gas input at a 4.0" W.C. manifold pressure.
The WS-GFT-31-NG is rated at 40,000 Btu Natural Gas Input at 4.0" W.C. manifold pressure.
The WS-GFT-35-LP is rated for 40,000 Btu Propane input at a 10.0" W.C. manifold pressure.
The WS-GFT-31LP is rated for 40,000 Btu Propane input at a 10.0"W.C. manifold pressure.
THIS APPLIANCE IS NOT FOR USE WITH SOLID FUEL
GAS CODE LIMITATIONS
The installation of this appliance must conform with local codes,or in the absence of local codes, with the National
Fuel Gas Code,ANSI Z223.1,The Natural Gas installation Code CAN/CGA-B149.1 or the Propane Installation Code,
CAN/CGA-B149.2, as applicable including: The appliance and its individual shutoff valve (supplied by others)
must be disconnected from the gas supply piping system during any pressure testing of that system at test
pressures in excess of 1/2 psi (3.45 kPa). The appliance must be isolated from the gas supply piping system by
closing its individual manual shutoff valve (supplied by others) during any pressure testing of the gas supply
piping system at test pressure, equal to or less than 1/2 psi (3.45 kPa).

8
An ongoing program of product improvement may require us to change
specifications without notice. GFT-31, GFT-35 Revised March 2010
Wood Stone Corporation
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
Toll Free [phone]
Tel [phone]
Fax [phone]
[email protected] or visit www.woodstone-corp.com
Tandoor Installation and Operation Manual
operation
1. Turn the gas control knob on the safety valve to the 'PILOT' position.
2. Push down on the knob and light the pilot immediately by pressing the red button of the spark igniter. Press the igniter
every 2 seconds until a pilot flame is established. Hold the knob down for one full minute after lighting the pilot.
3. Release the gas control knob; the pilot flame should continue to burn. If the pilot flame does not remain lit, turn the
gas control valve to the 'OFF' position, wait 5 minutes, and then repeat the steps above.
4. Once pilot is established, turn the gas control knob on the safety valve (counterclockwise) from the 'PILOT' to the 'ON'
position. NOTE: failing to turn the gas control knob to the full ON position will reduce the flow of gas, and could result in
poor ignition of the main burner.
5. Use the control knob on top of the Tandoor to control the height of the cooking flame.
Front View
Spark Igniter Button
Gas Control Knob
PILOT LIGHTING PROCEDURE
It is recommended that the Tandoor’s main burner control knob (on top of unit) be turned to the 'OFF' position when
attempting to light the pilot flame.
FIRST FIRING
The first time the Tandoor is fired, the heatup should be slow and steady. Hold the burner
at a very low flame (control valve set at '1' on models that are marked) for at least 5 hours
before gradually increasing the flame intensity. Following this procedure will safely saturate
the vessel with heat. You may notice some small "crazing" cracks in the ceramic vessel
after a few heat-ups and cool-downs; don't be alarmed; this is normal, and will not affect
the longevity or performance of the Tandoor. FIRST FIRING SETTING
Top View
Main Burner Control Knob
OPERATION

9
An ongoing program of product improvement may require us to change
specifications without notice. GFT-31, GFT-35 Revised March 2010
Wood Stone Corporation
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
Toll Free [phone]
Tel [phone]
Fax [phone]
[email protected] or visit www.woodstone-corp.com
Tandoor Installation and Operation Manual
operation
DAILY OPERATION
The Tandoor will need to be heated for approximately one hour at full flame height with the lid on. Once the vessel is at
the desired temperature, remove the cover and set the control valve to 1 1/3 (1.3) This should maintain a good starting
temperature for cooking breads and proteins. Note that this setting may vary slightly depending on gas type (NG or LP)
and other factors. The burner control knob will need to be used to adjust the heat, depending on the amount of production
required. The Tandoor will overheat if the lid is left on after heat-up.
Use of ceramic briquettes is unnecessary and will void the warranty. Seasoning for the vessel is unnecessary and will
void the warranty. Plain water may be applied with a damp cloth to the vessel before each use.
CLEANING
Debris that falls into the Tandoor will accumulate in the 'drip/debris' tray under the unit. This tray should be checked
periodically and emptied as necessary. Any accumulation of soil on the ceramic vessel can be removed (if desired) by
operating the Tandoor at full flame until the buildup is gone. The stainless cabinet, and granite top of the unit should be
cleaned as necessary, using a mild detergent and a nonabrasive scouring pad.
TYPICAL COOKING FLAME SETTING
NOTE: DISCOLORATION OF THE STONE MAY OCCUR IF THE LID IS OFF (OR PARTLY OFF) WHILE THE UNIT IS
RUNNING. THIS DISCOLORATION IS ONLY COSMETIC AND DOES NOT HARM THE UNIT FUNCTIONALLY.