
PG 11 OF 24
M0304.02 DECEMBER 2019
Wood-Fired Mountain Series CE
Installation and Operation Manual
VENTING
THIS MODEL MUST BE VENTED AS A SOLID FUEL APPLIANCE
Wood Stone ovens should be vented in accordance with pertinent national, regional and local codes concerning such appliances;
check venting plans with the authority having jurisdiction before proceeding with installation�
The above statement taking precedence, Wood Stone Corporation recommends the following two venting options:
1. This Wood Stone Mountain Series oven can be vented as a Type A appliance (with no flue connection), designed to be installed
under an exhaust hood (canopy)� The hood must be connected to a grease-rated duct system� The venting system must be
designed and installed in accordance with all relevant codes pertaining to grease and smoke producing commercial cooking
appliances, and vented separately� There may be requirements for interlocking the oven or its gas supply with the ventilation
system� Check with your local code official� Airflow should be adjusted according to the requirements specified by the hood
manufacturer and/or local codes�
OR
2. The oven is also approved as a Type B11 appliance, designed to be connected directly to a chimney which is installed in
accordance with all relevant local and national codes� The chimney system must be installed and constructed to the same
requirements as a duct that serves grease and smoke producing commercial cooking appliances� It is never appropriate to
use “B vent” in any part of an exhaust system connected to a Wood Stone oven� All ducting material must be manufactured
to the specifications of a grease duct� If venting the oven with this method, the oven must be vented independently of other
equipment� A suitable fan should be used at the end of the duct run to ensure proper draft in all conditions� Wood Stone does
not recommend using an in-line type fan� When installed, the fan speed/air flow should be adjusted to attain the appropriate
duct pressure, or airflow rate, at the oven flue collar (see Duct Pressure section below)�
This oven should be vented in accordance with codes concerning solid fuel appliances� Due to the dangers of creosote buildup
and sparks entering the duct, these models should be vented separately from all other kitchen equipment or in such a manner
acceptable to the authority having jurisdiction�
Solid fuel exhaust contains creosote and other substances that accumulate in ducting, creating a risk of 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�
Wood Stone recommends cleaning and inspection at least monthly on any ventilation system serving solid fuel
equipment.
WOOD STONE RECOMMENDS THAT THE OPERATOR REFER TO THE EXHAUST HOOD
MANUFACTURERS FOR INSPECTION, MAINTENANCE AND CLEANING.
AIRFLOW REQUIREMENTS (DIRECT CONNECT)
Model Airflow Requirement
WS-MS-4-W-CE �20 m3/sec (420 cfm)
WS-MS-5-W-CE
�24 m3/sec (500 cfm)
WS-MS-6-W-CE
WS-MS-7-W-CE �26 m3/sec (550 cfm)
DUCT PRESSURE
• For any oven utilizing solid fuel: 0.35 mbar (0.14" W.C.)
This pressure may be checked by inserting the pressure test
probe up through the oven doorway to the point where the
duct is connected to the oven flue collar�
FAN TEMPERATURE RATING
The fan must be of a suitable temperature rating�
For ovens utilizing solid fuel, the fan must be rated for a
minimum of 232 °C (450 °F) continuous�
INTERLOCK SYSTEM
There may be requirements for interlocking the oven or its gas
supply with the ventilation system� Check with your local code
official�
Install the venting system in accordance with the
duct manufacturer’s instructions and in accordance
with all local codes� All field built components should
be built to the applicable codes and standards and
are subject to the approval of the authority having
jurisdiction�