WETT Inspectors are Certified by the Wood Energy Thermal Transfer, which is a non-profit organization that is used by most insurance companies. WETT requirements are taken from CSA, Building Code and Fire Code regulations.
In Canada every chimney must be installed in accordance with B365-01 and the National Building Code or Provincial Building Code applicable to where you are installing appliance. Except when certified for use with a specific chimney or venting system a solid fuel burning appliance shall be connected to a masonry chimney conforming to provincial regulations or, in the absence of such regulations the requirements of the National Building Code or use a Certified Factory Built chimney.
The flue of a chimney may be different cross-sectional area than that of the appliance flue collar provided that sufficient draft is available at the appliance. A solid fuel appliance shall not be connected to a chimney that serves a natural gas or propane fired device.
Two or more appliances shall not be connected to the same chimney flue unless; (a) the appliances are located on the same storey; (b) a negative pressure is maintained at the flue collar of each appliance; (c) each appliance is provided with a means to control the rate of flow or flue gases through the appliance combustion and heat exchange chambers. Where limitations on flue pressure are contained in the manufactures instructions, such means shall be capable of maintaining, at the flue collar, the pressure specified in the manufactures instructions.
If using a Thimble it shall be securely fastened to the chimney by means of refractory mortar to prevent displacement. A flue pipe may be reduced in cross-sectional area from that of the appliance flue collar, provided that sufficient draft is available for the appliance. When a flue pipe is passing through a thimble, the female end of the flue pipe shall reach but not protrude beyond the interior surface of the flue. The male end of the flue pipe shall extend beyond the thimble by at least 30 mm. A flue pipe or manifold serving one or more solid-fuel-burning appliances shall be constructed of steel or other approved noncombustible material with melting point of not less than 1100 degrees Celsius. Galvanized steel shall not be used.
A WETT inspection is only recognized by your insurance company. If you are constructing a masonry fireplace or chimney you will need a building permit and have to have the construction inspected prior to enclosing with brick.
In Canada every chimney must be installed in accordance with B365-01 and the National Building Code or Provincial Building Code applicable to where you are installing appliance. Except when certified for use with a specific chimney or venting system a solid fuel burning appliance shall be connected to a masonry chimney conforming to provincial regulations or, in the absence of such regulations the requirements of the National Building Code or use a Certified Factory Built chimney.
The flue of a chimney may be different cross-sectional area than that of the appliance flue collar provided that sufficient draft is available at the appliance. A solid fuel appliance shall not be connected to a chimney that serves a natural gas or propane fired device.
Two or more appliances shall not be connected to the same chimney flue unless; (a) the appliances are located on the same storey; (b) a negative pressure is maintained at the flue collar of each appliance; (c) each appliance is provided with a means to control the rate of flow or flue gases through the appliance combustion and heat exchange chambers. Where limitations on flue pressure are contained in the manufactures instructions, such means shall be capable of maintaining, at the flue collar, the pressure specified in the manufactures instructions.
If using a Thimble it shall be securely fastened to the chimney by means of refractory mortar to prevent displacement. A flue pipe may be reduced in cross-sectional area from that of the appliance flue collar, provided that sufficient draft is available for the appliance. When a flue pipe is passing through a thimble, the female end of the flue pipe shall reach but not protrude beyond the interior surface of the flue. The male end of the flue pipe shall extend beyond the thimble by at least 30 mm. A flue pipe or manifold serving one or more solid-fuel-burning appliances shall be constructed of steel or other approved noncombustible material with melting point of not less than 1100 degrees Celsius. Galvanized steel shall not be used.
A WETT inspection is only recognized by your insurance company. If you are constructing a masonry fireplace or chimney you will need a building permit and have to have the construction inspected prior to enclosing with brick.
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