14
1.5.3.2 Chimney
Systems
The minimum chimney size is 6" (152 mm) in diameter. The minimum overall height of the chimney
system, measured from the base of the appliance is 12' (3.66m). Existing masonry and metal chimneys
should be inspected to check for deterioration and to determine if they meet the minimum installation
requirements; they should be upgraded if necessary. In Canada, masonry chimneys must have or use a ULC
S635 listed Class III liner in chimney systems that are not ULC S629 listed. Similarly in the USA a UL
1777 listed refractory or metallic liner must be used. At the point of penetration through the roof to the
outside of the building envelope, the chimney must extend at least 3' (914 mm) above the roof and at least
2' (610 mm) above the highest point within an area of 10' (3 m) of the chimney (see Figure 1.3).
Follow CSA Standard B365-M91 for methods and precautions to be employed when connecting the stove
to a masonry chimney, and for installing thimbles (wall penetration assemblies) when the connection from
the stove to the masonry chimney is made through a combustible wall.
When connecting to a factory built chimney, ensure that it is installed according to the manufacturer's
listed instructions. If using an existing chimney, inspect and clean the chimney if required (this should be
done by a licensed chimney sweep or a qualified professional).
Avoid 90 degree eblows
We recommend that you use
two 45 degree elbows instead
