12
CHIMNEY
Your wood stove may be hooked up with a factory built or masonry chimney. If you are
using a factory built chimney, it must comply with UL 103 or ULC S629 standards;
therefore it must be a Type HT (2100°F). It is extremely important that it be installed
according to the manufacturer's specifications.
If you are using a masonry chimney, it is important that it be built in compliance with the
specifications of the National Building Code. It must be lined with fire clay bricks, metal or
clay tiles sealed together with fire cement. (Round flues are the most efficient).
The interior diameter of the chimney flue must be identical to the stove's smoke exhaust.
A flue which is too small may cause draught problems, while a large flue favours rapid
cooling of the gas, and hence the build-up of creosote and the risk of chimney fires. Note
that it is the chimney and not the stove which creates the draught effect; your stove's
performance is directly dependent on an adequate draught from your chimney.
The following recommendations may be useful for the installation of your chimney:
1. Do not connect this unit to a chimney flue serving another appliance.
2. It must rise above the roof at least 3' (0.9 mm) from the uppermost point of
contact.
3. The chimney must exceed any part of the building or other obstruction within a
10' (3.04 m) distance by a height of 2' (0.6 m).
4. Installation of an interior chimney is always preferable to an exterior chimney.
Indeed, the interior chimney will, by definition, be hotter than an exterior
chimney, being heated up by the ambient air in the house. Therefore the gas
which circulates will cool more slowly, thus reducing the build-up of creosote
and the risk of chimney fires.
5. The draught caused by the tendency for hot air to rise will be increased with an
interior chimney.
6. Using a fire screen at the extremity of the chimney requires regular inspection in
order to insure that it is not obstructed thus blocking the draught, and it should
be cleaned when necessary.