CHIMNEY INSTALLATION
CHIMNEY
Your wood furnace may be hooked up with a factory built or masonry chimney, matching the diameter of the exhaust. If you are
using a factory built chimney, it must comply with UL 103 or CSA-B365 standard; therefore it must be a Type HT (2100°F). It is
extremely important that it be installed according to the manufacturer’s speci
fi
cations.
If you are using a masonry chimney, it is important that it be built in compliance with the speci
fi
cations of the National Building
Code. It must be lined with
fi
re clay bricks, metal or clay tiles sealed together with
fi
re cement. (Round
fl
ues are the most ef
fi
cient).
The interior diameter of the chimney
fl
ue must be identical to the furnace smoke exhaust. A
fl
ue which is too small may cause
draft problems, while a large
fl
ue favors rapid cooling of the gas, and hence the build-up of creosote and the risk of chimney
fi
res.
Note that it is the chimney and not the furnace which creates the draft effect; your furnace’s performance is directly dependent on
an adequate draft from your chimney.
Do not connect this unit to a chimney
fl
ue serving another appliance.
The following recommendations may be useful for the installation of your chimney:
•
It must rise above the roof at least 3’ (0.9m) from the uppermost point of contact.
•
The exterior portion should be double or triple wall pipe to ensure proper draft.
•
The chimney must exceed any part of the building or other obstruction within a 10’ (3.04m) distance by a height of 2’ (0.6m).
•
Installation of an interior chimney is always preferable to an exterior chimney. The interior chimney will be hotter than an
exterior chimney that is being cooled by the ambient air outside the house. Therefore the gas which circulates will cool slower,
thus reducing the build-up of creosote and the risk of chimney
fi
res.
•
The draft caused by the tendency for hot air to rise will be increased with an interior chimney.
• Using
a
fi
re screen at the extremity of the chimney requires regular inspection in order to insure that it is not obstructed thus
blocking the draft, and it should be cleaned when used regularly.
