HWAM 3310 Manuel D'utilisation page 50

Connecting the chimney, drawing C
HWAM 3310 and HWAM 3320 are supplied with a top or rear outlet. This may be connected to
either an approved steel chimney or a brick chimney.
Make sure that the chimney is tight and that no false draft is caused around neither the cover plate,
in connection with a covered smoke outlet, nor the cleanout door and pipe connections. Please note
that bent and/or horizontal smoke pipes will reduce the effect of the chimney draft.
Drawing C shows a vertical section of the smoke flue.
1. Steel chimney.
2. Fullform pipe. Fits inside the stove's flue duct socket.
3. Wall.
4. Built-in pipe sleeve. Fits the fullform pipe.
5. Wall rosette. Covers wall repairs around the pipe sleeve.
6. Joint. Sealed with packing material.
7. The HWAM stove's flue ducts.
8. Regulating damper in fullform pipe.
9. Soot door.
Chimney
The chimney is the stove's 'engine' and crucial for the functioning of the stove. The chimney draught
provides a vacuum inside the stove. This vacuum removes the smoke from the stove, sucks air through
the damper to the so-called window rinse which keeps the window free from soot, and draws in air for
the combustion through the primary and secondary dampers.
The chimney draught is created by the difference between the temperatures inside and outside the
chimney. The higher the temperature inside the chimney, the better the draught. It is therefore crucial
to properly warm up the chimney before closing the dampers and limiting the combustion in the stove
(a brick chimney takes longer to warm up than a steel chimney). On days where the weather and wind
conditions create insufficient draught inside the chimney, it is even more important to warm up the
chimney as quickly as possible. The trick is to quickly get some flames going. Split the wood into extra
fine pieces, use an extra firelighter, etc.
If the stove has not been used for a longer period, it is important to check that the chimney pipe is
not blocked.
It is possible to connect several devices to the same chimney. However, it is important to first check
the applicable rules.
Even a good chimney may work poorly if it is used incorrectly. Similarly, a bad chimney may work well
if used correctly.
Chimney sweeping
To prevent the risk of chimney fires, the chimney must be cleaned every year. The flue duct and the
smoke chamber above the baffle plate must be cleaned together with the chimney. If the chimney is
too tall to be cleaned from above, it must be equipped with a soot door.
In case of a chimney fire, close all dampers and call the firefighters. Before any further use, have the
chimney checked by the chimney sweeper.
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