ADURO 22 Mode D'emploi page 38

2.3 Connection to a brick chimney
If the stove is being connected to a brick chimney, the rear outlet or a curved flue pipe via the top outlet
should be used. After measuring, a hole is made in the chimney in which the pipe sleeve is placed and stove
mortar is used to seal it in place. The stove is placed in position and the flue pipe is put in place. A thin
gasket is placed between the flue pipe and the pipe sleeve to seal the joints. The flue pipe should protrude
into the pipe sleeve, but must not block the opening in the chimney (see the illustration below):
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The stove can be connected to a chimney to which other heat sources are connected.
2.4 Supply of combustion air
All wood burning stoves need constant supply of air to ensure a clean and efficient combustion. This is often
a problem in modern energy-efficient houses that are very tight. Therefore, the Aduro 22 series is equipped
with external supply of combustion air, where the air to the combustion is supplied from the outside and
directly into the wood burning stove. Air from the outside can be provided through a channel, which is
connected to the connecting pipe under the combustion chamber. The amount of air needed for combustion
is 25m3/h. Air vents must be positioned where they cannot be blocked.
The connecting pipe has an external diameter of 78 mm, to which you need a pipe with a diameter of 80 mm.
If the pipework is more than 100 cm, or if there are bends on the tube, the resistance in the pipe increases
significantly. Negative pressure outside on the sheltered side of the house can also affect the resistance of
the pipe significantly. In these situations, the pipe should have a diameter of minimum 100 mm. It may also
require a stronger chimney draft, which you can achieve by installing an Aduro DraftOptimizer. You can
easily test the resistance in the pipe by opening a window close to the stove, disconnect the external air
supply and then light up the stove. If the combustion looks different than before, there is too much resistance
in the external air supply. If the pipe work is further than 1 m, the pipe diameter must be increased to 100
mm and a correspondingly larger wall valve must be chosen. In warm rooms the channel should be insulated
with 30 mm mineral wool covered with a damp-proof course (plastic). It is important that the lead-in between
the pipe and the wall (or floor) is sealed with jointing compound. You can eventually use the complete Aduro
fresh air kit.
The pipe with external supply of combustion air can be taken out at the bottom of the back side of the stove
or under the stove (see illustration below):
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