Supply Of Combustion Air - ADURO H3 LUX User Manual

used for Aduro stoves. Aduro H1 & H3 LUX is tested and approved for use with an uninsulated fluepipe of
minimum 100 cm.
2.3 Connection to a brick chimney
If the stove is being connected to a brick chimney, the rear outlet should be used, or a curved flue pipe via
the top outlet. After measurement, a hole is made in the chimney in which the pipe sleeve is placed and
fireplace 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).
The Aduro H1 & H3 LUX 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 H1 & H3 LUX 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 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 25 m3/h.
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 a stronger fan (Aduro Air Booster) or
even better: 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 pipework 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
55