EdilKamin DOUBLE Installation, Usage Et Maintenance page 17

Smoke channel
The conduit which connects the hearth
smoke outlet mouth with the flue inlet is
called smoke channel.
The smoke channel must be made with stiff
steel or ceramic pipes, flexible metal or
fibre-cement pipes are not allowed.
Horizontal or counterslope tracts must be
avoided.
Eventual section changes are allowed only
at the chimney outlet and not, for example,
at the coupling in the flue.
Slants of more than 45° are not allowed.
A mastic sealing at high temperature must
be carried out in correspondence of the
inlet point of the steel flue on the chimney
smoke outlet mouth.
Further to the above, bear in
mind the indication of the UNI
10683/2005 rule in paragraph
4.2 "connection to the smoke
evacuation system" and sub-
paragraphs.
To facilitate the realisation of
the smoke channel, EDILKAMIN
supplies steel components for easy
and correct connection.
Smoke fitting with butterfly
valve
It is advised to insert a butterfly valve (gate)
on the smoke channel. The valve must be
easily manoeuvred and its position must
be identified from the outside, from the
regulating handle. The valve must remain
fixed in the prearranged position and must
not close automatically. An opening must
be provided on the valve not lower than 3%
of the section surface and, however, must
be at least equal to 20 cm .
2
Max. 45°
Flue and chimney pot
The conduit which, from the room with the
chimney reaches the building covering, is
called flue.
The fundamental features of the
flue are:
- capability to support a smoke temperature
of at least 450°C with regard to the
mechanical resistance, insulation, and gas
hold
- being correctly insulated to avoid the
forming of condensation
- have constant section, almost vertical flow
and not slant more than 45°
- have preferably circular internal sections;
in case of rectangular sections, the max.
ratio between the sides must be equal to
1.5
- have an internal section with a surface
at least equal to the one reported on the
product technical board
- service only one hearth (chimney or stove).
Piping using stainless steel pipes of
appropriate size and ideal insulation is
suggested for flues which are old or too
large.
The chimney pot fundamental
features are:
- basic internal section equal to the one of
the flue
- outlet section not less than double that of
the flue
- position in full wind, above the roof and
outside the reflux areas.
17