Chapter 2
USE AND MAINTENANCE MANUAL
page
10
Installation recommendations in compliance with UNI 10683
Technical dept. - All rights reserved by MCZ GROUP S.p.A. - Reproduction
prohibited
2.5.
FLUE PIPE CONNECTION
The flue pipe connection is extremely important, and it should be
performed carefully and attentively. Stoves have a top or rear smoke
outlet.
The smoke outlet pipe must be fitted in such a way as to guarantee its
seal during the appliance's vacuum operation and avoid the formation
and conveying towards the stove of any condensation.
Any manual draught control devices inserted in the pipe should not
hermetically seal the internal section of the duct. These shutters should
be equipped with a suitable mechanism to avoid the complete rotation
of the valve in the closed position. The minimum safety opening surface
must be 3% of the through cross-section, and not less than 10 cm². If
the smoke duct has a horizontal section, the same should rise with a
minimum slope gradient of 3-5% (3-5 cm for every metre).
The tilted horizontal part should not be longer than 2 linear
metres.
The use of flexible pipes and fibre cement pipes is
forbidden. The smoke pipe must not cross rooms in
which it is forbidden to install combustion
appliances. The use of counter-sloping pipes is
forbidden.
2.6.
FLUE PIPE
The flue pipe is
vital
for the disposal
of smoke and should therefore
comply with the following requisites:
Be waterproof and thermally insulated.
Be made of suitable heat-proof materials, resistant to the
effects of the combustion products and any possible
condensation.
Have a prevalently vertical arrangement with deviations from
the axis of no more than 45° and without kinks.
must be suitable for the specific operating conditions of the
product and marked EC (EN1856-1, EN1443).
must be suitably sized to accommodate the draught/smoke
disposal requirements necessary for the correct functioning of
the product (EN13384-1).
Have an internal section which is preferably circular.
If it is existing and has operated beforehand, it should be
cleaned.
The flue pipe is vital for the correct functioning and
safety of your stove.
Typical diagram of a correctly laid flue pipe
with, at the foot of the external rising
section, the positioning of a chamber with a
sealed hatch to collect and remove the solid
materials produced during combustion.
Flue pipe connection example
Chimney
Flue pipe
External air
inlet
Smoke union
MAX 2 mt.
3 - 5 %