Hergom Besaya Instrucciones Para La Instalación, Uso Y Mantenimiento página 61

- Curved joints can be used, which eliminates acute angles that have a negative effect
on draw.
d) Connecting to the chimney
In order to connect the cooker to the chimney, use a 90+ elbow joint attached to the
chimney outlet ring, continue with vertical ∅150mm pipes by introducing the male
coupling into the cast iron joint.
Bends and horizontal sections, which have a negative effect on draw and favour the
formation of creosote and soot, must be avoided in the vertical section of the chimney.
It is very important to seal the ring - elbow - pipe joint using refractory putty, plaster or
some other appropriate material to prevent air from seeping in.
The connection of the pipes that form the chimney, in the case of metal pipes, must be
sealed during assembly with the male coupling facing downwards. This will prevent
any creosote that forms inside from leaking out.
This advice must be followed whenever wood or coal is used as fuel.
e) Some rules
We shall now explain a number of rules that should be followed when building a
chimney:
a) Use resistant, fireproof materials. Do not use cement asbestos
pipes in the first 2-3 metres.
c) Choose the most vertical route possible. Do not connect several
devices to the same chimney.
c) The conduit should not come to an end near buildings and must be higher than the
nearest obstacle if there is another building nearby.
Fig.-2