Hergom E-20 N Instrucciones Para La Instalación, Uso Y Mantenimiento página 30

 Do not connect to chimneys that have other uses. The operating safety of the other
applications will be compromised.
 The place where the stove is to be installed should have a sufficient entrance of air to meet
the air requirements of the appliance. Excessively insulated houses may produce the
improper operation of the chimney and even inverse flues which bring the vapours inside
the building, for example when the cooker extractor is in operation. In this case, it is
necessary to make a special air entrance from the exterior of the building to feed the
appliance.
1.2.4- EXTERNAL FACTORS WHICH INFLUENCE THE CHIMNEY FUNCTIONING:
There are other factors which affect the flue:
 Internally insulated, draught-free homes: as insufficient air enters the appliance, the flue is
poor. This is corrected by allowing the entrance of air to the stove from outside.
 Trees and/or tall buildings close to the dwelling.
 The speed of the wind. In general, strong, continuous winds increase the flue; but gusty
winds produce a reduction in the flue.
 The difference in internal / external temperatures. The colder it is outside, the better the
flue.
 Barometric Pressure. On rainy, wet or stormy days, the flue is generally weak.
 Briskness of the fire. The hotter the fire is, the stronger the flue.
 Cracks in the chimney, poorly sealed or dirty doors, air intakes due to the joining of pipes,
other appliances connected to the chimney, etc. may produce inappropriate flues.
1.2.5- SOME STANDARDS
Below are other standards that must be respected when building the chimney:
a) Use resistant and non-combustible materials.
tubes.
b) Choose a route that is as vertical as possible. Do not connect various appliances to
the same chimney.
Do not mount cement asbestos
Fig.-4
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