FARMAKOM M.B. LAVA, Руководство по установке

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4 THE FLUE
Special attention must be paid to the quality of the flue which must be made in accordance with the
standards. The flue must be regularly maintained. The stove is connected to the flue through a
connection on the upper or back side of the stove, by the appropriate smoke pipes. The smoke pipe
must not be positioned too deep in the flue so as not to decrease the surface of the cross-section and,
in that manner, disturb the draft in the flue.
The draught in the flue
An inadequate draught is exclusively the main reason behind most complaints of poor stove
operation! Necessary draught for this type of stove is 12 Pa.
A lower value does not permit proper combustion with the consequent formation of carbon deposits
and excessive production of smoke, which, being unable to flow to the exterior will escape through
the grills or door.
If the draught value is too high, combustion will be too fast, with the consequent dispersion of the
heat through the flue. If the draught is greater than 15Pa, the elements for draught reduction should
be installed.
The signs of a bad draught are:
−
dirty glass, boiling handle
−
smoke coming out into the room
4.1 General characteristics
Add chimney sections, according to the manufacturer’s installation instructions. The chimney must extend at
least, 3 feet above its point of contact with the roof and at least 2 feet higher than any wall, roof, building or
obstacle within 10 feet horizontally.
The chimney guarantees the conveyance of the fumes outwards even when there are strong
horizontal winds and stops them from being blown back down the chimney.
Bad maintenance of chimney is the cause of flue obstruction, due to the breaking and detachment of
plaster, refractory bricks etc. of which the flue is made, as well as due to the combustion product
deposits and intrusion of foreign objects.
Chimney must have sufficient heat insulation, otherwise it can lead to condensation.
The internal parts of the whole flue should have a smooth surface, and the material used should be
refractory and resistant to their degree of acidity, and should be impermeable to gases.