3. DESCRIPTION OF A STRUCTURE
The boiler (fig. 2.1.) is a steel cylinder covered by a steel cylinder of a bigger diameter, a
structure isinsulated. Bi-thermal draught regulator (2) is at the front side of the boiler (see for details
item No. 8.2). Heated water is between the cylinders. A structure has openings for loading of solid fuel
(8), ash removal (11) and smoke extraction flue (5). There are also openings for water supply (14 - 15),
thermometer (16) and pressure safety valve (17). Air heating compartment (4) for the improvement of
combustion quality and heating transmission is mounted on the upper part of a combustion
compartment. The boiler can be configured with grid bars and switching valve (6) for burning with
peat or coal.
There is a gap between a heating compartment and boiler walls through which smoke pours
so that the heat would be better transmitted. A telescope air feeding pipe (7) fits into a compartment
at the end of which the air distributor is fixed (9).
An opening for air injection and regulating valve (1) is at the upper part of a compartment. Upon
request, a concrete bottom with an insulating band is configured with the boiler (18). Lift cable (12)
with a ring of the air feeding mechanism is placed at the right side of the boiler in front of the door (a
fixing hook (13).
The purpose of the air distributor is to distribute correctly the air in the generation zones
below and near the air distributor, at the combustion zone near and above the distributor. Air
distributor leans upon the side firewood logs which do not get heated up to a high temperature.
It is no allowed to move a distributor during the combustion: after moving the air distributor up
and down, it turns and sinks deep into the combustion place and then the boiler operation is
uneconomic, its parts worn out more.
4. TRANSPORTATION AND WAREHOUSING
Boilers are allowed to be transported unfastened only in a horizontal position. If it does not rain,
it is allowed to transport with an open transport, in other cases it must be transported with a covered
transport. When transporting in a vertical position additional protection measures must be taken so that
the boilers won‘t fall and scratch. Boilers can be stored in dry premises free of chemical active agent
steam.
5. BOILER FITTING
The boiler is fitted in the premises corresponding to the state requirements established for the
premises of boiler houses.
Premises where a boiler will be fitted must be at least 215 m in height and with concrete flooring
(at least in that place where the boiler will be erected). Premises must be made watertight and protected
from heated residential rooms and would have a vertical ventilation channel and window or opening in
the outside wall so that he air from outside would pass into the boiler and ventilation channel.
Using a mirror examine the inside of the chimney flue through the chimney flue cleanup opening.
The chimney flue must be clean. There must be no fittings nor bird nests and unsealed openings
leading to cavity ceilings and adjacent mines. It is verified whether the chimney flue does not have
openings or cracks in the outside through which the parasitic air can pass which will cool the chimney
flue and reduce its draught. Cracks, openings and a place where the boiler is connected to the chimney
flue must be sealed. If there are inner openings in the chimney flue leading to ceilings or adjacent
mines/shafts and there is no possibility to repair them, an oval or cylinder insert of stainless steel must
