Rizzoli ZV 60, Instructions Manual

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ENGLISH
73
3. USE
During the working, inside the cooker hap-
pens a combustive reaction of combustible
(the wood inserted in the combustion cham-
ber) and burning (the oxygen present in
the air of the room in which the cooker is
placed). The wood fired cooker makes an
intermittent combustion: after the lighting,
the combustion goes on till the exhaustion
of the combustible but it can be maintained
lighted by making another load of combus-
tible and so on.
The maintenance of the combustion in
time is guaranteed by the correct working
of the chimney, which allows to evacuate
the fumes and in the same time to feed the
flame with comburent air. In this way, the
features of the chimney have a big influence
on the correct working of the cooker.
The combustion of wood requests that the air flow inside the combustion cham-
ber happens in different points to obtain
the maximum efficiency. In particular, it is
present a primary air feeding that flows in
the lower part of the combustion chamber
by the grill, and one or more secondary
air feedings that flow in the upper part of
the combustion chamber. The primary air is
the main air and regulates the combustion
speed. The secondary air
allows the post-combustion of the fumes,
generating further heating, knocking down
the amount of harmful gas and so improv-
ing both the rendering and the impact on
the environment. Once started the combus-
tion it cannot be interrupted in a safe way: it
must be always faded out naturally with the
exhaustion of all the combustible inserted.
3.1 WORKING OF THE COOKER
Picture 16 - Starting key. With lever outside, the key is open and the starting is easier; with lever inside the key is closed
for the normal working
To allow an easier lighting of the cooker
with cold chimney, wood fired cookers are
endowed with starting key governed by a
rod: if you extract this rod, the key opens.
The opening of the key creates a direct con-
nection between the combustion chamber
and the chimney, in order to obtain a better
draught. To light the fire, you can use well
dried wood, very subtly cut, together with
the specific products you can find in com-
merce. The combustion may be difficult as long as the chimney is cold. The necessary
time depends on the chimney and on the
weather conditions. When the fire becomes
powerful you must turn off the key in order
to force the fume to heat the other parts of
the cooker. The cooker is designed to work
with the key turned off, the use with the key
opened does not allow the cooker to work
at its best and may cause overheating and
consequent damages.
3.2 STARTING