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2.1 PELLETS
Wood pellets are manufactured by hot-extruding compressed sawdust which is
produced during the working of natural dried wood. The compactness of the material
comes from the lignin which is contained in the wood itself, and allows the
production of pellets without the use of glues or binders.
The market offers different types of pellet with characteristics which
vary
depending on what mixture of woods is used. The diameter varies between 6 mm,
with a standard length in the range 5 mm to 30 mm. Good quality pellets have a
density which varies between 600 kg/m3 and 750 kg/m3, with a moisture content
which varies from 5% to 8% by weight
We advice 6 mm pellets to be used.
The poorer the quality of the fuel, the more frequently will
intervention be necessary for cleaning
the internal parts, such
as the grate and the
combustion chamber.
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