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TECHNICAL PASSPORT. INSTALLATION and OPERATION MANUAL
TECHNICAL PASSPORT. INSTALLATION and OPERATION MANUAL
3. FUEL
All pellets are biomass manufactured
from common low-growing plants and
trees. The most common household type
pellets are made of sawdust and milled
wood chippings which are waste material
from wood used in the producon of logs,
furniture and other products. Wood is the
richest raw material which does not have
any impact on the producon costs of
food products or ethyl alcohol (ethanol).
The raw material is processed under high-
pressure and temperature and is pressed
to produce small-size cylindrical pellets.
The producon process may ulize so
wood material (such as sowood, pine),
hardwood (oak) as well as recycled waste
wood. Wood pellets are produced in
hammer mills or wood pellet plants.
Advantages of wood pellets:
Convenient storage. Pellet bags can be
stored on a small area in a dry garage,
basement, service room or shed.
Easy loading. In most cases the boiler
hopper needs loading only once a week –
this depends on the hopper capacity.
Beer control of fuel quanty. The small
size of the pellets allows for precise fuel
feeding. On the other hand, the supply
of air for reaching opmal combuson
eciency is easier to adjust since the
fuel quanty in the combuson chamber
remains constant and predictable.
Fuel eciency. High combuson eciency
is also determined by consistently low
moister content of pellets (consistently
under 10% as opposed to 20% to 60%
moisture content of the logs). Low
moisture content, controlled fuel
porons and precise air seng means
high combuson eciency and very low
carbon oxides in the ue gases.
i
When purchasing pellets, ask
for conformity declaration and
certificate issued by an accredited
laboratory and make sure the
fuel meets the requirements
indicated in the manual. If
you purchase large amount of
pellets (bulk supply for the entire
heating season for example), ask
your supplier to provde accurate
and true information about the
storage conditions.
We recommend to use pellet with size of
6 - 8mm. Density 600 - 750kg/m3 heang
value 4.7 - 5.5 kWh/kg. Ash content – less
than 1% and moisture content up to 8%,
EN ISO 17225-2:2014.
The opmal density of the pellets which
guarantees their quality is 605-700 kg per
cubic meter.
Pellet moisture content must not exceed
10%. Make sure you store your fuel in a
dry and well-venlated place.
The opmal pellet ash content is ≤ 1%.
This also provides for less frequent
cleaning intervals for the burner.
The table below contains the parameters
which we recommend that you take into
consideraon when choosing fuel for your
„Pell” burner.