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NOTE! Use of fuels other than recommended by the manufacturer
may damage the feeder resulting in a loss of a warranty for a given
feeder.
It is forbidden to burn plastic materials; this may result in damage to the
furnace. Contamination of the heat exchanger surface leads to reduced
boiler efficiency and deterioration in the burning process. It is forbidden to
use flammable materials (such as petrol, kerosene, or solvents) for boiler
firing, as this may result in a fire or explosion.
The density determines fuel durability, wear and formation of pulp;
therefore, too low density may result in blocking of the feeder mechanism.
It is forbidden to use fuel of moisture content exceeding that speci-
fied in the table. Fuel with high water content may hinder correct burning
process and result in damage to the screw, the feeder or the fuel tank
(premature corrosion).
Additionally, providing the furnace with an ash-removal system based
on moving fire bars allows use of fuels with a tendency to form slag.
Correct biomass selection not only guarantees economic fuel con-
sumption (effective burning), but also reduces time required for boiler op-
eration. Use of the recommended fuel type and grade ensures correct and
failure-free operation of the feeder and the boiler, economic fuel consump-
tion versus pellet of poor quality, as well as reduces emissions of harmful
compounds during the burning process.
Fuel of poor quality parameters (high water content, low calorific value,
presence of stones, etc.) may cause problems with selection of settings
for optimum boiler operation, leading to formation of sinter on the furnace
and high fuel losses with ash.
NOTE: The fuel tank should be loaded with fuel free of water and
excessive quantities of fine fractions or foreign bodies! High water
content and contaminations delivered to the feeder with the fuel have
a negative effect on the hopper life!
Use fuels recommended by the manufacturer (possibly certified)!
A fuel storage place should be secured against weather conditions.
For this purpose, a roofed, dry and ventilated place must be prepared.
The fuel storage surface should be sufficient for fuel storage for the whole
heating season.
