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3.5 - FUEL
3.5.1 - FUEL CHARACTERISTICS
Pellets are a compound consisting of various types of wood
pressed using mechanical processes in compliance with envi-
ronmental protection regulations, and are the only fuel for this
type of stove.
It may vary depending on the type and quality of the raw ma-
terial used.
The material used may not contain any foreign substances
such as glue, lacquer or synthetic substances.
After the sawdust has been dried and cleaned of impurities, it
is pressed through a die: due to the high pressure, the sawdust
heats up, activating the wood's natural binders; in this way, the
pellets retain their shape even without the addition of artificial
substances.
The density of wood pellets varies depending on the type of
wood and can exceed that of natural wood by 1.5 to 2 times.
The small cylinders have a diameter of 6 mm and a length of
between 10 and 40 mm.
Their density is approximately 650 kg/m3. Due to their low wa-
ter content (< 10%) they have a high energy content.
The main quality certifications for pellets on the
European market ensure that the fuel is class A1
according to ISO 17225-2: 2021.
Examples of these certifications are e.g. ENPlus, DINplus,
Ö-Norm M7135, and ensure that the following characteristics
in particular are met:
•
calorific value: 4,6 - 5,3 kWh/kg;
•
water content: ≤ 10% by weight;
•
ash content: max 1.2% by weight (A1 less than 0.7%);
•
diameter: 6±1/8±1 mm;
•
length: 3-40 mm;
•
content: 100% untreated wood without any added binding
substances (bark percentage max. 5%);
•
packaging: in bags made of eco-friendly material
For safety reasons, operation with conven-
tional wood and no fuel other than the pellets
for which the product was designed and certi-
fied is not possible, under penalty of immedi
-
ate forfeiture of the conventional warranty and
safety for the user.
It is forbidden to use the stove as a waste in-
cinerator.
3.5.2 - PELLET STORAGE
The pellets must be stored in a dry and not too cold environ-
ment.
We recommend storing a few bags of pellets in the room where
the stove is to be used or in an adjoining room as long as it is
at an acceptable temperature and humidity.
Wet and/or cold pellets (5°C) reduce the heat output of the fuel
and oblige more maintenance to clean the brazier (unburnt ma-
terial) and the firebox. In addition, wet pellets cause ignition de
-
lays, resulting in the risk of gas formation and related bursting.
Take special care when storing and handling bags of pellets.
Shredding and the formation of sawdust must be avoided.
If sawdust is fed into the stove hopper, this may cause the pel-
let loading system to block.
The use of poor-quality pellets may impair the normal operation
of the pellet stove and lead to the voiding of the warranty.
3.5.3 - PELLET LOAD
The stove is equipped with a pellet holding hopper of the ca-
pacity indicated in the table of characteristic data in the Use
and Maintenance Booklet.
The loading compartment is located at the top
(12)
. It must
always be open in order to be able to load the pellets and must
remain closed while the stove is in operation.
Fuel is loaded at the top of the stove by sliding the stove top
and lifting door
12
. Slowly pour in the pellets so that they sink
to the bottom of the hopper.
When loading pellets, avoid the pellet bag
coming into contact with hot surfaces.
Never remove the protective grate inside the
hopper.
Do not put any fuel in the hopper other than
pellets meeting the above specifications.
Store reserve fuel at an adequate safety dis-
tance.
Do not pour the pellets directly onto the bra-
zier but only into the hopper.
During operation and shutdown, most of the
stove's surfaces are very hot (door, handle,
glass, smoke outlet pipes, etc.); avoid contact
with these parts.
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