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3. BRIEF INFORMATION ON FUEL - PELLETS
What are pellets?
Wood pellets are a standardised fuel. Every manufacturer must
adhere to certain conditions in order to enable flawless, energy-
efficient heating. Pellets are made from wooden waste, from
sawmills and planning workshops, as well as from residue from
forestry operations. These “starting products” are crushed, dried,
and pressed into Pellet “Fuel” without any bonding agent.
ENplus – Pellets
This ENplus standard sets benchmarks in the European pellet
market. The traceability of pellets is ensured thanks to the use of
identification numbers. The pellet manufacturers’ production
facilities and manufacturing processes are reviewed every year.
A quality assurance system ensures the pellets comply with the
requirements of the new standard and that the conditions for
trouble-free heating are guaranteed
Wood pellet specification according to
ENplus – A1
Parameter
Measure ENplus-A1
diameter
mm
6 (±1)
2)
length
mm
3,15 bis 40
3)
buld density
kg/m3
≥600
calorific value
MJ/kg
≥16,5
water content
Ma.-%
≤10
fine fraction (<3,15mm)
Ma.-%
≤ 1
mechanical rigidity
Ma.-%
≥97,5
4)
ash content
Ma.-%
1)
≤0,7
ash softening temperature
(DT) °C
≥1200
chlorine content
Ma.-%
1)
≤0,02
sulphur content
Ma.-%
1)
≤0,03
nitrogen content
Ma.-%
1)
≤0,3
copper content
mg/kg
1)
≤10
chrome content
mg/kg
1)
≤10
arsenic content
mg/kg
1)
≤1
cadmium content
mg/kg
1)
≤0,5
mercury content
mg/kg
1)
≤0,1
lead content
mg/kg
1)
≤10
nickel content
mg/kg
1)
≤10
zinc content
mg/kg
1)
≤100
1) in an anhydrous state
2) diameter must be specified
3) a maximum of 1% of the pellets may be longer than 40 mm,
max. length is 45 mm
4) the limit value of ≥97,7 Ma.-% applies when conducting
measurements with a lignotester (internal control)
Your pellet stove is only approved for the burning of pellets of tested
quality. Please ask your pellet stove dealer for tested fuel and a list of
monitored fuel manufacturers.
Note
Only burn pellets that have been inspected according to ENplus-A1.
Using poor quality or prohibited pellet fuel will have a negative
effect on the function of your pellet stove and can also lead to the
warranty becoming null and void, as well as the product liability
connected with this.
Note
Burning straw, maize, woodchips etc. is not permitted! Observe
waste incineration legislation! Non-observance of these
regulations makes void all warranty and guarantee claims and
may impair the safety of the unit!
Pellet container refilling during operation
Note
CAUTION when filling! Avoid direct contact between the plastic
bag and the hot stove. Immediately remove all pellets that have
fallen on the hot stove or next to the container!
We recommend always having a suitable amount of pellets in the
container to prevent the fire from extinguishing due to a lack of fuel.
Check the level frequently. However the container lid should be kept
closed, except during filling.
If you refill the container during operation (open the container lid),
the fan will speed up and the pellet auger will stop; operation will only
be continued once the container lid is closed again (see WARNING
AND ERROR MESSAGES)
Pellet container capacity (see Technical Data).
Pellet storage
In order to guarantee problem free burning of the wooden pellets, it
is imperative necessary to store the fuel as dry as possible and free
from impurities.
Pellets should not be kept in sacks outdoors or stored in a manner
where they are exposed to the environment. This can lead to
blockages in the screw conveyor.
Note
“Screw stoppers” are excluded from the warranty.
