21
CHARACTERISTICS OF THE PELLETS2.4.7
Description
Unit of measurement
Value
Size of the pellets mm 6 – 8
Recommended net calorific value MJ/kg >17.2
kWh/kg >4.7
Class (ENplus) ENplus-A1
Pellet category A, AB, B*
Ash residue % See Table 2
Humidity % Max. 8 – 10%
Properties recommended for Table 1 wood pellets
* The automatic pellet burner is designed to use wood pellets with the properties described in the ENplus reference standard.
Pellet category A
d
DU
A
A
d
≤ 0.6% DU
≥ 97.0%
AB
A
d
≤ 0.6% DU
≥ 97.0%
B
0.6% < A
d
≤ 1.0% DU
≥ 97.0%
BC
0.6% < A
d
≤ 1.0% DU
≥ 97.0%
C
1.0% < A
d
≤ 2.0% DU
≥ 97.0%
CD
1.0% < A
d
≤ 2.0% DU
≥ 97.0%
D
2.0% < A
d
≤ 3.0% DU
≥ 97.0%
DE
2.0% < A
d
≤ 3.0% DU
≥ 97.0%
E
A
d
> 3.0% DU
≥ 97.0%
EF
A
d
> 3.0% DU
< 97.0%
Classification of the pellets, according to their physical propertiesTable 2
A
d
– ash residue [%]
DU – mechanical resistance [%]