2.4.2 Permitted fuels
Wood chips
Criterion
Designation as per
Description acc. to
ÖNORM M 7133
ÖNORM M 7133
EN ISO 17225
Water content
W20
M20
air-dried
W30
M30
suitable for storage
Size
G30
P16S
Fine wood chip
G50
P31S
Medium-sized wood
chip
EU:
Fuel acc. to EN ISO 17225 - Part 4: Wood chips class A1 / P16S-P31S
Additional for
Germany:
Fuel class 4 (§3 of the First Federal Emissions Protection Ordinance
(BimSchV) in the last amended version)
Wood pellets
Wood pellets made from natural wood with a diameter of 6 mm
EU:
Fuel acc. to EN ISO 17225 - Part 2: Wood pellets class A1 / D06
and/or:
EN
plus
/ DIN
plus
certification scheme
General note:
Before refilling the store, check for pellet dust and clean if necessary.
TIP: Fit the Froling PST pellet deduster for separating the dust particles contained in
the return air
Wood shavings
Wood shavings generally cause problems with combustion. Therefore their use is
permitted only with authorisation from Froling. The following additional points also
apply:
▪ Sawdust and carpentry waste should only be used with systems with a rotary
valve.
▪ The store should be fitted with a pressure release device in accordance with
regional regulations.
▪ The same limits apply for the permitted water content of sawdust as for wood
chips.
Note on standards
Note on standards
2
Safety
Permitted uses
14
Froling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com
