Herz pelletfire 20/20, Operating Instructions Manual, Page: 8 / 100

3 Fuels
8
log wood are much larger, the log wood should be
thinner, in extreme cases 20 to 5 cm.
Small sized material may be burned only as
admixture. From the smaller material may be
added less. Wood briquettes 6-10 cm in diameter
according to EN 17225-3.
Only one oversized log each boiler filling
To split a root stock to such thin pieces is very
hard work. Per boiler filling maximum one large
root stock piece are burned up in the stack.
Type of
wood
Calorific values (by wood
moisture 25%) in kWh/stere
Beech 1890
Oak 1930
Pine 1520
Spruce 1330
We recommend to use beech
wood. Do not mix different types
of wood. The use of one type of
wood promotes a consistent burn-
off
and reduces burning
disturbance. However, if it cannot
be avoided to use different types
of wood, the boiler must be filled
in
layers (softwood below,
hardwood above).
3.4 Not suitable fuels
When burning wet fuel with more than 30 % water
content, condensation water formation and
corrosion on the walls of the filling chamber occur.
Furthermore, should not be burned:
Garbage, plastics, paper and cardboard (only for
starting the fire), sanding dust, wood shavings,
wood chips smaller than thumb-size, coal and
coke, the respective Clean Air Act (state law)
usually prohibited fuels such as old railroad ties,
plastics, particle board, impregnated wood.
3.5 Fuel storage room
The storage must conform to
ÖNORM_EN_ISO_20023:
◼
Filling pipe maximum 30 m
◼
Sloping floor 35-40°
◼
A rubber mate opposite the blow-in supports
◼
Protection against water and moisture
◼
Dust proof
◼
Fire protection category F 90
◼
Filling nozzle near outside wall
◼
Easy to access
◼
No electrical installation in the storage room
◼
Wall thickness minimum 12 cm on both sides
plaster or 10 cm cement
3.5.1 Filling
At least 1 hour before filling of the
storage the boiler must be in the
operating condition „Heating OFF“.
After filling the corresponding lock
cover must be attached