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8.
FUELS
8.1.
WOOD
Suitable fuels are:
•
All sorts of clean wood (forested). The wood must have been dried for at
least two years. Well-dried wood has a humidity percentage between 10
and 20%.
Recommended dimensions: length = 30 cm; outline 30 cm.
•
Compressed wood blocks without binder (see wood dimensions).
•
Hard woods burn slowly and easily form charcoal; for example hornbeam,
oak, ash, beech, elm and birch.
Softwood burns with more fl ame, but forms less charcoal and radiates less
heat. Examples are spruce, pine, poplar and linden.
Unsuitable fuels are:
•
Painted, bonded (chipboard, MDF etc.) or impregnated wood, plastic and
other fl ammable waste. Stoking a fi re with this is completely forbidden. To
re-iterate: the combustion gases released by these materials are aggressive
and will attack your fi replace insert and the environment.
•
Paraffi n-containing open fi re lighters are not suitable for a closed fi re. A
closed fi re generates more heat than an open fi re, thus the paraffi n will melt
out of the blocks prematurely.
•
Damp wood burns poorly, is unsuitable and produces too much smoke
(including in the room when you are topping up the wood), dirties the glass,
leaves deposits in the chimney and delivers about half the heat output of
dried wood.
The Cuatro-2 is not suitable for coal fi ring.
40
CUATRO-2 60
CUATRO-2 70
CUATRO-2 80
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