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3. Fuel
Which type of fuel? Wood or wood briquettes
Which firewood should I choose?
There are various types of firewood which each have their own power and way
of burning. Preference should be given to hardwood such as oak, beech, ash,
hornbeam and wood from fruit trees. These types of wood burn well and form
a bed of coals that stays glowing for a long time.
The wood must be dry!
Damp wood gives off a much less heat, because a lot of energy is used up to
evaporate the moisture from the wood. It also causes soiling of the hearth,
window and chimney.
Dry wood means clean pieces wood with a humidity ratio, by comparison with
dried wood, of no more than 20%. So choose well-cutwood that has been able
to dry out for two years and store it in a protected but well-ventilated spot.
TIP: How to recognise dry wood? Dry wood weighs significantly less and
makes a brighter noise if you bang two blocks against each other.
Use prepared wood or finely chopped wood (splinters) to light the stove!
Things not to use ...
Rubbish, wood chips, shavings and sawdust, bark and waste from chipboard,
plywood and wood with a treated surface must not be used. They cause
soiling of the hearth and the chimney and can emit poisonous fumes.
Watch out:
Do not cut the firewood too small. Very thin wood burns only for a very short
time only and is only suitable for lighting the stove. Let large pieces, generally
about 25 to 30 cm long burn naturally. round short wood must be chopped
small.
Also take account of the power of your stove. If your stove has a power of 7
kW than ± 2 kg dry wood per hour is enough.
Model Altum
WOOD
Max. length of wood blocks
cm
25 to 30
Max. diameter / width
cm
14
Max. humidity
%
20
Maximum volume
kg
1.5
WOOD BRIQUETTES
Max. length of wood blocks
cm
25 to 30
Maximum volume
kg
1 to 1,5
English
Summary of Contents for Altum
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