Page 17
Suitable fuels
FIREWOOD (LOGS)
Firewood (Figure 31) should have a moisture content of approx. 20 % of the
dry weight, a length of 1/3 m and should be split into small pieces. This way,
the fi rewood quickly catches fi re and produces a higher heat output than the
same volume of large logs. Spruce wood, fi r wood or alder wood should be
allowed to dry out for at least 2 years, hardwood as long as 3 years (under a
roofed shelter).
The effect of the water content in wood on the calorifi c value is shown in Table
1:
LIGNITE BRIQUETTES
In addition to wood, lignite briquettes (Figure 32) can also be burned. Ligni-
te briquettes have the following advantages: high calorifi c value, long-lasting
heat, a consistent quality, readily available at DIY-stores, fuel dealers etc. and
the 10-25 kg bundles are easy to transport and store.
Calorifi c value of lignite briquettes:
5,83 kWh/ kg
Unsuitable fuels
Moist wood, bark waste, sawdust, fi ne wood chips, brushwood, wood-wool,
wood shavings. Use paper only in small amounts to kindle a fi re. The burning
of such fuels results in signifi cant pollutant emissions, large amounts of ash,
and the heat output is comparatively low.
Prohibited fuels
Surface-treated wood (veneered, painted, impregnated, etc.), particle board,
all types of household waste (packaging waste), plastic materials, newspapers,
rubber, leather, textiles, etc.
Burning these materials is harmful to the environment and is therefore prohibi-
ted by law. Furthermore, damage to the appliance and the chimney can occur.
Burning coal products other than lignite (brown coal) is also forbidden. The
appliance has not been tested for use with these fuels; therefore damage to the
appliance cannot be ruled out and is not covered by warranty.
Storage of wood
moisture content
%
calorifi c
value
kWh/kg
green wood
50
~2,3
stored for one winter
40
~2,7
stored for one summer
18-25
~3,4
air dried
15-20
~4,2
After completion of the assembly and connecting work and prior to the fi rst
start-up, a few actions are still required:
• Steel cooking plate: ensure a 2 mm gap all round between the plate and
the stove frame to prevent discoloration of the stainless stove frame when
heating.
• Open the fi rebox door and the ash door, pull out the ash drawer and take
out the multi-purpose wrench.
• Wipe off the corrosion protection applied to the steel cooking plate (see
page 21)
• Before each start-up, make sure that the appliance is ready for use (water
level, water pressure, temperature, controls, safety devices etc.)
After you have familiarised yourself with the operating procedures for the stove,
the fi rst start-up can begin.
Heating up
• Open the start-up fl ap, turn the knob for the primary air to position 6 and
fully open the slider for the secondary air.
• Open the fi rebox door
• Turn the operation mode control to Cooking operation
• Put 2 small pieces of fi rewood onto the grate
• Place a piece of starter between the pieces of fi rewood and add more
fi rewood on top
• Close the fi rebox door, open the ash door a little bit and allow wood to
develop a lively fi re.
Figure 31
Figure 32
Table 1