Page 17
Suitable fuels
FIREWOOD (LOGS)
Billet wood should have a maximum water content of approximately 30 % of
the dried weight, be approximately 1/3 m long and be chopped small. In this
way the billets are ignited rapidly, producing a better heat output than larger
wood billets for the same amount of wood. Undercover in the open, fi r, pine or
alder wood should be stored a good 2 years, hard wood even 3 years.
The signifi cance of the water content of wood on the calorifi c value is shown
in
Table 1
Unsuitable fuels
Moist wood, bark waste, sawdust, fi ne wood chips. Brushwood, wood wool,
wood chips. Use only very small amounts of paper for lighting.
Burning such fuels generates high levels of pollutant emission, a lot of ash
while the calorifi c value is very low.
Prohibited fuels
Surface-treated wood (veneered, painted, impregnated, etc.), chipboard wood,
all types of waste (packaging waste), plastics, newspapers, rubber, leather,
textiles, etc. Burning such materials will greatly pollute the environment and is
prohibited by the legislator.
It can also damage the stove and chimney.
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 the stove frame to prevent
a discoloration of the stainless stove frame when heating!
• Open heating and ash door, pull out ash drawer and remove all-purpose
wrench.
• Wipe off the corrosion protection applied to the steel cooking plate (see Page
19)
• To ensure an optimum combustion process, oxygen-rich air is essential.
Therefore provide the room with good ventilation prior to heating.
• With stoves featuring a central heating insert, make sure that the heating
appliance is ready for use before each start-up (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.
Initial heating
• 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
• Put 2 small pieces of fi rewood onto the grate
• Stack 2 wood billets on top. Put some wood wool on top, ignite it and sub-
sequently place a medium-sized wood billet on top..
• Close heating door and allow wood to develop a lively fi re.
Figure 34
Table 1
