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5. Fuels<br />
Wood storage<br />
Water<br />
content %<br />
6. Chimney connection<br />
fig. 1<br />
fig. 2<br />
Freshly cut from the forest 50 ~2,3<br />
Stored over winter 40 ~2,7<br />
Stored over summer 18-25 ~3,4<br />
Air dry 15-20 ~4,2<br />
Calorific value<br />
kWh/kg<br />
table 1<br />
Suitable fuels<br />
WOOD PELLETS<br />
It is imperative that only wood pellets conforming to the Austrian standards<br />
ÖNORM M7135 or DIN Plus are used. Diameter 6 mm, length max. 30 mm.<br />
Storage of wood pellets<br />
Pellets are supplied with a maximum water content of 10 %. Wood pellets must<br />
not be exposed to humidity during transport, make sure that they are stored in<br />
an absolutely dry place which is free of dirt.<br />
WOOD<br />
Billet wood (Fig. 2) should have a maximum water content of approximately<br />
30 % of the dried weight, be approximately 1/3 m long and be chopped small.<br />
In this way the billets are ignited rapidly, producing a better heat output than<br />
larger wood billets for the same amount of wood. Undercover in the open, fir,<br />
pine or alder wood should be stored a good 2 years, hard wood even 3 years.<br />
The significance of the water content of wood on the calorific value is shown<br />
in Table 1.<br />
Unsuitable fuels<br />
Moist wood, bark waste, sawdust, fine wood chips, brushwood, wood wool,<br />
wood chips. Use only very small amounts of paper for lighting.<br />
Burning such fuels generates high levels of pollutant emission, a lot of ash<br />
while the calorific value is very low.<br />
Impermissible fuels<br />
Surface-treated wood (veneered, painted, impregnated, etc.), chipboard wood,<br />
all types of waste (packaging waste), plastics, newspapers, rubber, leather,<br />
textiles, etc.<br />
Burning such materials will greatly pollute the environment and is prohibited<br />
by the legislator. It can also damage the stove and chimney. Furthermore the<br />
combustion of carbon energy is not allowed. The appliance has not been tested<br />
for operating on these fuels; therefore damages to the appliance cannot be<br />
ruled out and are not covered by warranty.<br />
For dimensions and detailed information on the chimney connection please refer<br />
to the operating <strong>manual</strong> of the stove.<br />
• In the event of a power failure, the chimney has to ensure the safe discharge<br />
of the flue gases from the appliance. Consequently it performs an important<br />
safety function and therefore several points are to be observed:<br />
• It is obligatory to provide a connection to a chimney that is non-susceptible<br />
to moisture and suitable for solid fuels.<br />
• The chimney has to conform to the specifications given on the type plate and<br />
in the <strong>user</strong> <strong>manual</strong> of the stove.<br />
• Prior to installation it is necessary to perform a calculation of the chimney as<br />
regards its dimensions.<br />
When installing dampers /draught regulators and explosion doors, please follow<br />
the installation instructions of the local chimney sweep<br />
• If the chimney draught is too high (>16 Pa) we recommend installing a damper<br />
(draught regulator)<br />
• Always connect the appliance to a separate chimney; no other heating appliances<br />
should be connected to the same flue or chimney system.<br />
• The flue pipe is to be connected to the chimney in compliance with the requirements<br />
of the Building Regulations. For further questions please consult<br />
your local chimney sweep.<br />
• Make sure that all flue pipes are leak-proof. Your local chimney sweep will<br />
be happy to give advice<br />
page 7
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