Spartherm L 800, Installation And Operating Instructions Manual

Page: 26 / 36

GB 26
Please note: Larger volumes of wood lead to overheating and damage to
your fireplace cassette. Wood briquettes have a significantly higher heat-
ing output than hardwood. The volume of wood briquettes added per hour
should therefore be kept to at least 20% less than when using chopped
wood (see 2.3). We reject all guarantee claims resulting from damage
caused by overheating (too much wood added per hour). The maximum
amount of fuel specified in this manual should not be exceeded, overloading
can cause excess smoke.
5.5 HEATING OUTPUT REGULATION
Regulation of the heating output is achieved through the volume of fuel
added to the fire. Do not try to slow down the burning process by reducing
the air supply too severely. When burning wood, this will lead to incomplete
burning and, therefore, to wasted fuel and unnecessary environmental pol-
lution because the wood is degassed even when no flames occur. This also
leads to increased sooting of the glass panel! In addition, there is a danger
of deflagration (explosion-like inflammation of the smoke gasses). Ensure
that the firebox door is always firmly shut so that the burning process is not
accelerated through the uncontrolled feeding of air.
The heating output of your fireplace cassette is also dependent on the
“drawing” performance of your chimney. The “drawing” performance of the
chimney can be influenced by the size of the opening to the chimney or by
environmental conditions such as strong winds etc.
5.6 ROOM HEATING CAPACITY
Room heating capacity was previously given in accordance with the DIN
18893 standard (last issued August 1987) and is no longer useful for mod-
ern houses built after 1990. However, the old information for room heating
capacity can still be of interest as a comparative value or for use with older
building structures that do not yet correspond to the thermal insulation
standards from 1977.
5.4.1 ADDING WOOD / END OF THE FIRE
Fuel may only be added to the fire when the initial fuel has burnt down to
embers.
1. Open the air supply using the air adjustment lever
2. Open the firebox door very slowly (use heat-resistant gloves!) to ensure
no turbulence occurs that could promote smoke to leak out.
3. Place the chopped wood on to the embers (bark facing upwards, cut
section on side). (Ensure that the air supply is open!)
4. Close the firebox door (use heat-resistant gloves!).
5. If the chopped wood does not immediately start to burn, the combustion
air regulator should remain open for approx. two to five minutes in the
“Air supply open” position (completely to the right). The setting of the
combustion air regulator should only be changed when the wood that
has been added has been completely burnt.
End of the fire: This is achieved when the wood
has been completely burnt, there is no smoulder-
ing fire and no incomplete combustion can occur.
The control lever can now be closed. When your
fireplace cassette is not being operated, always
set the control lever to the position “Air supply
closed”.
5.4.2 VOLUME OF WOOD TO ADD PER HOUR
In order to avoid damage caused by overheating e.g. discolouration of the
steel, deformation etc. and to guarantee optimal functionality for many
years, the fireplace cassette must be correctly fuelled. Any danger of over-
heating can be excluded when the maximum heating output is not exceeded.
You can read about the volume of wood to add per hour in section 2.3
“Technical Data”. The circumference of the individual wooden logs should
be approx. 20-25 cm!