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Contura C 500 Manual

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31
Stoking the fire
Important!
For effective control of the heat output, it is important to have
a thick bed of glowing embers and a high temperature in the
fire-box.
When the fire has burned down to the embers, it is time to stoke
it with more wood.
1. Open the door a fraction and allow the pressure in the fire-box
to even out for a few seconds before opening the door fully.
2. Stoke with 2 or 3 logs that together weigh between about
1.5 and 2.5 kg. Lay one log diagonally and a further one or
two parallel with the back of the fire-box as shown in the
illustration below. Then close the door to the fire-box.
3. Leave the air supply control in the fully open position for 2–3
minutes until the logs have turned black and are burning well.
If you then wish to decrease the rate of combustion, reduce
the amount of air supplied to the fire. The conditions for
controlling combustion vary depending on the temperature in
the fire-box and the draught in the chimney.
4. The lowest output of 4 kW is normally obtained when the air
supply control is 20% open and large logs are being burned.
Under these conditions it is important that the air supply
control is fully open for about 3–5 minutes so that the wood
has a chance to catch fire and burn properly before the supply
of air is reduced.
DEFRA exempted.
The stove can be used in Smoke Control Areas. Smouldering, i.e.
reduced air supply, are prevented by blocking the combustion
damper of 4 kW output.
Important!
It is important that the wood starts to burn quickly. To ensure
that the logs catch light quickly, open the air supply control
fully or leave the door ajar for a short while. Smouldering, i.e.
reduced air supply, results in poor combustion and efficiency
with high emission discharges and can, in worst-case scena-
rios, cause rapid gas ignition resulting in stove damage.
General information
Fires should not be too large. Big fires are uneconomical. They
also produce too much heat and can actually damage the stove
and chimney. Under normal conditions the recommended rate
of wood consumption is 1,7 kg per hour. When burning chopped
birch or other deciduous woods with a moisture content of
approx. 18%, the maximum permissible amount is 2,5 kg per
hour. Burning the same amounts of coniferous wood will result in
much higher temperatures in the fire-box. Burning the maximum
amounts of wood for long periods will shorten the life of a
woodstove. Burning amounts of wood in excess of those given
above can damage components inside the stove and will invalidate
the guarantee.
When the stove is new
Oily coatings on the metal, and paint left on the metal
components may produce a distinctive smell when the stove is
new. This smell will disappear once the woodstove has been used
a few times. You may also notice an acrid smell after using the
stove for a while. This comes from the insulation in the chimney
and can be remedied by burning the maximum amount of wood
(2,5 kg/hour) for a period of 5–8 hours.
Stove maintenance
The glass on the doors can accumulate soot even when the stove
is fuelled with dry wood with a moisture content of 15–20%. If
you clean it regularly, it is often enough simply to wipe the glass
with dry paper. Accumulations of soot on the glass doors are best
removed with a cleaning liquid or with any of the proprietary
sootre movers available from larger stores or your stove supplier.
• Neveruseabrasivecleaners,asthesemaydamagetheglass.
• Ensurethatnoembersremainwhenremovingashfromthe
stove. The ash must be stored in a fireproof container with a lid
for for at least a week before being disposed of.
• Alsocleaninsidetheareawheretheash-panislocated,
otherwise spilled ash can prevent the ash-pan from being fully
inserted and prevent the fireplace door from being closed
properly.
• Cleanthesoapstonewithdetergentorwipeitwithaclean
cloth and pure acetone. Do not put candles or anything
inflammable on the soapstone.
• Thegrateneedscleaningseveraltimesperseason.Thegrate
and other cast-iron parts may be cleaned with a steel brush.
• Itisimportanttocheckwashersandsealsnowandagain.If
they become worn, air seeping into the fire-box may affect the
performance of the stove.
• Lacqueredpartsmaybecleanedwithadampcloth,andalittle
washing-up liquid if necessary. Damage to lacquered parts,
such as small scratches, may be repaired with Contura touch-
up paint. Please contact your supplier.
• Thereisaconstantflowofairthroughthestove:coldair
is drawn in from the room and hot air expelled, so dust can
gather behind and beneath the stove. These areas require
regular cleaning.
• Componentsclosetotheheartofthefire,suchasthefire-
box surround and grate, may need replacing. How long these
components last depends on how often and in what way the
stove is used.
Soot removal
Removal of soot from flues and chimneys should be carried out by
a qualified chimney sweep. Soot may be removed from the stove
itself by scraping or brushing the sides of the fire-box, although a
soot vacuum cleaner is more effective.
If deposits of soot catch fire or if there is a risk that they will do
so, close the air intake control and shut the door. If necessary,
contact the fire brigade to put out the fire. After a soot or
chimney fire, the chimney should always be inspected by a
chimney sweep.
LEK
LEK
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