GB
20
avOiD TOO laRge a FiRe
The fire should not be too big. Large fires are uneconomic and also produce
high smoke temperatures that can damage the stove and the chimney. The
recommended amount of wood is 1.0 kg/hour and the maximum permitted
is 1,5 kg/hour and then refers to burning split birch or other broadleaf wood
with 18% moisture content. When lighting the same weight of conifer wood,
significantly higher stove temperatures are reached. The recommended
amount of anthracite or manufactured smokeless briquettes is 0,6 kg/h,
maximum amount is 0,9 kg/h. Maximum fire for long periods reduces the life
of the stove and exceeding the permitted fuel amounts can lead to damage
to parts of the stove and the warranty being invalidated.
POSSiBle cauSeS OF OPeRaTiONal
iNTeRFeReNce aND hOW TO RecTiFY
Them
Poor draught in the stove after new installa-
tion
• Check the length of the chimney so that it meets Contura’s recommenda-
tions, that is a total length of at least 3.5 metres.
• Check that there is nothing in the chimney to restrict the smoke and that
no nearby buildings or trees affect the winds around the chimney.
• Check the area of the chimney (applies to existing stone built chimneys),
which should be 120-200 cm².
it is difficult to light the fire and the fire dies
after a short time
• The wood may not be dry enough, check the wood.
• Another reason is that there may be negative pressure in the house,
for example when using a kitchen extractor fan or other mechanical
ventilation. Open a window near the stove before lighting the fire. Also
try lighting some newspaper and holding it up inside the stove to get the
draft going.
• The air supply duct from the outside may be completely or partially
blocked. Disconnect the hose and try lighting the fire with combustion air
from the room.
• Perhaps one or both of the combustion dampers are in wrong position,
see operating instructions.
• The smoke outlet of the stove may be blocked with soot, which can occur
after sweeping. Lift the smoke baffle out and check.
• Finally go through the lighting instructions again. Perhaps the amount of
kindling was too small and therefore the base embers were too weak and
cold to light the next load of wood.
abnormal amounts of soot form on the glass
when using wood
There is always a certain amount of soot on the glass and this is added to
with each lighting. Soot on the glass is caused by three things:
• The wood is damp, which causes poor combustion and generates a lot of
smoke as a result.
• Too low temperature in the firebox, which causes incomplete combustion
and poor draught in the chimney.
• Incorrect procedure, the door was not in the lighting position for approx-
imately 15 minutes.
Check the moisture content of the wood, ensure that you have good base
embers and go through the lighting instructions once again.
Smoke odour around the stove for
periods
This can occur when wind blows down the chimney and most often occurs
when the wind is from a particular direction. Another cause is the door was
opened when it is burning hard.
Painted parts have become
discoloured
If painted parts have discoloured it is due to an excessive temperature in the
stove. The reason for the excessive temperature can be that the maximum
amount of fuel has been exceeded, inappropriate fuel has been used (for
example building waste, large quantities of finely chopped off cuts). The war-
ranty does not cover damage of this type.
If a problem occurs that you cannot rectify yourself, contact the dealer or a
chimney sweep.
We hope that these words of advice will help you to enjoy pleasant, economic
and problem free use of your Contura stove.
SWeePiNg
Sweeping the chimney ducts and chimney connections should
be carried out by a chimney sweep. The stove can be scraped
down and/or swept. A soot vacuum cleaner is most appropriate
however.
If a chimney fire occurs or is suspected, the combustion dam-
per and the door must be closed. If necessary, contact the fire
brigade to extinguish it. The chimney must always be inspected
by a chimney sweep after a chimney fire.
Warning
• During operation, certain surfaces of the stove become very hot
and can cause burn injury if touched.
• Be aware of the strong heat radiated through the hatch glass.
• Placing flammable material closer than the safe distance indicated
may cause a fire.
• Smouldering can cause quick gas ignition with the risk of damage
to property and personal injury.
811164 BAV C i4 SE-EX-3
2014-02-20
NiBe aB · Box 134 · Se-285 23 markaryd · Sweden
www.contura.se
Contura reserves the right to change dimensions and
procedures described in these instructions at any
time without special notice. The current edition can be
downloaded from www.contura.eu