Some Advice In Case Of Combustion Problems - Nordpeis N-21 Manuel D'installation

Some advice in case of combustion problems

Error
The chimney is blocked.
The fl ue is sooty or there is accumulated soot on the
No draught
smoke baffl e.
The smoke baffl e is wrongly positioned.
Downdraught in the room caused by no draught, that the
house is too "air tight".
Downdraught in the room – caused by extractor and/or
central ventilation system that pulls too much air out of
the room.
The fl ues from two fi replaces/stoves are connected to the
same chimney at the same height.
The fl ue is in a declining position from the smoke dome to
the chimney.
The fl ue is too far into the chimney.
The insert
release
Soot hatch in the basement or attic that is open and thus
smoke when
creating a false draught.
lighting the
fi re and during
Damper/top draught vents or doors on fi replaces that are
combustion
not in use are open and create a false draught.
An open hole in the chimney after that a fi replace has
been removed, thus creating a false draught.
Defect masonry in the chimney, e.g. it is not airtight
around the fl ue pipe entry and/or broken partition inside
the chimney creating a false draught.
The cross-section in the chimney is too large which
results in no or very low draught.
The cross-section in the chimney is too small and the
chimney cannot carry out all the smoke.
The chimney is too low and hence a poor draught.
The fi replace The chimney is too low in relationship to the surrounding
releases smoke terrain, buildings, trees etc.
inside when
Turbulence around the chimney due to the roof being too
it is windy
fl at.
outside.
The fi replace combustion receives too much oxygen
The fi replace
due to a leakage under the lower border of the insert
does not heat
or too strong chimney draught. Diffi cult to regulate the
suffi ciently.
combustion and the wood burn up too quickly.
The smoke buffer is wrongly positioned.
In case of using oven-dried wood, this requires less air
Too much
supply than when using normal wood.
draught
The gaskets around the door are worn and totally fl at.
The chimney is too large.
The wood is too wet.
The glass is
sooty
The air vent control is closed too tightly.
Bad combustion (the temperature is too low).
White glass
Using wrong material for combustion (such as: painted
or impregnated wood, plastic laminate, plywood etc).
Smoke is
A levelling out of pressure occurs in the burn chamber.
released when
the door is
The door is opened when there is a fi re in the burn
opened
chamber.
The combustion temperature is too low.
White smoke
The wood is humid and contains water damp.
Black or grey/
Insuffi cient combustion.
black smoke
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Explanation Solution
Contact a chimney sweeper / dealer for more information or clean
the fl ue, smoke baffl e and burn chamber.
Verify the assembly of the smoke baffl e - see assembly instructions.
Light the fi re with an open window. If this helps, more/bigger vents
must be installed in the room.
Turn off/regulate extractor and/or other ventilation. If this helps, more
vents must be installed.
One fl ue must be repositioned. The height difference of the two fl ue
pipes must be of at least 30 cm.
The fl ue must be moved so that there is an inclination of at least
10º from smoke dome to chimney. Possibly install a smoke suction
device*.
The fl ue must be reconnected so that it does not enter into the
chimney but ends 5 mm before the chimney inner wall. Possibly
install a smoke suction device*.
Soot hatches must always be closed. Hatches that are not tight or
are defected must be changed.
Close damper, doors and top draught vents on fi replaces that are
not in use.
Holes must be completely sealed off with masonry.
Seal and plaster all cracks and sites that are not tight.
The chimney must be refi tted, possibly install a smoke suction
device*.
Change to a smaller fi replace or build new chimney with a larger
cross section. Possibly install a smoke suction device*.
Increase the height of the chimney and/or install a chimney cap/
smoke suction device*.
Increase the height of the chimney and/or install a chimney cap/
smoke suction device*.
Increase the height of the chimney and/or install a chimney cap/
smoke suction device*.
Any possible leakage must be sealed off. A draught regulator or
possibly a damper can reduce the chimney draught. NB! A leakage
of only 5 cm2 is enough for 30% of the heated air to disappear.
Verify the positioning of the smoke buffer – see assembly
instructions.
Turn down the air supply.
Replace the gaskets, contact your dealer.
Contact chimneysweeper or other professional for more details.
Only use dry wood with a humidity of maximum 20%.
Open the air vent control to add air to the combustion. When new
wood logs are inserted all vent controls should be completely
opened or the door slightly opened until the fl ames have a good
take on the wood.
Follow the guidelines in this user guide for correct combustion.
Ensure to use only dry and clean wood.
Open the air vent control for about 1 min before opening the door –
avoid opening the door too quickly.
Open the door carefully and/or only when there is hot ember.
Increase the air supply.
Ensure to use only dry and clean wood.
Increase the air supply.
*Electric top chimney fan