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

SOME ADVICE IN CASE OF COMBUSTION PROBLEMS

Error
No draught The chimney is blocked
The flue is sooty or there is accumulated soot on the
smoke baffle
The smoke baffle is wrongly positioned
The stove Downdraught in the room caused by no draught, that
release the house is too "air tight".
smoke when
Downdraught in the room – caused by extractor and/
lighting the
or central ventilation system that pulls too much air
fire and during
out of the room.
combustion
The flues from two fireplaces/stoves are connected to
the same chimney at the same height.
The flue is in a declining position from the smoke
dome to the chimney.
The flue is too far into the chimney.
Soot hatch in the basement or attic that is open and
thus creating a false draught.
Damper/top draught vents or doors on fireplaces that
are not in use are open and create a false draught.
An open hole in the chimney or a fireplace that has
been removed, thus creating a false draught.
Defect masonry in the chimney, e.g. it is not airtight
around the flue 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 stove The chimney is too low in relationship to the
release smoke surrounding terrain, buildings, trees etc.
inside when it is
Turbulence around the chimney due to the roof being
windy outside.
too flat.
The stove The fireplace combustion receives too much oxygen
does not heat due to a leakage under the lower border of the stove
sufficiently. or too strong chimney draught. Difficult to regulate the
combustion and the wood burn up too quickly.
Too much The smoke buffer is wrongly positioned.
draught
In case of using oven-dried wood, this requires less
air supply than when using normal wood.
The gaskets around the door are worn and totally flat.
The chimney is too large.
The glass is The wood is too wet.
sooty
The air vent control is too closed.
White glass Bad combustion (the temperature is too low)
Using wrong material for combustion (such as:
painted or impregnated wood, plastic laminate,
plywood etc)
Smoke comes A levelling out of pressure occurs in the burn
out of the stove chamber.
when the door is
The door is opened when there is a fire in the burn
opened.
chamber.
White smoke The combustion temperature is too low.
The wood is humid and contains water damp.
Black or grey/ Insufficient combustion.
black smoke
All manuals and user guides at all-guides.com
Explanation Solution
Contact a chimney sweeper / dealer for more information or
clean the flue and burn chamber
Is verified by lighting the fire with an open window. If this
helps, more/bigger vents must be installed.
Turn off/regulate extractor and/or other ventilation. If this
helps, more/bigger vents must be installed.
One flue must be repositioned. The height difference of the
two flue pipes should be of at least 30 cm.
The flue 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 flue must be remounted. Should end 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 defected must be changed.
Close damper, doors and top draught vents on fireplaces
that are not in use.
Holes must be completely closed.
Seal and plaster all cracks and sites that are not tight.
The chimney must be refitted, possibly install a smoke
suction device.
Change to a smaller stove or build new chimney with larger
cross section. Possibly install a smoke suction device.
Increase the height of the chimney.
Increase the height of the chimney. Possibly install a
chimney cap or a smoke suction device.
Increase the height of the chimney or install a chimney cap.
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.
Control the positioning of the smoke buffer – see assembly
instructions.
Turn down the air supply.
Control the gaskets and exchange them as per the
assembly instructions.
Contact chimney sweeper 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.
Follow the guidelines in this booklet for correct heating.
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.
Only open the door when there is hot ember.
Increase the air supply.
Ensure to use only dry and clean wood.
Increase the air supply.