3.9. Trouble Shooting
Problem
Probable causes
-
Action
Fire difficult to start. Fire goes
out.
Wood green… or too damp
-
Use hard wood logs, which have been cut for at least
two years and stored, under a ventilated shelter.
Logs are too big
-
To light the fire, use small, very dry twigs. To maintain
the fire, use split logs.
Poor quality wood
-
Use hardwood that have a higher calorific value per cu
metre (Yoke-elm, oak, ash, maple, birch, elm, beech,
etc.)
Not enough primary air
-
Open air control.
Insufficient draught
þ
-
Check that the flue is not obstructed, sweep it if
necessary
-
Seek advice from a chimney specialist.
Fire burns too quickly
Too much draught
-
Partially close the air control.
Excessive draught
þ
-
Install a draught stabiliser to the connector pipe.
Poor quality wood
-
Do not continuously burn small wood, sticks, bundles,
carpentry offcuts (plywood, pallets), etc.
Smokes when lighting up
Flue duct is cold
-
Burn paper and kindling wood to increase heat.
Room is in decompression
(negative pressure)
-
In houses equipped with mechanical ventilation, partly
open a window until the fire is well established.
Smokes while burning.
Insufficient draught
þ
-
Vérifier la conformité du conduit de fumée et son
isolation.
-
Check that the flue is not obstructed, sweep it if
necessary
Down draught
þ
-
Install an anti-down draught cowl.
Room is in decompression
(negative pressure).
þ
-
In houses equipped with mechanical ventilation, partly
open a window until the fire is well established.
Low heat output.
Poor quality wood.
-
Use hardwood that have a higher calorific value per cu
metre (Yoke-elm, oak, ash, maple, birch, elm, beech,
etc.)
Poor mixing of the convection air
-
Check the air flow system (air inlet, piping, air outlet).
-
Check that the next rooms are equiped with ventilation
grids to help out the hot air circulation.
10
Technical manual “1171”
“MONTFORT” - ref. 134 05 01
Instructions for user
þ
: This sign means that you should
asked for a qualified engineer to do the
work.
