
LOW FLUE DRAUGHT SYMPTOMS: DIFFICULT TO LIGHT AND SMOKE COMING INTO THE ROOM
CAUSE REMEDY
Cold chimney Line the chimney
Chimney too short Extend the chimney
Down draught Relocate/extend chimney terminal. Fit an anti down draught cowl.
Chimney diameter too large Line the chimney
Chimney obstruction Clear/sweep the chimney
Restricted air supply Check for competing draughts (other chimneys, extractor hood/fans).
Fit an air vent if the room is sealed.
HIGH FLUE DRAUGHT SYMPTOMS: FIRE DIFFICULT TO CONTROL, FUEL WILL NOT LAST,
COOKER TOO HOT
, APPLIANCE DAMAGE, CHIMNEY FIRE.
External wind conditions combined
with chimney terminal
Fit stabiliser cowl. Fit flue draught stabiliser
.
6
CHIMNEY AND FLUE INFORMATION
CHIMNEY AND FLUE
Fig.2 – Chimney and Flue Performance
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