INSTRUCTIONS FOR THE INSTALLER 8
2.
Figure No.3 - Distances between chimney crown
and roof ridge
The chimney crown must clear the
highest point of any neighbouring building
or obstacle located within a 10m radius of
the chimney outlet by more than 1m.
Figure No.4 - Distances between the chimney
crown and objects within a 10m radius
The chimney crown must clear any
neighbouring building or obstacle located
within a radius of 10m to 20m from the
chimney outlet.
Figure No.5 - Distances between the chimney
crown and objects within a radius of between
10 and 20m
2.4.3. Poor flue
If not all the requirements indicated
previously have been met, smoke may
escape from the appliance into the room in
which it is installed when the firebox door
is opened. This is because the flue is unable
to generate enough updraught.
Before doing anything else, the installer
should correct deficiencies in the
installation, bearing in mind: the material,
insulation, diameter, airtightness,
cleanliness, height, verticality/straightness,
chimney crown, etc.
If sufficient updraught is not achieved
by correcting the flue installation, Lacunza
supplies an accessory for exceptional cases:
a part which seals the top of the front part
of the appliance and helps prevent smoke
escaping into the room. Logically, this
reduces both the view of the fire and the
