CLASSIC-LINE
ECO-LINE
Installation Guide
22
E
xternal air ducts
● Use, if possible,
round air supply ducts
with a smooth internal surface.
● The internal surface of air supply ducts made of mineral materials or masonry
should be
abrasion resistant
● The air supply ducts must be directly connected at their base or laterally to the
fireplace.
● The air supply ducts must be insulated with a non-inflammable material
3 cm
thick.
● The end of the air supply duct must be fitted with a removable
fine mesh grid
,
to prevent animals entering.
● All the systems must have an adequate supply of fresh air, with the appropri-
ate ducts and opening diameters, otherwise the system will not operate prop
perly in open or closed door modes.
● If the fitter estimates that ducts of smaller diameter will satisfy combustion air
requirements, then any such installation is at his own risk and responsibility, as
the manufacturer cannot guarantee proper operation under these conditions.
● Do not place the end of the external air conduit next to
a chimney flue or air exhaust outlet. Avoid also draw-
ing external air from an area giving onto a road with
heavy traffic.
● Convection air ducts:
→
To prevent cold air ingress, thermal bridges or condensation,
hermetically
closing valves should be fitted.
● Combustion air ducts:
→
To prevent cold air ingress, thermal bridges or condensation,
non-
hermetically-closing
valves should be fitted, and a free section of 10 cm
2
should be kept, which corresponds to an opening of Ø 3 cm. This prevents
dangerous build-up of gases.