16
5.5 AIR/FLUE SYSTEM
The FEB20E boiler comes supplied with a Ø 60 - 100mm coaxial air/flue kit.
The maximum length of the combustion and intake pipes which may be used with the FEB20E boiler is three
meters, measured from the 90
°
bend. Each extra 90
°
bend or two 45
°
bends, reduces the available length
by 0.8m. (See installation examples).
It is recommendable to fit the pipe at a slight 2
°
or 3
°
downwards incline to prevent any water or condensa-
tion from entering in the boiler.
Where a short run of less than 1 m is used, such as in a caravan holiday home, the air restrictor ring
must be inserted into the boiler flue spigot before fitting the elbow.
Ø60.2
100
20
968
1020
890
57.5
Seal
Rubber
sleeve
Clamp
Air
restrictor
ring
HORIZONTAL FLUE Ø 60-100mm COAXIAL
