Specifications

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.
Ø6 0 . 2
100
20
968
1020
890
57.5
Seal
Rubber
sleeve
Clamp
Air
restrictor
ring
HORIZONTAL FLUE Ø 60-100mm COAXIAL