Alpha Evoke 33NX - FLUE TERMINAL LOCATION

L = A + B = 12m max.
Alpha Evoke 28NX and 33NX - General Boiler Information
L = A + B + (90° bend = 1.3 metre)
L = A + (2 x 45° bends = 1.8 metre)
Fig. 4.2
VERTICAL FLUE OPTIONS
Hmax = 14 m Hmax = 12.2 m (14 m - 1.8 m)
12 m
B
A
A
B
A
HORIZONTAL FLUE OPTIONS - Lmax - 12 metres
Not less than
300 mm
H
Not less than
300 mm
H
Fig. 4.1
Additional flue accessories and plume management are also available.
Note: 1. If an extra 90° bend is used, this reduces the maximum flue length by 1.3 m. Each 45° bend used reduces the
maximum flue length by 0.9 m.
2. Under no circumstances must the flue length (including allowances for extra bends) exceed 12 metres horizontally
and only 14 metres vertically.
3. Failure to use Alpha flue components with the boiler will invalidate the boilers CE approval, guarantee and may be
unsafe.
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