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L = A + B = 12m max.
Alpha E-Tec 28 and 33 - 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
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