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Vertical
Flues
(Twin Pipe)
A
Vertical
Flues
A
Horizontal
Flues
A
7.0
SITE REQUIREMENTS
7.11
Flue Options
1. The Main Combi 24 HE can be fitted with flue
systems as illustrated.
2. The standard flue is suitable only for horizontal
applications.
3. Maximum permissible equivalent flue lengths
are:-
4 metres
4 metres
12 metres
4. Any additional "in line" bends in the flue system
must be taken into consideration.
Their equivalent lengths are:-
Concentric Pipes:
45° bend
93° bend
Twin Flue Pipe
45° bend
91.5° bend
0.5 metres
1.0 metres
0.25 metres
0.50 metres
The elbow supplied with the standard horizontal flue
is not included in any equivalent length calculations
5. The illustrations opposite show examples of
maximum equivalent lengths.
6. Instructions for guidance and fitting are included
in each kit, where appropriate.
NOTE: Flue length is measured from point A to B
as shown.
18
B
Horizontal Concentric
Vertical Concentric
Vertical Twin Pipe
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