Flue Options - Baxi Main Combi Eco Installation & Service Instructions Manual

Plume Displacement Kit 60 /100 Ø
1M Extensions, 45° & 93° elbows
are also available - see Section 9.0
NOTE: Horizontal flue pipes should always be installed with at least a 1.5° fall
from the terminal to allow condensate to run back to the boiler.
This bend is equivalent to
1 metre
A
© Baxi Heating UK Ltd 2011
Horizontal
Flues
C
B
This bend is equivalent to
1 metre
(i)
Total equivalent length =
A+B+C+2x90°Bends

8.0 Flue Options

8.1
1. The standard flue is suitable only for horizontal termination
applications.
(ii)
2. Maximum permissible equivalent flue lengths are:-
(i)
Horizontal Concentric
3. Any additional "in line" bends in the flue system must be
taken into consideration.
Their equivalent lengths are:-
Concentric Pipes:
Twin Flue Pipe
The elbow supplied with the standard horizontal telescopic
flue kit is not included in any equivalent length calculations
NOTE: Flue length is measured from point (i) to (ii) as
shown.
IMPORTANT: All flue systems must be securely supported
at least once every metre. Suitable pipe supports are
available as accessories.
(ii)
Horizontal Flue Systems
(60/100)
10 metres
135° bend
93° bend
135° bend
91.5° bend
(80/125)
20 metres
0.5 metres
1.0 metres
0.25 metres
0.50 metres
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