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Vertical Balanced Flues enables boilers to be installed in single storey outhouses or utility rooms where it may
not be convenient for it to be sited near an outer wall. It may also be employed to exhaust vertically to avoid
nearby windows or doors.
Vertical Balanced Flues may also be preferred in cases where close proximity to adjoining houses or property
dictates minimum exhaust noises.
5:3.1 Positioning of Vertical Flues
Listed are general restrictions as to the positioning of Vertical Balanced Flues. Refer to
1. Avoid positions where Vertical Flues will exhaust adjacent to a higher wall. The minimum distance for
operation from a higher vertical wall must be 600mm.
2. Ensure Vertical Flues do not exhaust below the level of any openable window less than 2300mm
horizontally from the terminal (see BS 5410:1).
3. Care should be taken to ensure that there is clearance between the outer surface of the flue and any
combustible material.
BOULTER BUDERUS CAMRAY 5 PAGE 24
5:4 POSITIONING THE BOILER
Read
Sections 5:2
&
5:3
Some combustion noise occurs at the Exhaust Terminal of Balanced Flues and care should be exercised to
ensure that the position of the exhaust is not near doors or opening windows of the house it serves, or doors
or windows of any neighbouring house. See
RECOMMENDED FLUE TERMINAL POSITION
Table to above Flue Terminal Positions - MINIMUM dimensions
REF
A
Directly below an Opening, Air Brick or Window
B
Below a Gutter, Sanitary Pipework or Eaves
file://D:\PL47000\PL47000.htm
Fig.
5:4a.
DESCRIPTION
Page 37 of 67
Fig.
5:4a.
DISTANCE IN MM
600
75
(600*)
14/04/2005
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