Siting The Flue Terminal - Worcester 240 Combi BF Installation And Servicing Instructions

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5. Siting the Flue Terminal
See Fig. 4
5.1
The flue must be installed as specified in BS 5440:Part 1.
5.2
The terminal must not cause an obstruction nor the dis-
charge cause a nuisance.
5.3
If the terminal is fitted within 850 mm of a plastic or painted
gutter or within 450 mm of painted eaves then an aluminium
shield at least 750 mm long should be fitted to the underside of
the gutter or painted surface.
5.4
If a terminal is fitted less than 2 metres above a surface to
which people have access then a guard must be fitted. See Sec-
tion 2.9.
Fig. 4. Siting of the flue terminal.
MINIMUM SITING DIMENSIONS FOR POSITIONING THE BALANCED
FLUE TERMINAL.
A
6
5.5
The terminal guard must be evenly spaced about the flue
terminal and fixed to the wall using plated screws
5.6
In certain weather conditions a terminal may steam and sit-
ing where this could cause a nuisance should be avoided.
5.7
Take care to ensure that combustion product:; do not enter
ventilated roof voids.
TERMINAL POSffiON MIN. DISTANCE
A-Directly below an openable window or
other opening e.g. air brtck 300 mm (12in.)
B- Below gutters, soil pipes or drain pipes
300 mm (12in.)
c-
Below eaves 300 mm (12in.)
D-Below balconies or car port roof 600 mm (24in.)
E- From vertical drain pipes and soil pipes 75mm(3in.)
F- From internal or external corners 600 mm (24in.)
G--
Above ground, roof or balcony level 300 mm (12in.)
H-From a surface facing a terminal 600 mm (24ln.)
I- From a terminal facing a terminal 600 mm (24ln.)
J-
From an opening in a car port (e.g. door
window) Into dwelling 1200 mm (47in.)
K- Vertically from a terminal on the same wall
1500 mm (59in.)
L- Horizontally from a terminal on the same
wall
300 mm (12ln.)
M-From door, windoworairvent(achieve
where possible)
300 mm (12in.)