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8
Ø 60/100 mm
F
IG. 2.6
A
BC
D
E
F
G
J
K
HI
L
G
F
The boiler is designed to be connected to a coaxial flue discharge system.
2.9 FLUE CONNECTIONS
F
LUE SYSTEM
The provision for satisfactory flue termination must be made in accordance with BS
5440-1.
The appliance must be installed so that the flue terminal is exposed to outside air.
The terminal must not discharge into another room or space such as an outhouse or
lean-to.
It is important that the position of the terminal allows a free passage of air across it at
all times.
The terminal should be located with due regard for the damage or discolouration that
might occur on buildings in the vicinity.
In cold or humid weather water vapour may condense on leaving the flue terminal.
The effect of such “pluming” must be considered.
If the terminal is less than 2 metres above a balcony, above ground or above a flat
roof to which people have access, then a suitable terminal guard must be fitted.
When ordering a terminal guard, quote the appliance model number.
A suitable terminal guard is available from:
TOWER FLUE COMPONENTS
Morley Road
Tonbridge
Kent TN9 1RA
The minimum acceptable spacing from the terminal to obstructions and ventilation
openings are specified in F
IG. 2.5.
T
ERMINAL
P
OSITION
mm
A - Directly below an openable window or other opening 300
B - Below gutters, soil pipes or drain pipes 75
C - Below eaves 200
D - Below balconies or car-port roof 200
E - From vertical drain pipes and soil pipes 75
F - From internal or external corners 300
G - Above ground or balcony level 300
H - From a surface facing a terminal 600
I - From a terminal facing a terminal 1200
J - From an opening in the car port
(e.g. door, window) into dwelling 1200
K - Vertically from a terminal in the same wall 1500
L - Horizontally from a terminal in the same wall 300
FIG. 2.5