Terminal Position with Minimum Distance
(mm)
A
Directly below an openable window or other
opening, e.g. an air brick.
300
B
Below gutters, soil pipes or drain pipes.
300
C
Below eaves.
300
D
Below balconies or car port roof
600
E
From vertical drain pipes and soil pipes.
75
F
From internal or external corners.
600
G
Above ground, roof or balcony level.
300
H
From a surface facing a terminal.
600
I
From a terminal facing a terminal.
600
J
Vertically from a terminal on the same wall.
1500
K
Horizontally from a terminal on the same wall.
300
L
For an opening in a car port (e.g. door, window)
into a dwelling.
1200
WARNING
If a terminal is less than 2 metres (78
3
/
4
in) above a
balcony, above ground or above a flat roof to which
people have access then a suitable
terminal guard must be provided.
Flue Dimensions
Recommendations for flues are given in BS 5440:1.
The standard flue terminal supplied with the appliance
is suitable for use with wall thickness between 100mm
(4in) and 356mm (14in).
A flue terminal extension kit is available as an optional
extra for wall thickness between 356mm (14in) and
610mm (24in) from the manufacturer. Quote appliance
Model N
o
when ordering.
D
F
F
G
B,C
A
G
E
G
J
K
D
L
H,I
Likely positions requiring
a flue terminal guard
D
A
293
208
173
13
