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8.2 Flue Terminal Locations
MINIMUM DISTANCES TO TERMINALS IN MILLIMETRES AS MEASURED FROM THE
TOP OF THE CHIMNEY OR THE RIM OF A LOW LEVEL DISCHARGE OPENING
A Directly below an opening, air brick, opening window etc. 600
B Horizontally to an opening, air brick, opening window etc. 600
C Below a gutter, eaves or balcony with protection. 75
D Below a gutter or a balcony without protection. 600
E From vertical sanitary pipework. 300
F From an internal or external corner, surface or boundary alongside the
terminal. 300
G Above ground or balcony level. 300
H From a surface or a boundary facing the terminal. 600
J From a terminal facing the terminal. 1200
K Vertically from a terminal on the same wall. 1500
L Horizontally from a terminal on the same wall. 750
M Above the highest point of an intersection with the roof. 600
N From a vertical structure on the side of the terminal. 750
O Above a vertical structure less than 750mm from the side of the terminal. 600
P From a ridge terminal to a vertical structure on the roof. 1500
These are minimum dimensions and are only quoted as guidelines.
Installation in exposed positions is not recommended. Account must be made of
the pluming from the flue. If it is likely to be a nuisance to the householder the use
of a vertical balanced flue or conventional flue should be considered.
Terminating positions must be at least 1.8 metres from an oil storage tank unless
a wall with at least 30 minute fire resistance and extending 300 mm higher and
wider than the tank is provided between the tank and the terminating position.