Specifications

=
Terminal position
with minimum distance (mm)
A* Directly below an opening, air brick, opening window etc. 300
B* Above an opening, air brick, opening window etc. 300
C* Horizontally to an opening, air brick, opening window etc. 300
D Below gutters, soil pipes or drain pipes. 150
E Below eaves. 200
F Below balconies or carport roof. 200
G From a vertical drain pipe or soil pipe. 150
H From an internal (i) or external (ii) corner. 300
I Above ground, roof or balcony level. 300
J From a surface or boundary line facing a terminal. 600
K From a terminal facing a terminal (horizontal flue). 1200
From a terminal facing a terminal (vertical flue). 600
L From an opening in carport (e.g. door, window) 1200
into the dwelling.
M Vertically from a terminal on the same wall. 1500
N Horizontally from a terminal on the same wall. 300
R From adjacent wall to flue (vertical only). 300
S From an adjacent opening window (vertical only). 1000
* In addition, the terminal should be no nearer than 150mm to an opening in the building
fabric formed for the purpose of accommodating a built-in element such as a window
frame. See BS 5440 Pt1.
Reduced clearances: This range of boilers has been tested and approved for use with certain clearances less than those shown.
Horizontal flues in positions D, E, F, G & H(i) may be reduced to 25mm. H(ii) may only be reduced to 115mm.
Only one of these reductions may be used on a single installation.
FLUE POSITIONING GUIDE
NOTE: The distance from a fanned draught
appliance terminal installed parallel to a
boundary may not be less than 300mm in
accordance with the diagram above, unless
the flue deflector kit is used. This can then
be reduced to a min of 25mm.
Property Boundary
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91529 A4 Main Range Brochure.indd 24 16/05/2014 14:30