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UK
IRL
3.3.2
Using an existing chimney as air inlet
You can connect the appliance onto an existing chimney. The existing chimney then
functions as air supply, where a flexible stainless steel liner (to BS715) of 100 mm performs
the flue function.
Requirements:
Any existing chimney used as an air supply must only service this appliance.
A chimney that has previously been used for solid fuel must be swept before use.
The existing chimney needs to be airtight.
The existing chimney needs to have an opening of min. 150 x 150 mm.
The chimney needs to be intact and well looked after.
Use the Faber adjustable roof-mounted-terminal especially made for this purpose, and the
chimney connection set.
The min. distance between two terminals should be at least 450 mm.
Dimension Terminal position
(kW input 7.5 kW expressed in net)
Balanced flue room
sealed
Natural Draught
A
Direct below an opening, airbrick, opening windows, etc.
300
mm
B
Above an opening, airbrick, opening window, etc.
300
mm
C
Horizontally to an opening, airbrick, opening window, etc.
300
mm
D
Below gutters, soil pipes or drain pipes
500
mm
E
Below eaves
500
mm
F
Below balconies or carport roof
600
mm
G
From a vertical drain pipe or soil pipe
300
mm
H
From an internal or external corner
600
mm
I
Above ground roof or balcony level
300
mm
J
From a surface facing the terminal
600
mm
K
From a terminal facing a terminal
600
mm
L
From an opening in the carport into the dwelling
1200
mm
M
Vertically from a terminal on the same wall
1500
mm
N
Horizontally from a terminal on the same wall
300
mm
P
From a vertical structure on the roof
600
mm
Q
Above intersection with roof
500
mm
