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2.1 Terminal Position
The minimum acceptable siting dimensions for the terminal
from obstructions, other terminals and ventilation openings are
shown in diagram 2.1. For Ireland the minimum distances for
flue terminal positioning must be those detailed in I.S.813
"Domestic Gas Installations".
The terminal must be exposed to the external air, the position
allowing free passage of air across it at all times.
Car ports or similar extensions of a roof only, or a roof and one
wall, require special consideration with respect to any openings,
doors, vents or windows under the roof. Care is required to
protect the roof if it is made of plastic sheeting. If the car port
consists of a roof and two or more walls, seek advice from the
local gas company before installing the boiler.
If the terminal is fitted within 600mm below plastic guttering or
painted soffit an aluminium shield 1500mm long should be fitted
immediately beneath the guttering or eaves. If the terminal is
fitted within 450mm below painted eaves or a painted gutter, an
aluminium shield 750mm long should be fitted immediately
beneath the guttering or eaves.
2.2 Terminal Guard
A terminal guard is required if persons could come into contact
with the terminal or the terminal could be subject to damage.
If a terminal guard is required, it must be positioned to provide
a minimum of 50mm clearance from any part of the terminal and
be central over the terminal.
A suitable guard, reference Type K3, can be obtained from:
Tower Flue Components Ltd
Morley Road
Tonbridge
Kent
TN9 1RA
2000225135A
2 Flue Terminal
A
F
G
Under Car Port etc.
MINIMUM SITING DIMENSIONS FOR
FANNED FLUE TERMINALS POSITION
A DIRECTLY BELOW, ABOVE OR HORIZONTALLY
TO AN OPENING, AIR BRICK, OPENING WINDOWS,
AIR VENT OR ANY OTHER
VENTILATION OPENING.
B BELOW GUTTER, DRAIN/SOIL PIPE
C BELOW EAVES
D BELOW A BALCONY OR CAR PORT
E FROM VERTICAL DRAIN PIPES AND SOIL PIPES
F FROM INTERNAL/EXTERNAL CORNERS
OR TO A BOUNDARY ALONGSIDE
THE TERMINAL
G ABOVE ADJACENT GROUND OR BALCONY LEVEL 25
H FROM A SURFACE FACING THE TERMINAL
I
FACING TERMINALS
J FROM OPENING (DOOR/WINDOW) IN
CAR PORT INTO DWELLING
K VERTICAL FROM A TERMINAL
L HORIZONTALLY FROM A TERMINAL
M FROM INTERNAL CORNERS
12
A
B,C
B,C
G
K
M
F
A
E
G
G
H,I
C
K
L
L
K
F
G
D
J
F
K
MINIMUM
SPACING in mm
300
75
200
200
25
25
600
1200
1200
1500
300
25
Diagram 2.1
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