Flue Terminal Position - Glow-worm Ultracom 18sxi Installation And Servicing

4 Flue Options and Terminal Clearances
HORIZONTAL FLUES
A DIRECTLY BELOW AN OPENING, AIR BRICK,
OPENING WINDOWS
B ABOVE AN OPENING, AIR BRICK,
OPENING WINDOWS
C HORIZONTALLY TO AN OPENING,
AIR BRICK, OPENING WINDOWS
D BELOW GUTTER, DRAIN/SOIL PIPE
E BELOW EAVES
F BELOW A BALCONY OR CAR PORT
G FROM VERTICAL DRAIN PIPES AND
SOIL PIPES
H FROM INTERNAL/EXTERNAL CORNERS
*
H TO A BOUNDARY ALONGSIDE THE
TERMINAL
I ABOVE ADJACENT GROUND OR
BALCONY LEVEL
*
J FROM SURFACE OR A BOUNDARY
FACING THE TERMINAL
K FACING TERMINALS
L FROM OPENING (DOOR/WINDOW)
IN CAR PORT INTO DWELLING
M VERTICAL FROM A TERMINAL
N HORIZONTALLY FROM A TERMINAL
VERTICAL FLUES
P FROM ANOTHER TERMINAL
Q ABOVE ROOF LEVEL
R FROM ADJACENT OPENING WINDOW
S FROM ADJACENT WALL TO FLUE
4.1 Flue Options
There are various flue options to choose from as illustrated in
diagram 4.1. The flue lengths and installation are described in
section 10.

4.2 Flue Terminal Position

In GB the minimum acceptable siting dimensions for the
terminal from obstructions, other terminals and ventilation
openings are shown in diagram 4.2. In IE 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, allowing free
passage of air across it at all times.
Being a condensing boiler some pluming may occur from
the flue outlet. This should be taken into consideration when
selecting the position for the terminal.
Carports 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 made of plastic sheeting. If
the carport comprises of a roof and two or more walls, seek
advice from the local gas supply company before installing the
boiler.
H* and J* See diagram 4.2 . These dimensions comply with
the building regulations, but they may need to be increased to
avoid wall staining and nuisance from pluming depending on
300
site conditions.
NOTE: If the flue terminal is positioned near a light source
300
insects may enter the flue system. Where safe and practical
to do so advise the homeowner to check the flue outlet and
300
clear visible insects from the terminal end.
25
25
4.3 Terminal Guard
25
A terminal guard is required if persons could come into contact
25
with the terminal or the terminal could be subject to damage.
25
If a terminal guard is required, it must be positioned to provide
minimum of 50mm clearance from any part of the terminal and
300
be central over the terminal.
The guard should be similar to that shown in diagram 4.3.
300
A suitable guard is manufactured by: -
600
Tower Flue Components
1200
Morley Rd.
Tonbridge
1200
Kent TN9 1RA.
1500
Size: 280mm x 165mm. Part No. CGDK3
300
600
300
1000
300
Diagram 4.2
Diagram 4.3
11