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Fig.5
Fig. 6
Fig.7
Where the flue passes through a combustible
material a twin wall solid packed insulated chimney
connector must be used and must come flush with
the outer surface of the material and run all the way
to the masonry chimney or to the point of termination
of the factory made chimney. (See Fig.7).
FLUE HEIGHT
The flue must be high enough, not less than 4.5m
(14' 6") measured vertically from the appliance outlet
to the top of the flue terminal to allow the gases to
vent into clear air, away from the turbulence that
may be caused by roof structures, other chimney
stacks, etc. The venting terminal position should be
MINIMUM CLEARANCES
TO COMBUSTIBLES
MINIMUM
CLEARANCES
TO NON-COMBUSTIBLES
9" (228mm)
Insulation
in accordance with the Building Regulations & B.S.
5410: Part 1.
FLUE SYSTEM
Where a standard masonry chimney is not available,
a proprietary type of non-combustible or non-
corrosive material 150mm (6") twin wall, fully
insulated pipe may be used. The pipe must
terminate at a point not lower than the main ridge or
adjacent
outside
installations exist, access to the chimney must be
provided for cleaning purposes.
Horizontal runs more than 305mm (12") and 90
bends numbering more than 2 per installation should
be avoided.
If it is necessary to offset the chimney the
recommended angle is 60
statutory minimum is 45
CONNECTIONS
o
A cast iron 90
bend with cleaning door is supplied
with the cooker. A vertical cast iron outlet pipe with
cleaning door is available to order.
ALL
FLUE
CONNECTIONS
THOROUGHLY SEALED. Blocked chimneys are
dangerous, keep chimneys and flueways clear, read
the operating instructions.
DONARD CAST IRON PIPES AND BENDS ARE
HIGHLY RECOMMENDED FOR INTERIOR USE.
NOTE: Maximum horizontal length should not be more
than 300mm (12").
WHERE THE APPLIANCE SPIGOT OR FLUE PIPES
PROTRUDES INTO THE CHIMNEY, CARE SHOULD
BE TAKEN TO ENSURE THAT IT DOES NOT BLOCK
THE CHIMNEY.
FLUE CLEANING
The flue pipe must be fitted with a cleaning plate.
The flue must be inspected annually and cleaned
when necessary.
8
obstructions.
Where
o
to the horizontal and the
o
. (See Fig. 8).
Fig.8
MUST
such
o
BE
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