FLUE HEIGHT
The flue must be high enough 4.5 mts (15ft)
minimum measured vertically from the appliance
outlet to the top of the flue terminal to allow the flue
gases to vent into the clear air, away from the
turbulence that may be caused by roof structures,
other chimney stacks, etc. The terminal position
should be in accordance with the relevant Building
Regulations.
FLUE SYSTEM
Where the 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
obstructions.
With
such
installations, access to the chimney must be
provided for cleaning purposes.
Horizontal runs more than 450mm (18”) and 90
°
bends numbering more than 2 per installation
should be avoided.
Fig.12
STANLEY CAST IRON PIPES AND BENDS ARE
HIGHLY RECOMMENDED FOR INTERIOR USE.
WHERE THE APPLIANCE SPIGOT OR FLUE
PIPE PROTRUDES INTO THE CHIMNEY, CARE
SHOULD BE TAKEN TO ENSURE THAT IT DOES
NOT BLOCK THE CHIMNEY.
SUITABLE MATERIALS
*
Mineral Fibre cement pipes.
*
Insulated metal chimneys conforming to B.S.
4543. (a galvanised finish is not suitable for
exterior use).
*
Clay flue linings.
*
Pre-cast concrete chimney blocks,
incorporated into the building structure. It is
particularly important that the correct
connection block be provided at the base of
the flue.
*
Cast iron or acid resistant vitreous enamel
lined mild steel to B.S. 41.
*
Sheet metal.
FLUE CLEANING
The flue pipe must be fitted with a cleaning plate.
The flue must be inspected annually and cleaned
when necessary.
USE OF EXISTING FLUES AND CHIMNEYS
When connecting to an existing chimney it is
necessary to line the flue using approved 150mm
(6”) rigid or flexible stainless steel flue liner.
An existing flue pipe or chimney that has proved to
be satisfactory when used for solid fuel can
normally be used for this appliance provided that its
construction, condition and dimensions are
acceptable. Flues that have proved to be
unsatisfactory, particularly with regard to down
draught, must not be considered for this appliance
until they have been examined and any faults
corrected. If there is any doubt about an existing
chimney a smoke test should be carried out.
Before connecting this appliance to a chimney or
flue pipe which has previously been used with
another fuel, the chimney or flue pipe should be
thoroughly swept and lined accordingly.
All register plates, restricter plates and dampers etc.
which could obstruct the flue at a future date should
be removed before connecting this appliance.
Where a chimney is not required to be lined a
suitable void should be provided at the base to
contain any debris which might fall from the inside
wall, so as to prevent debris from obstructing the
appliance flue outlet. (Removal of debris should be
facilitated by the provision of an access door).
If it is necessary to offset the chimney the
recommended angle is 60
°
to the horizontal and the
statutory minimum is 45
°
. (See Fig.12)
CONNECTIONS
Stanley produces the appropriate pipes and bends
used in conjunction with this cooker. Waterford
Stanley Limited will accept no liability whatsoever
ever in the event that alternative pipes and bends
are used in the installation. A cast iron 90
°
bend
with cleaning door is provided with the cooker. A
vertical cast iron outlet pipe with cleaning door is
also available. A flexible flue adaptor is supplied,
this is to connect the cooker 150mm (6”) bend or
straight pipe to the 150mm (6”) chimney liner.
ALL
FLUE
CONNECTIONS
MUST
BE
THOROUGHLY SEALED
. Blocked chimneys are
dangerous, keep chimneys and flue ways clean,
read the operating instructions.
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