Rayburn 370 SFW Installation Instructions Manual - page 6
The position of available types of flue layouts are
shown in Figs. 2, 3 and 4, the cooker flue chamber is
adaptable to provide either top or back flue outlets,
by means of the reversible loose socket.
(a)
Rear Flue Outlet
This must only be used where there is a brick flue
immediately behind the cooker. Provision must be
made for a condensate collecting vessel and
cleaning door. See Fig. 3.
NOTE:
MAXIMUM HORIZONTAL LENGTH 150mm.
EXTENDED REAR FLUE PIPE AND BENDS
ARE NOT RECOMMENDED.
(b)
Top Flue Outlet
The cooker should be connected to the main flue
via a 150mm minimum diameter cast iron pipe or
appropriately sized vitreous enamelled mild steel
pipe and be sealed to the cooker flue chamber
with soft rope and fire cement.
Any bends in the flue pipe must be not less than
135º (45º from horizontal) and be complete with
a cleaning door.
COOKER FLUE CONNECTION
Fig. 2
Fig. 3
Fig. 4
DESN 515206
DESN 515207
DESN 515208 A
A minimum 6” vertical length of flue pipe must be fitted
before any bend is included.
FLUE LAYOUTS
In Fig. 2. the cooker is installed in an existing recess.
There must be a clearance of not less than 150mm
between the top of the flue pipe and any overhanging
brickwork.
Any cavities or pockets above the register plate
should as far as possible be filled and if necessary
the flue pipe should be extended into the throat of the
chimney and soot door provided for chimney sweep-
ing.
If a flue liner or insulated chimney is used, the size
should not be less than 150mm diameter.
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