c) A flue pipe with a minimum diameter of
127mm (5in.). See BS6461 Part 1 for
suitable materials.
Metal flue pipes must comply with
BS715. See section 2.2.4. for metal flue box
requirements.
2.4.1.
The flue must have a minimum equivalent
height of 3m.
2.4.2.
The flue must serve only one fireplace.
2.4.3.
Any damper or register plate should be
removed. If removal is not possible without
carrying out structural work, the damper or
plate may be left in the flue provided that it
is permanently secured in the fully open
position
2.4.4.
If the appliance is intended to be installed to
a chimney which was
previously used for solid fuel, the flue must
be swept clean prior to
installation. All flues should be inspected for
soundness and freedom from blockages.
2.5
If the fireplace opening is an underfloor
draught type, it must be sealed to stop any
draughts.
2.6.
The flue spigot and any spigot extension
must be capable of passing through the
closure plate by at least 25mm with a
minimum clearance of 50mm between its
open end and the nearest obstruction.
There must be a minimum clearance of
165mm between the back of the
closure plate and the back of the catchment
space.
The catchment space below the flue spigot
must extend at least 250mm downwards
measured from the bottom of the flue
spigot.
See figure 2.
2.7.
The front face of the fireplace should be
reasonably flat to ensure that a good seal
can be made with the closure plate.
2.8.
The minimum clearance from the top
surface of the appliance to the
underside of any shelf made from wood or
other combustible materials is as follows:-
•
For a shelf up to 150mm deep
Minimum height = 203mm
• For a shelf deeper than 150mm
203mm + 12.5mm for every 25mm
depth over
150mm.
2.9.
The minimum allowable distance to a corner
wall or other projection at either side of the
appliance is 100mm.
2.10
The space between the back of the outer
case and the front face of the
fireplace must not be filled in.
2.11.
Note that soft wall coverings (e.g. embossed
vinyl, etc.) are easily affected by heat. They
may scorch or become discoloured when
close to a heating appliance. Please bear
this in mind when installing.
2.12.
An extractor fan may only be used in the
same room as this appliance, or in any area
from which ventilation for the appliance is
taken, if it does not affect the safe
performance of the appliance. Note the
spillage test
requirements detailed further on in this
manual. If the fan is likely to affect the
appliance, the appliance must not be
installed unless the fan is
permanently disconnected.
2.13.
No special ventilation bricks or vents are
required in the room for this
appliance.
Page 6
figure 2
INSTALLATION & SERVICING INSTRUCTIONS
Valor Folium Format U/down 12/4 5/22/00 9:33 AM Page 6
