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- The relevant parts of the current editions of the following British Standards:-
BS 715 BS 6461 Part 1 & 2
BS 1251 BS 6891
BS 4543 Part 2 BS 7556
BS 5440 Part 1 & 2 BS 8303
BS 5871 Part 3
In other countries the installation must also conform with the national and local regulations in force.
Installation requirements
As supplied the appliance can be installed into a builders opening fitted with a chairbrick conforming
to British Standard 1251 - Specification for open fireplace components.
Suitable flues and minimum flue sizes are as follows:-
a) 225mm x 225mm conventional brick flue.
b) 175mm diameter lined brick or stone flue.
c) 200mm diameter factory made insulated flue manufactured to BS 4543.
d) 175mm diameter flue pipe. See BS 6461 Part 1 for suitable materials.
It should be noted that, as with many appliances, sharp bends or horizontal runs in metal flues at the
top of the system can be a cause of problems in these types of installation.
The minimum effective height of the flue must be 3m. The flue must have a positive updraught.
The flue must not be used for any other appliance or application.
Any chimney damper or restrictor should be removed. If removal is not possible, they must be
secured in the fully open position.
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.
Any underfloor vents or openings within the builders opening should be sealed off.
The appliance must be mounted on a non-combustible hearth (N.B. con-glomerate marble hearths
are considered as non-combustible). The hearth material must be at least 12mm thick. The
periphery of the hearth (or fender) should be at least 50mm above floor level and extend 300mm in
front of the fire and 150mm either side.
The surface of the hearth must be sufficiently flat to enable the bottom of the front surround and ash
pan cover to be aligned horizontally. Any excessive unevenness (uneven tiles, stone, etc.) should be
rectified.
The appliance must not stand on combustible materials or carpets.
The minimum height from the top of the fireplace opening of the fire to the underside of any shelf
made from wood or other combustible materials is as follows:-
x For a shelf up to 150mm deep - Minimum height = 300mm.
As on all heat producing appliances, soft furnishings such as blown vinyl wallpaper placed too near
the appliance may become scorched or discoloured. This should be borne in mind when installing
the appliance.
This appliance must not be installed in any room which contains a bath or shower.
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