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Where no specific instructions are given, reference should be made to the relevant
British Standard Code of Practice.
3.2
In the United Kingdom, as supplied, this appliance can be installed in the
following situations: -
3.2.1 A masonry chimney with a minimum diameter of 175mm (7") free from any
obstruction, and with any damper or restrictor plate in the chimney removed or secured,
and having a minimum effective flue height of 3m (10ft). A masonry chimney having a
correctly installed flue liner to BS715 and with a minimum flue diameter of 125mm is
also acceptable. Chair brick removal may not be required providing at least 50mm
clearance is available from the flue outlet to any fireplace component.
3.2.1.1 'Hole-in-the-wall' Installations
It is recommended that a hearth should be installed as in figure 1.
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If a hearth is not fitted, the fire must be installed so that the distance from the
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base of the fireplace opening in the wall to the finished floor level is at least 72mm.
3.2.2 To a fireplace incorporating a metal flue box conforming to BS715 with a
minimum internal depth of 195mm. Incombustible mineral wool insulation of not less
than 100mm thickness must be applied to the top surface of the firebox (See figure 2)
and it must stand on a non-combustible hearth. See figure 1.
3.2.3 To a fireplace that has a precast
concrete or clay flue block system
conforming to BS1289 or BS EN
1806. The appliance is suitable for
installations conforming to older
versions of BS1289 as well as the
current edition. The flue blocks must
have a minimum width not less than
63mm and a cross-sectional area not
less than 13,000mm 2 . Older editions
of BS1289 required a cross-sectional
area of 13,000mm 2 . The current
revision of the standard requires
16,500mm 2 . This appliance is
suitable in both cases. The total depth
of the opening measured from the
finished front of the fireplace
(Including plaster, surround etc.)
INSTALLER GUIDE
Figure 2. Metal Flue Box
Page 7
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