© 2007-2008 Broseley Fires Ltd
Hearth
Your stove must be installed on a solid, level non-combustible hearth and with a gap of
at least 600mm from any combustible material such as beams or skirting. The hearth
protrusion in front of the stove to carpets or wooden floors must be at least 300mm. As
it is possible, that on opening the door of the stove for fuel to fall out, a fender must be
fitted if the hearth is flush with the carpet. These are just a few hearth specifications.
Please refer to Building Regulations Approved Document J (Hearths) for more specific
details.
The appliance should be sited in a properly constructed brick fireplace or recess allowing
a gap of 100mm all round, at the rear and both sides. The fireplace walls must be made
of solid non combustible material and at least 75mm thick. It is possible to reduce the all
round clearance to 75mm but this will reduce the ability of the appliance to heat the
room and could lead to over firing of the stove and structural damage to the surround.
If this reduced air gap is unavoidable it will be necessary to increase the thickness of the
surrounding wall to 200mm. If the air gap around the appliance is reduced to 75mm,
then increase the gap above to 375mm to allow the air to move into the room. The
hearth should be level and the appliance fitted at right angles to it. Fireplace walls need
to be at least 1.2m above the hearth and at least 300mm above the appliance. The
hearth has to be able to support the weight of the appliance and any flue bearing down
upon it. The clearance distances to combustible material beneath, surrounding or upon
the hearth and walls adjacent to the hearth should comply with the guidance on the
separation of combustible material given in Building Regulations Approved Document J
and also in these stove instructions.
Chimney
This appliance must not be fitted into a chimney serving another heating appliance. It is
most important that there is no obstruction in the flue or chimney. Please ensure that
any existing chimney is clear of obstruction and swept clean immediately before
installation of the stove. If the chimney has been used for an open fire it is
recommended that it be swept for a second time having been used for a month
following installation. As a closed appliance operates at a higher flue temperature, it is
possible for deposits that were previously adhered, to be dislodged, with the consequent
risk of flue blockage.
A flue draught of minimum 1.5mm (14.71 Pascal’s) to a maximum 2.5mm (24.52
Pascal’s) water gauge is required for satisfactory appliance performance. A properly built
masonry or factory constructed chimney, preferably with a height of 5 metres or more,
should ensure a consistent draught (draw) under a variety of weather conditions. The
flue draught should be checked under fire at high output and if it exceeds the
recommended maximum, a draught stabiliser must be fitted so that the rate of burning
can be controlled, and to prevent over firing (see 5 below). If you have any doubts
about the suitability of your chimney, consult your local dealer/stockist.
The outlet from the chimney should be above the roof of the building in accordance with
the provisions of Building Regulations Approved Document J.
If installation is into an existing chimney then it must be sound and have no cracks or
other faults which might allow fumes into the house. Older properties, especially, may
have chimney faults or the cross section may be too large i.e. more than 230 mm x 230
mm. Remedial action should be taken, if required, seeking expert advice, if necessary. If
it is found necessary to line the chimney then a flue liner suitable for solid fuel must be
used in accordance with Building Regulations Approved Document J.
