5
SITING THE APPLIANCE
Fireplace Opening
The fireplace opening must be between 405mm and 450mm wide and between 555mm and 570mm high. If
the opening intended for the appliance is in excess of these dimensions then a suitable surround must be
constructed of non-combustible material to produce an opening within this range of dimensions.
A flat face of a minimum 470mm wide and 590mm high must be provided around the fireplace opening to ensure a
good seal is formed. In addition it is important to ensure that the base of the fireplace opening is flat and level with
the hearth surface to ensure a secure and aligned installation of the appliance.
The minimum hearth dimensions are shown in the diagram above. The upper surface of the hearth must be a
minimum of 50mm above the floor and must protrude a minimum distance of 300mm out from the fireplace
opening. (It is important to note that should a spacer of any kind be used to bring the appliance out of the fireplace,
then the 300mm dimension must be taken from the most forward surface of this spacer.
Installation into a Brick Chimney
When the appliance is being installed into a brick chimney there must be sufficient depth behind the appliance to
accommodate any falling debris. This debris collection void should be capable of accommodating up to twelve (12)
litres of volumetric space.
Installation into a Prefabricated Twin Wall Metal Flue Box
This appliance can be installed into a prefabricated metal twin wall flue box providing it complies to the requirements
of BS715 / BS EN 1856-2. The box must have an insulated flue with a minimum diameter of 125mm (5”) diameter and
a minimum effective overall height of 3 metres.
The top outer face of the flue box should be insulated to prevent heat loss with a layer of mineral wool insulation or
similar. The metal flue box must stand on a non-combustible surface with a minimum thickness of 12mm.
Installation into a PRE-CAST FLUE Installation
If the XE product is being fitted see IMPORTANT NOTE on page 4 of these instructions.
Ensure that there is a minimum of 125mm from the front of the fireplace opening to the rear of the flue starter
block—this is to ensure that sufficient clearance is allowed for debris collection.
