INSTALLER’S GUIDE
Page 9
smaller than 170mm.
4.11
If the fireplace opening is an underfloor draught type, it must be sealed to stop any
draughts.
4.12
The appliance must be mounted behind a non-combustible hearth (n.b conglomerate
marble hearths are considered as non-combustible). The appliance can be fitted to a
purpose made proprietary class “O” 150°C surround. The hearth material must be at least
12mm thick. The periphery of the hearth (or fender) should be at least 50mm above floor
level to discourage the placing of carpets or rugs over it.
The surface of the hearth must be sufficiently flat to enable the bottom of the front
surround, the burner bracket and the bottom front cover casting to be aligned
horizontally. Any excessive unevenness (uneven tiles, Cotswold stone, etc.) should be
rectified.
The appliance must not stand on combustible materials or carpets.
The appliance must not be fitted directly against a combustible wall.
If the appliance
is to be fitted against a wall with combustible cladding, the cladding must be removed
from the area covered by the outer surround
(See figure 1). We suggest that the actual
surround is used as a template to mark the area for combustible cladding removal.
4.13
The front face of the fireplace should be reasonably flat over the area covered by the
convection box top and side flange seals to ensure good sealing. These faces should be
made good if necessary.
The fireplace floor should be reasonably flat to ensure that a good seal with the convection
box can be made (See figure 15).
4.14
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.
4.15
Propane gas appliances must not be installed in a room, which is built entirely
below ground level (See BS 5871 Part 2).