3.6.2 Any chimney damper or restrictor should be removed. If removal is not possible,
they must be secured in the open position.
3.7 Fireplace preparation.
3.7.1 If the fireplace opening is an underfloor draught type, it must be sealed to stop
any draughts.
3.7.2 The fireplace floor should be reasonably flat to ensure that the convection box
can be installed without it rocking and so that a good seal can be made at the bottom
front of the box.
3.7.3 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.
3.7.4 If the appliance is to be fitted against a
wall with combustible cladding, the cladding
must be removed from the area covered by the
fascia. The cladding must also not touch the
fascia (See figure 1). We suggest that the actual
fascia is used as a template to mark the area for
combustible cladding removal and that this area
is increased by at least 2mm all round.
3.7.5 If the fireplace opening is greater than the
acceptable dimensions given in this guide, do
not use the back of a fire surround or marble to
reduce the opening. This may cause cracking of
the surround back or marble.
3.8 The hearth.
The appliance must be mounted behind a non-
combustible hearth unless the conditions of
section 3.10.1.1 are met (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 and the bottom front cover 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.
Page 11
© Baxi Heating U.K. Limited 2009.
INSTALLER GUIDE
Figure 1. Removal of combustible
cladding (Shown with the ‘Dream’
fascia).
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