Baxi 748 Installer's Manual page 8

In England and Wales, the current edition of the Building Regulations issued by the
Department of the Environment and the Welsh Office
In Scotland, the current edition of the Building Standards (Scotland) Regulations issued
by the Scottish Executive.
In Northern Ireland, the current edition of the Building regulations (Northern Ireland)
issued by the Department of the Environment for Northern Ireland.
In the republic of Ireland the installation must be carried out by a competent person and
installed in accordance with:
a) The current edition of IS 813 "Domestic gas installations"
b) All relevant national and local rules in force.
c) The current building regulations
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 BS EN 1856 or BS 715 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.
The appliance is
designed to cater for low
lintel installations (min
height 505mm)
providing a minimum
distance of 25mm is
maintained between the
lintel and the front face
of the fireplace (i.e.
25mm rebated fire
surround).
©
Baxi Heating U.K. Limited 2006.
INSTALLER GUIDE
Figure 1. Hearth and fireplace opening dimensions
Page 8