
2.3
PREPARATION OF THE COMBUSTION CHAMBER OPENING
(INTO EXISTING CHIMNEY BREAST)
2.3.1
An opening should be constructed to the following dimensions in the
existing chimney breast. See figure 6 below.
Fig. 6
PLEASE NOTE : The opening size as detailed above will require
reducing in size to the product aperture and finishing in a high
temperature plaster finish as detailed in section 2.8
NOTE : Please ensure that suitable cut outs in the sides and front face of the
chimney breast are implemented for fixing of the flue pipe, and for future
servicing.
9
Width = 835mm
Height = 545mm
Depth = 370mm
Lintle must
project 150mm
either side of the
opening if
cutting into an
existing chimney
breast