Fig. 9
10
400mm interactive area
600mm load triangle
The Interactive Zone -
Openings, beams or joists within
this area need to be assessed.
Load triangle - No beam or
opening permissible within this
area
Lintel
e.g. 750mm x 75mm
Proposed Opening in
Chimney Breast
Minimum 200mm
Flue Pipe
Installation
Access
150mm
IMPORTANT
ENSURE PLATFORM FOR
SUPPORTING PRODUCT IS
APPROXIMATELY 30MM
BELOW THE BOTTOM OF
THE OPENING TO PRE-
VENT A GAP AT BOTTOM
OF THE TRIM