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3.5.1. Floor Level and Raised Fireplace Openings
OW
O
H
OD
HW
HD
50mm
Figure 32
OW
O
H
OD
HW
HD
50mm
Figure 33
16” Models
18” Models
OH
For use in
calculating flue
diameter
For use in
calculating flue
diameter
OW
A minimum of
400mm
A minimum of
450mm
OD
A minimum of
200mm
A minimum of
200mm
HW
A minimum of
700mm
A minimum of
750mm
HD
Must project a
minimum of
300mm in front
of any naked
flame or
incandescent
material
Must project a
minimum of
300mm in front
of any naked
flame or
incandescent
material
Table 1
Hearth Construction:
The hearth material must be non-combustible and a
minimum of 12mm thick, when laid on the floor. Either a 50mm upstand above
the finished floor level must be created or a fixed fender must be used.
