Preparation Of Firebox Opening - Flavel Castelle Installation, Maintenance And User Instructions

2.3 PREPARATION OF THE FIREBOX OPENING
2.3.1. If installing the product into a hole in the wall type installation, create an
opening as shown in figure 4 below. If installing into a conventional
opening with a hearth panel, create an opening as shown in figure 5
below.
Fig. 4 - Hole in the Wall Installations
100mm Minimum
This will ensure that the
distance from floor level to
the burner is 225mm and
hence complies with
Document J of the building
regulations (paragraph 3.4)
Fig. 5 - Conventional Installations
70mm Minimum
This will ensure clearance for
the fascia assembly
50mm
Min. 490mm
Max. 500mm
Min. 490mm
Max. 500mm
750mm Minimum
12
300mm
Minimum