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4
Z
Z
CONSTRUCTIONAL HEARTH
300
Hearth distance 'X' from wall
0mm
0mm
0 - 150mm
+150mm
6
Seal with fire
proof lagging
Z = At least 150mm or to a
Z
suitably heat resistant wall
(See table 3)
NON COMBUSTIBLE
125mm THICK MINIMUM
Table 3 - Position of Hearth & Appliance from adjacent walls
Appliance distance from walls
0 - 50mm
51 - 150mm
150 - 300mm
+300mm
150 Max
45°
Max
5
H
See Table 3
T
X
MIN
125mm
Min Wall Thickness 'T'
200mm
75mm
75mm
No Minimum Requirement
7
SEAL
Solid, non-combustible
material e.g. masonary
or concrete
T
X
MIN
150mm
Min Wall height 'H'
Height of appliance +300mm
or 1200mm from hearth
(whichever is greater)
CLOSURE
PLATE
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