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W415-2044 / C / 08.20.21
EN
12
installation planning
!
WARNING
• Hearth extensions are to be installed only as described to prevent high temperatures from occurring on
concealed combustible materials. Hearth ember strips prevent burning or hot particles from inadvertently falling
directly on combustible surfaces in the event the building should settle and disturb the original construction.
An acceptable 54” (137.2cm) x 20” (50.8cm) non-combustible (ie:
brick, stone or ceramic tile) hearth extension must be installed).
The hearth must extend a minimum 20" (50.8cm) in front of the
appliance.
The hearth must extend a minimum of 12" (205mm) to both sides of
the appliance.
The hearth must be constructed of a minimum of 1" (25mm) thick cement
board (or equivalent) plus ¼" (6.4mm) ceramic tile.
Ensure that the gap between the appliance and a non-combustible
hearth extension is sealed with sand/cement grout or covered with an
ember strip (or both) to prevent sparks and embers from falling into
this area.
Raised hearths must be constructed of non-combustible materials
such as cement blocks or bricks.
While the appliance can be installed directly on the fl oor (using the ember strip), a non-combustible hearth
extension is required in front of the appliance, that must not be built higher than the bottom of the appliance
faceplate. It may therefore be advisable to build the appliance on a raised platform.
A raised hearth together with the appliance built on a raised platform is recommended for easier wood loading and fi re
viewing.
3.3 fl oor protection
3.3.1 ember strip and hearth extensions
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