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3.3
floor protection / ember strip and hearth extensions
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 70" (177.8cm) x 20" (50.8cm) non-combustible (ie: brick, stone or ceramic tile) hearth extension
must be installed. Hearth must extend 20" (50.8cm) in front of the faceplate. Hearth must extend a minimum of
12" (30.5cm) to both sides of the appliance door opening. See local building codes for more detailed dimensions.
The hearth must extend a minimum 20" (50.8cm) in front of the appliance although if raised a minimum of 6 1/2"
(165mm) the 20" (50.8cm) may be reduced to a minimum of 18" (45.7cm).
The hearth must be 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 floor (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 fire viewing.
installation planning
EMBER STRIP
(See "HEARTH
EXAMPLES" Section)
W415-1676 / C / 07.23.18
EN
13
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