Floor Protection; Ember Strip And Hearth Extensions - Napoleon NZ7000 Installation And Operating Instructions Manual

12
3.3

FLOOR PROTECTION

3.3.1 EMBER STRIP AND HEARTH EXTENSIONS

EN
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
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.
W415-1676 / B / 10.26.17
DISTURB THE ORIGINAL CONSTRUCTION.
EMBER STRIP
(See "HEARTH
EXAMPLES" Section)