Napoleon Fireplaces NZ26 - Manual (Page 7)

W415-0156 / B / 10.31.05
7
Mantle clearance can vary ac-
cording to the mantle depth.
An acceptable 16" x 50" non-combustible (ie: brick, stone
or ceramic tile) hearth extension must be installed. En-
sure that the gap between the fireplace and a factory-built
hearth extension is sealed with sand/cement grout or cov-
ered with a metal strip (or both) to prevent sparks and
embers from falling into this area. A raised hearth together
with the fireplace built on a raised platform is recommended
for easier wood loading and fire viewing.
A chimney venting the fireplace shall not vent any
other appliance.
The minimum overall chimney height from the top
of the fireplace is 11 feet.
The maximum overall chimney height from the top
of the fireplace is 34 feet.
Factory-built chimney systems for use in dwell-
ings constructed for three or more families must
be enclosed above the room in which the fireplace
is located. This enclosure must have a fire resist-
ance rating equal to or greater than that of the
floor or roof assembly through which they pass.
If the chimney system is enclosed within the attic
area, a rafter radiation shield is required.
The chimney should not be built with an offset an-
gle in excess of 45° in Canada and 30° in USA.
The chimney must extend at least 3 feet above its
point of contact with the roof and at least 2 feet
higher than any wall, roof or building within 10
feet.