DuraVent DuraChimney II - Manual (Page 4)

4
DuraChimney is designed to stay cool on the
outside, to provide a hot draft on the inside,
and to provide for a fire-safe design that
protects both the chimney and the building.
The double-wall air-cooled design allows the
chimney to expand under high temperatures.
Applications
DuraChimney II is listed to UL 103 and
ULC S604 standards for use on masonry
fireplaces which burn wood, oil, coal, or gas.
Some factory-built fireplaces may be listed
with DuraChimney II. Check to the fireplace
manufacturer’s instructions for their listing and
conditions of use.
Materials and Construction
.016” 430 stainless steel inner wall and .021”
galvanized steel outer wall. 2” clearance to
combustibles.
Listings
UL Listed to UL 103 and ULC S604 standards.
CLEARANCES
Always allow at least a 2-inch air-space
clearance between DuraChimney II Pipe
and any combustible materials. Never fill any
required clearance space with insulation or
any other materials. Combustible materials
include, but is not limited to, lumber, plywood,
sheetrock, plaster and lath, furniture, curtains,
electrical wiring, and building insulation.
PERMITS
Contact your local Building Official or Fire
Official regarding permits, restrictions, and
installation inspections in your area.
CHIMNEy APPLICATIONS
DuraChimney II is a complete chimney
system tested and listed to test procedures
UL 103 and ULC S604. In the United States,
DuraChimney II can be used with masonry
fireplaces or appliances fueled by oil, gas,
coal, or wood that have been tested and listed
for use with a UL 103 chimney system. In
Canada, DuraChimney II can be used with
listed oil & gas fired appliances or wood-
burning fireplaces requiring a Type A Chimney,
in accordance with ULC S604.
DuraChimney II may also be listed with
some factory-built fireplaces. Check with the
fireplace manufacturer if DuraChimney II
can be used on their fireplaces, and if there
are any limitations of use. Do not use with
forced draft or positive-pressure appliances.
The DuraChimney II system is designed to
extend vertically with a maximum of one (1)
offset (two elbows total) of up to 30° from
vertical. DuraChimney II is listed under UL Re-
examination Service Number MH7399.