DuraVent DuraPlus Installation - Manual (Page 4)

4
CLEARANCE
Allow at least a 2-inch clearance between
DuraPlus Pipe and any combustible materials.
Where the chimney passes through floors,
joists, or ceilings, Firestop Radiation Shields,
Support Boxes, and Close Clearance Shields
may permit reduced clearances as established
by these parts, or spacers built on to these
parts. The clearance (air space) between
the outer chimney wall, and the inside of the
Support Box, Firestop Radiation Shields,
and Close Clearance Shields, in the cases
of 7 and 8-inch diameter chimney will be less
than 2 inches. Both of these systems have
been extensively tested and evaluated at
these clearances. This reduced clearance is
permissible at these internal locations only.
All other areas require a 2-inch minimum
clearance. Never fill any required clearance
space with insulation or any other materials.
Combustible materials include lumber plywood,
sheetrock, plaster and lath, furniture, curtains,
electrical wiring and building insulation. Keep
single wall stovepipe at least 18 inches
away from combustible materials, unless a
clearance reduction system that is acceptable
to the authority having jurisdiction is used, or
the appliance to be installed is listed and the
instructions specify a different clearance.
PERMITS
Contact your local Building Official or Fire
Official regarding permits, restrictions, and
installation inspections in your area.
DURAPLUS APPLICATIONS
Use DuraPlus with wood stoves, fireplaces,
furnaces, boilers, water heaters, stoves,
ranges, or other residential-type appliances
fueled by oil, gas, coal, or wood. Do not use
with forced draft positive-pressure appliances.
DuraPlus systems are designed to extend
vertically with a maximum of (2) offsets of 30°
(offset and return). DuraPlus is tested to UL
Test Proceedure 103HT, and listed under UL
Re-examination Service Number MH7399.
Tools You May Need
Hammer Level
Caulking Gun
Plumb Bob
Screwdriver
Tin Snips
Saber or Keyhole Saw
Drill
Materials You May Need
Non-hardening Waterproof Sealant
8 Penny Nails
5/16 inch x 3 inch long Lag Screws
Roofing Nails
3/4 inch Galvanized Electrical Conduit (where
the chimney extends 4 feet or more above the
roof)
Safety Equipment
Dependable Ladder
Eye Protection
Proper Gloves and Shoes
INSTALLATION NOTES
Proper planning for your DuraPlus installation
will result in greater safety, efficiency, and
convenience, as well as saving time and
money. Use only authorized DuraPlus (SDP)
listed chimney parts. You must use 100%
DuraPlus listed parts to obtain a DuraPlus
listed system. Do not mix parts or try to
match with other products, or use improvised
solutions. Do not install damaged parts. Table
1 lists the authorized components, and their
respective Underwriter’s Laboratory Catalog