DuraVent DuraChimney II - Manual (Page 5)

5
EQUIPMENT & MATERIALS
Drill / Driver
Hammer
Caulking Gun
Plumb Bob
Screwdrivers (Phillips & Standard)
Tin Snips
Saber or Keyhole Saw
Level
Dependable Ladder
Tape Measure
Proper Gloves and Shoes
Eye Protection
Materials You May Need:
Non-hardening Waterproof Sealant
8-Penny Nails,
600°F RTV Silicone Sealant
Roofing Nails
#8, 2-1/2” & 1-1/2” Wood Screws
INSTALLATION NOTES
Proper planning for your DuraChimney
II installation will result in greater safety,
efficiency, and convenience, as well as
saving time and money. You must use only
authorized DuraChimney II parts to maintain
a listed chimney system. Do not mix parts
or try to match with other products or use
improvised solutions. Do not install damaged
or modified parts. Practice good workmanship.
Sloppy work could jeopardize your chimney’s
safety. Keep electrical wiring and building
insulation away from all chimneys. When
deciding the location of your chimney, try to
avoid modifications to roof beams and other
structural components of the building. Contact
either your dealer or DuraVent directly if you
have any questions.
CHIMNEy DIAMETER
Follow the fireplace manufacturer’s manual
to determine required chimney diameter and
clearances between combustible materials
and your fireplace. Never use a chimney
with an inside diameter smaller than your
flue opening above firebox unless specifically
allowed by the fireplace manufacturer. If you
are connecting to a masonry fireplace, refer to
Table 2 (pg 11) for proper sizing. To calculate
the chimney’s outside diameter, add 3 inches
to the inside diameter.
CHIMNEy HEIGHT
The National Fire Protection Association
Standard #211 states: “Chimneys shall extend at
least three feet above the highest point where it
passes through the roof of a building, and at least
two feet higher than any portion of a building
within ten feet.” (Fig. 1). Due to the overlap of
the joints, subtract 1 inch from each Chimney
Section’s height to calculate installed height.
CHIMNEy ENCLOSURE
REQUIREMENTS
Through Rooms: Interior chimneys shall
be enclosed where they extend through
closets, storage areas, occupied spaces, or
anywhere where the surface of the chimney
could be contacted by persons or combustible
materials (including insulation). The air space
between the outer wall of the chimney and the
enclosure shall be at least 2 inches
Multi-Story: Consult local building code
officials for requirements in your area. The
National Fire Protection Association Standard
#211 states: “Factory-built chimneys that
3 FOOT MINIMUM
ABOVE ROOFLINE
2 FOOT
ABOVE
10 FOOT
HORIZONTAL
ANY POINT
WITHIN
Figure 1