DuraVent Ventinox Rigid Factory-Built Lining System - Manual (Page 2)

Installation and Operating Instructions
Read these instructions and keep them for future reference.
Before installing this liner, consult your local building
authority and obtain a building permit
Install the liner as described in these instructions. Only use parts supplied
by DURAVENT Ltd. Failure to do so will void the certification and the
guarantee of this chimney.
GENERAL NOTES
1. Ventinox Rigid lining system can be substituted to
the traditional clay tile liner in new masonry chimney
construction.
2. The liner is intended for use with solid, liquid and
gaseous fuel burning appliances at these allowable
flue gas temperatures :
U.S CANADA
Maximum continuous 1000 F
540 C
1200 F
650 C
Brief forced firing 1400 F
760 C
1700 F
925 C
Tested to 2100 F
1150 C
( 10 min)
2100 F
1150 C
( 30 min)
TABLE 1
3. Size the liner in accordance with the appliance
manufacturer's instructions. The liner must not be
smaller than the appliance flue outlet.
4. The chimney shall extend at least 3 ft (915 mm)
above its point of contact with the roof and at least
2 ft (10 mm) higher than any wall, roof or adjacent
building within 10 ft (3 m) of it (fig. 1).
5. The clearance between single wall stove pipe and
unprotected combustible material must not be less
than 18" (457 mm) (See National Building Code or
NFPA).
6. A rain cap must be used on top of the liner to
prevent the entrance of debris, rain, birds or small
animals into the liner.
7. Homeowners must be reminded to check the rain
cap for icing during conditions of low ambient
temperatures due to the possibility of blockage
through freezing moisture. The local authority
having jurisdiction should be consulted if a rain cap
is considered in areas of low ambient temperature.
8. Masonry chimney construction:
• The masonry chimney must be built with bricks
and mortar conformed to the Building Code.
The flue opening dimension must always leave
the liner free to expand.
9. The maximum height of liner that can be installed is
60 feet (18 m).
10. Special precaution should be taken in choosing the
correct size of liner system in colder climate region.
Poor draft, excessive condensation and creosote
build-up could occur if the liner system is too big for
the application.
11. Sharp bends that would crimp and restrict the cross-
section of the liner are prohibited.
NFPA211 National
Building code
Interior
installation
2``(50 mm) 2`` (50 mm)
Exterior
installation
1`` (25 mm) 1`` (25 mm)
TABLE 2
VENTINOX LINING SYSTEM - 2
MASONRY CHIMNEY
Before installing the liner into an existing masonry
chimney, the chimney must be thoroughly cleaned
and examined. Check to ensure that the chimney is
structurally sound.
Check for cracked, loose or missing bricks, moisture
or other materials that could inhibit correct installation
of the liner.