Brochure

Z-DENS
2 3
Z-DENS
is certified for use with condensing
oil and gas fired heating appliances having
flue gas temperatures up to 248°F (120°C).
Specifications
Specially developed, fire retardant Polypropylene
ULC S636 certified for flue temperatures up to 230°F (110°C)
Guaranteed up to a max flue temperature of 230°F (110°C)
Cat II, IV Special Gas Vent
Gas Vent BH, Class IIc
Suitable for use with negative and positive pressure appliances.
Available in appliance white finish in diameters 2” and 3”.
Diameters 4”, 5”, 6”, 8”and 10” supplied in UV stabilized*
grey finish.
Pressure tested to 20 inches W.C. (5000 pa, level H1).
Significant Advantages
Complete vent system made from fire retardant polypropylene.
Long lasting and easy to install, no cure time required.
Resistant to acidic flue gas condensate reducing boiler
contamination.
In the event of expansion and contraction of the venting run,
Z-DENS
eliminates the inherent dangers found with PVC/
CPVC glued pipe joints.
Special ingredients in the material composition of Z-DENS
ensure a fire retardant system and therefore is safer to use than
other standard polymeric flue gas venting systems.
Safety
All polypropylene material, including PPs, expands and contracts
with temperature change. To ensure that the installation initially
is and remains completely flue gas tight, it is necessary that the
Z-DENS
bracket is used. For the correct installation of the bracket,
follow the instructions in the installation manual (download at
www.z-flex.com). Only by following these instructions can Z-DENS
guarantee a safe and flue gas tight installation. Exclusive use of
Z-DENS
lubricant when installing Z-DENS
PPs, ensures that a
reliable and safe connection is guaranteed.
Environment
During the production of PPs flue gas systems less CO
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is produced
than with the production of traditional metal flue gas systems.
*UV stabilized parts available.
Design Considerations
Greater efficiencies and a more aesthetically pleasing presence
can also be achieved by using Z-DENS
as the fresh air inlet.
Z-DENS
Single Wall
Approved polypropylene Vent Manufacturers
Supplier Model
Z-Flex U.S. Inc.
20 Commerce Park N,
Bedford, NH, 03110
Ph. 800-654-5600
Z-Dens/Cox Geelen
Specication