4
Typical Installations & Surroundings
1.
This system may be installed in any combination of vertical and horizontal, enclosed and unenclosed
configurations. The total length and number of fittings should not exceed the appliance manufacturer’s
recommendations. This system may also be installed within an existing unused masonry chimney,
unused B-vent or chimney system. The flexible pipe system may only be used vertically and can be used
in all installations (combustible enclosure, unused existing masonry chimney, or unused existing B-
vent/chimney system). It is limited to 66 feet (20.1m) in height.
Except for installation in single-and two-
family dwellings, metal venting systems which extend through any story above that on which the
connected appliance is located are to be provided with enclosures having a fire resistance rating equal to
or greater than that of the floor or roof assemblies through which they pass.
Horizontal Installation of
Single Wall Pipe
TERMINATION
SCREEN
WALL PLATE
(OPTIONAL)
APPLIANCE
ADAPTER
RIGID
PIPE
APPLIANCE
LOCKING
BANDS
HANGING
BANDS
APPLIANCE
FLUE
VENT
COMBUSTION
AIR VENT
APPLIANCE
ADAPTER
RIGID
PIPE
LOCKING
BANDS
HANGING BANDS
LOCKING
BANDS
TWIN TO CONCENTRIC
ADAPTER
HANGING
BANDS
CONCENTRIC
TERMINATION
APPLIANCE
LOCKING
BAND
LOCKING
BAND
APPLIANCE
ADAPTER
RIGID
PIPE
FLASHING
HANGING
BAND
WALL
BRACKET
LOCKING
BANDS
RIGID
UV PIPE
CENTERING
SPACER
FLEX
PIPE
Installation into a
Masonry Chimney
Horizontal Installation of
Concentric Pipe
Summary of Contents for Polyflue BH
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