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Installation and Operation Manual - FW3500
ENGLISH
9.5.2 Installation Rules
Failure to install the chimney connector properly can result in house fires. The rules below are
based on those found in the CSA B365 installation code. Carefully follow these installation
instruction rules, or those enforced by the local code.
• Maximum overall length of horizontal pipe: 10’ (3 m) including elbows.
• Minimum clearance from combustible material: 18" (450 mm). The minimum clearance may be
reduced by 50%, to 9" (225 mm) if proper heat shield is installed either on the pipe or on the
combustible surface.
• The assembly should be as short and direct as possible between the stove and chimney. The use
of two 45o elbows is preferable to a single 90o elbow.
• The minimum overall height of the chimney system, measured from the stove top to the exterior
termination cap of the chimney should be at least 12’ (3.66 m). A chimney which is too short may
lack the “tunnel effect” required to obtain a proper draft.
• Maximum number of 90o elbows: 2.
• Maximum unsupported horizontal length: 3’ (1 m).
• Galvanized flue pipes must not be used because the coatings vaporize at high temperatures and
release dangerous gases. Use black painted flue pipes.
• Flue pipes must be at least 24 gauge in thickness.
• Flue pipe joints should overlap at least 1 ¼" (30 mm).
• Each joint in the assembly must be fastened with at least three screws.
• The installation must allow expansion: elbows in assemblies allow for expansion; straight assemblies
should include an inspection wrap with one end unfastened, or a telescopic section.
• Minimum upward slope towards the chimney: ¼ in/ft. (20 mm/m).
• One end of the assembly must be securely fastened to the flue collar with 3 sheet metal screws and
the other end securely fastened to the chimney.
• There must be provision for cleaning of the pipes, either through a clean out or by removal of the
pipe assembly. Removal of the assembly should not require that the stove be moved.
• The male ends of the sections must be oriented towards the appliance so that ashes and
condensation stay inside the pipe.
• A flue pipe must never pass through a combustible floor or ceiling or through an attic, roof space,
closet or concealed space. Where passage through a wall or partition of combustible construction
is desired, the installation shall conform to CAN/CSA-B365, Installation Code for Solid-Fuel-Burning
Appliances and Equipment.
• The chimney connector must be clean and in good condition.