Installation Guide

PG 17
3. Determine how much AF-HST chimney will be extending into the room (minimum
of 3” below the finished ceiling). Be sure to maintain the proper clearance to
combustibles (walls and ceilings) for the connector pipe. Once you have
identified the proper height for your installation, attach the Roof Support Band to
the Chimney Section by tightening the bolt and secure it with supplied hardware.
4. Attach desired length of Chimney Sections above and below the roof level (max.
Of 45’ total, 20’ max below the support) (Fig 17).
5. Refer to Steps 9 & 10 in the Ceiling Supported Installation section (page 10 & 11)
to complete the Roof Supported installation.
An Alternative Installation Location for the Roof Support Bracket: The Roof
Support Bracket may be used at the bottom of a chimney installation (Fig 18). This may
be useful for some basement installations. Maintain a minimum of 2” clearance to
combustibles at all times. The AF-HST chimney needs to extend a minimum of 3”
below the finished ceiling or exposed framing members. Please note that you cannot
extend the chimney all the way to the appliance - you must have a stove pipe adaptor
and connector pipe at some point of the installation to attach to the collar of your
appliance.
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