Operating instructions

6
D. Solid insulated, listed factory-build chimney length with
an inside diameter 2 inch larger than the chimney
connector and having 1 inch or more of insulation,
serving as a pass-thru for a single wall sheet steel
chimney connector of minimum 24 gauge thickness,
with a minimum 2 inch air space between the outer wall
of chimney section and combustibles. Minimum length
of chimney section shall be 12 inch chimney section
spaced 1 inch away from connector using sheet steel
support plates on both ends of chimney section.
Opening shall be covered, and chimney section
supported on both sides with sheet steel supports
securely fastened to wall surfaces of minimum 24 gauge
thickness. Fasteners used to secure chimney section
shall not penetrate chimney flue liner
Typical Factory Built or Masonry Chimney
Installations
.