Instructions / Assembly

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9. The air space clearance between the masonry chimney exterior and combustible materials should be
checked to verify that the chimney is in accordance with the clearance specifications contained in the
NFPA 211 Standard or other recognized major building codes, i.e., on an exterior chimney,
clearance is 1’’ while on an interior chimney, clearance is 2’’.
10. The “SF” Liner is intended for installation into masonry chimneys that are used for the natural draft
venting of gas-liquid-, and solid-fuel-fired residential-type appliances in which the maximum
continuous flue-gas outlet temperatures do not exceed 1000° F (538° C). The following list details
only some intended uses of “SF” chimney liner. If your appliance is not on this list and you are not
sure if it is appropriate to use with “SF” liner, contact the appliance manufacturer prior to
installation.
• Furnace • Boiler • Water Heater • Burner • Fireplaces / Inserts
• Ranges • Wood Stove • Pellet Stoves • Clothes Dryer
11. The recommended minimum air space clearance between
the “SF”
Liner and the chimney wall are 1” (in accordance with major recognized standards). Joining
of two parts such as two liners should be done using a “C” Connect.
11. Minimum and Maximum Clearances.
LINER DIAMETER (IN) MINIMUM CHIMNEY DIMENSIONS
3 6 X 6
4 7 X 7
5 8 X 8
6 9 X 9
7 10 X 10
8 11 X 11
9 12 X 12
Maximum Chimney Height = 65 Feet High
Minimum Chimney Height = 10 Feet High
Minimum Brick Thickness = 3 ½ Inches Thick.