29
US
INSTALLATION
Method C:
6” (152.4 mm) Clearance to Combustible Wall Member: Starting with a minimum 24
gage (.024” [.61 mm]) 6” (152.4 mm) metal chimney connector, and a minimum 24 gage
ventilated wall thimble which has two air channels of 1” (25.4 mm) each, construct a
wall pass-through. There shall be a minimum 6” (152.4) mm separation area containing
fiberglass insulation, from the outer surface of the wall thimble to wall combustibles.
Support the wall thimble and cover its opening with a 24-gage minimum sheet metal
support. Maintain the 6” (152.4 mm) space. There should also be a support sized to fit
and hold the metal chimney connector. See that the supports are fastened securely to
wall surfaces on all sides. Make sure fasteners used to secure the metal chimney con-
nector do not penetrate chimney flue liner.
Method D:
2” (50.8 mm) Clearance to Combustible Wall Member: Start with a solid-pak listed fac-
tory built chimney section at least 12” (304 mm) long, with insulation of 1” (25.4 mm)
or more, and an inside diameter of 8” (2 inches [51 mm] larger than the 6” [152.4 mm]
chimney connector). Use this as a pass-through for a minimum 24-gauge single wall
steel chimney connector. Keep solid-pak section concentric with and spaced 1” (25.4
mm) off the chimney connector by way of sheet metal support plates at both ends of
chimney section. Cover opening with and support chimney section on both sides with
24 gage minimum sheet metal supports. See that he supports are fastened securely to
wall surfaces on all sides. Make sure fasteners used to secure chimney flue line.
INSTALLATION
