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73D0024 13
VENT INSTALLATION
Figure 7 - Combustible Clearances for Vent Pipe
A minimum of 3" clearance to the top is
required along horizontal length until fl ue
pipe penetrates outside wall.
A minimum 1"
clearance to
combustibles
permitted all
around fl ue at
outside wall
Horizontal sections of this vent system require a minimum of 3" clearances to combustibles
at the top of the fl ue and 1" clearance at the sides and bottom until the fl ue penetrates
the outside wall. A minimum 1" clearance all around the fl ue is acceptable at this point
of penetration.
Vertical sections of this vent system require a minimum of 2" clearance to combustibles
at the top of the unit directly above the stand-off. A minimum of 1" clearance all around
the fl ue is acceptable thereafter.
WARNING
24" vertical rise required
before horizontal run