Monessen Hearth Direct Vent BLDV400 - Manual (Page 13)

74D0009 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
1" clearance to combustibles on all sides of the pipe.
W
ARNING
12" vertical rise required
before horizontal run