Monessen Hearth KHLDV SERIES User Manual

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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.  
W
ARNING
24" vertical rise required 
before horizontal run