Monessen Hearth HBDV400 User Manual

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VENT INSTALLATION 
Figure 7 - Combustible Clearances for Vent Pipe 
W
ARNING
WARNING
This fireplace must be vented to the outside. The venting system must NEVER be 
attached to a chimney serving a separate solid fuel burning appliance. Each gas 
appliance must use a separate vent system. Do not use common vent systems. 
WARNING
Horizontal sections of this vent system require a minimum of 3" clearances to 
combustibles at the top of the flue and 1" clearance at the sides and bottom until 
the flue penetrates the outside wall. A minimum 1" clearance all around the flue 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.  
A Minimum of 3" Clearance 
to the Top Is Required Along 
Horizontal Length until Flue 
Pipe Penetrates Outside Wall. 
A Minimum 1" Clearance to 
Combustibles Permitted All 
Around Flue at Outside Wall