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VENT AND FIREPLACE SIZE
*Flare-RD-45 is shipped with 5x8 vent. All other Flare 45 are shipped with the 4x6 vent
MINIMUM COMBUSTIBLE CLEARANCES FROM VENT
•
HORIZONTAL VENT CLEARANCES: A minimum clearance of 3 inches (76mm) to the top and 1 inch (51mm) to the sides and
bottom of the vent pipe on all horizontal runs to combustibles is required.
•
VERTICAL VENT CLEARANCES: A minimum of 1 inch (25mm) all around the vent pipe on all vertical runs to combustibles is
required except for clearances in appliance enclosures.
•
Horizontal vents have a minimum 1/4 inch (6mm) rise per 1 foot towards the termination.
•
When penetrating through combustible walls and ceilings, frame a minimum of 10.5 in x 10.5 in opening and ensure that
the insulation is kept clear of the vent pipe using either a wall thimble or an attic insulation shield. use the DuraVent
framing cutout dimension table based on your selected part.
33 |
P a g e
Size
Flare 30
Flare 45*
Flare 50
Flare 60
Flare 70
Flare 80
Flare 100
Frame cutout table taken from the DuraVent or ICC installation manual
Vent Size
4x6
5x8 or 4x6 *
5x8
5x8
5x8
5x8
5x8
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