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Vent Clearances
The following clearances apply to the vent system regardless of vent manufacturer.
Vent Clearances
Sides: 1 inch
Applies to entire circumference when venting is oriented
vertically
.
*
Top: 3 inches
Applies to venting with any amount of
horizontal
aspect.
Bottom: 1 inch
Applies to venting with any amount of
horizontal
aspect.
*Exception:
Wall thimble top clearance to any material is
1 inch.