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USSC 9
Installation
VENT TERMINATION CLEARANCES:
A ----- Minimum 4-foot clearance below or beside any door or window that opens.
B ----- Minimum 1-foot clearance above any door or window that opens.
C ----- Minimum 3-foot clearance from any adjacent building.
D ----- Minimum 7-foot clearance from any grade when adjacent to public walkways.
E ----- Minimum 2-foot clearance above any grass, plants, or other combustible materials.
F ----- Minimum 3-foot clearance from a forced air intake of any appliance.
G ----- Minimum 2-foot clearance below eaves or overhang.
H ----- Minimum 1-foot clearance horizontally from combustible wall.
I ------ Must be a minimum of 36-inches above the roof and 24-inches above the highest point of the roof within 10-feet.
VENT TERMINATION CLEARANCES