VENT TERMINAL CLEARANCES
A= Clearance above grade, verandah, porch, deck,
or [balcony (*12 inches (30cm) minimum]
B= Clearance to window or door that may be opened
| [*12 inches (30cm) minimum] |
C= Clearance to permanently closed window | |
| [minimum 12 inches (30cm) recommended |
to | prevent condensation on window] |
D= Vertical clearance to ventilated soffit located | |
| above the terminal within a horizontal |
| distance of 2 feet (60cm) from the center- |
line | of the terminal 24 inches ( 60cm) minimum |
E= Clearance to unventilated soffit [18 inches (45cm) minimum]
F= Clearance to outside corner [12 inches minimum] G= Clearance to inside corner [`12 inches minimum]
H= *Not to be installed above a meter/regulator assembly within 3 feet (90cm) horizontally from the
I= Clearance to service regulator vent outlet [*6 feet (1.8m) minimum]
J= Clearance to
K= Clearance to a mechanical air supply inlet [*6 feet (1.8m) minimum]
L= *** Clearance above paved
[*7 feet (2.1m) minimum]
M= Clearance under verandah, porch, deck, or balcony [*24 inches (60cm) minimum **]
***A vent shall not terminate directly above a sidewalk or paved driveway, which is located between two single family dwellings and serves both dwellings.
**Only permitted if verandah, porch, deck, or balcony, is fully open on a minimum of 2 sides beneath the floor
•As specified in CGA B149 Installation Codes (1991) Note: Local Codes or Regulations may require different clearances
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