Mendota FV36 - Exterior Vent Locations and Restrictions

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FV36 85-03-01014
Exterior Vent Locations and Restrictions
ALL MEASUREMENTS FROM CENTERLINE OF VENT CAP
 - Vent Terminal
 - Air Supply Inlet
 - Area Where Terminal Is Not Permitted
A =
Clearance above grade, veranda, porch, deck, or
balcony (*12” (30cm) minimum). Vinyl surfaces require
24” minimum.
H =
*Not to be installed above a meter/regulator assembly
within 3’ (90cm) horizontally from the center line of the
regulator
B =
Clearance to window or door that may be opened
(*12” (30cm) minimum.
I =
*Clearance to service regulator vent outlet *3’ (92cm)
minimum.
C =
*Clearance to permanently closed window (minimum
12” (30cm) recommended to prevent condensation on
window)
J =
*Clearance to non-mechanical air supply inlet to building
or the combustion air inlet to any other fireplace.
12” (30cm) minimum.
D =
*Vertical clearance to ventilated soffit located above
the terminal from the center-line of the terminal 24”
(60cm) minimum.
K =
*Clearance to a mechanical air supply inlet 6’ (1.8m)
minimum
E =
*Clearance to unventilated soffit 24” min (60cm)
minimum.
L =
† Clearance above paved side-walk or a paved driveway
located on public property (*7’ (2.1m) minimum).
F =
Clearance to outside corner – 7” (18cm).
M =
Clearance under veranda, porch, deck, or balcony (*12”
(30cm) minimum‡).
G =
Clearance to inside corner – 12” (30 cm). Vinyl surfaces
require 24” min (60cm).
N=
Minimum 24” horizontal clearance to any surface, such as
an exterior surface, for vertical terminations.
† 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 veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.
* As specified in CGA B1:19 Installation Codes (1991).
Note: Local codes or regulations may require different clearances.
Exterior Vent