Table of Contents
Advertisement
3.4 Vent Terminal Locations
A = clearances above grade, veranda, porch, deck, or balcony [* 12" (30cm) minimum]
B = clearance to window or door that may be opened [* 12" (30cm) minimum]
C = clearance to permanently closed window [minimum 12" (30cm) recommended to prevent condensation on window]
D = vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2' (60cm) from the centre-line of
the terminal [36" (cm) minimum]
E = clearance to un-ventilated soffit [36" (90 cm) minimum]
F = clearance to outside corner = 36"
G = clearance to inside corner = 36"
H = * not to be installed above a meter/regulator assembly within 3' (90cm) horizontally from the centre-line of the regulator
I = clearance to service regulator vent outlet [* 6' (1.8 m) minimum]
J = clearance to non-mechanical air supply inlet to building or the combustion air inlet to any other appliance [* 12" (30cm)
minimum]
K = clearance to a mechanical air supply inlet [* 6' (1.8m) minimum]
L = † clearance above paved side-walk or a paved driveway located on public property [* 7' (2.1m) minimum]
M = clearance under veranda, porch, deck, or balcony [* 12" (30cm) 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 veranda, porch, deck, or balcony is fully open on a minimum of 2 sides beneath the floor*
*
As specified in CGA B149 Installation Code (1991) NOTE: local codes or regulations may require different clearances
•
Follow ANSI Z223.1 for U.S.A
V = Vent Termination
A = Air Supply Inlet
Figure 3.8 - Vent Terminal Locations
/12
Advertisement
Table of Contents
