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EDVWSPV Horizontal Power Vent System
Part No. XG1303 - 120110
Appendix A - Termination Locations
A = clearance to the termination frame above grade, veranda, porch, deck, or balcony
[30 inches (75 cm) minimum]
B = clearance to door, or sides and top of window, that may be opened [30 inches (75
cm) minimum for appliances.
C = clearance to bottom of window that may be opened horizontally [36 inches (92 cm)
minimum for appliances.
D = no clearance to permanently closed window when installed with approved glass
penetration termination
E = clearance to permanently closed window [30 inches 75 cm recommended to prevent
condensation on window]
F =
distance of [30 inches 75 cm] from the centreline of the termination [30 inches (75
cm) minimum]
G =
[30 inches (75 cm) minimum to combustibles]
H = clearance to outside corner [30 inches (75 cm) minimum]
I = clearance to inside corner [30 inches (75 cm) minimum]
J = * not to be installed above a meter/regulator assembly within
40" (103 cm) horizontally from the centreline of the regulator
K = clearance to service regulator vent outlet [3 feet minimum in the United States] [*6
feet (1.8 m) minimum in Canada]
L = clearance to non-mechanical air supply inlet to building or the combustion air inlet
to any other appliance [16 inches (41 cm) minimum for appliances
≤
100 000 BTU/H
(30kW)]
M = clearance to mechanical air supply inlet [*6 feet (1.8 m) minimum]
N =
†
clearance above paved sidewalk or a paved driveway located on public property
[*7 feet (2.1 m) minimum]
P = clearance under veranda, porch, deck, or balcony [30 inches (75 cm) minimum
‡
to
non-combustibles] [30 inches (75 cm) minimum
‡
to combustibles]
Q = clearance above a roof [24 inches (61 cm) minimum]
R = clearance to adjacent walls and neighboring buildings [30 inches (75 cm) minimum]
S = clearance from corner in recessed location [30 inches (75 cm) minimum]
T = maximum depth in recessed location [48 inches (122 cm) minimum]
U = minimum width for back wall of recessed location [60 inches (150 cm) minimum]
V = [30 inches (75 cm) minimum] horizontal clearance between the frames of two
terminations that are level.
W = horizontal clearance between the frames of two terminations that are not level. [30
inches (75 cm) 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 has an open side that is equal
to or greater than the depth of the enclosed area
*
require different clearance.
