PVVEX58-300 & PVVEX510-300 Horizontal Power Vent
Page 10
XG0518 - 070714
* Based on CGA B149.1 Natural Gas and Propane installation code. Local codes may vary, please check with local regulatory agency.
** Based on ANSI Z223.1/NFPA 54 National Fuel Gas Code. Local codes may vary, please check with local regulatory agency.
+ A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serve both dwellings.
++ Only permitted if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.
V
Vertical Detail
Horizontal
Detail
Location
Canada*
USA**
A
clearance to the termination frame above grade, veranda, porch, deck, or balcony
30 inches
30 inches
B
clearance to top of doors or operable windows
12 inches
12 inches
C
clearance to sides or bottom of door or operable windows
4 feet
4 feet
D
clearance to permanently closed window when installed with approved glass penetration termination
0
0
E
clearance to permanently closed window Recommended to prevent condensation
30 inches
30 inches
F
clearance to ventilated soffit located within a horizontal distance to 24 inches from centerline
of termination
22 inches
22 inches
G
clearance to unventilated soffit
30 inches
30 inches
H
clearance to outside corner
30 inches
30 inches
I
clearance to inside corner
30 inches
30 inches
J
clearance to each side of the vertical centerline of a metre or regulatory assembly to a maximum
vertical distance of 15ft
3 feet
3 feet
K
clearance to service regulator vent outlet
3 feet
3 feet
L
clearance to non mechanical air supply inlet to the building or combustion air inlet to other
appliance for appliance <= 100.000 BTU/H (30 KW)
12 inches
4 feet
L
clearance to non mechanical air supply inlet to the building or combustion air inlet to other
appliance for appliance > 100.000 BTU/H (30 KW)
6 feet
4 feet
M
clearance to forced air supply inlet
6 feet
3 feet above air inlet
N+
clearance above paved sidewalk or paved driveway located on public property
7 feet
7 feet
P++
clearance under veranda, porch, deck, or balcony
30 inches
30 inches
Q
clearance above roof
See Fireplace Installation Guide
See Fireplace Installation Guide
R
clearance to adjacent walls and neighboring buildings
See Fireplace Installation Guide
See Fireplace Installation Guide
S
clearance from corner in recessed location
30 inches
30 inches
T
Maximum depth of recessed location
48 inches
48 inches
U
Maximum width for back wall of recessed location
60 inches
60 inches
V
Horizontal clearance between two terminations that are level
See Fireplace Installation Guide
See Fireplace Installation Guide
W
Horizontal clearance (centre to centre) between two terminations that are not level
30 inches
30 inches
Power Vent Locations
Installation
