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 oor.
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 soft located within a horizontal distance to 24 inches from centerline
of termination
22 inches 22 inches
G clearance to unventilated soft 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
