14
VENTING
HORIZONTAL VENT SYSTEM CLEARANCES
TOP
BOTTOM
SIDES
ALL APPROVED VENTING
3 inches (76mm)
1 inch (25mm)
1 inch (25mm)
HORIZONTAL TERMINATIONS
MINIMUM: 45° elbow + 6” (152mm) hori termination cap.
MAXIMUM: U.S. Installations: 45° elbow + 10ft. (3.05m) + termination cap.
Canadian Installations: 0-2000ft. (0-607m): 45
˚
elbow + 10ft. (3.05m) + termination cap.
2000-4500ft. ( 607-1372m): 45
˚
elbow + 10ft. (3.05m) + termination cap. Must de-rate burner orifices: Nat. Gas: #56 & #35
L.P. Gas: #69 & #52
IMPORTANT
The horizontal vent heat shield must be installed when using a 45-degree elbow to horizontally position the vent system.
Exception: corner installations
Kozy Heat Wall Pass-thru, #800-WPT (4-1/2” (114mm) - 6-1/2” (165mm) wall thickness) or #800-WPT2 (6-1/2” (165mm) - 12-
1/2” (318mm) wall thickness), must be used on all horizontal vent runs.
NOTE
Horizontal sections require 1/4” (6mm) rise for every 12” (305mm) of travel.
Vent Opening Dimensions for corner installations:
Refer to vent pipe manufacturer's instructions.
90° Elbow
Pipe
45° Elbow
Termination Cap
Minimum: 6” (152mm)
Maximum: 10ft. (3.05m)
45° Elbow
Horizontal Vent Heat Shield
Termination Cap
Figure 14b
Figure 14a
TYPICAL CORNER INSTALLATION
TYPICAL HORIZONTAL INSTALLATION