Installation / Operation Instruction Manual

17
Horizontal Installation
In a horizontal application, it is important that moisture is not to be allowed to buildup in the intake vent pipe. To
prevent this from happening, the pipe should be installed with a slight downward slope so the moisture will run
back away from the water heater. The vent system must be supported every 5 ft (1.5 m) of vertical run and
every 3 ft (.92 m) of horizontal run of vent pipe length.
CAUTION
Failure to properly support the vent piping with hangers and clamps may result in damage to the water heater
or venting system.
Figure 4 – Typical Horizontal Intake Vent System
Clearance to combustibles for all intake venting pipes and terminals
For installations in the US
0” minimum
For installations in the CANADA
Refer to vent pipe and terminal manufacturer’s
installation instructions for clearances to
combustibles
DO NOT place insulation or other materials in the required clearance spaces between the venting to
combustible material unless otherwise specified.