State Industries Residential Gas Water Heater instruction manual Vertical Vent Through Roof

This unit can vent through 2", 3" or 4" nonmetallic pipe and fittings.

The vent pipe installation can be started from either the blower discharge or the termination wall. Keep in mind the total vent system (pipe and elbows) when installing the vent system, see VENTING AND INSTALLATION, pages 14 - 16.

FIGURE17.

The vent terminal should be kept as close as possible to the outside wall, but you need to allow at least 1.5" (3.8 cm) of pipe past the wall, for the wall flange and vent terminal to mount on the pipe.

Before the vent terminal is installed, caulk (not supplied) around the pipe on the exterior wall and install the optional wall flange. The flange can be held to the outside wall by placing some of the caulking on the back of the flange. The wall flange is supplied for decorative purposes only and is not a requirement for the vent termination (if not needed by the installer).

VERTICAL VENT THROUGH ROOF

This unit is approved for venting through the roof with the type vent terminal that is included with the unit. A proper flashing or “BOOT” should be used to seal the pipe where it exits the roof.

The total vent system should not exceed that which is specified, see VENTINGAND INSTALLATION, pages 14 - 16.

All of the pipe should be secured as per the instructions in the instructions

VERTICAL VENT TERMINATION RESTRICTIONS

1.Minimum of twelve 12" (30.5 cm) above the roof or twelve 12" (30.5 cm) above the anticipated snow level. Provide proper support for all pipe protruding through the roof.

FIGURE18.

2.4' (1.2 m) from or 1' (0.3 m) above any gable, dormer, or other roof structure with access to interior of building (i.e.-vent, window etc.).