Direct Vent Pipe Clearance

Vent pipe clearances the following clearances apply to all pipe used with an ortal appliance regardless of which pipe manufacturer is used.

Direct vent pipe clearance. Direct vent chimney systems are specialized. For venting direct vent gas appliances listed or certified for use with amerivent direct vent. Maintain 1 clearance to combustibles on bottom. Nominal 4 id x 6 5 8 od and nominal 5 id x 8 od.

The vent terminal shall be at least 12 inches below 12 inches horizontally from or 12 inches above any door window or gravity air inlet into a building. Because the outer wall of b vent doesn t get all that hot code requires only 1 in. Distance from the exhaust vent at the exterior wall to building features such as gas meter outlet windows doors balconies building corners clearance over a driveway or paved sidwewalk. Direct vent terminal clearance distances.

A larger and more complete illustration and table of clearance distances is at gas appliance direct vent clearances live link given just above. For non direct vent applications that is side wall venting only the required clearance is 7 feet. Of clearance between it and combustibles. 36 travis 2016 clearance to each side of center line extended above the gas meter regulator assembly.

In an attempt to maximize finished floor space when boxing off the water heater from the rest of the room people often don t leave enough clearance between the new wall framing and the vent pipes. Maintain 3 clearance to combustibles on top. Clearance distance from gas vent termination cap to any mechanical air supply inlet. The general rule of thumb however is a 1 inch clearance all the way around for vertical vent runs.

And if running the pipe horizontally it must maintain a 3 inch clearance for the top half of the pipe and a 1 inch clearance for the bottom half of the pipe. Maintain 1 clearance to combustibles on entire circumference. In direct vent applications this clearance distance must be in compliance with local building codes the requirements of the fuel gas supplier for the heating appliance in use and the appliance manufacturer s instructions. For a gas fireplace exhaust termination cap 3 feet 91cm above if within 10 feet 3m horizontally.

48 travis 2016 clearance to the side of any non mechanical supply air inlet. Single wall vents get very hot requiring a 6 in.