36 travis 2016 clearance to each side of center line extended above the gas meter regulator assembly.
Direct vent pipe clearance.
Maintain 1 clearance to combustibles on bottom.
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.
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.
Direct vent terminal clearance distances.
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.
48 travis 2016 clearance to the side of any non mechanical supply air inlet.
Clearance distance from gas vent termination cap to any mechanical air supply inlet.
Because the outer wall of b vent doesn t get all that hot code requires only 1 in.
Of clearance between it and combustibles.
Nominal 4 id x 6 5 8 od and nominal 5 id x 8 od.
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.
Vent pipe clearances the following clearances apply to all pipe used with an ortal appliance regardless of which pipe manufacturer is used.
Available pipe sizes lengths.
The general rule of thumb however is a 1 inch clearance all the way around for vertical vent runs.
For a gas fireplace exhaust termination cap 3 feet 91cm above if within 10 feet 3m horizontally.
Single wall vents get very hot requiring a 6 in.
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.
If you are using a b vent typically a double walled air insulated vent for gas appliances typically you ll see a fire clearance stamped right into the metal of the chimney stating 1 inch minimum clearance to combustibles as you ll see in this photo.
For information on venting gas appliances having draft hoods and other appliances listed to be used with type b gas vent request our type b gas vent.
Maintain 3 clearance to combustibles on top.
Direct vent chimney systems are specialized.
