The height of the chimney above the roof surface measured at the up slope side of the chimney from the roof surface to the chimney top should be at least three feet the green line in our photo.
Nyc direct vent roof clearance.
The vent system shall terminate at least 4 feet 1219 mm below 4 feet 1219 mm horizontally from or 1 foot 305 mm above any door window or gravity air inlet into the building.
Clearance above paved sidewalk or a paved driveway located on public property.
Construction such as a roof ridge parapet wall or penthouse within ten feet of the chimney outlet whether the construction.
1007 7 1 openness the exterior area for assisted rescue shall be at least 50 percent open and the open area above the guards shall be so distributed as to minimize.
72 1 8m 36 90cm 5b.
For gas fired water heater vents.
This is a bit of an odd measurement and chimney clearance case because the chimney side is actually about 8 away from the roof edge.
The clearance shall be not less than the clearance to combustibles specified by the vent manufacturer s installation instructions.
Clearance distance from gas vent termination cap to adjacent building.
Where vents pass through attic space the shield shall terminate not less than 2 inches 51 mm above the insulation materials and shall be secured in place to prevent displacement.
Direct vent integral vent and mechanical draft systems are covered in section mc 804.
3 91cm above if within 10 3m horizontally.
This construction shall extend vertically from the ground to a point 10 feet 3048 mm above the floor level of the area for assisted rescue or to the roof line whichever is lower.
For non direct vent applications that is side wall venting only the required clearance is 7 feet.
The clearance shall be not less than the clearance to combustibles specified by the vent manufacturer s installation instructions.
An exception is made for non combustible walls such as solid masonry or concrete.
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.
Factory built chimneys are covered in section mc 805.
6 minimum clearance from single wall vent pipe or flue vent connector to any combustible material.
15 10 vent connector clearance for gas fired equipment 15 11 reduced clearances for vent connectors with.
Note 5 clearance to a mechanical air supply inlet.
Where vents pass through attic space the shield shall terminate not less than 2 inches 51 mm above the insulation materials and shall be secured in place to prevent displacement.
Title 27 subchapter 15.