A vertical line drawn along the up roof side of the chimney from the roof surface to the top of the chimney flue opening shall be at least 3 ft in height.
Furnace flue height above roof.
See the detailed b vent chimney rooftop clearance table below.
Feet 1524 mm in vertical height above the highest connected appliance draft hood or flue collar.
2 above the roof.
Chimney chimney flue must terminate min.
Match the vent pipe to the furnace maker s recommendations either sheet metal or vinyl.
When we are talking about gas furnace vent pipe code we need to talk about the different types of the vents first after all you want to keep your family safe from harm.
Height of furnace vent above grade this is an exhaust vent for a high efficiency furnace.
Nfpa54 12 7 2 2 802 6 2 2 type b w vents.
Chimney chimney flue must terminate min.
This was 14 inches on the northwest side of the home.
If the pipe is farther than 10 feet from the roof peak it must be 2.
A type b w gas vent shall terminate not less than 12 feet in.
As a rule of thumb is there a min height requirement above grade in areas with heavy snow fall.
2 higher than building withing 10.
For a gas vent or type l vent this height must be 2 ft 0 61m or more.
The top of the flue opening should be 3 ft 0 92 m above any roof surface.
This is for masonry chimneys.
The different types of venting.
Most wood stove and factory built fireplace manufacturers and local building codes will require that the chimney must extend at least 2 feet above any portion of any structure within 10 feet measured horizontally and must extend at least 3 feet above the highest point of its roof penetration.
Well making sure that you choose the right venting style will protect them.
Run the vent pipe up through the roof and install a metal or pvc flashing collar over it.
The top of a chimney pipe must extend at least 2 feet above the peak of the roof if the pipe is within 10 feet of the peak.
The top of the chimney should be at least two feet above anything within a ten foot radius of the chimney.