Furnace Flue Height Above Roof

2 above the roof.

Furnace flue height above roof.

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. As a rule of thumb is there a min height requirement above grade in areas with heavy snow fall. For a gas vent or type l vent this height must be 2 ft 0 61m or more.

Except for flat and very low slope roofs such as those listed in the table below b vents should be at least two feet above the roof surface as well. 11 12 to 12 12 4 0 feet above the roof surface continues to 21 12 pitch at 8 0 feet vent caps larger than 12 must be located at least 2 feet above the highest point and 2 feet higher than any portion of the building within a horizontal distance of 10 feet. 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. Chimney chimney flue must terminate min.

Nfpa54 12 7 2 2 802 6 2 2 type b w vents. This was 14 inches on the northwest side of the home. Run the vent pipe up through the roof and install a metal or pvc flashing collar over it. The top of the flue opening should be 3 ft 0 92 m above any roof surface.

Match the vent pipe to the furnace maker s recommendations either sheet metal or vinyl. 2 higher than building withing 10. Height of furnace vent above grade this is an exhaust vent for a high efficiency furnace. 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.

See the detailed b vent chimney rooftop clearance table below. A type b w gas vent shall terminate not less than 12 feet in. 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. Well making sure that you choose the right venting style will protect them.

This is for masonry chimneys. Feet 1524 mm in vertical height above the highest connected appliance draft hood or flue collar. Chimney chimney flue must terminate min.