Furnace Flue Height Above Roof

Chimney chimney flue must terminate min.

Furnace flue height above roof.

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. 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. A type b w gas vent shall terminate not less than 12 feet in. Nfpa54 12 7 2 2 802 6 2 2 type b w vents.

Run the vent pipe up through the roof and install a metal or pvc flashing collar over it. The different types of venting. Feet 1524 mm in vertical height above the highest connected appliance draft hood or flue collar. 2 higher than building withing 10.

Below are some requirements for the furnace water heater single wall vent pipe chimney warm climate. See the detailed b vent chimney rooftop clearance table below. As a rule of thumb is there a min height requirement above grade in areas with heavy snow fall. 2 above the roof.

Chimney chimney flue must terminate min. For a gas vent or type l vent this height must be 2 ft 0 61m or more. The top of the chimney should be at least two feet above anything within a ten foot radius of the chimney. Match the vent pipe to the furnace maker s recommendations either sheet metal or vinyl.

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. Height of furnace vent above grade this is an exhaust vent for a high efficiency furnace. 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. This was 14 inches on the northwest side of the home.

The top of the flue opening should be 3 ft 0 92 m above any roof surface. 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. This is for masonry chimneys.