Wood Burning Stove Flue Height Above Roof

This means that below 38 degree roof pitches that the height of the flue outlet should be at least 1800mm above the roof when not close to the ridge and above 38 degree roof pitches the flue outlet height should be 2300mm horizontally back to the roof flue height figures are given in the table above where the flue is not close to the ridge.

Wood burning stove flue height above roof.

Chimney height is one of the critical factors affecting the performance of your wood stove and whether your wood stove installation is safe. The top of the flue opening should be 3 ft 0 92 m above any roof surface. If the flue exits the roof further down then it must extend high enough to acheive 2 3m of horizontal clearance. If the pipe is farther than 10 feet from the roof peak it must be 2.

When installing a new twinwall flue system if the flue exits the roof within 600mm horizontally from the ridge high point of the roof then the flue must extend a minimum of 600mm above the ridge. This is for masonry chimneys. 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. 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.