Flue Height Above Roof Line

So take the top number of your roof pitch and multiply it by 10 then add 24 note example 1.

Flue height above roof line. If the pipe is farther than 10 feet from the roof peak it must be 2. The minimum chimney height recommended for minimum performance of wood burning and multi fuel appliances is 4 5 m from the top of the appliance to the top of the chimney. Degrees the height of flue or chimney stack will need to be at least 1800mm above the roof when not close to the ridge. If the pitch of the roof is 38 degrees or greater the termination point of the flue or chimney will need to be 2300mm horizontally from the roof line and roofing material.

This is for masonry chimneys. The distance between the cowl of the flue and the adjacent roof wall structure should be higher than 2 3 mtr. For a gas vent or type l vent this height must be 2 ft 0 61m or more. 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 the flue opening should be 3 ft 0 92 m above any roof surface. Homes built on varying terrain have their own set of chimney and flue regulations. 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. Flues that are more than 3 metres away from the highest part of the roof need to be 1000mm above the flue penetration.

Additionally per our rule we need to add 2 feet or 24 inches giving us a total height of 64 inches.