Wood Burning Stove Flue Height Above Flat Roof

What is the minimum chimney height up through a flat roof near two windows.

Wood burning stove flue height above flat roof.

Chimney height may need to be increased by 2 3 per 1000 feet of elevation although added height generally equates to stronger draft there is a point where the system can become too long and over drafting might occur causing increased fuel consumption hotter burn temperatures and damage to your appliance. 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. Gas flue blocks have been specifically designed for use with gas effect fires. They are of the same modular size as a masonry building block and are usually designed so that.

The roof is in front of two 1st floor windows thanks paula moss 10 2 12. 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. 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. The minimum chimney heights above roof are in the article above.

If the flue exits the roof further down then it must extend high enough to acheive 2 3m of horizontal clearance. The distance between the cowl of the flue and the adjacent roof wall structure should be higher than 2 3 mtr. If the pipe is farther than 10 feet from the roof. How high does the flue have to go.

The concrete blocks have an integral narrow rectangular flue way. 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. 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. Now for the math lesson.