To achieve the correct flue height the flue kit must be at least 4 metres in length.
Flue height above roof line australia.
The distance between the cowl of the flue and the adjacent roof wall structure should be higher than 2 3 mtr.
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.
Flat roof installation less than 5.
The top of the flue opening should be 3 ft 0 92 m above any roof surface.
1100mm above roof penetration height.
The location of the flue terminal of a balanced flue appliance room sealed appliance a fan assisted appliance or an appliance designed for outdoor installation shall comply with the figure below.
The top of the flue must be 60cm above the roofline.
Some installations may require even greater flue height to ensure adequate clearance above the roof or ridge line.
2 australian standard as nzs 2918 2001 requires a minimum flue height of 4 6 metres above the floor on which the woodheater is located.
The same standard also states that the end of the flue cannot be near any windows or doors so as to prevent expelled air from being pushed back into your home.
The top of the flue must be 60cm.
For a gas vent or type l vent this height must be 2 ft 0 61m or more.
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.
For further information contact the gas safety technical information line on 1800 652 563.
This is for masonry chimneys.
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.
A wood heater installation must meet the australian standard as2918.
How far your flue pipe must extend out of your roof depends upon a the minimum height of a flue system within 3m from the highest point of the roof shall be 600mm above that point.
Flues need to be 600mm higher than the highest part of the roof within 3 metres.
Alternatively there must be a minimum distance of 3 meters from any higher section of roof.
