Flue Height Above Roof Line Australia
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.
Flue height above roof line australia. 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. To achieve the correct flue height the flue kit must be at least 4 metres in length. So 28 inches plus 24 inches is a chimney height of only 52 inches. Homes built on varying terrain have their own set of chimney and flue regulations.
Australian standard as nzs 2918 2001 requires a minimum flue height of 4 6 metres above the floor on which the wood heater is located. 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. The distance between the cowl of the flue and the adjacent roof wall structure should be higher than 2 3 mtr.
This is for masonry chimneys. Flues that are more than 3 metres away from the highest part of the roof need to be 1000mm above the flue penetration. Some installations may require even greater flue height to ensure adequate clearance above the roof or ridge line. A wood heater installation must meet the australian standard as2918.
Please note that this rule doesn t generally apply to pellet and gas vent systems. For further information contact the gas safety technical information line on 1800 652 563. 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. Per the 10 and 2 rule once you are at the level of the peak you only need to be 2 feet above it.
For a gas vent or type l vent this height must be 2 ft 0 61m or more. The top of the flue opening should be 3 ft 0 92 m above any roof surface. 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.