Flue Height Above Roof Line Australia

To achieve the correct flue height the flue kit must be at least 4 metres in length.

Flue height above roof line australia.

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. Homes built on varying terrain have their own set of chimney and flue regulations. This reduces the actual required height by 12 inches from our previous calculation of 64 inches. 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 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. For a gas vent or type l vent this height must be 2 ft 0 61m or more. Flues that are more than 3 metres away from the highest part of the roof need to be 1000mm above the flue penetration. 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.

This is for masonry chimneys. Flues need to be 600mm higher than the highest part of the roof within 3 metres. 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.

The distance between the cowl of the flue and the adjacent roof wall structure should be higher than 2 3 mtr. 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. The top of the flue opening should be 3 ft 0 92 m above any roof surface. So 28 inches plus 24 inches is a chimney height of only 52 inches.

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 further information contact the gas safety technical information line on 1800 652 563. 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.