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Ventilation options for ducting and extractor fans

Discussion in 'Building' started by platforminc, 16 Apr 2021.

  1. platforminc

    platforminc

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    Hi All,

    I have an en-suite and a bathroom right next to each other, the nearest soffit it about 6m away, there is a rafter above the bathroom and ensuite.

    I am thinking of the following in terms of options for ventilation.

    4inch inline extractor fan

    • I have the following questions, when using an inline extractor fan, how long can the ducting be ?
    • If using a roof tile for ventilation, can I use a T to split the ducting for the bathroom and ensuite or does it have to be separate roof tiles ?

    I look forward to your reply.
     
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  3. noseall

    noseall

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    Ducting needs to be a short as possible (condensation) or vey well insulated if overly long with zero traps.

    No, each fan needs its own duct and TVT (tile vent terminal).
     
    Last edited: 16 Apr 2021
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