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Rangehood installation: what ducting/venting solution?

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  1. 2nd Nov 2016, 07:23 PM #1
    FiNaR76
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    Default Rangehood installation: what ducting/venting solution?

    Hello,
    I am planning to install a canopy range-hood which requires a ducting kit and venting the “smelly food” up to the roof cavity all the way to the outside air
    The range-hood has a 150 mm diameter exit and I was wondering:

    - What is the best material/solution for ducting pipes? (rigid vs flexible, aluminium vs plastic vs???) https://www.bunnings.com.au/our-rang...on/ventilation

    - Can I reduce the exit with an adapter from 150mm to 125 mm? (this will work better for my specific situation, but I am not sure if it will generate problems to the hood/motor…

    Many thanks
    Cheers
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  2. 2nd Nov 2016, 07:51 PM #2
    David.Elliott
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    - What is the best material/solution for ducting pipes? (rigid vs flexible, aluminium vs plastic vs???) https://www.bunnings.com.au/our-rang...on/ventilation
    I use the flexible metal kit from B, complete with the flue through the roof...
    - Can I reduce the exit with an adapter from 150mm to 125 mm? (this will work better for my specific situation, but I am not sure if it will generate problems to the hood/motor…
    I'd be keen to try to get you to keep the 150mm, but reduction won't give you any grief I think...

    Many thanks
    Cheers
    Last edited by Uncle Bob; 3rd Nov 2016 at 09:56 AM. Reason: fixed fomatting
    And.....your point is.....what exactly?
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  3. 3rd Nov 2016, 09:20 AM #3
    Saltypete
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    Reducing the exit to 125mm will effectively give you that size vent pipe. Would avoid it if I could.... If you wanted lower capacity venting you could have saved money on a lower spec range hood. You probably won't notice a great difference though...
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  4. 3rd Nov 2016, 06:05 PM #4
    OBBob
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    Might be noisier and harder on the fan.
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  5. 3rd Nov 2016, 06:32 PM #5
    FiNaR76
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    thanks all, I guess I will stay with the 150mm..... what about the "material"? aluminium rigid, flexible??? other options??

    Cheers
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  6. 3rd Nov 2016, 06:46 PM #6
    OBBob
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    Default Rangehood installation: what ducting/venting solution?

    Quote Originally Posted by FiNaR76 View Post
    thanks all, I guess I will stay with the 150mm..... what about the "material"? aluminium rigid, flexible??? other options??

    Cheers
    Ridgid is better airflow-wise but harder to install it you have some obstacles to work around.
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  7. 8th Nov 2016, 02:32 PM #7
    Pitto
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    yes, pretty much what i would say, the aluminium one is painfull to work with, but works well.
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