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Kitchen in-line extractor fan.

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Is there a 4 inch in-line extractor fan suitable for over a kitchen cooker, so that the fan unit is outside the kitchen and just a grille on the wall?


Edit. Add. I can't see any through inline filters suitable for 4 inch ducting online, just end fitting types used for hydroponics. Any ideas please?


Z.
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    Yes there are lots that are fine. Something like a UMD100 pro or most manufacturers do one that's suitable.
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    Check the extract rates though - kitchens tend to have at least 5' fans.

       - Andy.
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    What type of kitchen cooker?


    Electric, gas, oil or solid fuel?
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    Nick Bennett:

    Yes there are lots that are fine. Something like a UMD100 pro or most manufacturers do one that's suitable.


    I am concerned about the build up of grease and crud inside the fan, as no filters are installed with basic inline fans as you would find in a cooker hood.


    Z.


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    Sparkingchip:

    What type of kitchen cooker?


    Electric, gas, oil or solid fuel?


    Small 4 ring, grille and oven electric.


    Z.


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    You can get inline filters as well. Though not as easy for the home owner to access for cleaning. I would imagine it would become cost prohibitive at that point too.
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    Nick Bennett:

    You can get inline filters as well. Though not as easy for the home owner to access for cleaning. I would imagine it would become cost prohibitive at that point too.


    Thanks. The ducting from the kitchen exits through a garage, so access to an in line filter before the fan will be easy.


    Z.


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    Just be aware that a filter (even a clean one) will restrict the airflow significantly (along with the ducting and especially bends in the ducting) - I guess you'd be looking at achieving at least 30 litres/sec to comply with building regs (double that if it's not adjacent to the hob).

       - Andy.
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    Perhaps a greased up, stalled fan in a brick wall, is not as much of risk as in a residential caravan; I was on the same site and remember 4 contractors from Beloit Walmsley in the U.K, they were in South Africa and all burned to death early one Sunday morning; they were on a contract for a new paper mill for Sappi. A fan in the kitchen, started a fire which spread very quickly. They were all "frozen" in position on the edge of their beds and the caravan was a burnt out shell..

    There should be an overheating/staled sensor in these fans with a working fire alarm- (mandatory but just for rented, domestic properties). 

    Jaymack .
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    Jaymack:

    Perhaps a greased up, stalled fan in a brick wall, is not as much of risk as in a residential caravan; I was on the same site and remember 4 contractors from Beloit Walmsley in the U.K, they were in South Africa and all burned to death early one Sunday morning; they were on a contract for a new paper mill for Sappi. A fan in the kitchen, started a fire which spread very quickly. They were all "frozen" in position on the edge of their beds and the caravan was a burnt out shell..

    There should be an overheating/staled sensor in these fans with a working fire alarm- (mandatory but just for rented, domestic properties). 

    Jaymack .  


    I tend to use Manrose fans as they are good quality. I hope that they contain a thermal cutout in the windings.


    The kitchen has a heat alarm, the other rooms smoke alarms......all interlinked.

    MF100S – MixFlo – 100mm commercial induct fan | Manrose


    Z.


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