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OLD 6" FLUE FOR EX GAS FIRE - CAN I CONNECT EXTRACTOR FAN INTO IT?

  • 26-05-2011 1:36pm
    #1
    david4791
    Registered Users, Registered Users 2 Posts: 373 ✭✭


    HELLO,
    I plan to rearrange my house by putting the kitchen into the lounge and vice versa. The current lounge has a gas fire with a 6" flue rising 3 storeys and exiting the roof. Under the new kitchen design the cooker and hob will be positioned here, can I connect the extractor fan duct into this flue?. Is there any reason why this cant be done?. It would save time and effort coring a hole in the gable and feeding flexi duct out through there.


Comments

  • #2
    Joey the lips
    Registered Users, Registered Users 2 Posts: 10,262 ✭✭✭✭Joey the lips


    Good question and tbh I dont know. However i work try check with a manufacturer as sometimes for example with the flu's on gas boilers there is rules about the size of the flu and how far it can travel horizontal and vertical.


    Then although you may be using a filter I would be worried about the build up of grease in the chimney breast. It might attract birds at min or be a fire hazard in the future.


  • #3
    DoneDL
    Closed Accounts Posts: 902 ✭✭✭DoneDL


    OP I would doubt very much that this would work at all as the exhausted kitchen air would condense in the flue and I doubt if there would be sufficient force to clear the chimney.


  • #4
    Carlow52
    Closed Accounts Posts: 2,389 ✭✭✭Carlow52


    wont work for the reasons stated above already.
    http://www.engineeringtoolbox.com/

    will help with pressure drop math etc.
    The cooling/condensing is the problem, the air movement could be got over by putting something like shown here
    http://www.volko.com/turbine.htm but would not be cost effective


  • #5
    david4791
    Registered Users, Registered Users 2 Posts: 373 ✭✭david4791


    Thanks


  • #6
    Cherryglade12
    Registered Users, Registered Users 2 Posts: 5 ✭Cherryglade12


    We have a flu-less gas fire and would like to convert to a open gas fire. I was told this could be done if a "powered gas flu" was installed (we have no chimney-but the fire backs onto an external wall) but that the powered gas flu can be quiet nosey

    Anyone have one?
    Are they expensive to run?


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  • #7
    Joey the lips
    Registered Users, Registered Users 2 Posts: 10,262 ✭✭✭✭Joey the lips


    Cherryglade12 wrote: »
    We have a flu-less gas fire and would like to convert to a open gas fire. I was told this could be done if a "powered gas flu" was installed (we have no chimney-but the fire backs onto an external wall) but that the powered gas flu can be quiet nosey

    Anyone have one?
    Are they expensive to run?

    Would you not speak to the orig fire manufacturer about getting a kit.


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