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Gas Fire Ventilation

  • 04-11-2014 8:15pm
    #1
    oppenheimer1
    Closed Accounts Posts: 6,084 ✭✭✭


    I have in the house what appears to be a 2.5kW gas fire, and for ventilation we have a 100mm dia hole in the wall to the outside. The problem I have is this vent. It was poorly sited and faces the prevailing winds and I would like to change it. Despite being well insulated, the room is freezing most of the time and the central heating cannot warm it. Last year as an experiment I fully disconnected the fire and closed over the vent with a sheet of paper and the difference was immediate - the room warmed with the heating!

    I'd like to put the gas back into action this winter, however this means the vent will need attention. I know the fire will need a certain minimum ventilation for both combustion and cooling which I have from the regulations IS 813:2014. I'm proposing to use a 120mm vent with a baffle inside and a cowl over the outside to help with the draughts. I will maintain the same opening as is currently present.

    What I'm wondering is if this will have an effect on the draw in the chimney and will I need to get the flue retested for smoke and spillage?


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