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Domus Megaduct 220x90mm Double Airbrick
SKU: DOM905 QS Code: QS3087 
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| Colour | White |
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| View All Technical Details | |
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Questions and answers of the customers
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Is there a draught stopper I can fit in this vent without major surgery to the ducting?
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QIs there a draught stopper I can fit in this vent without major surgery to the ducting?answer nowA
Hi Pete,
Thank you for your question,
Please enter the search code QS3068 into our website to view the product. You would need a piece of 220x90 ducting to be fitted on the other end of the shutter so that it is sandwiched in between the ducting, if you look the product items images on our website it shows how it is placed.
What is free flow area of this item, is it equivalent to 6 dia hole from my extractor fan. At the moment my extractor discharges through system 150 rectangular duct and then through a standard airbrick. I need to increase the flow area of the airbrick and am thinking of cutting out the louvers of the standard airbrick and installing this to the face of the wall i.e not built in, to give me a larger flow area.
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QWhat is free flow area of this item, is it equivalent to 6 dia hole from my extractor fan. At the moment my extractor discharges through system 150 rectangular duct and then through a standard airbrick. I need to increase the flow area of the airbrick and am thinking of cutting out the louvers of the standard airbrick and installing this to the face of the wall i.e not built in, to give me a larger flow area.answer nowA Good morning George. The double airbrick as a free air rating of 17968mm2 and yes it is the equivalent to 150mm or 6 inch. This is plenty for most cooker hood extracts up to 1000m3/hr.Kind regards, Marc
Explain the design idea relating to the double air brick sizes for use in conventional brick properties.
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QExplain the design idea relating to the double air brick sizes for use in conventional brick properties.answer nowA Hello Ray, A variety of different airbrick sizes are available. These are used for different applications and provide different levels of airflow.As a rule of thumb, the larger the airbrick, the more air can flow through.Can you please clarify your question and application and well be more than happy to advise on a selection of suitable products?Kind regards, Michael
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