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Bathroom Extractor Fan Dripping
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<blockquote data-quote="SPECIAL LOCATION" data-source="post: 505054" data-attributes="member: 250"><p>If you do the maths of the cm2 area of a 4" (100mm) diameter duct..</p><p></p><p>(Pi r2) 3.142*50*50 = 7855cm2</p><p></p><p>For an average 760mm wide internal door you need 10mm or gap </p><p></p><p>7855/760 = 10.3mm</p><p></p><p>So no good having carpet blocking the airflow..</p><p></p><p>Otherwise its like trying to use a vacuum cleaner with a blocked outlet!!</p></blockquote><p></p>
[QUOTE="SPECIAL LOCATION, post: 505054, member: 250"] If you do the maths of the cm2 area of a 4" (100mm) diameter duct.. (Pi r2) 3.142*50*50 = 7855cm2 For an average 760mm wide internal door you need 10mm or gap 7855/760 = 10.3mm So no good having carpet blocking the airflow.. Otherwise its like trying to use a vacuum cleaner with a blocked outlet!! [/QUOTE]
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