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Do-It-Yourself (DIY) Question & Answer Forum
Extractor fan for non window bathroom
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<blockquote data-quote="SPECIAL LOCATION" data-source="post: 507345" data-attributes="member: 250"><p>Most axial fans can't shift more than the width of a wall...</p><p></p><p>anything 2m or more in length probably needs a centrifugal fan...</p><p></p><p>But as Bruspark said.. </p><p></p><p>If you want to extract air from a space..</p><p></p><p>There MUST be the ability to allow the same rate of air to enter that space...</p><p></p><p>Otherwise you will never get any airflow...</p><p></p><p>and without airflow any environment with moisture or steam will have mould problems..</p><p></p><p>[ Try an experiment yourself..</p><p></p><p>Blow down a 0.5m length of hosepipe, compared to an 8m length of hosepipe...</p><p></p><p>You will then get an idea how much harder work it is to shift air a longer distance! ]</p><p></p><p> Guinness </p></blockquote><p></p>
[QUOTE="SPECIAL LOCATION, post: 507345, member: 250"] Most axial fans can't shift more than the width of a wall... anything 2m or more in length probably needs a centrifugal fan... But as Bruspark said.. If you want to extract air from a space.. There MUST be the ability to allow the same rate of air to enter that space... Otherwise you will never get any airflow... and without airflow any environment with moisture or steam will have mould problems.. [ Try an experiment yourself.. Blow down a 0.5m length of hosepipe, compared to an 8m length of hosepipe... You will then get an idea how much harder work it is to shift air a longer distance! ] Guinness [/QUOTE]
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Extractor fan for non window bathroom
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