bathroom ventilation

27 Feb 2011
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United Kingdom

Sorry a bit long winded but I'll try and explain as best I can.

I have a main bathroom next to a ensuite bathroom. Extraction in the main bathroom is via an inline extractor. The ensuite has a wall extractor and it doesn't do a great job.

What i'd like to do is to add an inline extractor on the ensuite bathroom as well which would use the same exit vent as the main bathroom via a Y connector.

So my main question is this: after the inline extractors do I need to fit backdraft shutters/dampers so that when one extractor is one it doesn't send moist air down the other bathrooms ducting? Or, do the inline extractors act to stop and air coming back through?

Would be great to set it up this way as it will prevent the need for boring out another vent in the brick work.

Thanks for any help.
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Show us the wall extractor please.

Yes, you will need backdraught shutters, but they have recently improved and you can get silent lightweight ones now.

Wall vent is called a vortice, looks 100mm.

My plan for both bathroom set ups is as follows from the ceiling: Louvre vent----ducting---extractor---tubing/non return valve/tubing-----ducting----Y connector ---- outside vent.??? Should work. Wiring to sort next :)


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