Conecting Three extractor Fans

[Meps]

Conecting Three extractor Fans .
Can any one tell me if I can and how would I connect Three extractor fans, one from a shower room one from a bathroom and one from a toilet. to an external vent via ducting
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moderator

moved as poster doesn't mention "electrics" only ducting

 

[Damocles]

On the face of it no you can't. You would need valves to stop the air blowing back the wrong way. Even if you found some it would reduce the efficiency odf the system so i reckon you would be wanting a better than normal fan.

Is there a forum for air conditioning engineers?

 

[felix]

You might just get away with it if you can find fans with the backdraught flaps built in (they do exist) but I still wouldn't recommend it. Those flaps are not completely airtight so a little of the stench from your toilet is liable to leak out into the other two rooms.

 

[masona]

Is there a forum for air conditioning engineers?

We did have a couple on here sometime ago and they've not been back since
I did remembered one of them come from here.