Tue, 19 Dec 2023 08:25:25 +0000 http://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16247&Focus=275592#Comment_275592 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16247&Focus=275592#Comment_275592 Tue, 17 Sep 2019 15:17:14 +0100 morsing
We're having a new bathroom installed in a 1970s house. Everytime we have someone from the bathroom company coming out, they start talking about installing a fan inside the shower. When I point out the ventilation system, which vent sits in the corner by the window on the other side of the bathroom to the door and shower, they say "Oh right, well we can move that to sit inside the shower.".

When I installed this, I am pretty sure I found documentation that I based the vent location on, but now I can't find it again.

So in a bathroom with a window and shower, where should the vent be?

Thanks]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16247&Focus=275597#Comment_275597 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16247&Focus=275597#Comment_275597 Tue, 17 Sep 2019 20:33:22 +0100 djh
So if I did it again, I'd put the extract vent outside the shower. If the shower was fully enclosed I might think differently, I don't know.

* Actually it's high on the wall above the shower enclosure.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16247&Focus=275603#Comment_275603 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16247&Focus=275603#Comment_275603 Wed, 18 Sep 2019 08:49:07 +0100 GreenPaddy
That said, bathrooms aren't usually large rooms, so the extract is never far from the shower. Your installers are probably right, but how far is the existing extract from the shower, and is the shower open around the top (ie glass screen to 2m, or closed floor to ceiling)?]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16247&Focus=275605#Comment_275605 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16247&Focus=275605#Comment_275605 Wed, 18 Sep 2019 09:24:08 +0100 morsing The shower entry is facing the door, so not towards the far side of the room, but the wall with the gap is.

The vent in reality is probably less than 2m from the shower.

My main concern with a vent inside the shower, apart from draft, is also over-sensitivity. It needs to vent the whole room, not just the shower. If it was inside the shower, it would also be right next to the door, and there would be no flow through the room.

Thanks]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16247&Focus=275609#Comment_275609 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16247&Focus=275609#Comment_275609 Wed, 18 Sep 2019 11:36:03 +0100 djh Posted By: morsingIf it was inside the shower, it would also be right next to the door, and there would be no flow through the room.
I agree with GreenPaddy that crossflow is more important. With continuous ventilation, the shower will dry out quickly enough. As long as its designed to get wet, it'll be fine.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16247&Focus=275624#Comment_275624 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=16247&Focus=275624#Comment_275624 Thu, 19 Sep 2019 08:38:46 +0100 morsing