I'm not an electrician but I'm looking for advice on buying a bathroom fan. I've decided on the Silent 100CZ, which is made by Soler & Palau, a Spanish company. But they do two models of the 100CZ, which is why I need advice. The first is rated IP45 (from which I understand it can be sited in the shower area) and the second has a transformer (which will be sited in the loft) and this one is rated IP57 and is about £40 dearer. Obviously I'm trying to keep the costs down so I'm wondering why anyone would go for the second one when, as I understand it, the first one can be sited in Zone 1 without any safety issues.
By the way, I'm going to get a qualified electrician to wire up for me as I understand I will need a Part P certificate from him.
By the way, also, does anyone have any views on the effectiveness or otherwise of fans with a plate in front of them compared to the ones where the grill is open and the air is sucked straight in.
Thanks for any advice.