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Hi, I need to fit a 300mm long, 107 diameter max vent for a fan through a layer of tile and bricks, totaling 300mm thickness. I purchased a diamond core bit (diameter 107mm) with a 8mm guide bit and will hire a clutched drill for the job. I also purchased a 10mm X 300mm masonry bit to drill a...

Thanks Equitum, that's exactly what I was looking for. A couple of questions remaining: 1. ok I shouldn't use self adhesive trunking in the bathroom due steam. How do I then fix the trunking to the ceiling? Plugs + screws? What spacing? 2. you mentioned sealing around the holes in the...

Thanks Breezer, but I've gone through all of that info. What I'm after is a. someone to tell me whether the proposed installation in my drawing is sensible and b. what parts to purchase (i.e. what to use on the surface when running cable from a ceiling through a wall to the cupboard next door)...

Hi all, I'm planning on installing an IPX7 bathroom SELV fan, wall mounted, wired via the ceiling rose, through 3-pole switch and transformer (the last two being situated outside the bathroom in a storage cupboard). The bathroom is situated in a first floor flat. Walls are tiled, ceiling is...

Hi, I'd like to install an extractor fan in our 1st floor flat's bathroom. For this I would need to drill a hole through a tile and bricks of a total thickness of 300mm and a diameter of 107 mm. From what I've seen on these forums and a chat I had at the local hire shop it looks like a...

Thanks. There's no immersion heater as that was taken out a while back and replaced with a combi boiler in the kitchen (no tank). Q: is it ok to run cable along the bathroom ceiling (surrounded by self-adhesive trunking)? I'd like to spur off the ceiling rose to feed the wall mounted fan. The...

Thanks. I checked the links and found them useful in explaining the idea behind sup bonding and main earthing as well as the various earthing set-ups (TN-S etc). How can I check whether the bathroom lighting circuit has been bonded to the metallic components of the bathroom? How am I...

JohnD, Thanks for a very helpful post. I've just purchased a MEM fuse you refered to on Ebay. Yes there is a green/yellow Earth cable that enters the flat with the supply cables (thankfully). You should be able to see it on the pic I inserted in a previous post. There is however no cable...

1. Can I fit one of these on my MEM fusebox? I'd like to replace the 15A with a 5A. http://www.tlc-direct.co.uk/Products/WYC5.html 2. If I wire a wall-mounted bathroom fan (non SELV) in zone 3 from this 5A fuse, does it need supplementary bonding? What about outside all zones? What about...

I should add that our place is a flat, not a house. The meters/seals/etc are downstairs in the adjacent block (to which I don't have a key BTW)

Here it is: Does it need to be replaced? Can I not just leave as is and replace the 15A fuse with a 5A equivalent? All it feeds is the one airing cupboard light (immersion heater long gone) and possibly in the near future a bathroom extractor fan. Are these old Wylex fuses still easy to...

Thanks comms. The quote was for 470 GBP, including running an Earth cable from the water supply, through the kitchen and to the MET. Without the prior fitting of an isolator switch, I have no problem admitting that I am out of my depth. I'll try for more quotes but I am considering leaving as...

I wish to replace my old CU (see photo in my profile) with a split load RCD protected one. An electrician gave me a quote which seems high and I am considering doing the work myself. I called the supplier (EDF) who said that they do not fit isolator switches (as suggested on other threads - yes...

Hi, I'd like to install a fan in the flat's bathroom, preferably one that comes on with the light (i.e. wired to the SwL, L, N and earth of the light via a 3-pole isolator switch mounted outside the bathroom). Here are my questions: * the ceiling where the light is situated is concrete so...

Hello, I mistakenly posted something in the electrics section initially so apologies if you've already read this. I have an old Fer Industrie boiler with a timer to control the CH channel (see photo in my profile). I'd like to fit a programmable RF thermostat to the system. I understand...

Kwikfix, Thanks for the suggestion. Sounds like a plan. So just to give me an idea before I go out and get the RF thermostat, and if you don't mind looking at the pic of my timer/boiler in my profile, how does the thermostat connect to the existing installation?

Thanks Steve. Can I not just replace the current timer device with a programmable RF thermostat, something like this: http://www.screwfix.com/prods/93829/Plumbing/Central-Heating-Controls/Horstmann-Wireless-Room-Thermostat Or does my boiler (see pic in my profile) require a timer...

Thanks Dave. As I'm a week-end DIYer, can you clarify what you mean with "supply to this side will have to come from the boiler control board its self." What are the outputs of thermostat generally? N, L and SwL? And if the L that I connect to the boiler is 220V, will the thermostat handle...