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Hi Guys Can anyone offer some advice on radiator valves and boilers, First of all can I state I shall not be installing the boiler myself, but may decide to buy it depending on what price Mr. Gasman can get me one for. I shall be installing the radiators and pipework to them myself...

123 The cooker cable isn’t running through any insulation, I guess I could have got away with a smaller one, but put the larger one in just in case a slightly higher wattage cooker is installed at some time. The ground floor and upstairs lights will be on two separate RCDs, with the bathroom...

123 About MET, the existing earthing in my house is a bit like the pic. in the on site guide for TN-C-S except the 16mm earth does not go onto an earth block and with 10mm earths going onto the various services. Instead the 16mm incoming earth goes straight onto the earth connecting strip...

Hi 123 One way to tell if something is extraneous is to conduct a measurement between the said item and the MET. If the resistance is below 22KΩ then it can be considered to be extraneous hence needs to be bonded. If it is above 22KΩ then it doesn't need bonding. Hope you don't...

Thanks for your comments guys, I think in view of what as been said, I’ll bond the ring circuits to the boxes with 1.5mm, the lighting with 1mm and just put a small section of green/yellow sleeving on the cream RCBO leads, so the cream is still also visible. Sparky123 thanks for your comment...

Thanks for your advice guys, I must admit I have not put flyer earths from the faceplates to the metal boxes, buts it’s no sweat I can always bung them in, unusually I use 2.5mm2 for this purpose on 2.5mm2 ring mains., though I’m not sure what size I should use when bonding back onto the box...

Hi Can anyone help please. First of all can I say I am fully aware of part P of the Building Regs and it’s constraints. My house does have a main 10mm bonding conductor from the consumer unit onto the gas service pipe and then looped across onto the rising main water pipe with no break...

Thanks for the reply Kirkgas, the leg that I need to extend does have a compression stop fitted to it, but the stub of pipe it is fitted onto will not allow me to cut it off and then be able to fit a new olive, unless of course I leave the existing olive and nut on and as you say use the...

Hi can anyone help, I want to replace an existing Yorkshire tee piece with a new one, the existing one is in a horizontal mains water pipe. The reason I think I will need to replace the tee is because the one leg of the tee has a very short stub of pipe and compression stop end on it, if I...

Pensdown Thanks for your input, the wiring is in place for a smoke on the landing so there would be no problem daisy chaining off it to put the CM in the airing cupboard, I just wondered if the location was acceptable under 17th Edition and beings as it will be stuffed in a cupboard whether...

Hi ebee Thanks for clarifying the point about the RCBO. I think the existing consumer unit will not be big enough, it has 11 MCBs and 1 RCD. To put all RCBOs in I think I would have to pop round to my local bank after dark with a suitable wrecking bar in my hand. I thought maybe I...

Hi Dingbat, No I realise you wasn’t having a go at me, I hope that we all come on these chat forums for a little bit of help and not a slagging match, to me it would kind of defeat the object of them. But it did make me have another look at the Screwfix main catalogue where it states...

Guys while I’ve got your attention, I hope you don’t mind me asking without entering a new post. Can anyone advise I’m fitting a heat detector in the kitchen and garage, smoke alarm in the hallway and on the first floor landing. A Carbon Monoxide detector in the lounge. Question: I...

Thanks for your comment Dingbat, I’ll stand correcting having looked at the screwfix catalogue again it does say “Consumer Units & The 17th Edition” and not “Consumer Units to the 17th Edition”

Hi ebee When you say the RCBO will detect N/E faults, are you saying it will only detect and disconnect L/E faults, because as you say they are not double pole. Keeping the kitchen on its on ring for power can beggar the split on a dual RCD board, I assume you mean the loads would not be...

I know what you are saying Cremeegg about using RCBOs, they are very good but at a price as you said, and as there is so much other work to be done in the house I think I’ll go for the shuffle option. The CU is a GET with get GET MCBs, if I don’t mix and match the make of the RCBOs maybe they...

Hi Chris 5 & Cremeegg Thanks for you comments guys, I’m not sure which way to jump as when the house is done up I shall be hopefully looking for a move. So just wondering if I could still use the existing CU and have the ground floor ring, electric oven and first floor lights on the RCD...

Hi Can anyone enlighten me, what is the difference between consumer units to the 17th Edition and those to the 16th. I ask because I have just been looking at some in a catalogue which says it has Dual RCD and I don't know what the second RCD would be for. I understand ring mains and...

Thanks guys for your comments, I think I will leave the cross bonding out in the kitchen and to the boiler. Can I ask again, do you know if the 240v IP44 and IP65 down lights will be ok in the zones above the bath and shower, obviously they will run through an RCD. When the 17th Edition...

RF Lighting (When you say I’m correct that supplementary bonding was required until the recently published 17th edition regulations came into force) Another thing which used to be done was to cross bond all the pipes of a central heating boiler, for example the flow and return pipes from an...