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I have a steel beam, PFC, installed under a first floor area. The thing is the joists holding up the floor above vary in depth and combined with it being an old property is a shall we say varying in shape. Two of the joists rest on the steel beam whereas others have a gap of a few mm to over...

Okay persuaded I will fit a 32A RCBO. If I do experience any problems I can always put a larger on in at a later date.

I am just worried 32A is not big enough. If only one oven is on and a couple of the hob zones that is as near as damn it 7KW

The 10mm2 cable is already in place. All the kitchen is fed from the red phase . 100A main switch switch, 32A RCBO for the sockets, 6A MCB for the lights and a 32 A MCB feeding the 10mm2 to an old type cooker unit, cooker switch with 13A socket, which is to be dispensed with, and hence onto...

The hob blurb from NEFF states 11100W 220-240V. So let me start again. What I will have is an induction hob of 11.1KW at 14m from the CU. Two ovens combined power 6.9KW, 3.45 KW each, at 11m from the CU. So you are saying I am okay to use the existing 10mm2 T&E to feed all 3 appliances?

Ah yes but the hob has an actual connected maximum load of 15KW but limits itself to a maximum of 11.KW so there could be a draw of 48 amps, assuming 230V not 240. I think the calculation was more concerned about the voltage drop. Would be lovely if I could supply the hob and both ovens on the...

To answer the last bit first yes I have a 3 phase supply. So do I deem you are saying that it is okay to feed this induction hob at the end of a 14m run with 10mm2 ?

I was just putting in the possible load of up to 11.1KW and the distance into a calculator, found it on the TLC site referring to 18th edition and it comes up with 16mm2.

Have had question answered to some degree by other requirements. Am also installing an induction hob max possible load 11.1KW. Now using 18th edition calcs I need it staes 16mm2 cable as the run is 14m. I was hoping to use the present 10mm2 circuit for the hob. So now that will be used for the...

Yes made a right mess of my cable sizes have now edited the post.

Am about to install two ovens, one above the other. Both are rated at 16A max. Now am wondering about the feed and isolation needs, here are my alternatives, in my opinion. 1 Feed both off a 32A MCB using 6.00mm2 and a single 32A isolation switch by the ovens in the kitchen 2 As above but use...

You cannot go wrong with a plastic fittings combined with copper pipe unless you dismantle the fitting and reassemle incorrectly but why you would ever do that is beyond me. Most problems I have seen with plastic pipe is not treating the pipe with care. If the end of the pipe is unmarked , has...

Each to their own.

Do you base your comments on experience? No idea what the Speedfit pipe is cheap , couplers expensive is meant to mean. I have used Speedfit fittings for years, some I installed nearly 20 yeras ago still working fine and never had a problem.

My wofe was doing an Amazon order so just tagged on a metre of the helical rod.

I have seen on Amazon one can buy just the helical rod. I may get a length of that and resin it into both skins of brick. Or possibly these https://www.toolstation.com/masonry-torx-frame-fixing-screw/p39995 using a washer which will be hidden by the render.

Have just seen a few varieties. Not cheap as I only need about 6 at most and lots only sell by the hundred.

That was my intiail reaction . Say do away with top 5 /6 courses and rebuild with standard wall ties. I am sure I saw some time ago about a retrofit item that you drill straight through the front brick and into the brickwork behind.

In the kitchen of my old cottage there is a fireplace with brickwork down to ground level. The previous owners did not use this fireplace and converted it to take an oven. To level everything up they built a single skin wall in front of the chimney brickwork. Problem is they never bothered to...

Am not too keen on glueing as I envisgae some time in the future it parting company. I am thinking of using these https://www.i-sells.co.uk/kair-system-204-fastseal-rectangular-ducting-to-fitting-quick-connector?ref=ViewTitle They seem commonly available, Toolstation etc as far as I can see will...