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And a new CU to go with it. Will post picture when I find the lead for the phone. CU Fuse circuits at present are 30A Cooker, 30A sokets, 5A Downstairs lighting, 5A upstairs lighting, one spare fuse unused and one empty way. Give me a moment and I'll create the schedullrequested.

So if its a 415v feed is there a transformer in there? If so the max load is 415x60 so 24kW ish and over 100A at 230v? Not part P qualified. so will need external inspection and testing. 3 bed small house with 2 adults 2 teenagers. Current CU has fuses - 4 circuits Cooker, Upstairs Lights...

Hi again, The company main supply box says 415v 60A. on the front. Why does it state this? I need to know if I need to ask Southern Electricity to upgrade my supply as I am fitting a 10.5Kw Shower which will pull an extra 45A above what we use now? Thanks, Amy

Hi All, What is the minimum bend radius for 16mm T&E? How do you ensure it is not exceeded when coming through a wall and then down to the CU for example? If this involves chiseling away the lip of the hole the cable appears through what methods can I use to fill the big gap left...

Thanks for the responses. Actually its a small bathroom and the alternative placings are all within a small step of each other. There are some benefits I can see to being outside the bathroom shortly after the shower starts to smoke, clothed or not. The airing cupboard door is right next to...

The new electric shower is going on a wall shared with the airing cupboard. Can I put the double pole isolating switch (with mechanical on/off indication) inside the airing cupboard, but quite prominent close to the door etc. or must it be in the bathroom on a pull switch or on the wall just...

Ok So I have accepted that I will have to use 16mm cable and change the CU for an MK one so I can use a 45A MCB to feed my 10.5kw shower. The question now is how do I feed fan required above shower? Or can I use a PIR and a separate circuit to trigger fan when someone's in the bathroom...

Thanks very much for your reply. It's very helpful.

Hi I'm looking have a new installation of an electric shower in the bathroom of my small house. The new shower unit is 10.5kW so I believe I need a 50A Double Pole pull switch and a 50A MCB fed from a 63A RCD. The current CU has only 4 circuits, Cooker, Upstairs lights, Downstairs lights...

I'm seeking information on descaling a heatbank (see my post today) would X400 be any good for this. Thanks Amy

I had thought of attaching my spare pump via a mesh filter ( sieve in a bucket and some garden hose via appropriate reducer) to circulate descaling solution round heatbank coil in situ. I have also seen a similar kit for hire that does whole system by inserting in place of pump. Amy

What are the chances of successfully descaling the heatbank on this model? CH is fine and all control systems working ok but over time the outrput of HW has become less and less. Now can only run bath at a trickle. I guessed it might be a scale problem and posts to this site seem to confirm...