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I do believe your physics is a bit rusty. If you add heat to some water at 100C and turn it into steam then you've added a certain amount of heat. If you turn some water vapour at, say, 50C into liquid water (still at 50C) and (hey presto) you find you've got the same amount of water as you...

I'm no spark so can't comment on your idea, but normally people say that new CUs need notifying to your Local Authority's Building Control and it's nearly always cheaper to get it installed by a professional who can self-notify (via his trade body) than to pay the BC's fees.

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If you're going to connect your new switch to (the position of) the existing one by burying a cable then, I believe, you'll need to create a safe zone connecting them. People here reckon that a blanking plate doesn't do this. I leave it to others to say whether one of these (uses minimal...

I had assumed that, whatever the original intention was, in practice RCDs force us to correct minor (if there is such a thing) or intermittent faults before they have a chance to cause real danger.

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One of the regulars here who, unlike me, knows what he's talking about said in: https://www.diynot.com/diy/posts/4171551/ that you can wire the whole house in flex.

I imagine Eric meant a "torch" (a word he uses near the end) .

I'd say that's 10189, but I'm happy to be told I'm wrong.

Oh dear, I can feel myself getting into JohnW2's bad books again. When he said (in entry 44): I believe he meant "not available".

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I'm always a bit sceptical of figures gleaned from the web, but wikipedia: https://en.wikipedia.org/wiki/Lumen_(unit) says (in the final para under "Explanation") "A source radiating a power of one watt of light in the color for which the eye is most efficient (a wavelength of 555 nm, in the...

Breeno said: "so it will be ok to wire the below LEDs into the mains without transformer? https://www.screwfix.com/p/lap-fixed-fire-rated-led-downlight-brushed-chrome-240lm-2-5w-240v/5708f" Ban_all_sheds said (in entry 5): Obviously you need to make any changes in a safe manner.

If the poor woman, who died, had kept her seat belt on (loosely) then she wouldn't have been half sucked out through the window and would probably have survived.

Last time I looked in Robert Dyas and (in London) Ryness, they had carded fuse wire.

There's a good chance that would just be switching the Live, an Earth/ Neutral fault would still be there.

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A piece about this cable has gone up on the BBC's website: http://www.bbc.co.uk/news/uk-41391343

As long as you're careful about covering over the to-be-unused connection into the drainage system, I can't think of a good reason why you shouldn't connect the side drainpipe to the front one by using something akin to...