Power from house cu to mancave
- Thread starter Lewis247
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The most popular answer on here will be: get a qualified electrician to do it.
More information would be helpful to advice what is needed.
If you are talking down the garden, then it will usually require SWA armoured cable and buried a suitable distance underground.
More information would be helpful to advice what is needed.
If you are talking down the garden, then it will usually require SWA armoured cable and buried a suitable distance underground.
Hi notch7 thanks for the fast reply
I was thinking to do it myself then get a friend of a friend who is an electrician to check it all over for me i was thinking to go down the route of adding a extra mcb in my consumer unit or even using the 40A shower one that's not in use then running a cable from the mcb to my garage an connecting it to a separate smaller consumer unit an running 10mm SWA armoured cable to my man cave / mini house there will be quite a lot of electrical stuff in there as I'm thinking to fit a shower/lights/wall sockets etc etc
I was thinking to do it myself then get a friend of a friend who is an electrician to check it all over for me i was thinking to go down the route of adding a extra mcb in my consumer unit or even using the 40A shower one that's not in use then running a cable from the mcb to my garage an connecting it to a separate smaller consumer unit an running 10mm SWA armoured cable to my man cave / mini house there will be quite a lot of electrical stuff in there as I'm thinking to fit a shower/lights/wall sockets etc etc
Then get him to also do the design of it all.
And be aware that (legally) you may not do this, or the water and drainage, without Building Regulations approval, so you need to decide whether you are going to do it legally or illegally. Your plan won't work for the former.
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If that is a shower as in electric instantaneous heat type shower then be prepared for big cable costs.
Indeed - and also be prepared to re-think the idea of running the entire 'man cave' supply from a 40A MCB.
Kind Regards, John
and
Current-wise, it would be more than adequate for the shower, but I don't know about the rest of the "quite a lot of electrical stuff". In terms of voltage drop, the adequacy of 10mm SWA would depend upon the length of the cable.
As I previously hinted, a 40A supply would not be adequate for a shower and "quite a lot of other stuff". Indeed, depending upon its rating, 40A might not even be adequate for the shower alone.
Given your unusually high requirements (for an outhouse), I would think it would make sense to go for larger cable, and to supply it directly from a switch-fuse (maybe 60A or 80A), not the least in the interests of future-proofing. If you already have an electric shower in your house, you may well have to seek DNO permission to install a second one on the same supply.
i
KInd Regards, John
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I may have misunderstood, but the shower circuit is not in use, AIUI.
That's also my understanding - that the OP was considering making use of an unused 40A shower circuit as the entire supply for his outhouse (which itself will have a shower) - and I wouldn't say that a 40A supply would be adequate for a shower (in the outhouse) plus 'a lot of other stuff'.
What may have confused you is my mentioning the possibility that DNO permission might be needed - but that was in case there was a second (used) shower (and shower circuit) in the house (in addition to the unused shower circuit).
Kind Regards, John
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I'd recommend getting your electrician mate to calculate the cables required before hand. It would be very annoying if you assumed 10mm would be fine, then he refused to connect it due to an undersized cable. Then you'd have to buy and fit a new cable or revise your ideas for this outbuilding.
Regarding the shower, you may find it more economical to immersion heat a cylinder in the rafters, for example. But someone on site could probably help with these decisions.
Regarding the shower, you may find it more economical to immersion heat a cylinder in the rafters, for example. But someone on site could probably help with these decisions.
It would certainly be very 'economical' in terms of the demands on the electricity supply (hence potentially also on cable size/cost etc.), but I don't see it as very likely that storing hot water in an outhouse, even for a relatively short period, could be more economical in terms of running costs, could it?
Talking of which, I don't think we've yet heard about how (if at all) this outhouse is going to be heated.
Kind Regards, John
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Well i only said may, without more information none of us really has any idea. That was my real point, it wasn't actually a suggested install vv based on the information in the thread.
If it would need a new supply from a new transformer from a pole via 3 miles through a site of scientific interest at 200k pounds, yes, it would be more economical overall.
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