electrical supply from boiler

[bear1]

hello
Is it ok to have the electrical supply for my boiler connected to the same insert in the consumer unit as the lights for down stairs.

bear1
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lynda, moderator

your post has been edited, please see forum rule 6a

 

[Strachan]

No. Although your boiler only has a 3 amp fuse it should be running from your sockets ring main.

 

[baxpoti]

Do you not have any spare ways on the consumer unit?

Best practise is to have each circuit on its own Mcb.


Although;
If you have a dedicated boiler supply, (providing the cable size is large enough) and it is protected by a 6A Mcb, this Mcb could also run a seperate circuit, for example lighting/second boiler.
(although you would be limited to approx 3A loading)

End of the day better to increase the size of your consumer unit

 

[Paul Barker]

It is OK if the radial is in 2.5mm but not good. You cannot put 13 amp outlets on 1 or 1.5 even though your boiler doesn't require the 13 amps some future user may connect something bigger into it. It's a bit like gas pipesizing, you have to pipesize for the maximum boiler output even if it is range rated down.

If there isn't a spare way just spur the fcu off the ring.

The only circuit you cannot share with anything is the immersion heater.