Fitting 2nd Consumer Unit?

[Rusty2]

Hi All - have had it suggested that 2 electric showers must not be installed on one CU as this would be too much, but that extra tails can be put into the Henly block and a 2ns CU installed to run the 2 shoers off, as apparantly this would not have either the original or the new CU overloaded. Do you agree that this is a good idea, and if so, is it safe to add tails to the Henly block or shoudl I do all the other work and then get a sparky to do final connection?

 

[plugwash]

using the henly will avoid overloading the CUs (two showers on a domestic CU is pushing it, iirc the busbars are generaly rated at 80A continuous and 100A intermittant)

what it won't avoid is overloading the meter and service fuse, having said that theese routinely get heavilly overloaded and generally seem to survive and showers are quite short duration loads.

finally you should note that you may well have water pressure problems running two showers at once anyway.

 

[ricicle]

I've read your other post - what are you up to Rusty?

 

[Rusty2]

Hi - thanks for advice.
I doubt the two showers would ever be run at the same time. My sister alreday has one in her son's room (older style electric which doesn't seem to have any sort of pump inbuilt) but wants a modern electric one in main bathroom.
If didn't use at same time wqould this be okay?