two electric showers

[matt30]

I WANT TO HAVE FITTED TWO ELECTRIC SHOWERS ONE IN MY BATHROOM AND ONE IN THE EN-SUITE.
I CURRENTLEY HAVE A 100AMP FUSE BOARD WITH TWO SPARE WAYS, AM I ABLE TO HAVE INSTALLED TWO 45AMP MCBS (SEPERATE CUIRCITS)???
OR WILL I HAVE TO HAVE A SEPERATE FUSE BOARD INSTALLED OR EVEN UPGRADE THE ONE I HAVE NOW?????????

 

[Chri5]

WHY ARE YOU SHOUTING AT US

 

[Chri5]

Shower circuits should be RCD or RCBO protected.

If your board is not a split board with RCD side then RCBO will be the way forward.

There's nothing wrong with having 2 x 45a loads on a board, but there isn't any diversity on a shower / water heater circuit and if the showers are used at the same time, and someone happens to be boiling a kettle, drying clothes in the tumble drier and warming mince pies in the electric oven your main incoming DNO fuse could go pop

 

[Chri5]

If you'd looked half way down the current 1st page you would have found this //www.diynot.com/forums/viewtopic.php?t=114599

 

[matt30]

thanks for your reply chri5.
if i was to have a two way consumer unit next to the old one would that solve the problem of it tripping the main fuse if i had both showers on at the same time and the tumble dryer

 

[JohnD]

No it wouldn't help.

All the power comes through the one supplier's main fuse however many CUs you have.

Another point. most UK houses don'tr have enough water flow supply to run two showers at the same time. Fill a bucket from the kitchen cold tap, time it, see how many litres per minute your house has got. Then compare that to the litres per minute of your two prospective showers.