shower & extractor fan

[mattyy]

There's loads of advice on wiring a fan so it comes on with the lights. Can you wire it so it comes on with the shower pull cord?
Shower will be 10.8kW, 10mm2 cable into "old style" CU, 45 Amp no RCD or any fancy stuff. None of the work is done yet - still in planning!
Also what is the best way to prepare for the posibility of a second electric shower being required, is the only solution a second line into the CU?

 

[breezer]

in Reverse order

Yes, the only way is to run a new cable to the consumers unit.

what you want to do is impractible (fan on with shower) see http://www.diynot.com/forums/viewtopic.php?t=1972&highlight=shower

(one day i will learn to spell)

 

[mattyy]

Thanks, you've confirmed that I will need to upgrade the CU - only one circuit free.