no back up immersion

[mazperks]

The dual element imm heater sounds like a good idea , do they have separate terminals for off, and on peak supplies, so as to utilize my unused supply cable.

 

[EFLImpudence]

The dual element imm heater sounds like a good idea , do they have separate terminals for off, and on peak supplies, so as to utilize my unused supply cable.

Yes, and also the boost is a shorter element so that it heats the top of the tank for quicker use.

 

[kai]

The Horstmann E7 control is suited to this type of setup, feed both the peak and night supplies into the Horstmann, it has a changeover switch inside, which only allows one supply to be on at a time, ideal for your situation.

 

[mazperks]

Thanks for all the help guys you've put me on the right track.

Ian.

 

[phatboy]

No need to run an on-peak supply to the immersion heater - in our place we had a BX2000 unit installed next to the fuse board, and just ran a single cable to the immersion heater, with a DP 20amp switch next to the heater.

 

[EFLImpudence]

No need to run an on-peak supply to the immersion heater -

OP already has on-peak supply at the immersion.

Good idea, though.

 

[Taylortwocities]

You do not need a dual element immersion heater.
You can use the existing one.

All you need to do is to buy one of these timers

http://www.horstmann.co.uk/download...g/BX2000-InstallationInstructions.PDF[/QUOTE]

This will connect to your existing immersion.

Connect up the off peak and the 24 hour electric feeds that you have and the job is done.