advice on garage electrics

[Robotstar5]

Where you do need to be careful is the rating of the CPC - if you parallel the cores you may have insufficient CPC rating.

Time to dust off the adiabatic equation, the OP definately needs a sparky

 

[madkayaker]

Time to dust off the adiabatic equation, the OP definately needs a sparky

See post #21 and I can't remember if I didn't say it at the start