If I installed a 10.8kW electric shower with 6mm2 cable instead of the correct size 10mm2 & the correct loading MCB, is it a dead cert the cable will overheat & burn the house down? How easy is it to chase the existing cable (6mm2 with the correct size (16mm2). The property is a newish build...
I want to install a new shower unit (Mira Sport Max 10.8kW) Can anyone advise me about uprating the consumer units' MCB (Crabtree Starbreaker). After reading some info it sounds as if I am required to fit an RCBO (50 amps) is this a simple task or can I getaway with uprating the existing MCB...