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Shower and undersink water heater.

Former Community Member
Former Community Member
I have a property that has 6mm mains swa cable coming into the consumer unit via an RCD isolation switch. The home has a 7.2kw electric shower and I wanted to add a 7kw under sink water heater. So as to prevent overheating of the main cable and tripping of the main incoming fuse which is just 40 amps, could I put a 32 Amp 3 Pole Change Over Switch ahead of the two six mm cable wires which would be serving the shower and the water heater.  Therefore negating overloading the main wire coming into the home by allowing only one of the appliances to be used at a time.
Parents
  • 0
    A 2 kW stored hot water heater will do the job and you can fit up to a 15 unvented without a training certificate and LABC notification.
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  • 0
    A 2 kW stored hot water heater will do the job and you can fit up to a 15 unvented without a training certificate and LABC notification.
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