We had a new combi boiler installed a few years ago to replace an old conventional boiler. The plumber wired up the new combi using the fused spur/mains which feed the old boiler. The cable goes from a fused spur (mounted next to the boiler) to a switch in the kitchen, before going back to the consumer unit. We're looking to have the kitchen wall taken down and fit a new kitchen suite. The switch serves no purpose now as the combi is controlled by a wireless thermostat/programmer. The CU has a MCB for the boiler. Can i just run a new 1.5mm cable from the CU to the boiler fused spur or is there more to it than that? The boiler and CU are both located in the garage and only a few meters apart. I've not really touched a CU before but i cant imagine this being difficult. Is it just a case of isolating the power (ie: the switch in the outside switch electric meter cabinet, disconnecting the existing cable and wiring up the new one)?
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