Firstly, what type of switch should I use for the immersion heater and the central heating timer. A 13A FCU (Screwfix p/n D15777) or 20A DP Switch (Screwfix p/n D13639)?
Secondly, the existing consumer unit is one of the old bakelite ones which has probably been here since the house was built in the 50s. I've bought myself a new split load consumer unit with MCBs. I want to disconnect the existing wiring from the old CU and connect it to the new CU. This should make it easier for me to changeover from the old wiring to the new wiring as I have more ways on the new CU than I need.
My idea was to disconnect the existing wiring from the old CU, connect them to some terminal strips (e.g. Screwfix p/n 17672) mounted in a sealed box and then extend the wiring from the terminal strips to the new CU using twin & earth. Is this viable? If not, could someone recommend another method.