My old heating stem has the flexible cables from valve and pump clipped to a wooden board then entering flat trunking via end or a side hole. The trunking contains the flex(s) as far as the Danfoss junction box. I will be adding a futher "zone" with another valve, thermostat and junction box remotely. This will be joined to the first by a 3 core & E cable. What is the accepted method of connecting these flexes to the junction box - should I buy a couple of flex outlet plates (seems OTT) or is a cable clip sufficient as above?
Geo