hi i want to put central heating on my n/b using two radiators.i have an eberspacher 5kw water heater 12volt out of a transit van,(it worked in the van.)how do i wire it up.all i need is an on/off switch i am not bothered about a timer,I have the heater unit from which a loom goes to a silver box,this box has 4 plugs marked A,Test, B,and C. from this box there are 2 looms
loom1 1heavy brown wire , 3 thin brown wires, and 1thin brown/white wire
loom2 1heavy orange wire, 1 thin orange wire 3 black wires, 1 thin orange/black wire, 1thin orange/green wire I would also like to put a fuse in the line. ps any other tips about these heaters would be a help regards jim