Thanks for your reply Barney Magoo and Shane007.
I have a 4 channel Horstman H47XL installed and all circuits, timeclock, stats, zone valves, and boiler/pump are all protected by 3A fuses.
Shane007, I have everything wired as you have described above. Regarding the pump and boiler the plumber did say that the pump was integrated in the boiler, In other words I dont have a seperate pump! There is also a 2.5A fuse inside the boiler itself.
I do understand the importance of using a qualified electrician its just our budget ran out and it has been a little cold lately. With heating no working properly we have were not left with much choice we had to get it working.
I could probably go back to Heatmerchants where I bought the zone valves and see if they can tell me if it is ok to take a live feed straight of the zone valve to power the boiler. Failing this I will have to give the electrician a call.
Thanks for your help