Hi this may sound a bit daft, but I am female and blonde. I am in the planning permission stage for building a 2 storey extension. My house is 3 years old and has a microbore system for the central heating and my boiler is a worcester boiler model 24/19 cbi. I want to move my existing boiler into the new proposed utility in the extension. I need to move some of my current radiators and add 2 new radiators to the existing system. A friend has told me that I won't be able to add new radiators to a microbore system is this true????