I have a 3 storey house and the toilet on the ground floor is the only room
without a radiator. There is no way to connect onto the central heating
pipes on the ground floor so I will have to run two pipes down the pipe
chase from the first floor. I know I will need to attach a drain point to
this part of the system as the main drain point would not empty the water in
this radiator. Can anyone forsee any problems with me attaching a radiator
in this way?

John