The system is running off a Worcester 24cdi which works fine without any unusual noises and plenty of hot water. All the rads are hot upstairs and also the one at the bottom of the stairs, however, the large rad in the lounge is very hot from midway up and warm/hottish across the bottom. I have taken it outside and flushed it with a hosepipe although the water ran clear. I have also changed the thermostat - no different. Today I turned all the other rads off, but it stayed the same.
Any ideas guys
Any ideas guys