My living radiator seems to have a lot of heat at the top but the further down you go it gets colder but only at the right hand side. The pipe going to the right hand side is not as warm as the one going to the left. I have taken a video. As you can see, I can easily touch the right hand side when the heating is on full blast but when I touch the left it is very warm. I have tried bleeding it but the only thing that comes out is constant water, no air. Is this just the case of opening the valve on the right hand side? And if so how do I do it as there is no cap or anything to turn it. Thanks in advance.
