I heard a tale at work today. Someone has a floor mounted myson heated towel rail that runs off the central heating. It is slowly getting less and less warm and he concludes it is gradually filling with air. He has recently moved in and so has no history of the heating system He claims that there are no bleed screws on this towel rail which I found quite incredible.
Does anyone have one of these rails and know the secret of bleeding them?
TIA
Bob