Thanks for the reply. It's not such an old radiator, about 12 years old. In inches, the length was 53. I just converted it to mm as all new radiators seem to be quoted that way. I'll try your advice anyway. Thanks.
I'm about to replace an existing radiator with one the same size. I have measured my existing one as 1346mm x 530mm. These are the physical dimensions of the actual radiator, with no valves etc included. When searching for a replacement radiator I can't seem to find matching sizes. I can...