In fact the term oil filled radiator is a bit misleading, it convects heat more than radiates it. the term oil filled radiator is a misnomer.
Most things to do with heating are misnomers. Boilers don't boil (if they did the system could explode), as you correctly say radiators mostly convect rather than radiate. Copper pipes are in fact plain tube, not pipes (which have sockets and spigots) and header tanks are in fact cisterns not tanks (as they're open to atmospheric pressure).
In fact the term oil filled radiator is a bit misleading, it convects heat more than radiates it. the term oil filled radiator is a misnomer.
Most things to do with heating are misnomers. Boilers don't boil (if they did the system could explode), as you correctly say radiators mostly convect rather than radiate. Copper pipes are in fact plain tube, not pipes (which have sockets and spigots) and header tanks are in fact cisterns not tanks (as they're open to atmospheric pressure).
