If you are accustomed to the old style and insist on it
Despite the fact that there is a huge supply of tubular and panel radiators with modern shapes, there remains substantial demand for column radiators. This might be due to the fact that many people are accustomed to conventional radiators (as there are still a lot of homes in the UK where old style radiators are installed) and they prefer to buy similar radiators when it becomes necessary to replace the old ones.
A designer column radiator from quality steel is the answer
These days there is still a sizeable percentage of older homes in the UK where traditional cast iron column radiators are installed. When it becomes necessary to replace these, we have to decide what kind of new radiator would be the best choice.
It is true that a cast iron radiator keeps the heat longer than others. However, a modern steel column radiator (in the same size) can provide higher output than a cast iron one.