A single panel radiator consists of one panel of metal covering a heating system. This is opposed to column radiators, whereby a panel has only one sheet of metal and makes the most of its larger surface area with it’s hollowed out interior. This hollowed out interior allows hot water to circulate through the system, radiating heat through the conductive metal. With a wide range of materials and shapes to the single panel radiator, it has proven to be one of the most diverse units on the market today.