Radiator Group Standard: According to TS 4311 DIN 4703 Casting Radiator. Sliced Steel Radiator. Panel Radiator. Slab Type Steel Radiator. Aluminum Radiator. Electric Oil Radiator. Categories: Cast Iron Radiators, Panel Radiators, Radiator Montage Kits, Radiators Description Description A radiator is a heating device that heats up by burning a fuel oil or transmitting the heat it receives from a hot fluid. It consists of sliced pipes made of cast iron, steel or aluminum.