This burner, from Miniature Steam, has a spun brass body with a cast ceramic insert that has been specifically designed to provide optimum burning characteristics in enclosed spaces such as the centre flue or firebox of a boiler. They are entirely different to inferior ceramic burners made from heating tiles designed for radiant room heaters! The gas/air mixture of the Miniature Steam ceramic burner burns outside the ceramic insert. This results in a more efficient transfer of heat to the boiler’s heating surface. The burner also remains relatively cool, thus improving the thermal efficiency of the burner & minimising the chance of back burning. Manufacturer: Jotika Model / Part No: 1-1/4' Ceramic Burner (MS5092)