Abstract: An electric baseboard heater includes a ceramic glass block within which a steel wire electric heating element is insert molded. The ceramic glass block is mounted in a heater housing which includes a lower draft opening below the ceramic glass block and an upper air outlet above the ceramic glass block. When a voltage is applied to the steel wire, heat is generated by the wire and is absorbed and radiated by the ceramic glass block. Cool air is drawn into the draft opening in the housing and up past the ceramic glass block whereupon it exits the air outlet heated by the ceramic glass block. The heater is efficient because the ceramic glass heats very quickly and continues to radiate heat for a period of time after the voltage is removed from the steel wire. It is safe because the hot electric heating element is contained within the ceramic glass where it cannot contact flammable items.

Abstract: An electric baseboard heater includes a ceramic glass block within which a steel wire electric heating element is insert molded and which is provided with several through holes for convective movement of air through the block. The ceramic glass block is mounted in a heater housing which includes a lower draft opening below the ceramic glass block and an upper air outlet above the ceramic glass block. The glass block is preferably mounted so that one of its faces is exposed by the housing. When a voltage is applied to the steel wire, heat is generated by the wire and is absorbed and radiated by the ceramic glass block. Cool air is drawn into the draft opening in the housing and up through the through holes in the ceramic glass block whereupon it exits the air outlet heated by the ceramic glass block. The ceramic glass block is advantageously mounted at an angle in the housing to provide an aesthetically pleasing appearance while at the same time increasing the convective movement of air through the heater.