What are the radiant emission patterns of ceramic emitters?
The question often arises about the different shapes of ceramic heaters. Salamander ceramic heaters are manufactured with three basic emitter faces: convex as in the ESE, concave as in the FTE, HTE, and LTE, and flat as in the FFE, HFE and HSE. These different shapes create three different emission patterns. Radiant energy is emitted from all objects at different levels of intensity. This energy comes off all surfaces at true right angles. The convex shape gives off a “wide area” pattern which is desired in comfort heating or other applications that require dispersed heating. A concave surface will emit a “concentrated” pattern which is highly effective when zone heating is desired as well as radiant heating in general. The flat surface will produce a “uniform” pattern for even heating at a close proximity between the emitter and the material to be heated. Examples of this are sheets of plastic or curing of surfaces. When dealing with new applications the emission pattern needed is usu
