Cylindrical ceramic fiber heaters consist of an iron-chrome-aluminum (ICA) heating element and a thick layer of ceramic fiber insulation within a cylinder-shaped housing. The ceramic fiber insulation isolates the heating chamber from outside temperatures, allowing the heater to reach process temperatures quickly. Because they are light-weight, cylindrical ceramic fiber heaters are easy to install and replace. Their high temperature capability, low thermal mass, and ease of modification allow them to solve difficult heating problems. For example, cylindrical ceramic fiber heaters are used in complex piping. The numerous notches around pipes, flanges, and gussets can be molded into the heater, or cut to fit.