Honeycomb PTC Air heating elements can be configured into three, four, or five disc configurations that produce up to 2000 watts of heat output. Standard sizes are up to 6 inches diameter. Other OEM configurations are possible depending on customer applications. All PTC holders consist of high temperature PPS plastic, stainless steel contacts and silver coating for optimum conductivity. PTC Heater assemblies can be configured with various size cooling fans and blowers to provide powerful, safe, and compact air heating systems that can be used in a variety of applications.