Elstein FSF panel heaters, are ceramic infrared heaters with a low overall height. They are produced using a full-pour casting ceramic process and are designed for operating temperatures up to 750 °C and surface ratings up to 64 kW/ m². Compared to other Elstein panel heaters, the overall height of the FSF heaters, measured from the radiation surface up to the mounting plate, has been reduced by approximately 45%. FSF Series heaters can be used universally. The low overall height of the heaters enables space-saving installation, for example, which may be required to retrofit machines. FSF heaters are available in four designs and cover the power range from 60 W to 1000 W. Elstein FSF panel heaters have the customary market dimensions and can therefore be replaced with radiators with corresponding properties if the requirements change.