A method for constructing a heating element for a domestic recirculating fan oven has flat annular formers and circular metallic heater tracks stacked in a laminated form

摘要

The electrically insulated annular formers (18) have thin metallic heater tracks (20) with an opening for connections and an assembly hole (38) to enable multiple heaters (12) to be stacked. The recirculation fan has an axis (16) which is also the centre of the annulus.