Radiant electric heaters incorporating microporous thermal insulating.

摘要

A radiant electric heater comprises a support (31) which bears a layer (32) of microporous thermal insulation material such as that sold under the registered trade mark "Microtherm". A heat transmissive cover (45) is spaced from the layer (32) by a peripheral wall (34). Heating elements (43,44) are positioned within an area defined by the peripheral wall and are coiled around a plurality of quartz tubes (35-42).

The quartz rods (35-42) are urged against the layer (32) of microporous thermal insulation material by the cover (45) by way of the peripheral wall (34).