Heating apparatus

Details Heating apparatus Heating apparatus

H - Electricity

05

B

309/78, 309/86

H05B 3/74 (2006.01)

Patent

CA 1250879

ABSTRACT OF THE DISCLOSURE A heating unit suitable for mounting in a cooking hob consists of a circular tray having a layer of thermally-insulative material disposed therein and a peripheral thermally-insulative wall, within which four infra-red lamps, each containing a tungsten filament, are supported. The tray also includes an inner thermally-insulative wall, which encloses the length of each filament. Between the peripheral and inner walls, two conventional, wire-wound heating elements are disposed. The filaments and the elements are energisable independently and/or concurrently, and series and/or parallel combinations of the filaments and the elements may be switched to provide various discrete power outputs.

481412

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