A heat modulating system includes a heat source, a temperature sensor proximate the heat source, and a controller in connection with the temperature sensor and the heat source. The controller modulates a rate of temperature increase of the heat source based on temperature detected by the temperature sensor, and at a temperature set point detected by the temperature sensor the controller modulates power to the heat source to help to prevent unintended autoignition of cooking oil.

A glass-ceramic cooking apparatus and a method relating to temperature limiting control of the glass heating area for preventing cooking oil ignition is disclosed. The apparatus comprises at least one glass surface, at least one heat source under the glass to create a heating area on the glass, one temperature sensor and one control unit for each heat source, wherein the sensor measures the temperature on the underside the glass heating area, and the control unit is electrically connected with the heat source, compares the measured glass temperature with predetermined upper and lower temperature limits that are based on a corresponding relationship between the heating area temperature and the cooking oil temperature within the cooking vessel, and then reduces or increases the output power of the heating source, so that the maximum temperature of the cooking oil in the cooking vessel can be limited in a range that is below the cooking oil ignition point while a minimum temperature can still be maintained for a desired cooking performance.

A cooking system includes an operator interface configured to enable input of an identification characteristic for a placement unit for placement on a cooking surface for purpose of a heating operation, and a control unit configured to release or block a cooking function for the placement unit as a function of the identification characteristic input via the operator interface.

A cooking device includes a light unit and an insulation unit configured to electrically insulate the light unit. The insulation unit includes a first insulation element and a second insulation element, with the light unit being at least partially arranged between the first insulation element and the second insulation element.

A display device in particular for cooktops is provide that has a glass ceramic with a front side and a back side and a lamp arranged in the area of the back side. The display device further includes an optical compensation filter arranged between the front side and the lamp so as to implement any color impressions easily and inexpensively and in a preselectable manner.

A magnetic stirrer (11) comprises a magnetic drive and a placement surface (17) for a laboratory vessel containing a substance to be stirred. The magnetic drive is designed to generate a magnetic field which varies such that a magnetic stirring element can be driven to produce a stirring motion in the laboratory vessel, in order to stir the substance. The magnetic stirrer (11) also comprises a heating device (15), which is designed to heat the placement surface in order to heat up the substance, and a display device (23), which is designed to display the current temperature of the placement surface.

The invention is a heating and display mirror. The mirror is composed of two different zones, one for heating and one for display. The heating zone is heated by radiant heat, and the display zone features a display device that produces lighted images visible on the mirror's surface. The heating and display zones are operated by user controls, which give instructions to the heating zone to turn on and off, and to the display zone regarding what images to display on the lighted display device.

A radiant heating device for a hob has a sheet-like carrier with a carrier surface on its top side on which an electrical heating element runs in a meandering manner within an outer edge. A single temperature sensor is arranged in a temperature sensor housing which is arranged above a region which is free of heating elements. The temperature sensor housing covers the temperature sensor at the top and to the side and encloses the said temperature sensor in all directions. The temperature sensor housing is designed so as to be electrically insulating and thermally insulating at least at the top and to the side, wherein the said temperature sensor housing consists of an inner electrically insulating insulation housing part with the temperature sensor therein and an outer surrounding thermally insulating insulation housing part.

A surface heater including a substrate, an insulating layer positioned on the substrate, and a heater layer positioned on the insulating layer, wherein the insulating layer and the heating layer are co-fired.

A temperature sensor assembly for a cooktop appliance can include a plate with a cylindrically-shaped boss, one or more seals located in one or more grooves of the plate, a grommet disk engaged with the bottom surface of the plate, and a cylindrically-shaped grommet in which a cap for a temperature sensor is positioned and is slidable therein.