A range has burner coil elements which have temperature switches as a portion of the replaceable coils. Upon reaching a predetermined temperature, the switch opens and power through the burner element is secured. The burner elements are preferably open coil units. Lowering the temperature in a cooking utensil below common ignition temperatures while still allowing boiling is an objective of many embodiments.

A heating element for a cooking appliance includes terminals that act as electrically conductive contact points. One or more buses are arranged between the terminals, and connect one or more heating element segments in a zig-zag configuration. The heating element segments are connected in series and are arranged parallel with one another. Each heating element segment includes a plurality of cutouts linked together and having an elliptical shape. The terminals, heating element segments, and buses are a continuous single sheet of conductive material. A method of making the heating element includes forming a pattern into the sheet of conductive material by etching the pattern into the conductive sheet using photolithography.

A drum heater assembly includes an inner body defining a cylindrical interior space shaped to receive a drum containing a material in the drum, and an elongated heating panels coupled to exterior surfaces of the inner body. The heating panels include heating elements configured to generate heat toward the interior space. The drum heater assembly also includes outer doors coupled with the heating panels such that the heating panels are disposed between the outer doors and the inner body. The inner body is configured to open to remove the drum and insert another drum into the interior space for heating by the heating panels.

An oven appliance, as provided herein, may include a cabinet, a ventilation fan, a sensor enclosure, a humidity sensor, and a sensor fan. The cabinet may define a cooking chamber and an oven vent downstream therefrom to direct an exhaust flow from the cooking chamber. The ventilation fan may be mounted to the cabinet downstream from the oven vent. The sensor enclosure may be mounted to the cabinet outside of the cooking chamber. The sensor enclosure may define an enclosed volume. The sensor enclosure may further define an active flow entrance and an active flow exit in fluid communication with the enclosed volume. The humidity sensor may be disposed within the enclosed volume. The sensor fan may be attached to the cabinet outside of the cooking chamber and upstream from the ventilation fan.

Provided is a cooker which has a frame forming a side plate, which can be easily manufactured and can reduce manufacturing cost. The cooker includes a cooktop assembly for cooking and directly heating a container in which food is accommodated. The cooktop assembly includes a side plate having at least two frames coupled to each other, and a top plate located at an upper portion of the side plate.

A cooking device and a control method thereof is provided which heating a curved area to a higher temperature than a flat area of a cooking area where food is cooked. A cooking apparatus includes a cooking unit having one side in which a first cooking region and a second cooking region distinguished from the first cooking region are provided; a heating unit configured to heat the cooking unit; and a controller configured to control the heating unit to heat the first cooking region to a first temperature and to heat the second cooking region to a second temperature different from the first temperature.

A heater device includes a first detection pattern that is arranged on an insulating substrate and detects a change in capacitance between a first transmitting electrode and a first receiving electrode for detecting an object, a second detection pattern that is arranged on the insulating substrate and detects the change in capacitance between a second transmitting electrode and a second receiving electrode for detecting the object, a capacitance determination unit that determines whether one of the change in capacitance between the first transmitting electrode and the first receiving electrode and the change in capacitance between the second transmitting electrode and the second receiving electrode is equal to or higher than a first threshold value and the other is lower than a second threshold value, and a disconnection determination unit that determines a disconnection in the first or the second detection pattern, when result of the capacitance determination unit is positive.

A method for the operation of a radiant heating device for a cooktop, which device comprises two separately operable heating elements that are arranged in loops on a carrier and that are individually connectable to a power supply, and comprises a heat maintenance mode, a cooking mode and a boost mode. In the heat maintenance mode, only one heating element, with a single, fixed, relatively low heat maintenance power, is operated. In the cooking mode a different element is operated with adjustable power, and is adjusted between a relatively low minimum cooking power and a relatively high maximum cooking power. In the boost mode, all the heating elements of the radiant heating device are operated, wherein the power of all the heating elements is fixed and not adjustable. The heating element operated in the cooking mode is operated with its maximum power of the cooking mode, and the heating element that is not operated in cooking mode is operated with a power above the heat maintenance power of the heat maintenance mode.

The heater device is provided with a heater main body, and radiates radiant heat from the heater main body toward an object. The heater main body includes a sheet-like heat generating layer that generates heat and radiates the radiant heat, and a sheet-like heat insulating layer that is disposed on the side opposite to the object of the heat generating layer. The heat insulating layer has a sheet-like first layer having voids and a sheet-like second layer having voids arranged side by side in a thickness direction of the heat insulating layer with respect to the first layer. A porosity of the second layer is higher than that of the first layer.

Embodiments of the disclosure are drawn to apparatuses for electric radiant heaters. An electric radiant heater may include a cavity with a radiant heating element on an inner surface of the cavity. Electric radiant heat generated by the radiant heating element may be output through an aperture of the cavity. The inner surface of the cavity may have a greater surface area than an area of the aperture. The radiant heating element may be arranged in a helical pattern in some examples. In some examples, the electric radiant heater may be arranged with a lens for directing heat from the radiant heating element to a location outside the cavity.