In an OTG (Oven, Toaster, Griller) oven, the heating element is typically made from one of the following materials:
Nichrome (Nickel-Chromium): Nichrome is one of the most commonly used materials for heating elements in OTG ovens. It is an alloy composed of nickel and chromium, which makes it resistant to high temperatures and provides good electrical conductivity. Nichrome heating elements are durable and can withstand repeated heating and cooling cycles without significant degradation.
Kanthal (Iron-Chromium-Aluminum): Kanthal is another popular material used for heating elements in ovens. It is an alloy of iron, chromium, and aluminum, designed to withstand high temperatures and resist oxidation. Kanthal heating elements are known for their long lifespan and efficient heat distribution.
Incoloy (Nickel-Iron-Chromium): Incoloy is a robust and corrosion-resistant alloy often used in industrial and heavy-duty ovens. It contains nickel, iron, and chromium, providing excellent resistance to heat, oxidation, and scaling.
These materials are chosen for their ability to generate and maintain high temperatures without melting or deforming. They also have good electrical resistance, which allows them to convert electrical energy into heat efficiently.
It's worth noting that the specific type of heating element used in an OTG oven can vary depending on the manufacturer and the model. Some ovens may have multiple heating elements, such as top and bottom elements, to facilitate different cooking functions. Regardless of the material used, it's essential to follow the manufacturer's instructions and guidelines for proper usage and maintenance of the oven's heating elements to ensure their longevity and safety.