Which wire should be used for a pizza oven operating at 650 degrees?

For a pizza oven operating at a high temperature of 650 degrees, the most suitable wire type is MGS wire. This wire is specifically designed to handle elevated temperatures, making it ideal for applications in high-heat environments like cooking equipment. MGS wire is constructed to withstand the thermal and mechanical stresses typically experienced around high-temperature appliances.

In contrast, THHN wire is rated for a maximum temperature of 90 degrees Celsius and is not suitable for high-heat applications. MTW wire is typically used for machine tool wiring and is not rated for the high temperatures required in a pizza oven. SJO wire, while flexible and suited for general purpose, also does not have the temperature rating needed for environments exceeding regular operating temperatures. Thus, MGS wire is clearly the correct choice for maintaining safety and ensuring functionality in a high-temperature setting.