What is the original material used in hot surface igniters?

The original material used in hot surface igniters is silicon carbide. This material is highly valued for its ability to withstand high temperatures and its durability, making it ideal for use in igniting gas burners in various commercial cooking equipment. Silicon carbide has excellent thermal conductivity, allowing it to reach the necessary temperatures quickly to ignite gas. Its resistance to oxidation and thermal shock also contributes to its longevity and effectiveness in high-heat environments.

Ceramic, while used in some igniter designs, does not possess the same level of thermal conductivity and responsiveness as silicon carbide, leading to slower ignition times. Aluminum is not suitable for this application due to its lower melting point and lack of durability under high temperatures. Similarly, carbon fiber does not have the necessary thermal properties or stability for use in igniters, as it is primarily used in applications requiring lightweight materials and strength, rather than high-temperature ignition.