Which igniter operates without generating noise during the ignition process?

The hot surface igniter operates silently during the ignition process, which is its defining advantage. This type of igniter consists of a ceramic or metal element that heats up when an electrical current passes through it. After reaching a certain temperature, it ignites the gas when it flows over the heated element, resulting in ignition without any audible sounds or sparking.

This silent operation makes the hot surface igniter an attractive choice for gas appliances, especially residential appliances where noise can be a concern. Unlike developments like spark igniters, which create electrical sparks and may produce noise during their operation, the hot surface igniter's smooth and quiet ignition process enhances user comfort and appliance aesthetics. Additionally, its ability to provide reliable ignition without the need for moving parts contributes to its popularity and effectiveness in modern gas systems.