What component located on a combination gas valve is responsible for ignition?

The component on a combination gas valve that is responsible for ignition is the igniter. The igniter plays a crucial role in the operation of gas appliances by producing a spark or heat that initiates the combustion process. When the gas valve opens and gas is released, the igniter generates the necessary energy to ignite the gas, allowing the appliance to operate safely and effectively.

In the context of gas appliances, the igniter is vital for ensuring a reliable ignition every time the appliance is turned on. With the advancement of technology, some igniters use electric arcs while others may use hot surfaces to ignite the gas. Regardless of the method used, the core function remains the same: to create a flame that ignites the gas.

The other components mentioned serve different purposes. The pressure regulator controls and maintains the proper gas pressure for safe appliance operation, the orifice regulates the gas flow into the burner, and the thermostat is responsible for temperature control but does not directly assist in the ignition of the gas. Understanding the distinct functions of each component emphasizes the importance of the igniter in the ignition process within gas systems.