A furnace ignitor is a small electrical component that is responsible for generating a spark that ignites the gas burners in a furnace. Furnace Ignitor parts are usually made of silicon carbide or other heat-resistant material and are subjected to high temperatures during operation. For an efficient and reliable HVAC system, that Thermal Coupling Boiler is a great choice for optim... https://www.partshnc.com/furnace-parts/thermocouple