The Trane IGN0152 Ignitor Nitrate 120V is a hot-surface ignitor used in gas furnaces and other HVAC heating systems. It works by heating a silicon-nitride element to a high temperature using 120 V power; when it glows, the fuel (gas) flowing into the burners ignites, starting the combustion process. Visit The Website: https://www.partshnc.com/ignitor-nitrate-120v-5 https://www.partshnc.com/ignitor-nitrate-120v-5