The Avantco 400043 Thermopile helps support reliable gas burner operation by generating the electrical power needed for compatible pilot-operated control systems. This 24-inch thermopile features a two-lead design and converts heat from the pilot flame into a small electrical voltage. The generated voltage can help operate the gas valve, allowing gas to flow to the burner when the req... https://partsfe.ca/400043-avantco-thermopile-24-2-lead-thermopile/2-400043.html