The Williamson-Thermoflo 381-330-016WT LP Gas Ignition Control Board is an essential heating system component designed to manage and regulate the ignition sequence in compatible propane gas-fired boilers. It coordinates the burner ignition process by controlling the electrical signals that activate the ignition system and gas valve, helping ensure safe and consistent combustion. Used ... https://www.partshnc.com/381-330-016wt-williamson-thermoflo-lp-gas-ignition-control-board