The Laars Heating Systems E2313900 Ignition Control Module is a reliable 24V component designed to manage safe and efficient ignition in Laars boilers and water heaters. Featuring a 3-second trial and 4-second TFI, it controls the ignition sequence, monitors flame presence, and ensures proper burner operation. https://www.partshnc.com/24v-ignition-module3try-4stfi-2