The Lochinvar & A.O. Smith PLT2702K Hot Surface Igniter, also known as 100208364 SIC RC100, is a replacement ignition component designed for gas-fired heating equipment. It uses an electrically heated ceramic element to reach a high temperature and ignite the burner gas, providing dependable and consistent startup without a traditional pilot flame. This igniter is used in compatible L... https://www.partshnc.com/plt2702k-lochinvar-ao-smith-plt2702-igniter-hot-surface-100208364-sic-rc100