This heat exchanger is primarily used in Lennox GCS16-953

Durable Construction: Built for continuous outdoor duty to withstand seasonal temperature extremes

Engineered for technicians who prioritize reliability

Using AC internal components in a DC circuit can lead to plunger travel issues and potential coil overheating due to different spring tensions

This surface mount water heater control features easy-access screw terminals for clean field wiring and a secure clamp-to-tank design that ensures accurate thermal sensing

Fenwal 35-725206-515 Control 319852-301 This heat exchanger is primarilyThe Fenwal 35 725206 515 is a professional grade 120Vac Direct Spark Ignition (DSI) control engineered for precision timing and flame monitoring in gas fired heating equipment. Designed as a microprocessor based ignition module, this unit manages the gas valve, monitors the flame sense, and provides 100% lockout safety in the event of an ignition failure. The potted design is essential for contractors working on commercial or industrial equipment