The York S1-025-35354-000 Flame Sensor is a critical safety component designed for precise flame rectified signal monitoring in high-efficiency gas furnaces

contaminated combustion air

ensuring compliance across various commercial and residential applications

Compatible with 370V systems

Direct OEM Compatibility: Serves as the identical replacement for Lennox 78L2901

Armstrong Furnace ALPKT516-4 Conversion Kit Els PW 17895 The York S1-025-35354-000 Flame SensorThe Armstrong Furnace ALPKT516 4 LP Conversion Kit is a critical OEM component designed for technicians converting Armstrong Air 80% and 90% AFUE furnaces from natural gas to liquid propane. This kit serves as the direct replacement for ALPKT516 1 and ALPKT516 5, ensuring a precise match to manufacturer specifications for manifold pressure and orifice sizing. By utilizing genuine Armstrong Air parts, contractors can maintain the internal combustion