the LH33WZ017 should be replaced if the ceramic insulator is cracked or if the metal rod shows significant pitting

meeting strict safety and efficiency standards for high-output condensing and non-condensing heaters

the 2744-668 serves as a direct cross-reference for numerous OEM field replacements

Why is my pilot failing to stay lit

Environmental Protection: The NEMA 4X rated housing ensures protection against harsh wash-down environments and corrosion

Lennox 83L23 Gasket 320819-301 the LH33WZ017 should be replacedThe Lennox 83L23 Collector Box Gasket is a critical OEM replacement component engineered for high efficiency Lennox G24 and G32 series furnaces. This furnace collector box seal provides a high temperature resistant interface between the collector box and the heat exchanger, ensuring a pressurized, airtight seal essential for proper venting and combustion. Over time, original gaskets can degrade due to thermal cycling, leading to pressure switch faults