Lennox 18G90 Pilot Assembly Els PW 17895 Dryseal Threads: Features long NPT

Dryseal Threads: Features long NPT threads to minimize the risk of leakage and simplify HVAC fitting installation

large exhaust fans can also create negative pressure that pulls flue gases out of the draft hood and onto the vent safety switch

blocked secondary heat exchanger

Unlike standard residential switches

Lennox 18G90 Pilot Assembly Els PW 17895 Dryseal Threads: Features long NPTThe Lennox 18G90 Pilot Assembly is a high performance OEM replacement engineered for precise ignition control in natural gas furnace systems. Designed for demanding residential and commercial HVAC applications, this pilot burner with electrode features a factory calibrated 0. 018 inch orifice to ensure a stable and consistent flame pattern for efficient combustion. This assembly is a critical component for technicians addressing ignition failure or