For contractors performing retrofits or repairs

resisting material fatigue from constant pressure modulation

Featuring a 35-second cycle time

Using an old or out-of-tolerance capacitor can lead to overheating and reduced service life

Lennox 35K71 Combustion Chamber 30067439-890 For contractors performing retrofits orThe Lennox 35K71 Combustion Chamber is a critical OEM replacement part engineered for high performance Lennox gas fired furnaces. Designed to manage the intense thermal demands of the heat exchange process, this chamber provides a precisely enclosed environment where natural gas combustion occurs. Fabricated from high grade, heat resistant materials, the 35K71 ensures optimal air fuel mixing, which directly correlates to reduced emissions and