OEM Lennox Combustion Head Cone End 1.20 GPH — 36K43
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The genuine OEM Lennox 36K43 combustion head cone end is a precision oil-burner component rated for a 1.20 GPH firing rate. The combustion head shapes and directs the fuel-air mixture as it leaves the nozzle, creating the turbulence and flame retention pattern needed for clean, complete combustion in your Lennox oil-fired appliance. Its geometry is matched to the specified nozzle flow rate for stable ignition and efficient heat release.
Symptoms of a worn or fouled combustion head include sooting, delayed or rough ignition, pulsation or rumbling during firing, smoky exhaust, and reduced efficiency. Carbon buildup and heat erosion gradually distort the cone, degrading the flame and raising fuel consumption.
OEM matters here because the 36K43 is engineered to Lennox specifications for the 1.20 GPH rating. Using the correct factory head ensures proper flame retention, clean combustion, and compliance with your burner's designed firing performance. Verify the GPH rating matches your existing setup before installing.
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- 30-day returns on unused parts in original packaging
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