OEM Lennox Oil Burner — 17A26

The genuine OEM Lennox 17A26 oil burner is the core combustion component of your Lennox oil-fired furnace, atomizing and igniting fuel oil to produce the clean, controlled flame that warms your home. Made to Lennox factory specifications, it provides dependable startup, correct air-to-fuel mixing, and the combustion efficiency your system was designed to achieve.

A burner nearing the end of its life tends to show clear warning signs: hard or repeated failed starts, safety lockouts on the primary control, smoky or sooty flue exhaust, a noisy or unstable flame, oil odors, and steadily increasing heating bills. Ignoring these issues can lead to short-cycling, incomplete combustion, and poor heat output on the coldest days.

OEM matters with Lennox equipment. The 17A26 matches the exact mounting, electrical, and flame characteristics Lennox validated for your furnace, ensuring a precise fit and safe integration with the factory controls. Off-brand burners can compromise combustion tuning, cause nuisance lockouts, and void warranty protection. Install the burner Lennox specified to restore efficient, reliable, worry-free heating.