OEM Lennox Oil Burner — 17A27

The genuine OEM Lennox 17A27 oil burner drives combustion in your Lennox oil-fired furnace, atomizing fuel oil and igniting it into the stable, efficient flame that heats your home. Built to Lennox factory specifications, it ensures reliable ignition, proper air-to-fuel mixing, and the rated efficiency your furnace was engineered to deliver.

As an oil burner wears, the symptoms become obvious: hard or delayed starts, frequent lockouts on the primary control, smoky or sooty exhaust, a rumbling or pulsating flame, oil odors around the appliance, and rising fuel costs. A failing burner can also cause short-cycling or leave the furnace unable to reach the thermostat setpoint during cold spells.

OEM quality protects your Lennox investment. The 17A27 is manufactured to the exact mounting, electrical, and flame specifications Lennox validated for your furnace, ensuring correct fit and safe operation with the factory primary control and cad cell sensor. Generic replacements can throw off combustion tuning, trigger nuisance lockouts, and jeopardize warranty coverage. Choose the burner Lennox specified for clean, efficient, dependable heat.