OEM Lennox Gas Valve — 17H20

The genuine OEM Lennox 17H20 gas valve regulates the supply of gas to your furnace burner assembly, coordinating with the ignition control to open and close on demand for safe, consistent heating. Built to Lennox factory specifications, it is calibrated to the correct manifold pressure and gas type so your furnace fires cleanly and operates at rated efficiency.

When a gas valve begins to fail, homeowners often notice the furnace attempting to ignite without the main burners lighting, delayed or rough ignition, audible clicking without gas flow, short cycling, or a total no-heat condition. These issues typically point to a valve that is no longer opening reliably or holding proper pressure and should be resolved without delay.

Installing an OEM Lennox 17H20 is important because the gas valve is a safety-listed component precisely matched to your furnace's control system, orifice sizing, and fuel type. Generic replacements can introduce combustion problems or fail to interface correctly with the board. This factory-direct part ensures an exact fit, full safety compliance, and long-term dependability for your Lennox system. In stock and ships same day before 3PM CST.