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The Goodman 10716005 Natural Gas Orifice is a genuine OEM burner spud for AMEC800805CNAB gas furnaces. The orifice threads into the manifold and meters the precise volume of natural gas delivered to each in-shot burner, setting the firing rate for the furnace. A damaged, corroded, or incorrectly drilled orifice throws off the air-fuel ratio, leading to sooting, poor efficiency, or lifting flames. Replacing with the factory-spec orifice restores a clean, correctly sized flame.
This OEM Goodman orifice is drilled to the exact diameter your furnace's rated input and altitude require. Generic or mis-marked orifices with a slightly larger or smaller bore change the BTU input and can create unsafe combustion. Because orifice sizing directly affects safety and efficiency, the OEM part is strongly recommended.
Moderate. Shut off gas and power, then unthread the old orifice from the manifold with the correct wrench and thread in the replacement — do not over-tighten the brass. This is a gas-carrying joint, so a leak check with soap solution and a flame/combustion verification are required after installation. If you are not comfortable working on the gas manifold, use a licensed HVAC technician.