the orifice and valve seat are likely wire-drawn or fouled

The Lennox 45L14 LP Gas Burner Orifice is the direct performance-grade replacement for the legacy LB-94569 model

making it an ideal stock item for repairing Lennox G8

Using it on other series may lead to mounting issues or improper stroke transfer

Lennox 33M70 Inducer Assembly Freon the orifice and valve seatThe Lennox 33M70 Inducer Assembly is a high performance OEM replacement part engineered for draft induction in specific gas fired heating systems. Operating at 208 230V and 60Hz, this combustion air blower kit features a 1 20 HP motor rated for 3000 RPM. The assembly utilizes a Fasco U21B motor (Model 702111231) with a sealed ball bearing design and counterclockwise rotation (shaft end) to ensure consistent airflow and optimal static pressure in