Lennox 25W89 Burner Cover Refrigerant Standard practice is to replace

Standard practice is to replace the heating element gasket (GKT2513 or equivalent) during any element swap to prevent high-pressure leaks once the system is pressurized

Key Benefits: High Flow Capacity: A 13 Cv flow factor ensures minimal pressure drop across 1-inch NPT lines

Optimized ignition control sequences improve system reliability and reduce nuisance lockouts

or specific fault codes on the control board indicating a thermistor short or open circuit

This 8210 Series ASCO valve is a standard choice for contractors requiring a high-voltage AC solenoid that maintains tight shut-off and consistent cycle life

Lennox 25W89 Burner Cover Refrigerant Standard practice is to replaceThe Lennox 25W89 Burner Cover (also identified by manufacturer reference LB 109746) is a high grade OEM replacement part engineered for Lennox residential and light commercial gas furnaces. Fabricated from high temperature resistant metal alloy, this furnace burner cap is critical for maintaining flame characteristics and ensuring clean combustion. Its precise design prevents flame rollout and air leakage, which directly optimizes combustion