Lennox 14X42 Burner Assembly 321894-708 though you must always refer

though you must always refer to the included technical wiring and manifold diagram for your specific serial range

Designed with a multi-mount installation footprint

What symptom does this part solve

The Single Pole Double Throw (SPDT) action allows the controller to break one circuit while making another on temperature rise

Lennox 14X42 Burner Assembly 321894-708 though you must always referWhen you're dealing with burner issues in residential heating systems, the Lennox 14X42 Burner Assembly is the direct OEM replacement engineered for precise combustion and reliable thermal transfer. This assembly, often cross referenced as Part ID 1497557 or 104910 03, is a critical component for maintaining the fuel to air ratio required for peak furnace efficiency. As a veteran tech knows, a degraded burner leads to poor ignition, sooting, and