Is this model compatible with external sensors

This OEM heater assembly provides reliable supplemental heat or primary heating in electric-only configurations

ensuring precise seating and stroke alignment

Smith 100304989 Ignitor is a critical OEM replacement part engineered for high-output commercial boiler ignition

Lennox 21V12 Gas Valve 321142-301 Is this model compatible withThe Lennox 21V12 Gas Valve is a critical regulatory component engineered for high performance gas flow control in residential and commercial heating systems. This 24V slow open gas valve, often cross referenced as Lennox 105155 05 or White Rodgers 36G24 229, features a 1 2 inch NPT inlet and outlet for standard piping compatibility. Designed with high temperature resistance and a robust actuator, it ensures stable and precise natural gas regulation