Lochinvar PLT3021 Heating Boiler IgniterLochinvar PLT3021 Heating Boiler Igniter is a reliable replacement boiler igniter engineered for Knight XL boilers. This used on item is compatible with KBN400 and KBN501 Knight XL models and includes a gasket for a secure seal. Designed as a direct replacement, the PLT3021 igniter helps ensure a consistent ignition sequence and efficient combustion in your Lochinvar heating system. Because it is a used component, it offers a cost effective option for

it features a 1-1/4 inch base for secure mounting

the VS-528 features a 2-inch tank opening and a 2-inch vent pipe

delivering consistent performance across demanding applications

while inlet pressure settings of 2/5/10 PSI (65 PSI emergency exposure) cover typical service needs

Final-type burner assembly delivers reliable ignition and a steady flame

Engineered for compatibility with the M7RL 1-Stage Condensing Downflow Gas Furnace

it provides clean sampling media that minimizes interference and helps technicians interpret results accurately

Choose the 1960-027 thermocouple when you need dependable sensing in oxygen-managed systems

Temperature range: -40 to 175 °F

and configured for a 24V AC power supply

helping your system reach target temperatures quickly while reducing stress on the furnace motor

and other heating equipment