The high-performance thermoplastic construction ensures robust dielectric strength in harsh HVACR and process environments

A manual reset is required by cycling the thermostat or the 24V power supply

ideal for heavy-duty commercial boiler applications

Durable Construction: Housed in a lockable Type 1 steel enclosure with 180-degree swing-open door for easy terminal access

The LED provides real-time feedback on system status

Lochinvar & A.O. Smith 100111335 Burner Assembly 321142-301 The high-performance thermoplastic construction ensuresThe Lochinvar and A. O. Smith 100111335 Burner Assembly is a critical OEM replacement component designed for high efficiency commercial water heaters and boilers. This 18 inch natural gas burner assembly features a precision machined #37 orifice, ensuring calibrated BTU input and consistent flame patterns required for optimal thermal heat exchange. Engineered for high output water heater repair, this assembly addresses common combustion issues such as