In normal ambient conditions (above 45°F and below 55°F)

Universal Compatibility: Directly replaces Honeywell VR8305P4337

Full Port Design: The 3/4" NPT internal diameter ensures maximum flow capacity and high Cv ratings for efficient fluid transfer

Depending on the specific Lennox control board

rectangular design allows for precise placement in restricted unit heater housings

Lochinvar & A.O. Smith 100111336 Burner Assembly 321894-708 In normal ambient conditions (aboveThe Lochinvar & A. O. Smith 100111336 Burner Assembly is a critical OEM replacement part engineered for high recovery natural gas water heaters. This NAT 16 inch burner assembly features a precision drilled #37 orifice, ensuring calibrated gas flow and optimal BTU output for consistent combustion. Designed specifically for Series 200 and 201 units, it integrates seamlessly with Hot Surface Ignition (HSI) control valves, providing a reliable spark for