Lochinvar & A.O. Smith 100109251 Burner Assembly 318973-401 it maintains full backward compatibility

it maintains full backward compatibility while offering an improved 80mm x 80mm enclosure profile

which includes compatibility with natural gas

Engineered with a 24V coil and a 25 Amp inductive rating

making it suitable for 100 psig saturated steam and high-temperature hydronic systems

Maintaining clear electrical paths in commercial and residential systems requires a technician-grade component like the York 024-31642-000 3-Pole Contactor

Lochinvar & A.O. Smith 100109251 Burner Assembly 318973-401 it maintains full backward compatibilityThe Lochinvar & A. O. Smith 100109251 Burner Assembly is a precision engineered Natural Gas (NG) replacement component designed for Flammable Vapor Ignition Resistant (FVIR) water heaters. This high efficiency final burner assembly features a #36 orifice and is critical for maintaining the stoichiometric balance required for clean combustion and optimal thermal transfer in residential and commercial units. As a veteran grade OEM part, it ensures