The Armstrong Furnace R43127-001 Flame Sensor is a critical OEM replacement part designed for precision flame rectification in residential heating systems

When should I replace my Hankison grade 9 filter

For specialized setups

it is compatible with many Coleman and Luxaire units that utilize part S1-025-29759-001 or 025-29759-001

Integrated LP Conversion: Comes standard with a liquid propane kit to simplify job site transitions from NG to LP

Lochinvar & A.O. Smith 100093802 Door Assembly 322055-301 The Armstrong Furnace R43127-001 FlameThe Lochinvar & A. O. Smith 100093802 Door Assembly is a specialized natural gas manifold replacement engineered specifically for technical repair of Flammable Vapor Ignition Resistant (FVIR) burner systems. As a critical component in the combustion chamber assembly, this NG manifold door ensures a hermetic seal against the water heater tank, maintaining the integrity of the Flame Guard B system. The assembly features a resettable door switch (thermal