The Resideo R7284U1004 Multi-System Electronic Oil Primary Control is a versatile device for controlling oil-fired burners in hydronic and forced air systems. It ensures secure and effective ignition, observing, and closure of the burner, hence improving overall system reliability. With dimensions of 2.5"x 4.16"x 4.34", it is both tiny and powerful, with comprehensive diagnostics and ... https://www.partshnc.com/r7284u1004-resideo-universal-digital-oil-primary