This Burnham Commercial assembly component is a rear jacket box made from low emission (LE) steel. The primary function of this part is to provide a protective enclosure for the internal components of a heating system, ensuring they are shielded from external elements and potential damage. Constructed with high-quality LE steel, it offers superior durability and resistance to corrosion. This assembly component is specifically designed for compatibility with certain models of Burnham Commercial heating systems. Its design allows for efficient heat transfer and improved system performance.