This Burnham Commercial boiler sleeve is a vital component designed for 6 and 7 section packaged boilers. The sleeve serves as an insulating layer, enhancing the efficiency of the boiler by reducing heat loss. It is constructed from high-quality materials to ensure durability and longevity, even under constant high-temperature conditions. The product is specifically engineered to fit Burnham Commercial's 6 and 7 section packaged boilers, ensuring optimal performance and compatibility.