This Burnham Commercial Field Modification Kit is designed for natural gas (NAT GAS) applications. The kit, produced in 2013, includes all necessary components for modifying the fuel intake system of compatible Burnham Commercial heating units. It allows the user to switch from a different fuel source to natural gas, enhancing the versatility of their existing equipment. The kit is engineered to meet industry standards for safety and efficiency, ensuring reliable performance once installed. Please note that installation should be carried out by a qualified professional to ensure proper function and adherence to safety regulations.