This Burnham Commercial Field Modification Kit is designed for natural gas (NAT GAS) applications. The kit, produced in 2013, includes all necessary components to modify a variety of Burnham Commercial heating systems to operate with natural gas as the fuel source. It is engineered to ensure optimal performance and efficiency when converting from other fuel types. The kit components are made from high-quality materials for durability and long-lasting use. It is important to note that this kit should be installed by a qualified professional to ensure safe and proper operation.