FIELD CONTROLS Type RC Draft Control is a device used to control the draft in a chimney, typically used with wood or oil burning installations. It helps to optimize combustion efficiency, reduce creosote buildup, and improve overall safety. By adjusting the draft, you can achieve the ideal balance between air supply and fuel consumption, resulting in cleaner burning and reduced emissions. The Type RC Draft Control is designed to maintain a consistent draft, regardless of changing conditions such as wind or temperature.