The Draw Collar for wood burning stoves is designed to eliminate backdrafting and draw problems-such as keeping cold air out to prevent smoke from entering your room or killing your fire. The draw collar for wood burning stoves comes with a built in thermal sensor regulator, a 3' high temperature cord and an additional 3' extension cord to reach a nearby power outlet.  Installation is simple and only takes a few minutes. It  does not require cutting the pipe. The Draw Collar for wood burning stoves is available for installation on a 6", 7" or 8" double or single wall stove pipe.