A Jensen wood burning furnace is a type of furnace manufactured by the Jensen company, which is now known as Mastercraft Metals. Wood burning furnaces serve as an alternate means of heating one's home by burning wood, which some find cheaper to use than other fuel sources.
Typically, wood burning furnaces produce heat by burning fuel, which may help lower energy costs during colder months. They can also be used to power one's home, depending on the model used. There are different kinds of wood burning furnaces, some that come can run on other fuels, such as coal, and others that can convert a large part of the fuel used into energy, with up to 90 percent efficiency.