Natural gas wall furnaces are typically used to supplement your existing heating system, they can also be used in spaces where a central furnace may not be feasible. They can be installed in any room in your home because they do not require a chimney or additional venting. These self-contained heating appliances are less expensive than a traditional furnace because they heat smaller spaces, and control individual areas in your home. Wall furnaces are a great heating solution in mobile homes, or those hard to heat areas such as additions, basements and guest suites. They can be purchased in a variety of heating capacities and also work well in homes that requires different rooms to be different temperatures.