Outdoor wood-burning furnaces are free-standing units designed to heat homes and other outbuildings with wood heat. They are placed 30 to 200 feet away from a home, and heated water is pumped into the home through heat exchangers. Wood-burning furnaces are also capable of providing hot water to a home.
There are many manufacturers of outdoor wood-burning furnaces, such as Central Boiler, Heatmor and Woodmaster. Homeowners who have outdoor furnaces can eliminate heating costs by burning wood as they don't have to purchase fuel oil or LP to heat their homes. According to Outdoor Furnace Facts, some insurance companies prefer outdoor wood-burning furnaces over indoor wood furnaces because the risk of having a house fire is reduced.