Outdoor furnaces are wood fired and housed outside of a home, but the heat source and the space to be heated can be as much as a hundred yards apart.
The heating system can heat either glycol or water where it’s pumped through insulated pipes to your home.
The hot liquid can supply heat in many ways such as liquid to liquid heat exchanging, direct heat, and through a hot air radiator; In a liquid-to-liquid heat exchange system, the heated liquid enters a large storage tank that includes coils of copper tubing and secondly, water in the tubing is heated. The heated water then flows through the hot water baseboard system in your home and supplies all your hot water needs.A direct heat heating process is when heated liquid enters the home and goes directly into the home’s hydronic system and indirectly heats the hot water in a separate system. When using a hot air radiator, hot liquid can be pumped through inside the plenum of a forced-air system. Using the duct of an existing HVAC system, the radiator transfers the heat to the air. The heat is then distributed by the fans of the heating system when the control unit comes on. All outdoor heating systems operate on a closed loop which means that the cooled liquids return to the heat source through a return tube and are reheated. There are three types of outdoor furnaces and choosing the right one for your home and needs is important.