HOW A CENTRAL BOILER OUTDOOR FURNACE WORKS

• The Central Boiler outdoor furnace is located outside, typically 30 to 200 feet (but as far
  as 500 feet) away from your home or building, and works with any existing heating system.
• A water jacket surrounds the furnace firebox and heat exchanger, and heated water is
  circulated to your home or building through insulated underground pipes -- an efficient
  way to move heat over distances.
• The outdoor furnace is designed to work with any existing heating system. Water-to-air
  or water-to-water heat exchangers or direct circulation conveys the heat into the
  structure's forced-air furnace, radiant baseboard or radiant floor heating system.
  his allows younormal thermostatic temperature control.