The Empyre Hot Water Outdoor Furnace stands out among outdoor hot water boilers for its high quality 304 Stainless Steel construction, its outstanding warranty, and its tremendous flexibility. Although it was originally designed to burn cordwood, the Empyre may be equipped with a Pro-Stoker, allowing you to burn corn, ag cubes, wood pellets, coal, or other biomass fuels. The Empyre is available in four sizes to fit any residential or small business heating load and is equipped with several ports for multiple hookups. The Empyre is ideal for heating houses, shops, small greenhouses, pools, hot tubs, garages, sheds, and domestic hot water.