Central Boiler manufactures outdoor wood and wood pellet furnaces. Established in 1984 the company's innovations, patents, and efficient, clean-burning technology have established them as the leader in the industry. Their Classic Edge HDX outdoor wood furnace models are among the top for efficiency of all stick-cord wood heating appliances EPA-certified in the USA. The Maxim M255 PE outdoor wood pellet furnace is among the top for efficiency for EPA-certified wood pellet heaters. Central Boiler's proprietary FireStar Combustion Controller features built-in wireless connectivity, giving you the ability to monitor your outdoor furnace in real-time on your smartphone. To learn more about Central Boiler products, visit CentralBoiler.com.