The Arcotherm EK Series is a group of portable forced-air electric heaters available in four different sizes which offer a nominal range of heating power from 5,000 to 60,000 BTU’s. The heating process is 100% clean, eliminating the elements of flame and noxious fumes, as well as 100% efficient, transforming all of the electrical input power into heat output. For these reasons, they are suitable for use in all spaces, even closed rooms. At the same time, they have limited power and are generally used for indoor heating applications and in smaller outdoor structures, and where low-cost electrical power is available. All heaters in the series are made from steel and given a powder coated finish to provide you with a durable unit. Additionally, each unit is equipped with overheat protection, and stays cool even while the heater is running. The two larger units can also be outfitted with ducts to direct the produced heat to a specific room or area.