Coen equipment is known worldwide for reliability, efficiency and environmental responsiveness. At Coen, combustion is our only business, and your complete satisfaction is our mission. Since 1912, Coen is the industry lea......Coen equipment is known worldwide for reliability, efficiency and environmental responsiveness. At Coen, combustion is our only business, and your complete satisfaction is our mission. Since 1912, Coen is the industry leader in the application of clean burning combustion products, and offers the highest level of customer service. Coen’s unparalleled commitment to results-oriented engineering will keep us at the forefront of combustion innovation. By choosing Coen, you will have absolute confidence in your combustion systems components - achieving better performance, lower emissions and more powerful results.