Clayton currently offers Steam Generators and Fluid Heaters in 17 sizes ranging from 25 to 1000 Boiler Horsepower (BHP) or 862 to 34,500 pounds of steam per hour. These units are controlled flow, water tube boilers, built to the appropriate national and local standards, using high quality materials and workmanship. Units are designed to burn natural gas, propane, light oil and heavy oil, as well as a combination of these fuels and are available with steam design pressures up to 3000 psig. Superheat Units, which provide superheated steam, are also available in a variety of sizes and for a range of steam pressures and temperatures.