Coates products have become the name to trust for quality and reliability in water heating equipment since the 1940's. Based out of Kent, Washington, Coates continues to lead the industry in quality and performance across their entire line of swimming pool products. They manufacture electric pool and spa water heaters with booster heaters available in a wide range of wattages. The pool and spa heaters are available from 1.5kW to 57kW and most can be ordered in single or three phase models. For larger commercial applications, they offer heaters up to 300kW. Every Coates electric pool and spa heater is designed using the best technology, materials, and engineering processes available, to bring you a top-quality product that will provide years of hassle-free performance.