Atwood Water Heaters not only heat water quickly and efficiently, but also deliver every possible ounce of usable hot water from the tank. Atwood water heaters perform reliably, assuring customer satisfaction and full use of the hot water benefits designed in your pleasure boat. Forgiving incalloy element - Each Atwood electric water heater is equipped with a high quality incalloy heating element designed to withstand accidental operation on an empty tank. The electrical system is ignition protected and meets UL specifications. Safe and efficient heat exchangers - To quickly heat water when under power, Atwood has developed efficient heat exchangers. Each heat exchanger is specifically designed for the water heater's capacity resulting in superior heat-up times. These heat exchangers use double tube construction, which prevents any possibility of engine coolant contaminating the fresh water system. Corrosion resistant exterior - The casing of every Atwood electric water heater is constructed from corrosion resistant materials and carefully painted to stand up against the most corrosive marine environments. Special attention to detail on edges and corners helps assure greater handling safety. Designed for installation flexibility - The cubic shape and lightweight aluminum-alloy tank offer greater flexibility for water heater location in floor plans.