Atwood's engineering, manufacturing and application expertise have been honed by time and the experience of supplying millions of water heaters to the recreation vehicle market for more than 30 years. Almost 20 years ago, Atwood applied this specialized knowledge to meet the needs of the marine industry. In doing so, we designed the water heaters that have become the standard in the boating industry.

Additional features include:
Forgiving Incaloy® element
Each Atwood electric water heater is equipped with a high quality 120 volt/1400 watt Incaloy® heating element designed to withstand accidental operation in an empty tank. A 220 volt/1500 watt version is also available. The electrical system is ignition protected and meets UL specifications. Atwood 6- and 10-gallon water heaters are UL Marine approved.

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 heat up times superior to competitive models. These heat exchangers ensure safety by using a unique double tube construction which prevents any possibility of engine coolant contaminating the fresh water system.

Corrosion resistant construction
The casing of every Atwood electric water heater is constructed from corrosion resistant materials and the non stainless steel models are carefully painted to stand up against the most corrosive marine environments. Special attention to detail on edges and corners helps assure greater handling safety. The Atwood tank is constructed of high strength aluminum core with a bonded corrosion fighting cladding material on the interior surface to assure a long life. This eliminates the need for an anode and it's annual replacement.

Designed for installation flexibility
The cubic shape and lightweight aluminum-alloy tank offers greater flexibility for water heater location in floor plans.

Compliance
All 220/vac models carry the CE mark and comply with ISO 8846 "Ignition Protection." A unit for installation in a 75 P.S.I. system is available, but the water volume will be slightly less than 150 P.S.I. models.

Atwood marine water heaters offer substantial weight savings
Through the years, Atwood has advanced the technology and the application of highly specialized aluminum alloys used in forming the tanks of our water heaters. This technology delivers superior tank life, while allowing us to maintain substantial weight savings over all competitive models and greater design flexibility in location of the water heater for boat manufacturers. All 110V marine water heaters have a recovery rate of 8.2 gallons per hour.