Whale Water Systems S300W 3 Gallon Marine Hot Water Heater with Heat Exchanger - 120V 1500W

The Whale Water Systems S300W Seaward is a compact 3-gallon (11-liter) marine hot water heater engineered specifically for harsh marine environments. This dual-function unit features a side-mounted combination electric heating element and heat exchanger, allowing you to heat water using 120-volt AC power while docked or through your engine's cooling system while underway.

Key Features:

• Lightweight aluminum alloy construction - at just 14 lbs, it's one of the lightest marine water heaters available
• 1500-watt, 13-inch electric heating element for rapid water heating on AC power
• Double-wall heat exchanger compatible with engine coolant system
• Corrosion-resistant white epoxy coating that blends with existing marine equipment
• Hold-down brackets welded directly to inner tank for secure mounting
• Integrated temperature and pressure relief valve with drain tube included
• 1/2 inch NPT water inlet and outlet connections
• Ignition protected for marine safety standards

Built with premium materials designed to withstand saltwater exposure and constant vibration, this water heater provides reliable hot water for galleys, showers, and washdown systems. The aluminum construction offers excellent corrosion resistance while keeping weight to a minimum - critical for marine applications. Magnesium anodes available separately to extend tank life and prevent corrosion.