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1700 Marine Water Heater
1700 Series Marine Water Heater – Compact, Durable Hot Water Solution for Cruising Vessels
The Raritan 1700 Series Marine Water Heater brings efficient, long-lasting hot water to boats of all sizes—engineered specifically for marine durability and ease of installation. Whether you’re docked at a marina or cruising offshore, this versatile system ensures fast, consistent hot water flow for showers, galley tasks, and cleaning routines onboard.
Built with a glass-lined steel tank and surrounded by high-density foam insulation, the 1700 Series maintains water temperature longer while reducing overall energy consumption. Unlike traditional stainless steel units, the glass-lined tank resists corrosion better in marine conditions and is backed by a sacrificial magnesium anode for extended service life—even with inconsistent water quality or frequent use.
With its powerful electric element, this heater delivers up to 13 gallons per hour (GPH) on 120V or up to 18 GPH on 240V, supporting multiple uses without delay. A fully adjustable thermostat allows water temperatures up to 160°F, giving you control over comfort and efficiency when blending hot and cold outputs.
For energy-conscious cruisers, the optional heat exchanger uses your engine’s cooling system to heat water while underway—saving power by using heat that would otherwise be wasted. The 7-foot internal coil maximizes contact area for rapid thermal transfer without increasing system complexity.
Installation is streamlined with all inlet, outlet, and relief valve connections on a single side. The unit connects easily to existing ¾” NPT pressure water systems and is available in 6-, 12-, and 20-gallon sizes to match your vessel’s layout.
Perfect for sailors in the Pacific Northwest, power cruisers in the Gulf Coast, or liveaboards anywhere in the Great Lakes, the Raritan 1700 Series delivers efficient hot water where and when you need it—quietly, reliably, and without taking up precious cabin space.
Smart design. Rugged build. Endless comfort.
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