Raritan 20-Gallon Hot Water Heater w/o Heat Exchanger - 120v

The Raritan 20-Gallon Hot Water Heater without heat exchanger is purpose-built for cruising anglers and liveaboard boaters who demand reliable, on-demand hot water at sea. Unlike engine heat exchangers that depend on engine operation, this 120-volt unit delivers consistent hot water whenever you need it—whether you're rinsing gear after a long day of fishing, showering between tides, or simply enjoying galley comfort during extended offshore runs.

At 20 gallons, the capacity suits vessels from 30 to 50 feet where space and weight efficiency matter. This dedicated electric heating unit operates independently from your marine propulsion system, eliminating the need for a heat exchanger connection and simplifying plumbing installation. The 120-volt design integrates seamlessly with standard marine AC systems or inverter setups while at dock or on genset power, drawing reasonable amperage for its capacity.

Manufactured by Raritan—a trusted name in marine sanitation and comfort systems for over four decades—this heater is engineered to withstand saltwater environments with corrosion-resistant construction. Its compact footprint (22 x 22 x 28 inches) and manageable 65-pound weight allow flexible mounting in engine rooms, lazarettes, or utility cabins without compromising stability or access. Ideal for anglers who fish multiple days without returning to shore, cruisers who anchor in remote locations, and charter operators prioritizing guest comfort, this heater pairs well with existing systems.