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

The Raritan 20-Gallon Water Heater with Heat Exchanger (Model 172011) is a 120-volt marine and RV water heating solution engineered for sustained hot water delivery in compact spaces. Built on the proven 1700 Series platform, this unit combines efficient heat exchange technology with robust pressure containment, making it the standard choice for galley, head, and shower applications on vessels and mobile platforms where reliable hot water is mission-critical.

The cylindrical tank design delivers superior pressure resistance compared to conventional cube-shaped tanks, capable of withstanding pressures up to 75 PSI when protected by the integral temperature and pressure relief valve. Dense foam insulation maximizes heat retention significantly longer than traditional fiberglass wrap, reducing recovery time and energy cycling. The integrated heat exchanger model captures waste engine heat to preheat incoming water, substantially reducing runtime on electric elements and extending operational efficiency in systems where engine block heat is available.

This 20-gallon capacity suits mid-sized vessels and RV installations where rapid hot water depletion is common during multi-user scenarios. Operators managing remote camps, tactical field operations requiring portable water heating, maritime platforms, and off-grid installations value the heat exchanger model's dual-source capability—running efficiently on engine heat during transit and on 120v power during dockside or stationary operations. The 73-pound unit installs in engine compartments, utility lockers, or dedicated equipment bays without requiring extensive space allocation.

Raritan's 1700 Series water heaters are OEM-specified equipment aboard commercial and military vessels worldwide, reflecting decades of marine hardware standards compliance. This heat exchanger variant is particularly valued in systems where fuel efficiency and extended operational range are engineering priorities.