Raritan 20-Gallon Marine Hot Water Heater with Heat Exchanger – 120V

Model: 172011
Capacity: 20 Gallons
Power: 120V AC
Heating Type: Electric + Engine Heat Exchanger
Application: Marine / Boat Water Heater

Reliable Hot Water Onboard — At the Dock or Underway

The Raritan 20-Gallon Marine Hot Water Heater with Heat Exchanger delivers consistent hot water for showers, sinks, and galleys whether you’re plugged into shore power or cruising. Designed for marine environments, this high-capacity unit combines electric heating with an engine heat exchanger, giving you hot water while underway without extra electrical draw.

Dual Heating: Shore Power + Engine Heat

Enjoy fast hot water at the dock with 120V AC power, and free hot water while cruising using your engine’s heat. The built-in heat exchanger captures excess engine heat and transfers it to your water tank—efficient, smart, and perfect for long trips.

Marine-Grade Durability

Built for life on the water, this water heater features a corrosion-resistant tank and rugged construction to handle vibration and harsh marine conditions. The insulated tank helps retain heat longer, reducing reheating cycles and saving energy.

Easy Installation & Maintenance

Designed to integrate easily into most marine plumbing systems, this unit is ideal for new installs or upgrades. The compact footprint fits well in engine rooms and utility compartments on larger boats.

Perfect For

• Yachts

• Cabin cruisers

• Liveaboard boats

• Houseboats

• Offshore & long-range cruisers