Whale Water Systems S700 6-Gallon Marine Water Heater with Heat Exchanger

The Whale Water Systems S700 is a compact 6-gallon marine water heater designed for boats, RVs, and other marine applications. This dual-energy system features both 120V electric heating and a rear-mounted heat exchanger for engine heat integration, providing flexible hot water solutions whether docked or underway.

Key Features:

• 6-gallon capacity with stainless steel tank construction for corrosion resistance
• Dual heating: 120V electric element plus rear heat exchanger for engine heat
• Compact dimensions: 13" W x 19" D x 13" H for easy installation in tight spaces
• 100 PSI maximum working pressure
• Durable stainless steel construction for marine environments
• Energy-efficient design reduces power consumption at dock

The S700's rear heat exchanger configuration allows the unit to be connected to your engine's cooling system, providing "free" hot water while underway. When docked or at anchor, the 120V electric element maintains hot water availability. This dual-source capability makes it an ideal choice for cruisers and liveaboards seeking reliable hot water in all conditions.