Whale Marine Seaward 6 Gallon Hot Water Heater – Stainless Steel with Rear Heat Exchanger – 240V

The Whale Seaward 6 Gallon Hot Water Heater with Rear Heat Exchanger – Stainless Steel – 240V (Model S750) is a rugged, marine-grade electric water heater engineered to deliver continuous hot water aboard boats, yachts, and watercraft. Built with a stainless steel exterior for superior corrosion resistance and a rear heat exchanger, this unit maximizes energy efficiency by allowing engine heat to pre-heat the tank’s water while underway, lessening reliance on shore power or generator use. 

Designed for horizontal mounting, the S750 features double-wall heat exchangers, integrated safety controls, an integrated pressure relief valve, and a temperature and pressure drain tube for simplified maintenance. Its stainless steel casing not only offers a modern finish but also delivers durability in harsh saltwater environments. 

Whether installed as a primary hot water source or paired with your vessel’s engine cooling system, this hot water heater provides dependable performance for showers, sinks, and galley duties. 

Key Features:

• Capacity: 6 gallons (23 L)

• Voltage: 240 V AC

• Rear Heat Exchanger: Utilizes engine heat to pre-heat water

• Stainless steel exterior for corrosion resistance

• Double-wall heat exchangers for efficient heating

• Integrated pressure relief valve and safety controls

• Horizontal mounting design

• Temperature/pressure drain tube included

• Hold-down brackets welded to inner tank for secure installation 

Applications:

• Hot water supply for marine sinks and showers

• Engine-assisted hot water heating via rear exchanger

• Boats, yachts, and marine vessels with 240V systems

Upgrade to the Whale Seaward 6 Gallon Hot Water Heater (S750) for reliable, corrosion-resistant hot water performance that takes advantage of both shore power and engine heat.