Whale Seaward 6 Gallon Hot Water Heater w/Rear Heat Exchanger - Galvanized Steel - 240V - 1500W

The Whale Seaward 6 Gallon Hot Water Heater with Rear Heat Exchanger is purpose-built for cruising anglers and liveaboard boaters who demand reliable, on-demand hot water in all sea conditions. After years on the water, any serious captain knows that consistent hot water for showers, galley cleanup, and washdown transforms comfort during extended trips. This marine-grade unit delivers exactly what working vessels need: dependable performance in a compact footprint that integrates seamlessly with existing engine cooling systems through its rear heat exchanger design.

Constructed from galvanized steel, the Whale Seaward 6 Gallon unit resists saltwater corrosion—critical for extended ocean passages and coastal work. The rear heat exchanger allows the heater to capture waste heat directly from your engine's cooling circuit, maximizing fuel efficiency while minimizing electrical draw from your battery bank. Running on 240V at 1500W, it operates effectively on modern marine electrical systems and generators, heating six gallons of water to usable temperature without excessive power demand. This dual-heating approach—combining engine heat exchange with electric backup—ensures consistent hot water whether you're motoring or at anchor.

Professional fishing charters, live-aboard cruisers, and commercial fishing operations benefit most from this proven system, particularly those operating in saltwater environments where corrosion resistance is non-negotiable. Installation requires proper 240V electrical integration and connection to your engine's fresh water cooling loop—work best handled by a qualified marine technician familiar with your specific vessel's systems. The unit's 14 x 14 x 22-inch profile fits tight engine room spaces typical of fishing boats and cruising sailboats, while its 25-pound weight won't strain mounting brackets. Whale Marine's reputation for reliability ensures years of service in demanding offshore conditions.