Marine Hot Water Heaters for Reliable Onboard Comfort
Enjoy warm water anytime on your boat with our dependable selection of marine hot water heaters. Perfect for showers, galley use, and onboard cleaning, these systems are built to deliver consistent hot water while withstanding the tough conditions of life at sea.
Our collection includes electric, engine-exchange, and combination water heaters from trusted marine brands—featuring stainless steel tanks, corrosion-resistant components, and compact designs that fit easily in tight onboard spaces. Efficient and durable, these heaters ensure comfort whether you’re docked or underway.
Shop now to upgrade your vessel with a high-performance marine hot water heater and bring the convenience of home to your next adventure.
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Vendor:Whale Marine
Whale Seaward Magnesium Anode [74556]
Regular price $27.95 USDRegular price$33.57 USD-$5.62 USD Sale price $27.95 USD -
Vendor:Whale Marine
Whale Seaward Thermostatic Mixer Valve [WX1599B]
Regular price $192.95 USDRegular price$239.99 USD-$47.04 USD Sale price $192.95 USD -
Vendor:Whale Marine
Whale Seaward 6 Gallon Hot Water Heater - Stainless Steel - 120V - 1500W [S700E]
Regular price $665.95 USDRegular price$869.99 USD-$204.04 USD Sale price $665.95 USD -
Vendor:Whale Marine
Whale Seaward 6 Gallon Hot Water Heater w/Front Heat Exchager - White Epoxy - 120V - 1500W [F600W]
Regular price $654.95 USDRegular price$849.99 USD-$195.04 USD Sale price $654.95 USD -
Vendor:Whale Marine
Whale Seaward 6 Gallon Hot Water Heater w/Front Heat Exchanger - Stainless Steel - 120V - 1500W [F700]
Regular price $669.95 USDRegular price$879.99 USD-$210.04 USD Sale price $669.95 USD -
Vendor:Whale Marine
Whale Seaward 6 Gallon Hot Water Heater w/Rear Heat Exchanger - White Epoxy - 120V - 1500W [S600W]
Regular price $631.95 USDRegular price$819.99 USD-$188.04 USD Sale price $631.95 USD -
Vendor:Raritan
Raritan Electrode Pack - 12v [32-5000]
Regular price $1,170.95 USDRegular price$1,600.00 USD-$429.05 USD Sale price $1,170.95 USD -
Vendor:Raritan
Raritan 6-Gallon Hot Water Heater w/Heat Exchanger - 120v [170611]
Regular price $1,199.95 USDRegular price$1,730.00 USD-$530.05 USD Sale price $1,199.95 USD -
Vendor:Raritan
Raritan 12-Gallon Hot Water Heater w/Heat Exchanger - 120v [171211]
Regular price $1,257.95 USDRegular price$1,865.00 USD-$607.05 USD Sale price $1,257.95 USD -
Vendor:Raritan
Raritan 20-Gallon Water Heater w/Heat Exchanger - 120v [172011]
Regular price $1,363.95 USDRegular price$2,000.00 USD-$636.05 USD Sale price $1,363.95 USD -
Vendor:Raritan
Raritan 20-Gallon Hot Water Heater w/o Heat Exchanger - 120v [172001]
Regular price $1,153.95 USDRegular price$1,730.00 USD-$576.05 USD Sale price $1,153.95 USD