Hot Water Heaters

Captains Marine Supply offers quality Marine Water Heaters in 120 or 240V & 1500 up to 4500 - Watt Heating capabilities. We carry the line of Raritan & Whale Seaward Marine Hot Water Heaters & related Parts. Additionally we carry permanent or seasonal Hot Water By-Pass Kit from Camco.
Select one of these Quality Marine Hot Water Heaters today & ensure you produce hot water consistently aboard your vessel, for many years to come!

40 products found in Hot Water Heaters

Quick View Camco Quick Turn Permanent Waterheater Bypass Kit
Camco Quick Turn Permanent Waterheater Bypass Kit
  • $29.99
Quick View Camco Seasonal Waterheater Bypass Kit
Camco Seasonal Waterheater Bypass Kit
  • $8.99
Quick View Raritan 12-Gallon Hot Water Heater w/Heat Exchanger - 120v
Raritan 12-Gallon Hot Water Heater w/Heat Exchanger - 120v
  • $1,063.99
Quick View Raritan 12-Gallon Hot Water Heater w/o Heat Exchanger - 120v
Raritan 12-Gallon Hot Water Heater w/o Heat Exchanger - 120v
  • $931.99
Quick View Raritan 20-Gallon Hot Water Heater w/Heat Exchanger - 4500w/240v
Raritan 20-Gallon Hot Water Heater w/Heat Exchanger - 4500w/240v
  • $1,403.99
Quick View Raritan 20-Gallon Hot Water Heater w/o Heat Exchanger - 120v
Raritan 20-Gallon Hot Water Heater w/o Heat Exchanger - 120v
  • $1,071.99
Quick View Raritan 20-Gallon Water Heater w/Heat Exchanger - 120v
Raritan 20-Gallon Water Heater w/Heat Exchanger - 120v
  • $1,140.99

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Quick View Raritan 6-Gallon Hot Water Heater w/Heat Exchanger - 120v
Raritan 6-Gallon Hot Water Heater w/Heat Exchanger - 120v
  • $999.99
Quick View Raritan Heating Element w/Gasket - Bolt-On Type - 120v
Raritan Heating Element w/Gasket - Bolt-On Type - 120v
  • $37.99

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Quick View Raritan Heating Element w/Gasket - Screw-In Type - 120v
Raritan Heating Element w/Gasket - Screw-In Type - 120v
  • $34.99
Quick View Raritan Water Heater Thermostat Assembly
Raritan Water Heater Thermostat Assembly
  • $79.99
Quick View Whale 3 Gallon Hot Water Heater - White Epoxy - 12V - 1500W
Whale 3 Gallon Hot Water Heater - White Epoxy - 12V - 1500W
  • $722.99
Quick View Whale Seaward 11 Gallon Hot Water Heater - Stainless Steel - 120V - 1500W
Whale Seaward 11 Gallon Hot Water Heater - Stainless Steel - 120V - 1500W
  • $714.99

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Quick View Whale Seaward 11 Gallon Hot Water Heater - White Epoxy - 240V - 4500W
Whale Seaward 11 Gallon Hot Water Heater - White Epoxy - 240V - 4500W
  • $691.99

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Quick View Whale Seaward 11 Gallon Hot Water Heater w/Front Heat Exchanger - Galvanized Steel - 120V - 1500W
Whale Seaward 11 Gallon Hot Water Heater w/Front Heat Exchanger - Galvanized Steel - 120V - 1500W
  • $597.99

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Quick View Whale Seaward 11 Gallon Hot Water Heater w/Front Heat Exchanger - Galvanized Steel - 240V - 1500W
Whale Seaward 11 Gallon Hot Water Heater w/Front Heat Exchanger - Galvanized Steel - 240V - 1500W
  • $627.99

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Quick View Whale Seaward 11 Gallon Hot Water Heater w/Front Heat Exchanger - Stainless Steel - 240V - 1500W
Whale Seaward 11 Gallon Hot Water Heater w/Front Heat Exchanger - Stainless Steel - 240V - 1500W
  • $763.99

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Quick View Whale Seaward 11 Gallon Hot Water Heater w/Front Heat Exchanger - White Epoxy - 120V - 1500W
Whale Seaward 11 Gallon Hot Water Heater w/Front Heat Exchanger - White Epoxy - 120V - 1500W
  • $658.99

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Quick View Whale Seaward 11 Gallon Hot Water Heater w/Front Heat Exchanger - White Epoxy - 240V - 1500W
Whale Seaward 11 Gallon Hot Water Heater w/Front Heat Exchanger - White Epoxy - 240V - 1500W
  • $677.99
Quick View Whale Seaward 11 Gallon Hot Water Heater w/Rear Heat Exchanger - Galvanized Steel - 120V - 1500W
Whale Seaward 11 Gallon Hot Water Heater w/Rear Heat Exchanger - Galvanized Steel - 120V - 1500W
  • $589.99

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Quick View Whale Seaward 11 Gallon Hot Water Heater w/Rear Heat Exchanger - Galvanized Steel - 240V - 1500W
Whale Seaward 11 Gallon Hot Water Heater w/Rear Heat Exchanger - Galvanized Steel - 240V - 1500W
  • $618.99

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Quick View Whale Seaward 11 Gallon Hot Water Heater w/Rear Heat Exchanger - Stainless Steel - 240V - 1500W
Whale Seaward 11 Gallon Hot Water Heater w/Rear Heat Exchanger - Stainless Steel - 240V - 1500W
  • $733.99

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Quick View Whale Seaward 11 Gallon Hot Water Heater w/Rear Heat Exchanger - White Epoxy - 120V - 1500W
Whale Seaward 11 Gallon Hot Water Heater w/Rear Heat Exchanger - White Epoxy - 120V - 1500W
  • $698.99

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Quick View Whale Seaward 3 Gallon Hot Water Heater - White Epoxy - 120V - 1500W
Whale Seaward 3 Gallon Hot Water Heater - White Epoxy - 120V - 1500W
  • $586.99

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Quick View Whale Seaward 3 Gallon Hot Water Heater - White Epoxy - 240V - 1500W
Whale Seaward 3 Gallon Hot Water Heater - White Epoxy - 240V - 1500W
  • $603.99
Quick View Whale Seaward 3 Gallon Hot Water Heater w/Side Heat Exchanger - White Epoxy - 120V - 1500W
Whale Seaward 3 Gallon Hot Water Heater w/Side Heat Exchanger - White Epoxy - 120V - 1500W
  • $600.99

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Quick View Whale Seaward 6 Gallon Hot Water Heater - Galvanized Steel - 240V - 1500W
Whale Seaward 6 Gallon Hot Water Heater - Galvanized Steel - 240V - 1500W
  • $544.99
Quick View Whale Seaward 6 Gallon Hot Water Heater - Stainless Steel - 120V - 1500W
Whale Seaward 6 Gallon Hot Water Heater - Stainless Steel - 120V - 1500W
  • $626.99

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Quick View Whale Seaward 6 Gallon Hot Water Heater - Stainless Steel - 240V - 1500W
Whale Seaward 6 Gallon Hot Water Heater - Stainless Steel - 240V - 1500W
  • $643.99
Quick View Whale Seaward 6 Gallon Hot Water Heater - White Epoxy - 120V - 1500W
Whale Seaward 6 Gallon Hot Water Heater - White Epoxy - 120V - 1500W
  • $585.99

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Quick View Whale Seaward 6 Gallon Hot Water Heater - White Epoxy - 240V - 3000W
Whale Seaward 6 Gallon Hot Water Heater - White Epoxy - 240V - 3000W
  • $610.99

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Quick View Whale Seaward 6 Gallon Hot Water Heater w/Front Heat Exchange - Galvanized Steel - 240V - 1500W
Whale Seaward 6 Gallon Hot Water Heater w/Front Heat Exchange - Galvanized Steel - 240V - 1500W
  • $559.99
Quick View Whale Seaward 6 Gallon Hot Water Heater w/Front Heat Exchanger - Stainless Steel - 120V - 1500W
Whale Seaward 6 Gallon Hot Water Heater w/Front Heat Exchanger - Stainless Steel - 120V - 1500W
  • $630.99

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Quick View Whale Seaward 6 Gallon Hot Water Heater w/Front Heat Exchanger - Stainless Steel - 240V - 1500W
Whale Seaward 6 Gallon Hot Water Heater w/Front Heat Exchanger - Stainless Steel - 240V - 1500W
  • $659.99

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Quick View Whale Seaward 6 Gallon Hot Water Heater w/Front Heat Exchanger - White Epoxy - 240V - 1500W
Whale Seaward 6 Gallon Hot Water Heater w/Front Heat Exchanger - White Epoxy - 240V - 1500W
  • $636.99
Quick View Whale Seaward 6 Gallon Hot Water Heater w/Rear Heat Exchanger - Galvanized Steel - 120V - 1500W
Whale Seaward 6 Gallon Hot Water Heater w/Rear Heat Exchanger - Galvanized Steel - 120V - 1500W
  • $525.99

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Quick View Whale Seaward 6 Gallon Hot Water Heater w/Rear Heat Exchanger - Galvanized Steel - 240V - 1500W
Whale Seaward 6 Gallon Hot Water Heater w/Rear Heat Exchanger - Galvanized Steel - 240V - 1500W
  • $558.99

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Quick View Whale Seaward 6 Gallon Hot Water Heater w/Rear Heat Exchanger - Stainless Steel - 240V - 1500W
Whale Seaward 6 Gallon Hot Water Heater w/Rear Heat Exchanger - Stainless Steel - 240V - 1500W
  • $657.99

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Quick View Whale Seaward 6 Gallon Hot Water Heater w/Rear Heat Exchanger - White Epoxy - 120V - 1500W
Whale Seaward 6 Gallon Hot Water Heater w/Rear Heat Exchanger - White Epoxy - 120V - 1500W
  • $593.99
Quick View Whale Seaward Magnesium Anode
Whale Seaward Magnesium Anode
  • $27.99