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Water Heater - 11 ltr (3 US Gal), Side Heat Exchanger

Water Heater - 11 ltr (3 US Gal), Side Heat Exchanger

A Wide Range Of Water Heaters Suitable For Harsh Marine Conditions. Available in The Americas only (with exception of S360EW 12 V Water heater which is available worldwide).

Whale Electric Water Heaters includes models with the very latest  technology. All heaters are manufactured from only highest quality materials and designed to specifically withstand harsh marine conditions


Whale's 11 ltr (3 US Gal) heaters are the lightest water heater at 14 lbs, saving weight on board. The white epoxy coating blends in well with existing equipment and the coated aluminium material offers corrosion resistance and weight saving.

Features and Benefits 


• Side mounted combination electric/heat exchanger 


• Robust Manufacturing 

- Hold down brackets welded to inner tank

- Double wall heat exchangers


• Safety controls

- Integrated pressure relief valve 

- Temperature and pressure drain tube included


• Magnesium anodes available separately

- Recommended to prevent corrosion and ensure a longer Water Heater life


• Sturdy, robust epoxy coated exterior


• Ignition protected

Available in The Americas only.
CodeNameOrientationElectric and Heat ExchangerCapacity (gal)Voltage RatingPSIExterior Material
S300WSeaward by Whale 3 Gal Water HeaterHorizontalSide3120 V150 psiWhite Epoxy
S350WSeaward by Whale 3 Gal Water HeaterHorizontalSide3240 V150 psiWhite Epoxy
  • 80335 Image
    80335 Water Heater Conversion Kit 240v To 120v
  • 80336 Image
    80336 Water Heater Conversion Kit 120v To 240v
  • 74556 Image
    74556 Magnesium Anodes
  • WX1599 Image
    WX1599 Thermostatic Mixer Valve

There are currently no spares for Water Heater - 11 ltr (3 US Gal), Side Heat Exchanger.

  • Whale Marine Brochure (English v12)
  • Whale Marine Brochure (French v2)

Whale products and services are available worldwide.
First choose a region, then select the country below for a list of distributors ( for trade/ retail customers) and retailers ( for consumers).

Or Company Name