My Account
Shopping Cart

Whale Water Systems S300W 3 Gallon Marine Hot Water Heater with Heat Exchanger - 120V 1500W

Manufacturer

Whale Water Systems

<p>Whale Water Systems, established in 1946, has been at the forefront of marine pump technology for over seven decades. Now a proud part of Navico Group (a division of Brunswick Corporation), Whale is a committed leader in connected water systems for marine applications. With a reputation built on innovative engineering and unwavering reliability, Whale has become the go-to choice for boat owners, recreational mariners, and commercial vessel operators who demand performance and durability in challenging marine environments.</p><h3>Engineering Excellence for Every Onboard Water Need</h3><p>Whale makes outdoor living easy and enjoyable with a wide range of quality low voltage pump, heating, and water systems, delivering true independence and freedom with complete systems designed for use on the water. From bow to stern, Whale's comprehensive product lineup addresses every aspect of onboard water management. The brand's dedication to innovation is evident in their development of specialized solutions including the world's first low-profile electric bilge pump, showcasing their commitment to space-saving design without compromising functionality.</p><h3>Complete Water System Solutions</h3><p>At the heart of Whale's marine offering is their extensive range of <a href="/7648-whale-water-systems-pressurized-water-system-tubing-fittings-200807">pressurized water system tubing and fittings</a>, which form the backbone of reliable onboard plumbing installations. These marine-grade components ensure leak-free connections and consistent water flow throughout the vessel. For bilge management, Whale's <a href="/7648-whale-water-systems-manual-bilge-pumps-200649">manual bilge pumps</a> provide dependable backup solutions when electrical systems aren't practical or as emergency redundancy.</p><p>Whale's freshwater range includes the highest quality marine-grade electric and manual pumps, and a full range of accessories to deliver a smooth and consistent on-board freshwater supply. Their <a href="/7648-whale-water-systems-aft-decktransom-showers-200072">aft-deck and transom showers</a> bring convenience to any vessel, while <a href="/7648-whale-water-systems-showerfaucet-mixers-200946">shower and faucet mixers</a> offer precise temperature control for comfort in galley and head installations. The brand also manufactures critical electrical components like <a href="/7648-whale-water-systems-float-switches-200426">float switches</a> that automate bilge pump operation, providing peace of mind for vessel owners.</p><h3>Built for Marine Environments</h3><p>Whale is a well-known brand with a reputation built on decades of high quality design expertise, supplying the marine, caravan, motor home, shower drainage and industrial markets around the world with innovative freshwater, bilge and waste pumps and water & space heating systems. Every Whale product is engineered to withstand the harsh conditions of marine use—saltwater exposure, constant vibration, temperature fluctuations, and the demanding duty cycles that come with life aboard. Whether you're outfitting a small sailboat or a large commercial vessel, Whale Water Systems delivers the reliability and performance that mariners have trusted for generations.</p>

Part Number

S300W
06/01/2036 2:42 PM
Sale Price

$639.40

3 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Whale Water Systems S300W Seaward is a compact 3-gallon (11-liter) marine hot water heater engineered specifically for harsh marine environments. This dual-function unit features a side-mounted combination electric heating element and heat exchanger, allowing you to heat water using 120-volt AC power while docked or through your engine's cooling system while underway.

Key Features:

  • Lightweight aluminum alloy construction - at just 14 lbs, it's one of the lightest marine water heaters available
  • 1500-watt, 13-inch electric heating element for rapid water heating on AC power
  • Double-wall heat exchanger compatible with engine coolant system
  • Corrosion-resistant white epoxy coating that blends with existing marine equipment
  • Hold-down brackets welded directly to inner tank for secure mounting
  • Integrated temperature and pressure relief valve with drain tube included
  • 1/2 inch NPT water inlet and outlet connections
  • Ignition protected for marine safety standards

Built with premium materials designed to withstand saltwater exposure and constant vibration, this water heater provides reliable hot water for galleys, showers, and washdown systems. The aluminum construction offers excellent corrosion resistance while keeping weight to a minimum - critical for marine applications. Magnesium anodes available separately to extend tank life and prevent corrosion.

Excellent!

So Far So Good. i will continue to check you guys out.

So far EXCEPTIONAL!!! I know the helmet will be as well.

Quick and easy

I'm happy with my order.

Great products and prices!

Great service. Thanks

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy