My Account
Shopping Cart

Whale Water Systems S1250 Seaward 11 Gallon Marine Hot Water Heater with Rear Heat Exchanger

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

S1250
06/01/2036 2:42 PM
Sale Price

$778.32

4 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 Seaward S1250 is a premium 11-gallon stainless steel hot water heater designed specifically for marine applications. This dual-energy system provides reliable hot water on board using either 240V AC shore power with a 1500W heating element or engine coolant via the rear-mounted heat exchanger, giving you hot water flexibility whether you're at the dock or underway.

Key Features:

  • 11-gallon (42-liter) capacity provides ample hot water for showers, galley, and cleaning
  • Durable stainless steel tank construction resists corrosion in harsh marine environments
  • Rear-mounted heat exchanger allows heating from engine coolant while running
  • 240V AC electric heating element (1500W) for use when connected to shore power
  • Compact cylindrical design optimizes space in tight engine rooms and storage areas
  • High-quality insulation maintains water temperature and reduces energy consumption
  • Pressure and temperature relief valve included for safe operation
  • Designed and manufactured to meet marine safety standards

The Whale Seaward line is trusted by boaters worldwide for reliable performance and longevity. This water heater's dual-source capability ensures you'll have hot water available regardless of your power situation, making it an ideal choice for cruising sailors and powerboaters alike.

It has been great working with your website, very easy to navigate and see the measurements on parts. The website i very descriptive about important information. Extremely pleased with how things worked out. Thank you

Quick, easy process

Items arrived quickly - don't remember receiving any shipping notification though beforehand

Everything is as they seem

So far so good

Quick delivery. Order filled accurately.

Ok

fast and easy

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