Seaward S1100W Marine Water Heater — 11 Gal, 120V AC, White Epoxy Aluminum (698-S1100W)
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
11-Gallon Capacity with a Finish Built for Visibility and Corrosion Resistance
The Seaward S1100W (698-S1100W) delivers the same proven 11-gallon, 120V AC performance as the S1100 — but in a white epoxy-coated aluminum exterior that's lighter, easier to spot in a crowded engine room, and better suited to installations where aesthetics or weight savings matter. The rear-mounted dual-wall heat exchanger ties into your engine's coolant loop for efficient underway hot water production.
Key Features
- 11-Gallon Capacity — ample hot water for larger crews, liveaboards, and extended passages
- 120V AC / 1800W — shore power compatible for marina and dock use
- Rear-Mounted Dual-Wall Heat Exchanger — engine coolant loop integration for underway heating efficiency
- White Epoxy-Coated Aluminum Case — lighter than galvanized steel; corrosion-resistant finish; clean appearance for visible or semi-exposed installations
- Aluminum Tank — hold-down brackets welded directly to tank for secure, vibration-proof mounting
- Ignition Protection — safe for installation aboard gasoline-engine vessels
- UL Certified — meets US safety standards for marine electrical appliances
Parts Desk Insights
SKU 698-S1100W is the white epoxy aluminum variant of the S1100 line, sourced through Land 'N' Sea under the Whale/Seaward brand. At 11.3 kg it is notably lighter than the galvanized S1100 (15.4 kg) — a meaningful difference for overhead or difficult-access installs. The ‘W’ suffix denotes the aluminum/white exterior; confirm with the customer whether finish or weight is the deciding factor vs. the standard S1100 (698-S1100). Same rear heat exchanger configuration applies — verify engine room plumbing layout before recommending. No image currently on file — flag for photo or manufacturer asset request.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.