Seaward Hot Water Heater for Outboard Boats - 3 Gallon
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Seaward Hot Water Heater for Outboard Boats - 3 Gallon

Seaward Hot Water Heater for Outboard Boats - 3 Gallon

  • Capacity: 3 Gal., Orientation: Horizontal, Heat Exchanger: None
  • Power: 12 Volt DC / 300 Watts, Tank Material: Aluminum
  • Dimensions: 13-1/4" H x 13" W x 13-3/4 D
  • Item #: 
    Seaward By Whale
    Model #: 
    Shipping Weight: 
    13.50 Lbs.
    List Price: 
    Our Price:
    Status:      In Stock




    • Hot Water On the Go For Outboard Boats
    • Whale's unique 12 Volt Water Heater ideal for use on outboard boats
    • 3 Gallon capacity
    • Heater delivers fast water heat up and long heat retention for all your hot water needs on board
    • 12 Volt DC Power Supply - No generator / inverter/ shore power required
    • Rapid Heat Up - Hot water in less than 1 hour
      • Performance - Efficient 300 Watt element for hot water in less than 60 minutes
    • Efficient - Maintains hot water for 10 hours
    • Ideal For Use With Deck Showers - Perfect for warming wetsuits
    • Safety Features
      • Low current switching
      • Integrated temperature and pressure valve
      • Thermal cut-out
      • Heating Indication output
      • Ignition protected (ABYC E-11)
    • Compact Design - Fits in small places
    • Secure Installation - Tank welded mounting brackets
    • Control - Relay allows low current switching at helm
    • Robust - White Epoxy Coated Aluminum
    • 2 Year Warranty

    Note: All Whale Water Heaters must be installed and serviced by a qualified electrician


    • Capacity: 3 Gals (12 ltrs)
    • Recommended Fuse Size: 35 Amps
    • Current Draw: 30 Amps
    • Electrical Supply: 12 Volt DC, 300 Watt
    • Maximum Water Temperature: 140° F (60° C)
    • T&P Valve Specs: 210° F (99° C), 75 PSI (5.2 bar)
    • Materials:
      • Tank - ALCLAD
      • Casing - White Aluminum
    • Maximum Tested Pressure: 300 PSI (20.7 bar)
      • ABYC Requirements: 125 PSI, H-23
    • Connections: 1/2" NPT Female
    • Weight: 15 lbs (6.8 kg)
    • Includes a Magnesium Anode / Drain Valve Combo for Longer Tank Life
    • Dimensions: 13-1/4" H x 13" W x 13-3/4 Deep (Includes Mounting Brackets)
    WARNING: This product MAY expose you to chemicals, which are known to the State of California to cause cancer, birth defects and/or other reproductive harm. For more information go to


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