Marine Plumbing & Ventilation - Hot Water Heaters

Whale Seaward 6 Gallon Hot Water Heater w/Front Heat Exchanger - Stainless Steel - 240V - 1500W [F750]

Seaward 6 Gallon Hot Water Heater with Front Heat Exchanger - Stainless Steel - 240V - 1500W

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

Water Heaters with a Stainless Steel cover offer high levels of corrosion resistance with a modern stainless steel finish. These heaters are a bit lighter than those wearing the galvanized outer cover and heavier than the epoxy coated versions.

Features and Benefits:

• Horizontal Mounting only
• 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 exteriors
• Ignition protected

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Specifications:

• Gallons: 6
• Heat Exchanger: Yes
• Volts: 240v
• Box Dimensions: 14"H x 14"W x 22"L WT: 24.5 lbs
• UPC: 766478948205

Brochure (pdf)

Whale Seaward 6 Gallon Hot Water Heater - Galvanized Steel - 240V - 1500W [S650E]

Seaward 6 Gallon Hot Water Heater - Galvanized Steel - 240V - 1500W

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

The Marine Galvanized Steel Cover offers corrosion resistance at an affordable price. This material weighs more than the other case options but is made from a strong and robust material.

Features and Benefits:

• Horizontal Mounting only  
• 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 exteriors
• Ignition protected

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Specifications:

• Gallons: 6
• Volts: 240v
• Box Dimensions: 14"H x 14"W x 22"L WT: 24 lbs
• UPC: 766478948236

Brochure (pdf)

Whale Seaward 6 Gallon Hot Water Heater w/Front Heat Exchanger - White Epoxy - 240V - 1500W [F650W]

Seaward 6 Gallon Hot Water Heater with Front Heat Exchanger - White Epoxy - 240V - 1500W

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

The White Epoxy Coated Aluminium cases are well-suited to installation in many of today’s engine rooms. Their white appearance blends in well with existing equipment and the coated aluminium material offers corrosion resistance.

Features and Benefits:

• Horizontal Mounting only
• 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 exteriors
• Ignition protected

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Specifications:

• Gallons: 6
• Heat Exchanger: Yes
• Volts: 240v
• Box Dimensions: 14"H x 14"W x 22"L WT: 18.5 lbs
• UPC: 766478948175

Brochure (pdf)

Raritan 20-Gallon Water Heater w/o Heat Exchanger - 240V [172002]

Ships Direct From Manufacturer 

20-Gallon Water Heater without Heat Exchanger - 240V

A marine water heater is simply a small, insulated tank downstream of the pump. You must have a pressurized water system to operate a water heater. The pump draws water from the storage tank(s) and fills the water heater tank. Inside the water heater is an electrical heating element and usually a coiled tube called a heat exchanger. When AC power is available, the electrical element (controlled by a thermostat) heats the water. Away from the dock, the hot engine coolant is routed through the coiled tube to heat the water in the tank when the engine is running.

Water heaters have four threaded ports. The tank inlet connects via a tee connector to the outlet hose from the pump. A check valve is required in this line or in the heater to prevent hot water from migrating back toward the pump. The outlet connection supplies heated water to the hot side of all faucets, also using tee connectors. The other two ports are for the heat exchanger connection, which varies depending on engine installation. Use only metal fittings to plumb a water heater, never plastic. If a pressure-release valve isn’t integral, the heater will have a fifth port for this essential component.

Raritan’s 1700 Series Water Heaters are built for the long haul. A glass-lined steel tank and a rust-proof jacket keep the Raritan water heater looking great and lasting for many years. Research has shown that glass-lined steel tanks are more durable than tanks made from just stainless steel. To increase longevity and fluctuations in water quality, Raritan includes a sacrificial magnesium anode that ensures a long tank life.

Features:

• High-density non-CFC foam insulation helps the tank to maintain the hot water longer, a plus if you don’t want to run the generator for hot water
• The recovery rate is 13 gallons per hour
• Hot water at 160 degrees F when mixed with cold water can greatly extend the usable capacity of the tank
• Because the heater includes an adjustable thermostat it can be set as high as 160 degrees F 
• All plumbing connections on one side (it retrofits without difficulty to most onboard pressure systems)
• Hot and cold-water fittings are standard 3/4 in. male NPT and the heat exchanger’s 3/4 in. female NPT

Specifications:

• Tank Size: 20-gallon
• Volts: 240

Benefits: 

• Simple installation – retrofits to most on-board pressure systems
• Proven long-life design
• Withstands the rigors of the marine environment
• The glass-lined steel tank is more durable than stainless steel
• The attractive polymer jacket resists corrosion from dampness
• Ignition-protected, adjustable thermostat
• Round tanks are designed to withstand more pressure than square tanks
• Glass-lined steel tank for long life and high efficiency
• Environmentally friendly CFC-free foam insulation
• Replaceable magnesium anode to protect the tank and neutralize acids in the water
• The tank is covered by a five-year Limited Warranty
• Each unit is assembled by hand, individually tested, and backed by Raritan’s two-year Limited Warranty and legendary technical support team

Specifications:

• Volts: 240
• Heat Exchanger: No
• Gallons: Twenty
• Box Dimensions: 22"H x 23"W x 28"L WT: 65 lbs
• UPC: 085462001604

Owner's Manual (pdf)
Brochure (pdf)

Whale Seaward 11 Gallon Hot Water Heater w/Rear Heat Exchanger - White Epoxy - 120V - 1500W [S1100W]

Seaward 11 Gallon Hot Water Heater with Rear Heat Exchanger - White Epoxy - 120V - 1500W

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.

The White Epoxy Coated Aluminum cases are well-suited to install in many of today's engine rooms. Their white appearance blends in well with existing equipment and the coated aluminum material offers corrosion resistance.

Features and Benefits

• Multiple versions to suit your installation
• Robust Manufacturing
• Safety controls
• Magnesium anodes available separately
• Sturdy, robust exteriors
• Ignition protected

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Specifications:

• Gallons: 11
• Heat Exchanger: Yes
• Volts: 120v
• Box Dimensions: 17"H x 17"W x 26"L WT: 24.6 lbs
• UPC: 766478948359

11812 - 6 Gallon Water Heater - 120V

Kuuma's Premium 6 Gallon Water Heater is perfect for a new installation or as a replacement to an existing water heater.   Constructed of corrosion-resistant, marine-quality aluminum and heats water with the use of an electrical power or integrated heat exchanger.

Features:

• Ignition protected controls
• Mounting tabs
• Manual reset

Technical Specifications:

• Capacity - 6 Gallon
• Electrical Input - 120V
• Orientation - Horizontal
• Mounting Brackets - Front and Rear
• Heating Source - Rear heat exchange
• Maximum Water Temperature - 210°F
• T & P Valve Type - 100psi and 210° F
• Wiring Configuration - L1 and N
• Dimensions (W x H x D) - 13-3/4" x 13-5/8" x 19-3/4"

*Sold as an Individual 

WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Specifications:

• Gallons: 6
• Heat Exchanger: Yes
• Volts: 120
• Box Dimensions: 16"H x 16"W x 22"L WT: 22 lbs
• UPC: 014717118125

11850 - 11 Gallon Water Heater - 240V 

Kuuma's Premium 11 Gallon Water Heater is perfect for a new installation or as a replacement to an existing water heater.   Constructed of corrosion-resistant, marine-quality aluminum and heats water with the use of an electrical power or integrated heat exchanger.

Features:

• Ignition protected controls
• Mounting tabs
• Manual reset

Technical Specifications: 

• Capacity - 11 Gallon
• Electrical Input - 240V
• Orientation - Horizontal
• Mounting Brackets - Side to Side
• Heating Source - Front heat exchange
• Maximum Water Temperature - 210°F
• T & P Valve Type - 100psi and 210° F
• Wiring Configuration - L1 and N
• Dimensions (W x H x D) - 18-7/8" x 16-1/4" x 21-5/8"

*Sold as an Individual 

WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Specifications:

• Gallons: 11
• Heat Exchanger: Yes
• Volts: 240
• Box Dimensions: 19"H x 19"W x 26"L WT: 29.25 lbs
• UPC: 014717118507

11811 - 6 Gallon Water Heater - 120V

Kuuma's Premium 6 Gallon Water Heater is perfect for a new installation or as a replacement to an existing water heater.   Constructed of corrosion-resistant, marine-quality aluminum and heats water with the use of an electrical power or integrated heat exchanger.

Features:

• Ignition protected controls
• Mounting tabs
• Manual reset

Technical Specifications:

• Capacity - 6 Gallon
• Electrical Input - 120V
• Orientation - Horizontal
• Mounting Brackets - Front and Rear
• Heating Source - Front heat exchange
• Maximum Water Temperature - 210°F
• T & P Valve Type - 100psi and 210° F
• Wiring Configuration - L1 and N
• Dimensions (W x H x D) - 13-3/4" x 13-5/8" x 19-3/4"

*Sold as an Individual 

WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Specifications:

• Gallons: 6
• Heat Exchanger: Yes
• Volts: 120
• Box Dimensions: 16"H x 17"W x 22"L WT: 21.7 lbs
• UPC: 014717118118