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Marine Water Heaters

If you’ve been considering replacing the marine hot water heater on your boat – you’ve come to the right place! Fisheries Supply offers a full range of boat hot water heaters in a variety of sizes at competitive prices from trusted brands like Torrid, Raritan, Isotherm, Seaward Products, Quick and Kuuma. We also stock pressure relief valves, anodes and other accessories to keep your marine water heater running in top condition for the long term – so shop today and save!

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3 items in this product group
By: Whale
6, 11, 20 Gallons | Stainless Steel | Horizontal Fitting

1 item in this product group
By: Whale
20 Gallon | Galvanised | Vertical Fitting

1 item in this product group
By: Whale
20 Gallon | Stainless Steel | Vertical Fitting

3 items in this product group
By: Whale
6, 11, 20 Gallon | Galvanised | Horizontal Fitting

3 items in this product group
By: Whale
6, 11, 20 Gallons | Stainless Steel

2 items in this product group
By: Whale
6, 11 Gallon | Galvanised

6 items in this product group
Superior TIG Welded Aluminum Inner Water Tank

1 item in this product group
By: Whale
Suitable For Outboard Boats

5 items in this product group
By: Torrid
Maximum Volume, Minimum Space

1 item in this product group
Three Installation Positions - 4.2 Gallon

8 items in this product group
Composite Casing with 316 Stainless Steel Tank

4 items in this product group
Fast, Efficient Heating

4 items in this product group
115/230V AC | 750W Heating Element

1 item in this product group
750W/115V | USA Plug | 11 gal/40 liter

7 items in this product group
Basic SS Marine Water Heaters

4 items in this product group
Slim SS Marine Water Heaters

5 items in this product group
Fresh Water Will Heat up 5-7 Times Faster

11 items in this product group
By: Torrid
Horizontal Models

1 item in this product group
By: Torrid
Vertical Models - Over 20 Gallons

8 items in this product group
By: Torrid
Vertical Models - Over 20 Gallons

1 item in this product group
By: Torrid
Vertical Models - Over 20 Gallons

5 items in this product group
By: Torrid
Vertical Models - Up to 20 Gallons

12 items in this product group
By: Torrid
Vertical Models - Up to 20 Gallons

2 items in this product group
By: Torrid
Vertical Models - Up to 20 Gallons

8 items in this product group
By: Raritan
Durability Blends with Efficiency

1 item in this product group
Black PVC Shower Bag

1 item in this product group
By: Torrid
3/4" Valve | Add 50% Water Heater Capacity!

1 item in this product group
Selectable Temperature Plumbing Valve

1 item in this product group

1 item in this product group
By: Raritan
Ignition protected | Replacement thermostat | 1700 series

1 item in this product group
By: Torrid
3/4" NPT Replacement Valve

1 item in this product group
By: Whale
1/2" NPT Replacement Valve

1 item in this product group
By: Raritan
Fits 1700 series water heaters | 75 PSI | 210 degrees F

2 items in this product group
By: Raritan
Bolt-on or threaded | Gasket included

2 items in this product group
By: Raritan
Replacement anode | Magnesium | 6, 12 or 20 gallon models

5 items in this product group
By: Torrid
Andoes

1 item in this product group
Anode

1 item in this product group
Replacement TCV Hose

Results 1  - 38 of 38
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