Missouri Wind and Solar

8 5/16 inch Folded DC Submersible Water Heating Element

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  • Folded DC Submersible Water Heating Element
  • Folded DC Water Heating Element Terminals
  • Water Heating Element Bulkhead Fitting


Heat water faster with these curved water heating elements - Increased surface area reduces water heating time!


Can be used direct with batteries, solar panels, hydroelectric generators, as a wind turbine dump diversion load.

You can run high voltage through the element as long as you don't exceed the rated wattage of the element.


Can also be used as a solar panel dump load.

Element Specifications:

  • Tube diameter is 8 mm

  • Tube length is 7 inches (177.8 mm)

  • Foldback length is 3.94 inches (100 mm)

  • Overall length is 8 5/16 inches (211.1 mm)

  • Fits standard water heaters with a 1" NPT or your own custom heater tank.

  • Stainless steel materials

Volts & Wattages:

  • 24 Volt 300 Watt Model

    • can also be wired for 12 Volts 80 Watts

  • 48 Volt 600 Watt Model

    • can also be wired for 12 Volts 40 Watts

    • can also be wired for 24 Volts 160 Watts

    • can also be wired for 36 Volts 360 Watts

  • 48 Volt 1000 Watt Model

    • can also be wired for 12 Volts 60 Watts

    • can also be wired for 24 Volts 250 Watts

    • can also be wired for 36 Volts 600 Watts


  • Livestock water tank deicer (low amp draw means you won't drain your battery as fast). For keeping dog, cat, chicken, and other domestic animals' water from freezing.

  • Standard American water heater element replacement for on or off grid applications

  • Water preheating

  • Campers, motorhomes, and RVs

  • Emergency hot water

  • Portable commercial, industrial machines and equipment

  • Runs off your car battery for portable hot water anywhere

  • Direct wind and solar applications

  • Cement mixing trucks

  • Use for DIY solar batch water heaters

  • For heating motor oil, vegetable oil, or most any other oils or liquids

  • and many, many more uses where heat or diversion loads are needed.

Question: How many watts are required to heat one gallon of water up one degree?

Answer: It requires 2.4705 watts for one hour.

DC water heating elements are much safer than 110 volt




Heat water directly using a wind turbine generator (with or without a battery bank). Wind turbine generators are used primarily for electricity generation.

The power used can be stored in a battery bank or connected to the mains supply using a suitable grid tie inverter. In very strong winds, and/or when the batteries are fully charged a wind turbine may generate more current than the batteries can handle.

Therefore a dump load is often used to divert the extra energy to heat water so it is not wasted and so that the wind turbine does not spin so quickly that it is damaged.
Note: If you have a gas hot water heater you may wish to put an electric unit ahead of it. This way the gas heater is always being fed hot water so it does not turn on as often and for shorter periods of time when it does.

Diversion Load DC Water Heating

Pictured below is a typical 12 Volt water heating element which can be screwed into an immersion heater draincock hole. When used as a diversion (dump) load, such an element is connected to the batteries via a charge regulator. When the regulator detects that the batteries are fully charged, it diverts the generated electricity to the element which heats water.

DC Element Diagram

Click here to read more information about DC water heating elements.

DC Water Heating Element Alternate Wiring Diagram

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