Photo of a wet heating element

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The open type is made in the classic version, by analogy with the heating element in a regular household electric kettle. The heating elements of the water heaters themselves are in direct contact with water, so they are called "wet". If such an element fails, its replacement does not require complex work.

Design differences
To figure out which heating element for a water heater is the best, you need to specifically consider their design differences.

Wet or open version



"Wet" heating elements are in direct contact with the water in the water heater tank. These open heating elements are filled with magnesium oxide or quartz sand inside their hollow tube, which are highly heat-conducting substances. The basis of the wet heating element is a spiral-shaped nichrome wire.

Depending on the manufacturer, open heating elements have three main distinguishing characteristics.

According to the type of fastening, they can be spain mobile databaseor flange. Flanged elements, in turn, are made cast or stamped.
By the presence of an anode socket. A heating element for a water heater may, if there is a nut, not have an anode fastening, or have an additional fastening in the form of a thread on the flange.
In shape, heating elements can be straight or bent in different directions. This shape is determined by the type of the main water heating tank. In terms of materials, the most common products are made of copper and stainless steel.
Advantages and disadvantages
The heating element for a water heater with an open installation method has a high water heating rate. However, the quality indicators of water in our communication systems have a very negative effect on its service life.

Flange mounting of open heating elements contributes to the appearance of electrolytic corrosion and limescale on them, which significantly reduces heat transfer and leads to greater energy consumption. These heating elements are affordable and do not have an increased level of safety. The surfaces of the water heater heating element tubes are covered with vitreous enamel to protect against corrosion processes.