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Checking the functionality and replacement

Posted: Sun Feb 09, 2025 6:25 am
by zihadhosenjm40
Dry or closed
A closed or "dry" heating element for a water heater is a heating element isolated from the external environment in a special ceramic flask, to which increased strength requirements are imposed. The flask of a closed heating element is made of magnesium silicate or steatite, and the heating element itself is made of stainless steel. Therefore, water heating in a boiler with a closed heater occurs through heat transfer by the casing.



Photo of a dry heating element

The closed design of heating elements is safer, as electrical short circuits are completely excluded. They:

Easy to maintain;
Have a long service life;
Economical;
Easy to repair.
The closed ceramic flask heating element for the water heater is a single fragment, and its surface is a reliable heat transmitter. The tank and flange of the closed heater are protected by an enamel coating, which prevents scale formation. Therefore, the service life of dry heating elements is three times longer than wet analogues.

The disadvantages of soapstone heaters include spain mobile databasefact that they are not universal. They are manufactured specifically for each type of boiler model, taking into account that it will be replaced with the same heating element.



Water heater device diagram

Experts claim that the service life of the heating element of the boiler is four years. The main reason for its failure is hard water. Therefore, to increase the service life of the water heater, it is necessary to carry out special preventive maintenance annually in the form of cleaning the heating element and anode from settled dirt and scale.

The first sign of the heating element's failure will be the activation of the electrical protection and the lack of heating. Its functionality can be checked in two ways.