The only undeniable disadvantage of a dry

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There are many references on the Internet to the fact that a dry heating element is less economical, since it first heats the surface of a metal tube and only that heats the water, however, such a statement does not stand up to criticism, since the main heating occurs deep inside the heated environment and heat loss from such an “indirect” effect on water is minimal, especially since the diameter of a dry heating element (usually 12 mm) is only a couple of millimeters smaller than the inner diameter of the tube, so the air gap is minimal.

You can also find references to the fact that the power of such heating elements is lower than the power of "classic" ones. Indeed, a powerful 2000 W spiral is much more impressive than dry ones, which are not stronger than 1200 W, but two "crackers" are usually installed in a water heater, and this is 2.4 kW, so here the minus is not at all unambiguous

heating element in a water heater is the price of the device as a whole. Thus, the minimum price of a Gorenje boiler for 50 liters with a regular heating element starts at $90, and for a similar device with a "dry" one - $120. What you get by overpaying these $30 we will describe below.

Advantages
Easy maintenance. Everything breaks and fails someday. To replace a sri lanka mobile database heating element, you only need a screwdriver to remove the plastic housing and unscrew the spacer screw. That's it, you can take the heating element out and insert a new one. To replace a "wet" heating element, you will have to drain the water, unscrew a special platform (flange), and if you have not removed and turned the water heater over before, the remaining water and scale will fall directly on you. Moreover, every time you carry out this procedure, you should change the gasket between the flange and the body of the water heater. And if only they were standard! But each manufacturer makes flanges with their own unique shape, and gaskets, accordingly, too. This is a very dirty and unpleasant job if you do it yourself and expensive if you hire a specialist for this;