Issues related to hot water supply are relevant not only for owners of country houses, but also for residents of large cities. Accumulative electric water heaters are designed to provide hot water supply in the absence of centralized water supply. It is worth considering the principle of operation of these devices.
Cumulative electric water heaters: how they work
With the existing variety of proposals, it should be said that these devices work on a similar principle, which is quite simple. Water enters the tank, which is heated by means of a heating element, and the set heating temperature is maintained automatically. The consumed water is replaced by a new batch coming from the water supply. Usually the maximum water temperature is kept at around 75 degrees. With the optimal mode of operation of the device, heating is carried out up to 60-65 degrees. Through suchtemperature regime, it is possible to ensure a comfortable water temperature, while reducing heat losses to a minimum. The heating rate depends entirely on the power of the installed heating element. The most common are storage electric water heaters, in which heating elements with a capacity of 1.5-2 kilowatts are installed, and the tank volume is up to 150 liters.
If the volume of the device's tank is larger, then a more powerful heating element will be required, and the water heating time becomes a little longer. For example, if a heater with a capacity of 1.5 kilowatts is installed in a water heater for ten liters, then heating will occur in 20 minutes, if the tank has a volume of one hundred liters, but the heater is installed in it, then heating will be done in three hours or more.
Storage electric water heaters: how are they arranged?
The device of this device is similar to the device of a thermos. The outer casing is separated from the inner tank by a layer of heat-insulating material. Thanks to this design, it is possible to avoid heat losses by maintaining the temperature of the water in the heater. In addition to heating elements, the devices are equipped with a thermostat, check and safety valves, as well as a magnesium anode. The thermostat takes on the task of turning the heater on and off, as well as maintaining the water temperature at the set value. Magnesium anode is designed to prevent corrosive processes in the inner tank. The non-return valve is designed to prevent the reverse movement of water, which guarantees the safety of the heating element from burnout. SafetyThe valve guarantees the release of excess pressure. Both valves are usually combined in a single body.
The floor-standing storage electric water heater is a device that is installed on the floor surface, while it is no different from a wall-mounted solution. I must say that the materials from which the inner tank is made are subject to increased requirements, since it is heated during operation, and this leads to corrosion. Stainless or enameled steel is best suited for this. Electric storage water heaters "Electrolux" meet these requirements.
