About how to choose an electric instantaneous water heater, everyone who has no centralized hot water in the apartment is thinking. Modern man is very dependent on how comfortable the conditions of his life. Finding an apartment in which you would not use hot water every day is difficult enough. To heat the water with a kettle or a kettle to wash, today there will be no one, and this is not necessary, because there are instantaneous water heaters for the apartment.
Variety of domestic water heaters
Modern water heaters are very popular since recently private housing has spread widely. In city apartments, these devices also found their significant place, because disconnections from hot water supply are not very rare in our cities. Moreover, many houses are not connected to it at all.
Water heaters industry produces on various types of energy consumed. The most widespread gas and electric. The former are most often used in private homes or in gasified city apartments, while the latter are more widely used, especially in the city. There are two types of water heaters for the apartment: flow and storage. Let us consider in more detail the first form, since it is much cheaper and less than the second.
Unlike the accumulative type boiler, which for a long time heats a large volume of water, a flowing electric water heater installed directly on the faucet does so in a matter of seconds. All this, thanks to the peculiarities of its design. The device of such a boiler is not very complex, so its description will be clear to everyone. Inside a small-sized case, which is of various shapes, there is a tank or a serpentine. In it electric TEN of big power. It can reach 5 – 7 kW, which is comparable with the power consumption of all other electrical appliances in the apartment.
Helpful advice! When it is finally decided to choose a running electric water heater, as the main one for providing an apartment with hot water, then be prepared for high energy costs. After all, only thanks to such high power, the device is able to provide instant heating of the water flowing through it.
The container with the heater has an inlet for cold water flow and an outlet for hot water. Water from the water supply system through flexible fittings, the diameter of which is 1/2, enters the heating capacity and, through it, has time to heat up very strongly. The degree of its heating depends not only on the power of the heating elements installed by the rheostat, but also on the intensity of the water flow. That is, if you open the tap strongly, the water will not have time to heat up as much as possible. At the exit from the heater, the water is supplied either directly to the faucet, which can be integral with the appliance, or completely to the entire hot water system of the apartment. There are models of instantaneous electric water heaters for the shower, which are popular because they have a watering can.
This is the main principle of operation of flow boilers. However, their work would not be so convenient and comfortable, if not auxiliary elements. Any heating device, first of all, is equipped with a special relay that protects against overheating. It shuts off the heating element when the permissible temperature is exceeded. This can occur for various reasons, for example, as a result of lack of water in the system or too low head.
Helpful advice! If there was an emergency shutdown of the water heater as a result of the operation of the thermal relay, you must call the wizard, as written in the instructions. However, if you know how to handle electrical appliances, and the warranty on the water heater has already expired, you can unlock it yourself by pressing the button reset, which is located inside the device on the thermostat housing. Before you make this manipulation, the device must be turned off from the network.
Before you choose an electric instantaneous water heater, ask the seller about the presence of automation in it. This system allows the machine to start and stop the device as a result of the flow of water through it. The sensor installed inside the device registers the beginning of the movement of water through the pipe. This happens when the hot water tap is opened. The sensor sends a signal to the automatic control unit, which instantly closes the circuit and turns on the heating element to the power set by the manual resistors.
Water heater for giving bulk with a heater: water supply with comfort. General device. Purpose, types, characteristics and manufacturers. Installation and operation, security measures.
Having understood the principle of operation and the internal structure of water heaters of a flow-through type, one can note their advantages and disadvantages:
- The main advantage is that this type of device is very small. In certain circumstances, this is of great relevance. Some models can even be installed inside the kitchen, without interfering with anything;
- very rapid heating of the water jet to the desired temperature level. This property is popular with those who need hot water immediately and in small quantities;
- very low price on most models of these devices.
If it is decided to choose a flowing electric water heater, how is it permissible not to know about the drawbacks of the device? The main disadvantage of this device is high power consumption. However, if you do not often use hot water, then these expenses will be fully justified. The second disadvantage is that the temperature of hot water is very difficult to regulate. This is especially true where pressure in the water supply system is not constant and its jumps are observed. Heating depends on the flow rate, so it is necessary to adapt each time the pressure changes.
Helpful advice! When installing a instantaneous water heater, make sure that the pressure level in the water supply system is always stable. Otherwise, refuse to buy this type of devices, since pressure drops can lead not only to their emergency shutdown, but also to burns. One solution to this problem is to install a water pressure regulator.
When you come to the store to buy a water heater, you should already know exactly where you will have it installed. If you want to put a running electric water heater on the faucet for washing dishes, then buy a model that does not have too much power and is installed directly above the sink. There are species that are mounted instead of the usual sink mixer. The crane is located directly in their housing. Such devices do not consume a lot of electricity, but their power is absolutely sufficient for the function of washing dishes.
If it is necessary to connect the appliance in the bathroom, in order to wash it, a more powerful appliance is required. The instantaneous electric water heater on the shower, as a rule, is already equipped with a flexible hose with a watering can, which eliminates the installation of additional equipment. Its power is calculated on the functions it performs.
Helpful advice! When using instant water heaters for showers, follow safety precautions. Make sure that the temperature is stable before entering under water. In the shower should be the possibility of an emergency shutdown of the flow of water to avoid burns when the pressure drops in the system.
If you suppose to provide with the sufficient amount of hot water the whole apartment, including the kitchen and the bathroom, then acquire a powerful productive appliance that can support the simultaneous flow of at least two taps. When buying, you should not forget about the manufacturer of the product. After all, no-one-known trademarks can not only break quickly, but also pose a certain danger when used. Remember that this is a device with very high power, which is coupled, with a well-conducting electric current, water.
So how to choose an electric instantaneous water heater is from which, then you need to take this very seriously. First, the main condition is safety. Secondly, it is necessary to choose the most optimal power. Thirdly, the device must meet the intended purpose.