Gas flow-through water heater (column)
Just make a reservation, do not be afraid of yourselfthe name "gas column". We are not talking about those devices that used to stand in apartments-Khrushchevs. Modern gas appliances are fundamentally different from the previous ones and have their own special advantages, and above all it is a stylish design and high efficiency. In general, the gas water heater, in general, does not differ from the electric one. If you look at some of its features, you can be sure that it is even better in something. For example, many have already noted his economical work, taking into account the tariffs set for gas. What should I focus on when choosing gas columns? First of all, on power. If, for example, you plan to use hot water at the same time in the kitchen and in the bathroom, you should purchase a unit with a large capacity (24 kW). If this is not necessary, then stop the selection on medium-power heaters (18-19 kW). Pay attention to the manufacturer, preferring well-known European brands. As a rule, such water heaters are made of high-strength, high-quality materials with a number of advantages. Only a high-quality gas column has an automated ignition system and a smooth adjustment of temperature conditions. Equally important is reliability. Pay attention that even the best quality gas columns are optimal in price, which makes them especially attractive for customers. Is it true that such a gas heater is very demanding in the care and with it there is a lot of trouble? This can only be said about obsolete options, for inclusion of which it was necessary to perform a sequence of operations: turn on the column itself, turn the handle to the side, light it with a match. With modern units, everything is easier - you just need to press the button, and the machine starts to work. The second misconception, because of which many refuse to purchase gas columns, is fear of explosions. The practice of using such devices had time to prove that only old columns explode, which today have lost all relevance. However, gas people still recommend periodically checking the gas column to avoid any problems during the operation of the device. To poison yourself with gas is also unlikely. The ignition burner is necessary here in order, on the contrary, to prevent any leakage and, consequently, poisoning. The gas itself will never reach the burner before it lights up, since the gas tube is blocked by a special safety valve. This valve is activated if the gas is not lit. Taking into account all that was said above, one can be sure that modern columns exclude gas leakage. One can not but mention the design - many people believe that the columns in the city apartment look terrible, spoiling the interior. This is another erroneous opinion. Modern speakers look stylish, laconic, have a form that fits the design of any city apartment or country house. However, there are some problems in the operation process. For example, the fact that the column sometimes stops turning on. Why is this happening? As a rule, the whole thing in the elements of food, the validity of which is calculated for six to twelve months. Accordingly, the problem is solved very simply - you just need to replace the batteries. Sometimes gas columns stop heating water or water is heated, but very weakly. Here, the problem is in the defects of the membrane, which is located directly on the water node and does not react properly to the head of water. Among the defects can be noted cracks, salt deposits, various kinds of pollution. In order to determine the problem, it is necessary to disassemble the water unit and disconnect it from the gas, and then clean it. Then the membrane is replaced with a new one. 
Boiler - electric water heater
The second and most popular type of water heater- A boiler. This is a kind of heat exchanger that allows you to warm up to 75 degrees and maintain this temperature regime by means of a thermostat, which is responsible for a special heating element - the heater, including turning it off. Now let's look at the features of this device and find out how to choose the right type of water heater. The boiler has a clear advantage - saving energy. It does not require a special connection - just a simple socket. In addition, having installed such a device in your apartment, you can use it at the same time in the kitchen and in the bathroom. In order for the water to heat up, the boiler, unlike the gas heater, needs some time, and compact it can not be called. These are two drawbacks, which are easily compensated by the advantages that the boiler still has. Speaking about the parameters of the boiler, it should be noted that recently we started to produce models of more compact, convenient dimensions, which are suitable even for the smallest room. Such boilers can be placed even under the sink, which is very convenient. When you choose such water heaters, always pay attention to the parameters, so that later there is no inconvenience. Do not forget that the boiler requires special maintenance. From time to time, clean up its water heating elements, where lime scale is collected due to bad water. In addition, you need to periodically replace the magnesium anode to prevent corrosion of the inner tank. The boiler itself is a direct analogy of the thermos. Due to thermal insulation, it retains heat, thus saving electricity. If you heat water in the evening, it will still be hot in the morning. You can independently adjust the temperature of the water: strongly heat and along the way dilute it with cold water or simply heat the water to an average temperature. Choosing a boiler, focusing on the capacity. When the volume of the tank varies from ten to fifteen liters, such a device is enough only to wash dishes or wash. This option is not for you and you get a boiler to take a shower several times a day? Stop the choice on instruments from fifty to eighty liters. And if you can not imagine an evening without a hot bath, then buy a boiler with a volume of 150 liters. The main rule when choosing a device - consider your personal needs. Volume is not the only criterion to be invoked in choosing a boiler. Today there are water heaters that work from several sources of energy. As a rule, they are acquired by owners of cottages or cottages, where the heating system is autonomous or centralized. However, for an apartment such a device does not make any sense. The design of boilers differs. They are horizontal and vertical, depending on where and how you want to place them. However, vertical boilers are more popular, which are usually placed in bathrooms or toilets.
Choose a heater: wet or dry?
The heater is a heating element similar toa boiler, lowered into the water. Differences only in size. Heating elements are dry or wet; which one is better and is there a significant difference? Probably, you saw such teapots, the heating element of which is a whole bottom, and not a spiral. Approximately the same situation with a dry tenh, where the heating elements are directly behind the walls of the tank, heating it, and not water. Accordingly, the requirements for water and its quality are reduced, because the TEN directly does not come into contact with it. In addition, there is no scale on the TEN, which quickly disables the device and reduces its functionality and efficiency. And most importantly, in the case of dry TEN there is no chance of its breakdown, which threatens the fact that a person can even get under stress using a boiler. Wet TEN - this is the same spiral, lowered into the water. The main element is a nichrome spiral placed inside a copper tube filled with quartz sand. The minus is obvious - constant contact with water, respectively, the formation of lime on the heater, plaque and a higher probability of breakage. In terms of safety, this heater also gives way to dry.
Flowing water heater (electric)
Finally, another type of water heater- flowing electric. Usually, these devices are installed in those rooms where they use electric stoves, because for its installation there will not be enough wiring power. If you decide to choose a water heater of this type in an apartment with a gas stove, then stop the choice on a lower-power device. There are several obvious advantages: unlimited hot water supply, simply open the tap. No preliminary preparation is also needed. No need for constant maintenance. This is already enough to stop your choice on such an aggregate. But in order to instantly heat up a huge amount of water, it will take a lot of electricity. This may be the only drawback of a running water heater. Having decided to buy such a heater, think about what exactly you need it for. Everything, as in the first two cases: your power depends on your needs, which can vary from 3 kW to 27 kW. For example, if you use a similar technique in order to wash dishes or take a shower, enough 8 kW. But in order to take a bath, you need at least 13 kW - this device needs a special wiring with a voltage of 380 V. Here, without additional consultation, a professional can not do - do not economize on this. By the way, if you are planning to place such a device in a country house, a specialist's consultation also does not hurt. If you have selected a flow-through water heater correctly and have chosen the most suitable instrument for you, then hot water will be available to you at any time. Features of instantaneous water heaters:
- Small size;
- Instantaneous heating of water (enough seconds);
- Heating unlimited amount of water;
- Easy installation and dismantling;
- Independence from water quality;
- Pleasant price;
- High power;
- Difficulties in posting;
- The action is directed to one particular water supply location;
- Limitations in the head of water.
If, in spite of some peculiarities, youdecided to purchase such a water heater, then be sure to pay attention to the class of its protection. Such information the manufacturer indicates on the package or in the passport that is attached to the device. The information is represented by two IP letters and a combination of two digits, for example IP31. The first digit is an indication of the level of protection against penetration of foreign objects into the heater. The number 1 means protection against penetration of large bodies (but no more than the hand), 2 - protection from objects with a thickness of a finger, but no more. Accordingly, 3 - protection from objects no more than 1 square. mm and 4 - no possibility of contact even with dust. The second figure is the indicator of the stability of the hull to contact with water. 0 - no protection. 1 - protection against water droplets that fall from the top. 2 - protection against rain, if the angle of water spray is not more than 60 degrees. The number 3 means protection from splashes of all kinds and from all directions, and 4 - protection from water even in the form of a jet. Be sure to pay attention to such data. Concluding the consideration of the question of how to choose a water heater, it is important to note that it is always necessary to make a choice in favor of a device that meets your requirements originally set. If you need a horizontal boiler, it makes no sense to acquire a vertical boiler and suffer with the question of how it is more convenient to place it. The same can be said about TEN. Give preference to quality safe European models that combine not only good quality, but also a thoughtful stylish design and an optimal price. And then you will always be provided with hot water without any problems!
