Water heaters for running water. Flowing electric water heaters: reviews, features and price

Many homeowners are thinking about how to choose a flowing electric water heater. Such models differ in smaller sizes and almost instantaneous heating of water. In contrast, the boiler is a larger installation. With this device, you can avoid the inconvenience of turning off hot water during maintenance work.

What is an electric flow heater?

A flow heater differs from a conventional boiler primarily in the absence of a drive. The water heats up only at the time of use. You can regulate the temperature of water heating by changing the pressure in the right direction. In addition, flow heaters consume less electricity, because they do not spend it on maintaining the temperature. Thanks to its characteristics, instantaneous water heater allows you to save space, energy and time.

The water heater is a small box, inside which is placed a tubular heating element - a heating element. The water heater works in the following way: water enters the device, and then into the compartment where the heating device is placed. Washing it, the water gradually heats up, and then enters the hot taps.

At the same time, the water temperature cannot be higher than the temperature of the heating device, so scalding hot water will not have to be expected.

Expensive devices have a control panel with various sensors and timers. Inexpensive models are equipped with a thermostat that allows you to set the heating temperature. Some devices do not have a control system - they work only in automatic mode.

To install an electric instantaneous water heater, a wire is required that goes separately from the shield. You also need a switch that can operate in automatic mode. The wire must be of a strictly defined section.

The flow storage requires a sufficiently powerful network to operate. Otherwise, you will have to choose a device whose power does not exceed 8 kW.

Types of flow type heaters

Before choosing flow electric water heater, it is worth knowing the varieties of this device. This will determine which heater to choose for use.

The flow type electric water heater can be of the following types:

• pressure;
• non-pressure.

Pressure, or system, can be used in different conditions, that is, from any tap that is in the house. Pressure water heaters cut into hot and cold water pipes. Such devices have only an outlet and an inlet for water. The device is controlled by water pressure. System heaters are convenient to use during a planned shutdown of water in the summer.

Non-pressure are characterized by low power (up to 8 kW) and energy consumption. They work from only one water intake point. Such heaters are suitable for shower or use in the country. The maximum heating temperature is 30°C, which makes them useless for use in winter.

All year round, such water heating devices are used only in warm countries, where temperature fluctuations are not so significant.

The cost of such devices is usually low. The set may include shower heads and faucets. If the water intake point is far from the heater, then it is better to install another one close to it - this will significantly save money.

Heater power calculation and selection criteria

After deciding on the type of device, select optimal power. To do this, you need a table that indicates all the necessary parameters depending on the type of daily needs: flow rate and volume of water, required temperature, etc. Calculation according to such a table can be difficult, therefore it is recommended to use a simpler method: just look at the heater power in the documents and divide this figure by 2. The result will be a flow rate of water heated to 30 degrees.

For clarity, you can use an example. If the power of the one you like flow heater- 16 kW, then the water consumption will be 16/2, that is, 8 m / min. That is, for the soul, this value is sufficient. Thus, a lot of hot water can be obtained only if the indicator is more than 8kW.

If hot water is needed not only for the shower, but also at other points, then when choosing a heater, you need to take into account the indicators in the most powerful of them. If you plan to simultaneously use water at these points, then the heater power must be increased by at least 1.5 times.

Heater Selection Criteria

Before buying a flow heater, you need to decide for what purposes it will be used and where it will be installed.

If you need a water heater for seasonal use in the country, then a device with a power of 3.5 kW will suffice. For permanent use, a heater with a power of 5 kW or more is more suitable, capable of heating even cold water in winter.

When choosing a heater, it is important to pay attention to the quality of the material from which the body is made. The device is constantly exposed to high temperatures. The best way- the flowing heater with the enameled case. Such a device will withstand the temperature and exposure to aggressive substances contained in the water.

A copper case is also a good option, because it has a durable case and protection of the heating element from scale. In conditions of work in hard water, such protection will last more than 5 years. A light will signal that it is time to replace the protection. Such devices with a copper case are very different high cost.

Tankless Water Heater Manufacturers

Having decided on the parameters, you can proceed to the choice of a specific model. Instantaneous water heaters are produced by the following manufacturers:

1. Electrolux is a well-known Swedish manufacturer that produces several lines of flow heaters. Instrument performance may vary. All models have a high-quality anti-scale heating element. Models of high price segment equipped with an intelligent control system.
2. Kospel. A distinctive feature of the water heaters of the Polish company Kospel is a stylish design, thanks to which the devices always harmoniously fit into the interior. The heating element is made of high quality copper. Kospel manufactures mainly flow type pressure heaters. There are two lines of non-pressure heaters. Price after-sales service low enough.
3. Thermex. The bulb of the heating element in the heaters of this company is made of high quality copper.

When choosing a brand, it is also necessary to take into account the purpose of the device. If a flow heater is purchased for use in the country, you should take a closer look at the models of the Electrolux or ATMOR brands. Appliances with low power (from 3.5 to 5 kW) will perfectly cope with the heating of water for the kitchen or shower in the country. This does not require major wiring repairs. The cost of heaters of such brands ranges from 1.5 to 2 thousand rubles, but in any case they are available even to buyers with strong limited budget.

The most comfortable models for home

For home use, Thermex appliances are suitable. They are not so expensive, within 7 thousand rubles, they are equipped with a temperature controller. For reliable operation of the heater, it would be advisable to upgrade the wiring.

When choosing a heater for active use throughout the year, you should not choose the cheapest option.

All expensive models have only one requirement - operating conditions. Wiring in the house must withstand at least 20kW. The network is needed at 380 V, so before you connect the water heater, you have to make a serious wiring repair. It is not recommended to mount the heater yourself.

When choosing a flow-type water heater, first of all, you need to find out the capabilities of the power grid and clarify whether you need optional equipment to install the device.

When a model is selected, it is worth clarifying whether spare parts are on sale, it is necessary to evaluate the scope of work.

Many urban residents are familiar with the age-old problem of seasonal shutdown of hot water supply. And it’s good if the temporary discomfort lasts only a couple of weeks. It happens that this period is calculated in months. For country estates, you will have to take care of heating the water on your own for the entire season or even a year. In such situations, one of optimal solutions- use of electric water heaters. The best instantaneous electric water heaters are in our today's rating.

Criteria for choosing an instantaneous electric water heater

The list of relevant parameters is not particularly large, but each of them is of no small importance. Competent selection of characteristics is the key to the efficiency of the water heater, its reliability and makes operation truly comfortable.

Device type

There are two main types of flow models:

• Non-pressure. Simple and compact devices designed for only one point. They are convenient to use with low or unstable pressure in the plumbing system. The best and inexpensive option for a water heater for summer cottages or as a temporary source of heating when hot water is turned off in summer;
• Pressure. Often they are also called systemic. They are connected to the water supply, work under pressure and can be used to service one or more points of water intake.

Power

The heating capacity of the device and its performance directly depend on this parameter. Optimal value can be determined by the formula:

P=Q x (T1-T2) x 0.073.

Q is the volume of water passed in l / min., and T1 and T2 are the inlet and outlet temperatures, respectively.

There is a simpler method: to get water heated to about 35 ° C, you need to multiply its planned consumption per minute by 2.

Type of heating control system

Few options:

• hydraulic. The temperature is controlled by the pressure of the water;
• Electronic. The required parameters are set on the display and controlled by the control unit by adjusting the power when the pressure changes.

Equipment

The characteristic is more relevant for inexpensive non-pressure water heaters. Nozzle options: faucet only, hose with shower head, faucet + shower. Models up to 3.5 kW are equipped with an electrical cord with a plug having a grounding contact. For more powerful varieties, the cable is usually not provided in the kit.

A water heater is a device used to heat water in a water supply system. The need to install a water heater is due to frequent problems with hot water supply from utilities or to provide domestic hot water country house with autonomous communications.

When choosing the type of heater for a novice user, first of all, it is necessary to build on the conditions of its use. For private houses, the living area in which is disproportionately larger than in standard apartments, manufacturers (and experts) recommend purchasing storage boilers.

But flow heaters are best purchased for placement in apartments. They use a powerful copper heating element, which manages to heat the water as it flows through an isolated circuit. In this unpretentious way, you can get huge volumes of hot water. Another advantage of instantaneous water heaters is their compactness and the possibility of placing on the wall or in a special cabinet, which is very important in conditions of limited space.

Unfortunately, such installations are not without drawbacks. Firstly, the high power of the heating element implies high flow electricity. It's one thing when we heat one draw-off point in a small apartment. Another thing is when it is necessary to provide several points with hot water. In this case, the water simply will not have time to heat up, but if you choose a powerful water heater, the electricity costs will definitely not please the owner of the house.

To date, the production and sale of instantaneous water heaters and boilers indirect heating engages in many companies that are very popular among the mass consumer. However, not all models of the famous series have the right to be called the best. After carefully researching the market, we have selected for you the 12 most best water heaters marked good reviews ordinary users and authoritative experts. The following criteria were taken as the basis for the rating:

• popularity of the manufacturer and model line of heating installations;
• reliability parameters and performance characteristics;
• vastness of functionality, abundance of protection circuits;
• the presence of design features;
• price match the overall build quality.

The best manufacturers of water heaters for the home

• Most a large assortment water heaters are offered by the Italian company Ariston. It produces more than 300 models of both storage and instantaneous water heaters. The main advantages of their models are power, strict design, compactness and ease of installation.
• Another Italian brand "Thermex" is famous for producing some of the most affordable water heaters. Their models are famous for their good design, economy and the best value for money. It is not for nothing that Thermex water heaters are one of the best-selling in Russia.
• Timberk is a very famous Swedish manufacturer of climate control equipment. The company's production bases are located not only in Europe, but also in China, Russia, South Korea and other countries. Timberk water heaters are, first of all, quality (case materials), performance and reliability. But the price is far from the lowest on the market.
• The German brand "AEG" produces some of the most reliable and modern water heaters. The degree of protection against water they have one of the highest among competitors. Also, AEG water heaters stand out for their compactness, very light weight and low power consumption. But, you will have to pay well for the quality, so not many consumers will like the price.

The best electric instantaneous water heaters

Electric water heaters are the most common, as they can be installed anywhere where there is electricity. In view of the problems with connecting gas in remote communities, electric heaters are, in fact, the only option for homeowners. In maintenance, electric models are much simpler than gas ones, but the payment for electricity is higher than for gas.

It is worth considering another important point. Low-power water heaters are easy to install - they only need to be plugged into an outlet. But when connecting a device with a power of more than 5 kW, a separate electrical wiring and installation of a fuse are required.

5 Atmor Basic 5

Cheapest water heater Best heating efficiency
Country: Israel
Average price: 2,138 rubles.
Rating (2019): 4.5

With all the skepticism of consumers who somehow came across the products of this company, we simply could not get past one model. Atmor Basic 5 is the cheapest and at the same time the most productive (among small) instantaneous water heaters for houses and apartments. With a power consumption of 5 kW, it is able to heat up to 3 liters of water every minute, leaving a direct competitor from Electrolux out of work.

But, despite such "peppy" operational parameters, there is a certain range of nuances regarding the parameters of reliability and ergonomics. Firstly, Atmor Basic 5 lacks everything that can be missing on the front part - only the power switch is placed on it. Secondly, even with the provided two-level protection (against turning on without water and overheating), there are no guarantees of its long work. However, reviews of consumers who still ventured to purchase this heater indicate the opposite.

4 Stiebel Eltron DHC-E 12

The best indicator of reliability
Country: Germany
Average price: 31,200 rubles.
Rating (2019): 4.7

Stiebel Eltron DHC-E 12, although one of the most expensive instantaneous water heaters on the market, shows outstanding results in the reliability component. Made in Germany, it fully meets the expectations of consumers, which the latter are not averse to writing about in numerous reviews.

It is worth saying that the DHC-E 12 is not the most powerful model in the series, and certainly not the most productive. 10 kW power of a copper heating element allows you to get up to 5 liters per minute of water with a temperature of at least 60 ° C. It is also noteworthy that the pressure in the installation allows you to connect several points of water intake. The heater is controlled mechanically, has a built-in thermometer, display and temperature limiter. The only one for real significant disadvantage Stiebel Eltron DHC-E 12 is the cost level. For the same money, consumers can buy a washing machine, a good refrigerator or a fully functional laptop. This is the real value of superior quality.

3 AEG RMC 75

Country: Germany
Average price: 15,100 rubles.
Rating (2019): 4.7

AEG RMC 75 is an electric instantaneous water heater from the industrial giant AEG is considered one of the most reliable on the market. The model outperforms competitors in performance (here it is about 5 l / min) and energy consumption. The device is connected to a standard 220 V network and is not picky about the quality of wiring due to its low power consumption, which allows it to be installed even in old apartments. A convenient heat limit function allows you to control the outlet water temperature, and the on indication will tell you when the machine is working.

In the reviews, the advantages of the water heater include ease of installation and high heating temperature (up to 55 degrees). Among the negative qualities, the price often appears, which depends on the dollar exchange rate, and the lack of a connection cable in the kit.

In terms of price-quality ratio, this water heater is the best in its class. Thanks to hard work and easy use, the device has earned the trust of many, as evidenced by a large number of positive feedback.

2 Timberk WHEL-7OC

The most compact electric water heater
The country:
Average price: 3020 rubles.
Rating (2019): 4.8

Instantaneous water heater Timberk WHEL-7 OC is characterized by relatively small dimensions and high performance, for which it was able to earn the trust of a large number of consumers. Thanks to a power of 6.5 kW, it is able to provide a flow rate of about 4.5 l / min, which is enough for comfortable use of hot water, even for taking a shower. The copper heat exchanger works as efficiently as possible and is able to last for a long time without needing to be replaced, and if you still need to repair any component, then finding it on sale will not be a problem.

In reviews of this heater, buyers most often talk about the best-in-class dimensions and low cost, as well as the presence of a water filter, which has a positive effect on the duration of the device. Among the shortcomings, one point of pressure is noted (connecting only one hose) and mechanical control, with which it is not always easy to set the desired temperature. In general, this model boasts a low price and good quality, and electrical power in conjunction with small size allow you to use it almost anywhere.

Which water heater is better to choose - instantaneous or storage? Each of them has its own clear benefits, and disadvantages, which will be discussed in the following table:

1 Electrolux NPX6 Aquatronic Digital

popular model
The country: Sweden (made in China)
Average price: 9750 rubles.
Rating (2019): 4.9

Electrolux NPX6 Aquatronic Digital is considered one of the most popular models of instantaneous water heaters. Despite the performance of 2.8 l / min, it consumes a ridiculous 5.7 kW of electrical energy, which is one of the best performance in class. Electrolux has always been famous for the quality of the materials used, and this water heater is no exception - you don’t have to worry about the fact that any element will fail.

You can hear mostly positive feedback from buyers. Among the advantages, the presence of several pressure points is noted, which allows you to connect more than one source of water, as well as simple electronic control with temperature setting modes. The water heater has an electronic display on which it is convenient to set parameters. The disadvantages include the upper water supply, which is inconvenient in those apartments where communications are located below. The electric heater works efficiently, and even with any pressure, the water temperature will be kept at a given level. The advantages listed above, as well as small dimensions and weight, combined with a low price, make this model in demand among buyers.

Video - installation of an Electrolux NPX6 water heater

The best gas instantaneous water heaters

Flowing gas water heaters - the most profitable devices for an apartment or small house. The cost of gas is several times lower than the cost of electricity. However, the disadvantage of gas heaters is the need for a gas network, as well as the difficulty in installing such devices. Due to the release of harmful substances during the combustion of gas, it is necessary to install good ventilation in an apartment or house.

5 Etalon A 10

Best price
The country: Russia (produced in China)
Average price: 4,420 rubles.
Rating (2019): 4.4

The inclusion of the Etalon A 10 in the list of the best flow models is not in vain, as the company really strives to produce “people's” heaters. The main "trick" of this instance is the level of cost. With an actual thermal power of 20 kW, the water heater produces up to 10 liters of water per minute. In this scenario, adding a little more useful features, Etalon A 10 could compete for the championship in the category, but…

... the most important “but” is the absence of the usual protection elements. There is no gas control, so you should be very careful when using the column. The model is controlled mechanically, there is a heating temperature limiter and an electric ignition function. In general, consumers are satisfied with the purchase, both for a private house (for one specific tapping point) and for a small apartment, especially considering the low price.

4 Roda JSD20-T1

User choice. High thermal power(20 kW)
The country: Germany (made in China)
Average price: 10,800 rubles.
Rating (2019): 4.6

Despite not the most outstanding performance in terms of performance, Roda JSD20-T1 is a worthy addition to the rating of gas instantaneous water heaters. The reason for this is simple: this model enjoys special love and popularity among consumers. The installation gives up to 10 liters of hot water per minute, provided that its power is 20 kW. There is a system of electric ignition and gas control. Basic information about the heating process is displayed. But main feature models lies in the design.

Roda JSD20-T1 is equipped with a turbine that performs two functions: forcibly removes combustion products to the outside and pumps air into the combustion chamber. The whole system is subordinated to a single controller, which comprehensively adjusts it to obtain a specific power and outlet water temperature. Actually, for ease of management and the presence of all the necessary functions, this model fell in love with a wide range of users.

3 Zanussi GWH 10 Fonte

Best functionality
Country: Italy
Average price: 6 332 rubles.
Rating (2019): 4.8

Flowing gas water heater Zanussi GWH 10 Fonte can be considered one of the most functional on the market. In addition to the power of 18.5 kW, providing 10 l / min of productivity, it has electric ignition from batteries in its arsenal. This allows you not to worry about the provision of the device electrical energy– it is autonomous and uses only gas as a resource. The device has an organic design and small dimensions, thanks to which it will successfully fit into the interior of any bathroom or kitchen. The copper heat exchanger is resistant to corrosion, but it is not recommended to turn it on “dry” - this can lead to failure of the heating element.

Customer reviews are mostly positive. They note reliability in operation and ease of operation. To negative moments carry only a slight noise during operation. The device has the best control system among competitors, consisting of a display on which it is convenient to set the water temperature, and a thermometer to control it. Electric ignition automatically turns on when needed. The heating rate is such that after switching on, warm water flows from the tap after 15 seconds. By the combination of qualities, one of best models in the gas heater market.

2 Ariston Fast Evo 11B

Max power
Country: Italy
Average price: 11,426 rubles.
Rating (2019): 4.8

The powerful gas instantaneous water heater Ariston Fast Evo 11B has gained popularity among many users of such equipment. The main advantage is the best in its class power, which is 19 kW. Thanks to this, the device is able to provide a high performance of 11 l / min for a long time. For example, such a device can be used to supply hot water during a bath. To distinctive features include the possibility of ignition from batteries - this is a big plus, since no electrical communications are required. The power indicator will tell you when the device is working and when it is not.

Among customer reviews, positive feedback is more often heard. Among the advantages noted ease of installation, a variety of security systems, such as gas control and overheating protection. Disadvantages according to users - not too high heating rate. In addition to the above qualities, the water heater has electric ignition, so there is no need to turn it on every time to start heating water. Low inlet pressure threshold - only 0.1 atm, allows you to install the device almost anywhere.

Video review

Which water heater is better to choose - gas or electric? Each of the heating methods has both its clear advantages and disadvantages, which will be discussed in the following table:

1 Bosch WR 10-2P

German quality
Country: Germany
Average price: 10,600 rubles.
Rating (2019): 4.9

The Bosch WR 10-2P gas instantaneous water heater is one of the most common models on the market. The device boasts a power of 17.4 kW, which is enough to heat water up to 60 degrees. Together with a capacity of 10 l / min, this allows you to comfortably take a shower. There are 2 versions of the water heater: to work with natural gas P23 and liquefied P31, thanks to which the device can be operated where there are no communications. Among competitors, the best in terms of the range of water pressure supplied to the inlet is from 0.1 to 12 atm., Which allows it to be installed on any water pipes.

AT positive feedback customers note ease of use and reliability in operation - this is a Bosch trademark. The disadvantages include factory defects on some models and the water heater body that is not resistant to corrosion. When buying, pay attention Special attention on the condition of the heating elements and in no case start the device without water - this can lead to the burnout of the heat exchanger. Despite not the most low cost, worthy option for purchase.

The best indirect heating boilers

Indirect heating boilers use the energy generated by a heating boiler or other similar devices. A special coil or tank is placed inside the boiler. Due to the built-in circulation pump the coolant constantly circulates in the tank, which serves as a source of water heating in the boiler. The main advantages of such devices are increased efficiency (in fact, the boiler itself does not consume anything), good thermal insulation, unpretentiousness (does not require constant attention), safety and long service life (up to 60 years).

The boiler is installed next to the heating boiler and heating, as a rule, occurs only when the heating is turned on. This is the main disadvantage of such devices. However, at correct installation heating system, this drawback can be avoided.

2 Baxi Premier Plus 150

The best heating rate. Heat exchanger "coil in coil"
Country: Italy
Average price: 40 370 rubles.
Rating (2019): 4.6

The second place in the ranking is Baxi Premier Plus 150, a rather expensive, but very efficient indirect heating boiler. The advantage of the device is that it quickly heats the water due to the unique design of the coil-in-coil heat exchanger. If the heating rate seems a little, not a problem - you can install an additional heating element (heater), which is immersed deep into the boiler.

Baxi Premier Plus 150 is compatible with absolutely all heating boilers, including condensation. The mounting method is universal, that is, the boiler can be placed both on the wall and on the floor. The tank capacity is more than sufficient - 150 liters. The weight of the device is only 30 kg, which will be appreciated by boiler installers.

According to user reviews, the Baxi Premier Plus 150 is characterized by high performance, high-quality and reliable operation. Water shortage will not be felt even in families of 4-6 people. According to some calculations, by saving electricity, the purchase of a boiler will pay off in 4-5 years.

1 Gorenje GV 120

The best ratio of price and quality
Country: Slovenia
Average price: 21,100 rubles.
Rating (2019): 4.7

The first place in the ranking is Gorenje GV 120, one of the most affordable storage boilers for indirect heating. Despite the low cost, the device is equipped with all protection systems, including overheating protection, reverse and safety valve. There is a thermometer, indication of heating and inclusion. The boiler can serve several points of water intake, which is convenient for the home. We note a good tank capacity of 120 liters. and a stainless steel heat exchanger with high corrosion resistance.

According to numerous user reviews, the device quickly heats water (no more than 20 minutes), has a built-in magnetic anode. Also, many appreciate the five-year warranty on the tank and, in general, a very affordable price. Cons Gorenje GV 120: heavy weight and unfinished instructions.

Such heaters perform one important function - heating water. It is difficult to overestimate the need for devices for this purpose, because the problem with the presence of hot water is strongly felt in city apartments throughout the summer. It is even more difficult for residents of private houses, they simply do not have a centralized supply warm water. But modern technologies help solve this problem with just one device, and you do not need to make a fire or heat water on a gas stove.

Today, manufacturers offer many options for water heating equipment, the equipment differs from each other in terms of the principle of operation and design features. The most popular options are gas and electric water heaters. Experts advise to make your choice in favor of electrical models, and in areas where there is no gas supply, there is simply no alternative to such water heaters. Among electrical appliances, by the way, there is also plenty to choose from, there are both storage and flow models.

Choice between gas and electric appliances

Now there are problems with the availability of gas only in some villages, and all cities are supplied with this fuel. Therefore, apartment owners are faced with a choice between gas and electricity. The first thing worth mentioning is that the cost of electricity is higher than the cost of gas, so electric instantaneous heaters are less economical than gas ones. But electrical equipment has its own important advantages: they do not need to equip a chimney, which is very convenient, and electrical equipment also works without fire, so it is safer.

In general, the gas is flammable and even explodes, so the use of such fuel is very dangerous. Of course, modern appliances are made of better quality, but gas is still not the safest substance. There are some nuances in the use of electrical equipment, its body must be sealed so that water does not get inside. Also, to avoid electric shock, it is better to use grounding.

Operating principle

The fact that the device really heats the water is understandable, but how exactly does it all work. There is a special heating part in the case - a tube, a liquid passes through it and its temperature rises to the required value. The power of such a part can be different, the temperature of the water that you get at the outlet depends on this characteristic. The more powerful the appliance, the warmer the water.

Models with power from 3 to 27 kW are on the market. The numbers say little about anything, so it’s worth saying which device, in which case it is better to use. So, for shower procedures, a 6-8 kW device is quite enough, it can heat water up to 40 degrees. But in winter period this may not be enough, because liquid is supplied, which is a little colder, and a device with a power rating of 12-15 kW is required. If you need not only a shower, but hot water throughout the house, then you need to focus on the power of the water heater of 15-20 kW. But it should be borne in mind that the amount of electricity consumption depends on the power, and, accordingly, utility bills.

The functions of the heating part can be performed by a heating element or an insulated coil. The main advantage of the second option is that scale from all kinds of salts does not settle on the element. But there are also drawbacks to the spiral, it is very afraid of air congestion and, if they occur, it can simply burn out. To eliminate this phenomenon, it is necessary to provide the element with protection against dry running.

Connecting the device is not an easy task, and it is better to entrust it to the masters. You can find specialists in a store that sells such equipment, they know all the features of water heaters and have experience in performing such work. By the way, the installation process is also quite expensive, because you have to buy various expendable materials including cable.

Advantages and disadvantages of instantaneous water heater

Each device has both positive and negative sides, and electric instantaneous water heaters are no exception. But it should be noted right away that the advantages of equipment of this type are much greater than the disadvantages. Unlike storage devices, the owner of the flow heater immediately receives water, and does not wait for it to heat up. Accordingly, electricity is consumed only when the water is turned on, and in storage systems, electricity is constantly spent to maintain the temperature.

The main advantages of a flow device for heating water:

• This equipment is very easy to use. The device automatically starts working when the water is turned on, and immediately turns off when the tap is turned on;
• The instantaneous water heater provides the user with an unlimited amount of water. At the same time, warm water is supplied very quickly, it can take from 30 seconds to a couple of minutes;
• The flow device does not require special care and regular maintenance;
• Such devices are small in size. The dimensions of the case are usually in the region of 30 by 15 centimeters. This allows you to install the water heater almost anywhere so that it is hidden from prying eyes and does not interfere with movement.

  Therefore, flow models are used even in small apartments;

• If you need hot water in a small amount, then the flow option will work much more economically than storage. Such a device does not need a permanent connection to electricity to maintain the temperature of the water;
• The cost of a flowing electric water heater is much less than the cost of storage models;
• Water in the process of heating completely retains its qualities, because the equipment does not provide for it. long-term storage in a container. This means that harmful bacteria do not multiply in the liquid, and there are no stagnations of water that adversely affect its quality.

When describing flow-through devices for heating water, it is worth mentioning the disadvantages that may incline you towards choosing storage models. So, the main disadvantages of the devices:

• Typically, such devices are equipped with low productivity, and at the exit you will get water with a temperature of 40 degrees, and this is rather warm than hot water;
• To get really hot liquid, buy the most powerful models, but get ready for the fact that they will consume electricity much faster;
• Also, a lot of electricity is spent at high water consumption, for example, when taking a bath, because in this case the device works for a long time. In such situations, it is necessary to act more reasonably and save electricity and water, which is not always convenient;

• Flow devices are quite demanding on electrical networks, they should only have a stable voltage. If your house was built a very long time ago and the quality of the wiring leaves much to be desired, then the use of a flow device will be impossible. It also makes no sense to buy equipment if power outages occur regularly. Sometimes for the installation of such a device it is necessary to separately lay power cable or even obtain special permits;
• It is very difficult for such devices to supply water to several points of intake at once. To avoid such a problem, it is better to buy a pressure version of the device, but it will require constant pressure in the system to pump fluid and will cost a little more.

Given all the shortcomings of this type of equipment, we can conclude that instantaneous water heaters are better suited for small apartments with low hot water consumption. For a private house in which several families live, it makes no sense to buy such equipment, it is better to purchase a storage model with an optimal capacity. There is a choice between vertical and horizontal devices. Floor models will better emphasize the interior of the room, but heated water and cold water will constantly mix in them, and this will further increase the rate of electricity consumption.

Varieties of instantaneous water heaters

Flow devices, in turn, are divided into two subspecies:

1. Closed (pressure). This option allows you to simultaneously provide hot water to several points. This means that while taking a shower by one family member, the second can safely wash dishes in the kitchen. True, there are certain conditions, for this it is necessary high rate pressure in the plumbing system. Such equipment can also work with conventional mixers, but experts recommend installing two-valve taps, this will eliminate the mixing of hot and cold liquid and save electricity.

1. Open (non-pressure). Water heaters of this type do not need high pressure and connected directly to the water intake point. Open devices are distinguished by a simpler principle of operation and a lower price.

Classification of water heaters by type of control

An important characteristic of the devices is their type of control, there are also two options for water heaters:

1. With hydraulic type management. Such control of the water heater will not be as accurate as with the use of electronic equipment, and the performance steps can only be adjusted manually using a switch that is installed on the tank (there are 6 steps in total).

1. With electronic system management. Water heaters of this type are equipped with a thermostat, which will monitor the temperature of the water and its heating. In such a situation, you only have to adjust the desired temperature of the liquid. The modern electronic control system makes the use of electric water heaters more comfortable and easier.

After studying the main characteristics of instantaneous water heaters, you will be able to determine whether you need such equipment or not. Of course, it is difficult to choose a device, you will have to spend money on it, and electricity costs will increase, but the constant availability of hot water in the tap completely covers these shortcomings.

First of all, you need to pay attention to the performance of the heating element installed in the device. The fact is that heating elements, small in size, should heat water to a temperature of 40 degrees in one minute. During this time, approximately 2-3 liters of water passes through the device. For this, the minimum power of the device must be 3 kW. True, it is better not to buy the weakest devices, they do their job poorly, the best option there will be a flowing water heater with a heating element of 7-10 kW.

When choosing heating equipment, you also need to pay attention to the body of the device. It is usually made on the basis of sheet metal. In most cases, the water heater is installed on the wall, and when used, the appliance is exposed to high temperatures and other factors. external environment. For an apartment, it is best to buy a device with a protective enamel coating. Such material will not be afraid to work in aggressive conditions, even household chemicals will not damage the surface.

Expensive instrument options are also equipped with all sorts of protective systems the heating element, in particular, is protected against scale. This function is performed by the anode, which, even when working with hard water, will protect the element for 6-7 years. When this period has passed, a special sensor will light up on the control panel, it will indicate the need to replace the anode.

Installation and connection

There are many devices on the market that differ in design, functionality and other features, but all have the following details:

• Device case;
• Heating part (most often - heating element);
• Terminal block;
• Special compressor;
• Equipment switch;
• Fluid temperature control system;
• Protective elements that exclude the formation of scale.

The procedure for installing and connecting equipment takes place in several stages:

1. Installation of a water heater on a load-bearing wall.
2. Connecting the cold water supply system to a special pipe, which is equipped with a tap.
3. Connecting the water heater to the mains.

You need to mount the device in a place so that it is then convenient to use and maintain it. For installation, one rule is distinguished: the water heater must be installed on the wall above the level of the head of an adult. If the device is mounted below the water outflow rate from the central system, then the water heater will simply fill with liquid, overheat and fail. Also, the device must be installed perpendicular to the plane floor covering. If the water heater is installed incorrectly, its service life will be very short. To do everything accurately, experts advise applying markings to the wall before installation.

After the instantaneous water heater is mounted on the wall, it must be connected to the water supply system. To do this, a water supply valve is mounted on the pipe. To eliminate smudges that may appear when the water supply system breaks, a pipe supply valve is installed on the device. Also, this element must be installed on the outlet pipe of the product. After the water supply to the heater is ensured, it remains only to connect it to a 220 V household network.

Features of operation of instantaneous water heater

Flow principle devices are convenient in that they can supply water in unlimited quantities. To get warm water, just turn on the tap and wait a minute. True, most of these water heaters work with one intake point, so taking a bath and washing dishes at the same time will not work. It is also worth considering that with a large pressure, the temperature of the liquid will not be the highest.

Installation of flow equipment is a very difficult and responsible task, because the device has a high power, and it is necessary to lay a separate electrical wiring for it. Installation that is carried out without taking into account the recommendations can lead to loss of light in the apartment or even in the whole house. Therefore, it is still better to entrust the installation to specialists, and to familiarize yourself with the nuances of operating the equipment.

In order for the equipment to work for a long time and efficiently, you need to pay attention to such points:

• To avoid large heat losses, it is better to install a water heater close to the main water intake point;
• AT high-rise buildings the water from the central system is very hard, in such a situation it is better to purchase special filters, this will extend the life of the heater and plumbing;
• It is forbidden to install a flowing water heater in rooms where the temperature drops below 0 degrees;
• If the water heater is installed in the bathroom, then this must be done so that water does not get on the surface of the body;

• With a weak indicator of water pressure in the apartment, you should not set the equipment to maximum temperatures, it may not turn on at all.

The procedure for starting the equipment also takes place in several stages:

1. First of all, you need to check the fluid level in the tap. If it is normal, then you can start the instantaneous water heater, if the level is low, you will have to wait a little longer.
2. After that, you need to check the water pressure.
3. If the water has not warmed up enough, then set the required temperature on the control panel.
4. After using warm water, close the tap and turn off the water heater.

Most models are equipped automatic system, and the first set settings are saved, the second time you just need to turn on the tap.

During operation, salt deposits appear inside the device, so experts recommend washing the filters from time to time under running water. If the pollution is too strong, then you will have to use special tools.

Popular Models

Atmor Basic 5

This instantaneous water heater is the most affordable option. Despite the low cost, users do not complain about the quality and efficiency of the device. The heater is equipped with two heating elements of 2 kW and 3 kW, two keys for adjusting the indicators. At total power at 5 kW, the device passes up to 3 liters of water per minute. There are special models for the kitchen or shower, as well as universal option. Such a device weighs only 2 kilograms, and costs 2500 rubles.

Stiebel Eltron DS 60 E

This model is capable of supplying heated liquid to only one point of water intake, and is equipped with an electronic control system. Most parts that come into direct contact with water are made from copper. High Quality. On the front panel there is a regulator that helps to set the water temperature. The weight of the model is a little more than 2 kilograms, and the cost is within 6500 rubles.

AEG BS 60 E

This version of the device can serve only one point of water intake, but is also equipped with electronic control. The temperature of the supplied fluid is controlled by a built-in microprocessor. The heating element is protected by a heat-resistant plastic flask. The weight of the device reaches 2.4 kilograms, and such a water heater costs about 8,500 rubles.

Powerful and versatile Stiebel Eltron SHD 100 S

The design of this water heater has its own characteristics, it can supply water to one or several water intake points at once. When you need a little hot water, the water heater works as a storage heater with a power of 3.5 kW. When the water flow is high, the device works as a flow device with a power rating of 21 kW. The water heater weighs about 40 kilograms, and its purchase will cost 100,000 rubles.

Video

Today, flow models of water heaters are in great demand among buyers. This is primarily due to their compactness. At the same time, they are not inferior to storage types in terms of performance. It should also be borne in mind that the power consumption of flow modifications is very low. There are quite a few manufacturers on the market.

Recently, the range of instantaneous water heaters has been greatly expanded. They differ in their characteristics and management. You should also take into account a rather serious variation in the price of goods. In order to understand how to choose an instantaneous water heater for an apartment, you should familiarize yourself with the main parameters of the devices in more detail. Additionally, you should know the main components of the model.

How is a water heater installed?

The inlet and outlet pipes are located at the bottom of the device. They may vary in diameter. Above the pipes are filters. Next, a special anode is installed, above which the heating element is located directly. Under the thermostat there is a special gasket. The mounting plate in the device is installed above the control unit.

Hot water is removed through a heat exchanger. The heating element probe is located near the flow sensor. Additionally, the water heater includes a housing, a power supply unit with a switch and thermal insulation sheets.

Important Device Settings

First of all, for instantaneous water heaters, the power of the device is taken into account. Additionally, the documentation indicates such a parameter as performance. Power supplies, in turn, have their own characteristics. In this case, it is important to note the limiting voltage and frequency of the instantaneous water heater. Pressure sensors in the device can withstand different things.

If we consider two-valve modifications, then the above parameter fluctuates on average around 3 bar. The protection system is most often installed class IP30. This tells the buyer that the power supply of the device is protected, and the model will not have problems with overheating. Another interesting indicator is considered to be maximum temperature. The last thing to note is the dimensions of the device.

How to decide on a purchase?

In order to understand how to choose the right instantaneous water heater for an apartment, it is necessary to assess the load that will be placed on the device. If no more than three people live in the apartment, then the maximum power of the model should be approximately 12 kW. All this will allow the performance parameter to be kept at the level of 3 liters per minute.

The maximum temperature must be at least 50 degrees. Also, the choice of instantaneous water heater for an apartment should be based on the parameters of the power supply. In the device, it is most often set to 220 V, and its frequency can be in the region of 20-30 Hz. If the house has certain problems with power surges, then it is better to select a model for 30 Hz. The protection system should be marked IP 30. It is better to select probes of an anti-corrosion type, because they can last for quite a long time. Heating elements are most often installed shielded type. Recently, however, manufacturers have also begun to produce steatite analogues. In this case, it is rather difficult to give preference to any modification.

If you choose a budget option, it is better to stay on a shielded heating element. In order for the master to easily connect the device to the water supply system, the inlet and outlet pipes must be 2.3 cm in diameter. A good instantaneous water heater will cost around 5 thousand rubles.

Reviews of the models "Electrolux"

Flowing water heaters (electric) for an apartment of the presented brand differ quite quality systems protection. According to buyers, the models are absolutely not subject to overheating.

Additionally, it should be borne in mind that their average productivity is at the level of 3 liters per minute. Thus, for large families, the models of the presented company are well suited, this is confirmed by users.

However, in terms of performance, there are also more modest instantaneous water heaters on the market. Their maximum power is on average 5 kW. They are very compact in size. As for the design, many say that everything is beautiful here, the lines are smooth. A good instantaneous water heater will cost the buyer in the region of 5 thousand rubles.

Advantages of the Electrolux 20T model

This instantaneous water heater for an apartment has good reviews. Many buyers choose it because of its high productivity at the level of 4 liters per minute. This model is suitable for a family of five. The heat exchange zone of the "Electrolux 20T" is very extensive. If we talk about the power supply, then it can withstand the maximum voltage of 230 V.

Thus, if there are certain overloads in the electrical wiring in the house, this device able to withstand them. There are only two modes of operation. If you believe the buyers, then the electricity consumption in this case is 3 W per hour. Many note precisely its frugality. The hot water outlet has a diameter of 2.5 cm. The thermal insulation of the device is installed with a thickness of 2.1 mm. The presented instantaneous water heater for the Electrolux apartment on the market costs about 4500 rubles.

This instantaneous water heater for an apartment is unique, and its power is as much as 12 kW. It uses a steatite heating element. Thanks to this, the performance of the device reaches as much as 4 liters per minute of use. The control of the instantaneous water heater is provided by a push-button type. There are three modes in total. The user can set the maximum temperature to 50 degrees.

The power supply is installed quite high quality, and absolutely not afraid of overloads. In this case, its operating frequency parameter is at the level of 25 Hz. The unit has a thermal switch. The heat exchange zone is quite extensive, and the thickness of its thermal insulation is as much as 1.5 mm. Under the thermostat, a protective gasket is provided by the manufacturer. Separately, it should also be noted the reduced noise level of this model. This was largely achieved through the installation of a high-quality casing.

According to buyers, during operation, the instantaneous water heater makes practically no sounds. There is also no vibration. The installation of "Electrolux 35S" is more than simple. The pipes in the lower part are standard, and are suitable for the plumbing system at home. Fastening to plastic outlets is permitted. This instantaneous water heater in the store costs about 5100 rubles.

Water heater "Electrolux 30S"

If you believe the buyers, then "Electrolux 30S" is the best instantaneous water heater for an apartment from budget models. Its heating element is of a shielded type. Its length is exactly 7 cm. The mounting plate in this case is located above the control unit. Due to this, manufacturers managed to significantly expand the heat exchange zone. It should also be noted that the performance of the model is quite good.

According to users, it suits well for a family of four. The maximum temperature on the panel can be selected 50 degrees. The power supply is programmed to switch two modes. This instantaneous water heater for an apartment costs around 4 thousand rubles.

Consumer opinion about Termex devices

For many models of the presented brand, thermostat gaskets are not installed. As consumers note, this element can wear out quickly, and this should be taken into account. If we talk about the advantages, it is important to note the high power of the device. However, its operating frequency parameter does not exceed 25 Hz. Mounting plates in instantaneous water heaters are installed the most common, and they withstand medium loads.

The blocks have thermal switches. Also, buyers note fairly high-quality regulators. In general, the models of this brand are distinguished by their versatility, and they have quite a few modes. Due to this, instantaneous water heaters can be safely called universal. A good model on the market will cost around 6 thousand rubles.

Features of the water heater "Termeks S600"

This instantaneous storage water heater for an apartment is valued by many buyers for its versatility. As mentioned earlier, the devices of the presented company have many different modes, and this instance is no exception. The user can select a maximum temperature of 50 degrees. The nozzles in this instantaneous water heater are provided in a standard size.

However, before buying, please note that plastic pipes it is better not to mount the device. This is due to the fact that the latches are installed quite rigid. In this case, the wear of the plastic outlets will be inevitable. This was noted by many masters involved in the installation of such equipment. If we talk about the benefits, it also deserves attention reliable system protection. It is installed in this case of type IP 30. Thermal insulation sheets in the device are used with a thickness of exactly 2 mm. The heating unit of the Termex S600 model is copper. This instantaneous water heater for an apartment costs about 5800 rubles.

New model "Termex W200"

Many buyers appreciate this instantaneous water heater for an apartment for its compactness. The performance of the device in this case is at the level of 3 liters per minute. All this became possible thanks to the installation of a shielded heating element. Its total length reaches 7 cm. All fasteners for mounting the model are included in the standard package. The diameter of the nozzle outlet is 2.7 cm. The probe at the thermostat is exactly 6 cm long.

The control unit in this case is a multi-channel type. In total, the device is designed for six different modes. Thus, the performance of "Thermex W200" will vary. When using turbo mode, the power consumption is exactly 3 W per hour of operation. The presented compact instantaneous water heaters for an apartment will cost the buyer in the region of 5700 rubles.

Review "Termeks S350"

If you believe the experts, then this model, among other devices, is distinguished by the presence of a shut-off valve. Due to this, this flow-through water heater for an apartment is able to withstand pressure at a level of 3 bar. It is simple in design, but it will look great in an apartment. The Termex S350 model weighs exactly 5 kg. Of the features, it should be noted first of all a high-quality thermal switch. When the system overheats, it helps quite well.

Additionally, it is important to mention the quality of the control unit. In total, the device can be selected among seven different modes. The "turbo" function is also available, some users consider this a significant advantage. The user is also able to operate the presented instantaneous water heater in an economical mode. The nominal productivity of the device is at the level of 3 liters per minute. For big family this model fits. Of the shortcomings, only the high cost of the goods can be noted. On the market, they ask for about 6100 rubles for it.

What do they say about the Vailant models?

Many models of this brand are equipped with manual switches. They use mesh filters. The outlet valve of the heat exchanger is capable of withstanding a maximum pressure of 4 bar. The casings of the heating elements are used quite dense. Due to this, their noise level does not exceed 45 dB. The protection system for instantaneous water heaters is available in the IP30 series. Thermal insulation sheets for models are used with a thickness of at least 2 mm. Protective gaskets are installed under the thermostats by the manufacturer. If we talk about the shortcomings, then experts mention a rather complicated setup of models. This is due to the fact that the control units have quite a lot of functions.

Probes, as a rule, are mounted precisely anti-corrosion. If the water in the house is used Bad quality, this is a big advantage. However, this element is displayed quite significantly on the price. Heating systems are mainly installed with a length of at least 7.5 cm. The cold water pipe has a diameter of exactly 2.3 cm. There are no flow sensors for water heaters of the presented brand. A good model will cost around 5400 rubles.

Water heater "Vailant VED12"

This instantaneous storage water heater for an apartment has mostly positive reviews. If you believe the buyers, then this model has a quality manual switch. The control unit in this case is a multi-channel sample. The owner is able to use the economy mode. The power consumption of the "Vailant VED12" is a maximum of 2 W per hour.

The performance of the presented instantaneous water heater is at around 3 liters per minute. This model has a mounting plate. According to experts, it is possible to mount the Vailant VED12 instantaneous water heater only on fittings. It has no flow sensors. Also of the shortcomings, a rather small cold water pipe should be noted. Due to this, the user may experience certain problems when installing the device on the wall.

Filters are provided by the manufacturer only with a mesh type. They are installed at the instantaneous water heater under the control unit. The owner is able to set the maximum temperature to 55 garus. Probes in this case are used with a special anti-corrosion coating. The presented flow-through water heater for an apartment costs around 5200 rubles.

Model "Vailant VED24"

If you believe the reviews of the owners, then the specified instantaneous water heater is ideal for a small family.

The probe is installed in an anti-corrosion type. In turn, the heating element is shielded, and its length is 7.2 cm. A protective gasket is installed under the thermostat. Thermal insulation sheets are used with a thickness of 2 mm. The control unit of the presented model has a multi-channel type.

This allows the user to select different operating modes. In this case, the manufacturer provides a push-button setting. This instantaneous water heater costs about 5 thousand rubles.