Instantaneous electric water heater for shower: how to choose, rating of the best models

What is an instantaneous electric water heater for a shower: general information

Such a device is different from the usual large tank boilerswhich, moreover, are of great value. This is a compact device, inside of which, when supplied, water passes through heating elements, and its temperature instantly rises. The device is quite convenient for a country or country house. A flow-through electric heater for water is not able to regulate the temperature; you need to do this yourself, adding or reducing the pressure. The stronger the water supply, the lower its temperature, and vice versa.

Instantaneous electric water heater: principles of separation by type

Flow-through electric water heaters can be divided into types according to the following parameters:

1. Installation site - they are installed on the shower, on the water tap.
2. How it works - pressure, non-pressure flowing water heater.
3. Control method - mechanical, electronic.

Each species has its own characteristics, which we will now consider.

Separation of similar water heating devices at the installation site

Despite the similarity of the principles of operation of heaters for a tap and a shower, there are some differences between them. Let's try to understand how essential they are.

Electric instantaneous water heater for shower: features and nuances of use

These devices are like a small box, usually fixed under the sink. 2 hoses are connected to it, one of which supplies water to the device, and the second leads to the shower already heated. The temperature, as already mentioned, is regulated by the pressure of the water. Of course, the choice between a storage and instantaneous water heater for a shower is ambiguous - everyone has there are pros and cons, however, for a summer residence where no one lives in winter, the flow-through version is suitable more. In addition, it can be easily dismantled and transported to another place, which cannot be said about the tank of a storage boiler.
INTERESTING TO KNOW!

Recently, nozzles-heaters for shower water have appeared on the shelves of Russian stores. They look like an enlarged nozzle installed instead of a watering can. The Tehno.guru edition does not undertake to judge its longevity, but the fact that it functions well is already a proven fact.

Instantaneous electric heater on a tap: what is the difference from a shower device

Such devices can be divided into 2 types - mixers and faucet nozzles. The first are devices that look like an ordinary mixer, slightly increased in size. In addition to powerful heating elements, it is equipped with:

• protection against water hammer;
• a pressure sensor that turns off the heating element when the pressure in the system rises above 0.7Pa or if the pressure is below 0.004Pa;
• flow sensor and thermal relay - if the water is unexpectedly turned off, these devices will save the heating elements from burnout;
• automatic fuse - will cut off the power in case of a short circuit or a power surge.

Separation of devices according to the principle of operation: a very important point

According to the principle of operation, these devices are divided into pressure and non-pressure flowing water heaters. There are fundamental differences between them, which we will now analyze in detail. After that, the dear reader will most likely have no questions about the type of hot water pipe.

Pressure electric instantaneous water heater: features and scope

A pressurized instantaneous electric water heater is a more powerful device that allows the connection of several water intake points. It can be a bathroom, kitchen, shower. Such devices can be single-phase (up to 12kW) or three-phase (up to 27kW), with top or bottom connection. This allows the appliance to be installed under or over a sink. Such household instantaneous electric water heaters are installed in private houses or apartments that are not equipped with hot water supply. The device turns on only when there is pressure in the system, hence the name - pressure head.

Non-pressure water heating devices: where they are used

Non-pressure flowing water heaters for a shower or a tap are used in the country or in garden houses. Their power is much lower, so only one water intake point can be connected through them. This can be a washbasin faucet or a shower head. Most often they are designed as a mixer, but they can look like a separate unit. The power of such free-flow devices does not exceed 8 kW.

The way to control the flume: what it can be

The control method for such a device can be mechanical or electronic. The cost of the water heater will largely depend on this. Let's try to figure out what is more profitable to buy.

Mechanical control is a familiar and familiar option to everyone

We will not talk a lot about mechanical control, everything is clear here. We turn the tap, water begins to flow. The stronger the pressure, the lower the temperature of the tap or shower water. The cheapest, but at the same time the least economical option.

Electronic devices - compared to mechanics

Such devices are an order of magnitude higher, but those who purchased them say they have made the right decision. Saving energy on the face. What's the trick? And the fact is that electronic models allow you to set a certain temperature, regardless of the water pressure. The smart electronic unit will reduce the voltage supplied to the heating elements, thereby saving energy, and very significantly.

Of the minuses, besides the high cost, there is one more - if something in the electronic device fails, the entire unit will have to be changed, but it costs a lot. However, this happens very rarely.

Pros and cons of electric instantaneous water heaters on a tap with a shower

For the convenience of the information perception by the dear reader, we will combine the information on the advantages and disadvantages into one table.

How to choose an electric instantaneous water heater: Tehno.guru editorial advice

Choosing an instantaneous water heater is not an easy task. It should be approached with all responsibility. You should start by defining the scope of use of the device in order to determine the type - pressure or gravity. Next, we determine the power of the device and the number of phases. If it is decided to purchase a pressure device and a voltage of 380V is supplied to the house, then the choice of a three-phase flowmeter will be optimal. Despite the fact that its cost and power consumption are higher, the end result can be lower power consumption, no matter how unexpected it may sound. Especially if expensive electronic equipment is purchased.

If the heater is to be used in a country house or in a garden house, it is quite possible to get by with a cheap, low-power gravity heater. As for the brand and model, we will consider the highest quality ones in our review.

Which electric instantaneous water heater for a shower is better to buy: an overview of models

Which instantaneous water heater to choose - this question torments many summer residents, villagers and even some apartment buildings in the villages. Now we will consider several instantaneous electric water heaters with characteristics, prices and reviews. This should help our readers make the right choice.

Budget, but high quality option - "Electrolux Smartfix 2.0 5.5 TS"

A device with a horizontal bottom line. Equipped with a faucet, shower head, shower hose, plugs into regular 220V sockets. Let's look at the characteristics of the model.

Quite good indicators for its value. However, characteristics alone are indispensable. Let's refer to user reviews.

Electrolux Smartfix 2.0 5.5 TS

Three-phase "Timberk WHE 12.0 XTLC1" with wall arrangement

This device requires mandatory grounding. Its weight is small - only 4.2 kg. Due to the 380V power supply, it has a fairly high power. Able to provide hot water supply to a large family living in a private house.

Thanks to electronic control, great energy savings are achieved, which is becoming very important with electricity prices today. Let's look at the owners' reviews of the model.

Timberk WHE 12.0 XTLC1

Another three-phase device that deserves attention is "Electrolux NPX 18-24 Sensomatic Pro"

More powerful device. Here we are already talking not about 2-3 points of water intake, but about a much larger number. The device is capable of heating water up to + 60˚С, which is quite enough for household needs. You can program 2 heating temperatures - for yourself and for the child.

This productivity is enough for a family of 5 or more people living in a country house with several bathrooms. But specifications are one thing. It is much more important what those who have already purchased such equipment say.

Electrolux NPX 18-24 Sensomatic Pro

The latest model for today is "Timberk WHEL-7 OSC"

This is again a free-flow instantaneous water heater at a democratic, budgetary cost that everyone can afford. Its weight is only 1.19 kg, which allows the device to be suspended at any height. The lower eyeliner also contributes to this.

There is even a bonus in the kit water filter, which is necessary for some regions. Using filter the durability of the device is increased. Here is the opinion of the owners of such devices.

Timberk WHEL-7 OSC

Nuances of connecting electric flow heaters

The main task is to understand whether the electrical wiring of the house is capable of withstanding the power consumed by the electric heater. If there is the slightest doubt, it is better to play it safe and draw a separate line from the introductory shield with your own machine gun. The grooves are mounted in different ways. Some are connected directly inside the case (in this case, we look at the contact markings), others require the installation of a socket (with one or three phases). The algorithm of actions is as follows: first, a line is drawn (without connecting to the mains), it is switched with a flow-through water heater, and only after that the power is connected. It is very important!

IMPORTANT INFORMATION!

Never connect to the mains without disconnecting the power from the input machine! After disconnecting, check the line with an indicator screwdriver - the machine may not work. Remember, electric shock is dangerous to health and life.

Operation of instantaneous electric water heaters: basic rules

There are only four basic operating rules:

1. If the water is too hard, filters must be installed. Otherwise, heating elements quickly fail.
2. If the temperature in the house has dropped below freezing, use of the water heater is prohibited.
3. When using the device in a sauna, do not expose the heater to drops of moisture.
4. It is necessary to periodically inspect the supply wire and contacts for heating - this will save you from fire.

Electric instantaneous water heater for shower: user reviews

Here are a few reviews of real users - owners of such devices. These reviews can be trusted for two reasons - they are taken from the largest resources, and the editors Tehno.guru tries to take into work only reviews left by users with a high positive rating.

Conclusion

There is no doubt that in the country or in a private house without hot water supply, a flowing electric water heater will be an indispensable assistant. Most of the Internet users agreed that the flow pipe is much more convenient than a storage boiler, in which water can run out at the most inopportune moment, and its cost is much higher.

We hope that the information presented in today's article was useful to our dear reader. If you have any questions on the topic, ask them in the discussions below - editorial team Tehno.guru will definitely answer them as quickly as possible. We also ask you to share your experience of using instantaneous water heaters, if any. This will be useful for those who are just making their first choice. Write, share, ask, communicate. And finally, we suggest watching a short but very interesting video on today's topic.