Choosing a bathroom boiler. Instantaneous electric water heater for a shower: types, tips for choosing and a review of the best manufacturers Electric water heating boilers for a bathroom

Repair of heating systems, interruptions in water supply - situations are familiar to many. Of course, an hour or two can be tolerated. And if the repair is delayed? There is already a need for a water heater in the bathroom. The installation of this device is able to completely solve all problems with interruptions. hot water... But the market for goods offers many water heating systems. This article will help you choose the right device.

There are several types of bathroom water heaters, which can be classified into three types:

• gas water heater in the bathroom;
• electric water heaters;
• indirect heating devices.

Gas heaters are known to us as "columns". If they are installed, the owners have assessed their effectiveness. 16 liters of water heats up in one minute. If it is possible to install it in the house, it is preferable to opt for this type of water heating. Owners of private houses are in an advantageous situation.

But in order to install a gas boiler in the bathroom, you will need a chimney in the house and a lot of approvals and permits from regulatory organizations. Better to choose electrical systems. They can be divided into:

1. Storage water heaters using a boiler.
2. Instant water heating systems.

In storage systems, water is heated with a heating element. But in order to heat the boiler, heating elements of another type can also be used. In flow-through water heaters, heat exchangers of various designs are used to heat water. The choice of electric water heaters must be approached very carefully. Here it will be necessary to take into account several conditions:

• how many people live in the house;
• how water is consumed;
• the condition of the wiring.

By the way, about the wires. If the house is old, then, most likely, it will be necessary to replace the supply wiring with a grounding device.

Storage water heaters

It is the storage system (boiler) that has become widespread in Russian apartments. They can warm up cold water and serve hot or for the whole apartment, or just for the bathroom.

The boiler is appreciated by the consumer for its low energy consumption and the presence of a certain supply of already heated water. Of the shortcomings that the boiler has, it is large in size to provide supplies of boiling water for a small family of three. The water heater in the bathroom can be chosen in a variety of designs and shapes. They may differ in technical characteristics (for example, water consumption) and appearance. The spread in energy consumption is usually small - 1.4-2.5 kW. But the design and design can differ significantly between different types.

To choose a boiler, you need to pay special attention to its durability. To a greater extent it depends on the heating element - heating element. By design, they are divided into two types:

1. Boiler with dry heating element (in this version, the heating element does not come into contact with water).
2. Water heaters for a bathroom with a "wet" heating element, has direct contact with tap water. Such devices have a shorter service life due to constant contact with the city water supply, which contains various impurities.

Flow-through water heating systems

If you want to provide an apartment with an alternative source of hot water, you can pay attention to flow systems. They differ in three types:

1. Stationary flow systems. They are mounted as a separate element, as they have a larger volume and require a separate installation space. This can be the space under the bathroom, or under the sink. The latter is equipped with a decorative curbstone, in which the entire water heating system is successfully "hidden".
2. Water heaters in the bathroom as a tap attachment. This versatile device fits over the mixer tube in front of the swivel neck. For the needs of washing or for cleaning dishes, such a design is ideal, but such a device cannot provide a bath or shower.
3. Faucet with electric water heating. New type of heating device for instantaneous water heater. Has its own mixer for water. The water heats up in the same way as in the nozzles, but much faster (depending on how much the cold water supply is open). It is quite possible to apply such a system in conditions where there is no hot water. For example, in summer cottages. It will not be possible to wash in the bathroom (the water will cool down), but it is quite possible to take a shower. Such a device is inexpensive, it is installed by the efforts of its own home “craftsman” and is characterized by low power consumption. Such a water heater in the bathroom has been gaining in popularity lately.

Preparing for installation

To begin with, before purchasing and installing a boiler, it is worth considering the connection system and designating the place where the entire structure will be located - in the bathroom itself or in the adjacent toilet.

If you decide to do the installation on your own, then it makes sense to prepare the necessary tools for work in advance:

• measuring tool,
• hammer drill,
• a set of keys,
• a flat or Phillips screwdriver (a set is better),
• pliers with wire cutters.

To connect the water supply and withdrawal system from the bathroom water heater, prepare in advance:

• tow with fum tape,
• plumbing fixtures (3 taps for storage devices and 2 taps for flow-through),
• tees (the number is determined based on the type of connection),
• metal-plastic pipes or special connecting hoses.

Most likely, you will need to either change the electrical / wiring or conduct a new one. For this purpose, you will need:

• three-core wires,
• fuse - automatic,
• socket.

We connect the water heater

There are two options for connecting a bathroom water heater: a temporary scheme or a permanent one.

With the temporary option, there are no difficulties. For this:

1. A tee is cut into the pipe with the supply of cold water.
2. A shut-off valve is installed.
3. Connect the shower or mixer to the heater outlet.

In any case, when installing water heaters for a bathroom, it is necessary to carry out a minimum of construction and installation work:

• The distance between the fixtures with which the boiler is equipped is measured with a tape measure and transferred to the wall.
• The puncher drills holes in the wall for anchor bolts.
• Anchor hooks are installed.
• The entire boiler is hung on the wall.

A flow-through water heater, when installed permanently, is most often done so that it works in tandem with common system water supply to the dwelling. For this, the work process takes place as follows:

• tees must be cut into existing pipes;
• stop valves are installed;
• connect the cold water supply pipe to the water heater above the bathroom (the connection point is marked in blue);
• connect boiling water from the boiler with metal-plastic pipes with a tee with a mixer;
• all connections are carefully checked. If there are leaks, they must be eliminated;
• open the cold water supply to the system and connect the device to the socket.

Everything - the house is provided with an alternative source of hot water. If a boiler is being installed, the work process is almost the same. The only thing - before turning on the boiler, you must let it completely fill with water. To remove air from the tank, both water inlet and water inlet taps must be open. If there are no leaks and the air is completely removed, the bathroom water heater is connected to the mains.

Now there is an idea of ​​how and how you can connect alternative hot water supply systems and with the installation of water heaters in the bathroom. For a more complete understanding of the installation process of a water heating device, you can watch the video and read the installation manuals supplied with the flow-through systems.

To solve the problem of constant hot water supply in the bathroom, the easiest way is to install an electric instantaneous water heater on the shower. It has significant advantages over a storage device, which we will take a closer look at in this article. We will also pay attention to the disadvantages, the main one being the need for a special approach when providing electricity.

Also in this material, we will provide recommendations for choosing a suitable water heater, including calculating sufficient power. We will designate the best manufacturers of electrical models, we focus on installation and maintenance. Indeed, for smooth operation, it is necessary not only to correctly calculate the parameters, but also to carry out the installation professionally.

The choice of a water heater for a shower between an instantaneous and a storage type of device is not always straightforward. Each of them has its pros and cons, and the solution in most cases depends on the capabilities of the power supply system.

Internal structure of the device

In the bathrooms, non-pressure water heaters are installed for one collapsible point. They are designed for a single consumer, have 1-2 heating elements and rarely exceed 8 kW. And, sufficient for the operation of such devices should be from 0.03 to 0.6 MPa.

The device is turned on when the flow sensor is triggered. The overheating sensor detects the water temperature and turns off the heating elements when it goes beyond the permissible range.

The indicator signals the user about the operation of the heating elements. If it is turned on, and the water is not heated, then this means a breakdown of the heating element - the most common problem with instantaneous water heaters.

The device of the Thermex instantaneous water heater does not differ from similar devices from other companies. However, when repairing, it is better to use original parts.

For all water heaters, the place for connecting the hose from the water supply is marked in blue, and for a shower head or tap - in red

The placement of sensors for water flow and its overheating does not allow the heated jet to pass in the opposite direction. Therefore, for the safe operation of the device, it is necessary not to confuse the connection points of the cold water inlet and the heated outlet.

Also, for many devices, a limitation on the maximum temperature of the incoming water is prescribed. As a rule, it is 30-35 degrees. If this value is exceeded, the overheating sensor will be triggered and the water heater will turn off. Therefore, it is impossible to connect the device to a hot riser of the water supply system, when, in the opinion of the consumer, insufficiently heated water flows there.

Advantages of flow models

The first advantage of the flow-through device is the significantly smaller size. Placing it in the shower room and installing it on its own does not cause problems, while finding a place for a massive storage water heater tank and it creates noticeable difficulties.

The second advantage is the significantly lower cost of a household instantaneous water heater intended for one point of consumption. Depending on the configuration and brand, the price range of such devices is 1,700 - 8,000 rubles, while the price of a simple storage water heater with a tank volume of 30 liters or more starts at 5,000 rubles.

Servicing and repairing storage devices must be done more frequently, and it is more expensive. In addition, not every consumer can carry out their independent installation and connection, which incurs additional costs for paying for the services of a specialist.

When using a storage water heater, the number of people must be taken into account when calculating the volume of the tank. However, if guests arrive, it may not be enough. The flow-through analog is devoid of such a drawback.

We have more criteria for comparing an instantaneous and storage water heater.

The nuances of connection and operation

For the trouble-free operation of an instantaneous water heater, you will need to study the principle of its operation and know the main technical characteristics of the device. There are also nuances of connection and maintenance that will avoid problems during its operation.

How to connect the water heater correctly?

There are water heaters with bottom, top and side water connections. In bathrooms, as a rule, the lower version is used. It is necessary to decide on the optimal connection method before purchasing the device, since it is forbidden to install it in any other position.

There are two ways to connect to cold water:

• to the shower connector of the faucet-shower switch;
• directly to the cold branch of the water supply.

The first method leaves the opportunity to use a standard water tap to obtain cold water bypassing the water heater.

In a user-designed plumbing system, shut-off valves cannot be used downstream of an instantaneous water heater. Otherwise, this will lead to its overheating, even if there is a shutdown function by the thermal sensor. Such a rule is directly indicated in the instructions for many devices.

A typical option for connecting a flow-through device to a cold water system. The shower switch and the faucet are located before the water heater, and after it the flow is free

According to the electrical safety requirements for hygienic premises GOST R 50571.7.701-2013, sockets for a voltage of 220 volts must be installed in the third zone (further in plan than 60 cm from the shower, bath or sink faucet) and correspond to the degree of protection IPX4 or higher.

At a distance of more than 3 meters from the water supply points, ordinary class sockets can be installed IPX1.

Despite the fact that the instantaneous water heater is designed for humid rooms and has good tightness, when choosing an installation site, it is necessary to take into account the undesirability of a direct stream of hot water. This is how the case heats up, which will negatively affect the tightness of the connections and the performance of the control panel. In addition, water ingress reduces the strength of the fixing device to the wall.

Fixing to the wall takes place using standard methods using screws. The device weighs between 1 and 3 kg, so no reinforced installation is required. Some owners do without fixing the device, but this does not need to be done, since there is a risk of falling and depressurization of the device during its operation, which is dangerous for people in the room.

Do you want to install a running water heater on your own? We recommend that you familiarize yourself with the installation instructions.

If it is not possible to install a water heater outside the bath or shower, then it must be placed as high as possible. In this case, the amount of water falling on it will decrease.

In addition to wiping the surface of the water heater with soapy water, periodic maintenance consists in changing the filter installed on the cold water supply.

For this, the following actions are performed:

• disconnect the device from the power supply;
• close the tap on the water supply;
• unscrew the hose;
• remove and wash the mesh filter;
• reassemble the device in reverse order.

For trouble-free operation, it is important to correctly configure the equipment.

The water temperature must be set in the following order:

1. Open the tap and wait for water to flow from the water heater.
2. Switch on the water heater. After 10 seconds, the temperature will return to a constant value.
3. If the temperature is not suitable for taking a shower, change it by adjusting the pressure and operating modes of the water heater.

After each action to change the water supply pressure or the power of heating elements, it is necessary to wait 10-15 seconds to establish constant temperature values.

We have provided detailed instructions for the operation and maintenance of the water heater.

Conclusions and useful video on the topic

Mounting to the wall, connecting the piping and starting the Electrolux Smartfix water heater:

An example of improper use of a water heater. The device is not secured, the tap is installed after the hot water comes out:

The calculation of the required power of the instantaneous water heater, its fastening and connection to the water supply can be done independently. The greatest difficulties are caused by the safe supply of power to the device. Choosing a well-known manufacturer will provide a quick solution to problems in the event of a device breakdown.

Do you want to ensure year-round availability of warm water in the shower by installing a flow-through model of a water heater, but friends convince you that such a solution is ineffective? Ask your questions under this article - the real owners of instantaneous water heaters will share with you their experience of use and their own opinion on the advisability of installing it.

Every person has a problem with hot water at times, and therefore, in order not to rely on centralized water supply and constantly have hot water in the bathroom, you should think about installing a water heater. We will tell you which water heater to choose for the bathroom right now.

Today we decided to slightly change the format of the article and not just talk about the advantages of certain water heaters and consider instantaneous and storage water heaters for the bathroom, but go straight to the readers' questions, which we can answer. So, questions and answers that will quickly guide you when choosing a water heater for a bathroom.

Which water heater to choose?

We suggest that you consider only two types of water heaters - instantaneous and storage... Immediately, we want to say that instantaneous water heaters are more suitable for a kitchen or bathroom for summer use, since you will not be able to get a standard strong pressure of hot water with their help. But, on the other hand, you can consistently get warm enough water, which can be rinsed, in which you can wash, and so on. If you are more interested in a relaxing bath or a large amount of hot water for other needs, we recommend you a storage water heater, but remember that there is one definite disadvantage - storage water heaters heat water for a long time.

Which instantaneous water heater to choose?

If you opted for an instantaneous water heater, then we recommend that you purchase a device according to the following criteria:

• Sufficient power to heat water;
• Convenient for installation shape and size of the water heater;
• Obligatory guarantees of the quality of internal materials of manufacture, certified production;
• Nice design of the water heater, because most often it is in plain sight.

Which storage water heater to choose?

When choosing a storage water heater, we advise you to pay attention to the following:

• Water heater power, water heating time, electricity costs;
• Tank volume, the possibility of heating water and maintaining the temperature;
• Automatic control - on / off when a certain temperature is reached;
• The quality of the internal equipment - tank, heating element, and so on;
• Protective functions of the water heater - automatic shutdown, check valve operation, etc.
• Warranties and documentation for the water heater;
• Appearance, shape, size.

What brand of water heater is better to choose?

Many of us are interested in which water heater company is better to choose? This is a correct and timely question, because we need quality and durability, practicality and ease of use, and therefore, it is necessary to focus on brands that have earned the trust of the consumer.

So which brand of water heater should you choose? We offer you the following options: Ariston, Atlantic, Delfa, Electrolux, Ferroli, Fregia, Garanterm, Combustion, Nord, Nova tek, Round, Termex, Termor.

Naturally, this is only a small fraction of the bathroom and kitchen water heater manufacturers you can choose from.

How to choose a water heater by type?

If we are thinking about which water heater to choose for the apartment, for using hot water in the bathroom and in the kitchen, then it is necessary to dwell not only on the external parameters and power of devices, but also on their types. Of all the currently available, we decided to choose only those that can be placed at home.

Choosing a gas water heater

It is good if at home it is possible to connect a gas water heater, because in many houses this is not allowed. If the permitting system passes, then you can constantly receive hot water at an affordable price.

The gas heater is installed directly near the gas source, that is, if you need hot water in the bathroom, it will come from the kitchen. Installation of a gas water heater is carried out only by specialists, in no case independently.

Choosing an electric water heater

An electric water heater is convenient because it is installed in any convenient place where you can arrange the supply of water to the tank and its intake. The distance can always be adjusted by the length of the pipes. Naturally, servicing an electric water heater in the bathroom will be more expensive than servicing a gas one, since appliances with high power consume quite a lot of expensive electricity.

The installation of an electric water heater (instantaneous or storage) can be done independently if you have already encountered the installation of such equipment and connection work.

Today we figured out many questions and found out which company water heater to choose, which one to define a water heater for the house - electric or gas, storage or instantaneous. It remains only to talk about the installation and connection of water heaters, which we will do in one of our next articles.

How to choose a water heater for a bathroom (video)

When choosing a bathroom water heater by type, be sure to make sure that it can be connected at home.

Which is better to choose a water heater: we draw conclusions

We believe that for use in the bathroom, where you will wash and rinse, take a bath and do fine washing by hand, an electric storage water heater is most suitable. It can always provide a certain amount of hot water that is required for use. If the hot water in the tank has run out, then it seems to us that waiting for it to heat up for a couple of hours will not pose any particular problems. Of course, you may have a different opinion, and we do not forbid you to think subjectively and do not impose our own opinion, but simply give practical advice.

2016-11-29 Evgeny Fomenko

To use hot water all year round, you need to install a bathroom water heater. Before choosing a specific model, you should understand their varieties. There are two main types of electric water heaters - instantaneous and storage.

Types and features of instantaneous water heaters

Instantaneous water heaters are of three types:

Moreover, all three types have a number of advantages:

• Small size. Great for small bathrooms. A good choice for Khrushchevs, small families and dormitories.
• Fast heating. The stream heats up within 30 seconds after being turned on.
• Easy to install. There are no special requirements for the wall on which the device will be located, no massive fixings are required.
• Possibility to use warm water without limit.
• Low price. The simplest models are inexpensive, starting at 3,500 rubles.

Disadvantages of flow-through heating devices:

• High power consumption. A fast heating rate is achieved through a consumption of 5-25 kWh. Some devices are deliberately not equipped with standard plugs so that they cannot be connected to household outlets.
• The water temperature depends on the pressure. To draw a large amount of hot water, you will have to not open the tap fully.
• The ability to provide only one draw-off point.
• Lack of warm water supply. Since they do not have a storage tank, hot water automatically disappears in the event of a power outage.

A stationary flow-through is suitable for a bathroom. electric water heater... It is enough for a shower, washing, hand washing and cleaning. It is also important to consider how many people will use it. If there are many users, it is better to choose more powerful models.

Features of storage water heaters

Boilers are a tank that accumulates water with a heating element inside.

Storage water heaters have a number of advantages:

• Less power consumption. Boilers heat the water and then only keep it at the right level. This does not require the device to work around the clock. In modern models, it is even possible to prioritize heating at night in order to consume electricity at a cheaper rate.
• Depending on your needs, it may suit you. If you are used to taking a bath, then you just need to choose a water heater from 100 liters. A small boiler is suitable for using the sink and shower.
• If the power goes out, you still have hot water in stock.
• You can set a comfortable temperature level in advance. In this case, you can safely dilute the water from the boiler with tap water using a mixer.
• Possibility of connecting several points of water intake. One device is enough to provide warm water for both the kitchen and the bathroom.

Cons of accumulative models:

• Large dimensions. This is especially true if you have a small bathroom.
• More complex installation. The boiler itself weighs a lot, plus it should be taken into account that it will be filled with water.
• Long heating. In order to heat every 10 liters of water, boilers will take 30 minutes. If the device has been turned off for a long time, you will have to wait at least an hour until the desired temperature.

When choosing a device, you should pay attention to three main parameters:

1. The form. Today you can choose a convenient tank shape for your premises. Flattened rectangular models look more convenient and beautiful. You can also choose the traditional vertical or horizontal layout. There are floor structures and which are mounted on the wall.
2. The material from which the tank is made. More durable models with a stainless tank. According to reviews, it can last about 10 years. Enamelled tanks are cheaper and less reliable.
3. Heating element design. Over time, scale builds up on the heating element, which must be cleaned prophylactically. Models with a closed heating element last longer, in them the heating coil does not come into direct contact with water.

It is best for a bathroom either a stationary instantaneous water heater or a storage boiler of the required displacement.

In the video below, see the general scheme for installing a storage water heater, as well as typical errors during installation and connection:

In this post, we will consider:

With the question of where to install a water heater, modern people do not have to rack their brains for a long time, since in our apartments there are only two more or less acceptable places for their installation - a bathroom or a toilet. But the question of which water heater is better to choose for the bathroom is faced by many people, and it is very difficult to get an answer to it. We will deal with this issue in this article together with the site - we will consider all existing household water heaters for their installation in the bathroom. Along the way, we will find the most suitable places for them.

Which water heater is better to choose a photo

It's no secret that almost all modern water heaters can be divided into two large groups - storage and flow-through. To be more precise, there is also a third group - the so-called alternative water heating systems, but we will leave them for a snack, since most people simply cannot afford them. Let's start with the most common storage water heaters.

Which water heater is better to choose: storage tanks

It is no secret that storage water heaters are the most common today - they are also called. Round or flattened containers can be found in almost every second apartment or house, and they are used for hot water supply for both the apartment as a whole and for supplying heated water to one single plumbing fixture. The main advantage of such devices for heating water is their relatively low power consumption and the constant availability of a stock of heated liquid. As for their shortcomings, then, undoubtedly, these are dimensions - in order to provide a family of three with hot water, you will need to hang a one-liter container on the wall.

A storage water heater for a bathroom can have a different design and differ from each other both in its technical characteristics (the main one is energy consumption) and in appearance. If in terms of electricity consumption they are almost all the same (1.5-2.5 kW), then by design and outward appearance the differences can be quite significant. As for the design features of such devices, the most important of them, affecting the durability of the water heater, is the type of heating element. In this regard, they can be divided into two types - boilers with dry heating elements (the heating element does not have contact with water) and a wet heating element. The latter serve much less, since salts and other water impurities destroy them faster.

Now for the installation site. As a standard, instantaneous storage water heaters are installed on the wall of a bathroom or. The disadvantage of this approach to business is two points: firstly, it significantly reduces the volume of the room (in most cases these are large containers) and secondly, it is not pleasant that such a weighty structure hangs over your head. In this regard, you need to pay attention to flat water heating tanks - they take up much less space and, we can say that they practically do not hang over your head. Moreover, they are much easier to install in a niche. The most interesting place in which I have come across a boiler of this type is under the bathroom - the solution is very interesting in that it allows you to use the wasted space for good. The thickness of such a tank is 300 mm - it will not fit under the bath in its pure form. But if you make a niche in depth, then it fits completely. The niche should be done as close as possible to the front side of the bath - in this case, there will be no problems when pulling it out of there, if necessary, during the repair or maintenance of the tank.

When asked which storage water heater is better for a bathroom, you can safely answer - flat. It can be easily placed both on and in a niche prepared for it, and at the same time it will not clutter up the room.

How to choose the right water heater: flow-through devices

In most cases, the high energy intensity of this type of flow-through device plays a role in people's decisions in favor of choosing a storage water heater - in order to collect half a bath of water with them, you will need to burn several kilowatts of energy. In addition, due to their design, they are not able to provide a supply of hot water. At this point, you need to look a little from the other side - despite the fact that the storage tank makes this stock, it will not work to use it. If there is no pressure in the water supply, then there is no water supply from the tank. Otherwise, the bathroom is most attractive. Among its advantages are compactness and almost instant water heating.

In this video you can see how an instantaneous water heater works.

Approaching the issue of how to choose a flow-through electric water heater, the first thing you need to pay attention to is the views. And there may be three of them.

It should also be noted that all instantaneous water heaters can be divided according to the type of fuel (energy) used - there are both electrical devices of this type and gas ones. The latter are better known as columns, and their efficiency is much greater - such water heaters are capable of heating up to 15 liters or more of water per minute. Naturally, if possible, it is better to choose a water heater of this type - it is fully capable of providing hot water to all consumers in a house or apartment. Another thing is that such devices cannot be installed everywhere - for example, in some apartment buildings chimneys are not provided for them. No matter how hard you try, no state authority will issue permission to install them.

How to choose an electric water heater is a serious question. And in most cases it depends on many factors - this is the number of people living in the house or apartment, their personal preferences (if you are not going to swim in the bathroom, then the simplest of the heaters will do) and even the state. Old communications simply will not withstand such loads, therefore, when installing flow-through, and, in principle, storage electric water heaters, you will have to think about new wiring.

Solar water heater photo

In conclusion, I will add only one thing - it would be wrong to ignore innovative technologies, which are also called alternative methods of heating water. Private sector residents have a unique opportunity to keep up with the times and enjoy free natural energy. Agree, it's tempting! For them, the answer to the question of which water heater is better to choose can be a solar collector - modern devices of this type are able not only to provide a house with hot water, but also to heat it in winter.