The growing popularity of water heaters is associated with the desire of people to take a shower in comfortable conditions all year round. The modern market for heating equipment offers a wide range of models. You can choose the most suitable option from them if you have all the necessary information in full.

So, all water heaters are divided into two groups:

• gas,
• electrical.

Gas models are not suitable for all premises and their installation requires additional permission and financial resources. This fact makes the most popular and purchased electric models, for the installation of which there are no such strict restrictions.

Electric water heaters

According to the principle of operation, the equipment is divided into:

• flowing,
• cumulative (boilers).

The choice of the device should be made depending on the needs of users in hot water. For example, to provide such needs as washing hands, a flow-through model will be enough, but a boiler would be the best option for taking a shower.

An instantaneous water heater in the bathroom is a small tank with a heating element inside: running water, got into the tank, washes the heating element and, having acquired the desired temperature, is supplied outside. The lower the water flow rate, the higher the leaving water temperature. The advantages of this equipment include:

• the possibility of supplying warm water in unlimited quantities;
• no need for regular maintenance;
• affordable price;
• compact size;
• ease of installation;
• higher efficiency in comparison with boilers.

The disadvantages include increased power consumption and the ability to provide one point of draw-off. In some cases, it may be necessary to lay additional electrical wiring and power the heater through the machine.

Accumulative models can have a volume of 10-150 liters and a power of 3 kW and more. There is a heating element (heating element) inside the equipment. The indisputable advantage of the storage water heater in the bathroom is economical energy consumption, together with the ability to connect the device to any outlet. When installing this unit, you get the opportunity to use simultaneously 3 points of water intake. The disadvantages of boilers include gradual heating of water. However, heating the liquid to the desired temperature, the boiler maintains it for a long time. From time to time, such a water heater needs maintenance, which consists in cleaning the heating element from plaque and replacing the magnesium anode, which protects the tank from corrosion. Considering the fact that today it is possible to purchase both "wet" (the heating element is immersed in water) and "dry" (the heating element is located in the flask and does not come into contact with water), it became even easier to solve the problem of scale formation on the heating element. Boilers with "dry" heating elements are more durable and reliable. The tank of the device can be made of plastic, ceramic, stainless steel or copper. The highest heat transfer is observed in equipment with a copper tank.

Boiler installation

Installation of a storage water heater in the bathroom can be vertical or horizontal. Horizontal installation is carried out in small rooms, in all other cases, vertical installation is preferable. Why? It's simple - in a vertical boiler, water is divided into hot and cold in a natural way. Lighter hot water rises up, while cold water goes down. The branch pipe for the intake of cold water is mounted at the bottom of the unit, the branch pipe is installed on top for the outlet of the heated liquid.

In horizontal models, the nozzles for cold and hot water are located at a considerable distance from each other, while the water in the tank is mixed and at the outlet does not have a predetermined temperature. As a result, it turns out that vertical models provide a more stable temperature.

Gas water heaters

Gas equipment is connected only through the permitting system. If such permission is obtained, the installation of the device must be carried out in the specified place, and exclusively by the forces of gas specialists. Self-assembly of gas equipment is strictly prohibited.

Gas water heaters are divided into the following groups:

• flowing,
• outdoor,
• double-circuit (wall or floor).

Flow-through equipment models (gas columns) are the most popular. With their help, you can very quickly heat a significant volume of water. The column is turned on when the hot water tap is opened, it is turned off after the tap is closed. But it should be borne in mind that for the operation of this device, a full-fledged chimney is needed. The comfort and safety of using the gas water heater is provided by a threefold protection system. In case of leakage, overheating or lack of traction, the unit shuts down automatically.

A floor standing water heater combines the advantages of a gas water heater and a boiler. Burner power can reach 26 kW, volume - 280 liters. Like the floor model, it needs a chimney device. The design and installation of such a water heating system must be carried out by highly qualified specialists.

Wall-mounted and floor-standing double-circuit boilers ensure the operation of the heating and hot water supply system. They are designed in such a way that if it is necessary to perform two tasks at the same time, one of them is carried out with a higher priority.

To meet household needs, the minimum productivity of the flow-through device is 4.5 l / min. If you decide to opt for a storage tank, then a 10-15 liter model is enough for washing dishes and hands, at least 50 liters for a shower, and 80 liters for hot baths.

For one user, a unit with a volume of 30-50 liters is enough for a shower, washing and washing dishes; to meet the same needs, a young family will need a heater with a volume of 80-100 liters.

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 discuss in detail 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 the calculation of sufficient power. We will designate the best manufacturers of electrical models, 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 shower water heater between an instantaneous and a storage type of device is not always straightforward. Each of them has its own 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, free-flow 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 turns 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 location of the water flow and overheating sensors 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 heated water 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 the simplest storage water heater with a tank volume of 30 liters 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, it will lead to its overheating, even if there is a shutdown function by a 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 tap) and correspond to the degree of protection IPX4 or higher.

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

Despite the fact that the instantaneous water heater is designed for wet rooms and has good tightness, when choosing an installation site, it is necessary to take into account the undesirability of a direct jet 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 is carried out 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 should 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;
• assemble 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. Turn on the water heater. After 10 seconds, the temperature will become constant.
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, you must 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 water supply and starting the Electrolux Smartfix water heater:

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

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 the device with electricity. Choosing a well-known manufacturer will provide a quick solution to problems in case of 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.

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 - this is a bathroom or a toilet. But the question of which water heater is better to choose for a bathroom is faced by many people, and it is very difficult to get an answer to it. We will address this issue in this article together with the site 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 both to the apartment as a whole and to supply 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 ensure hot water a family of three, 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 as technical characteristics (the main one is energy consumption) and appearance. If in terms of electricity consumption they are almost all the same (1.5-2.5 kW), then in terms of design and appearance, the differences can be very 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 device plays on 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 a 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 cannot withstand such loads, therefore, 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 unique opportunity 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.

The presence of a water heater allows you to constantly have warm water in an apartment or a country house and use it not only for taking water procedures, but also for other household purposes. In addition, due to this device, it is possible to save significant funds on utility bills.

According to the principle of water heating, heaters can be of two types:

• flowing... Advantages - the water heats up immediately after opening the tap. Disadvantages - low water consumption and high power. The minimum power is 5 kW, this consumption requires alteration of all electrical wiring, safety fittings and permission for connection from the owners of electrical networks. They are rarely used in bathrooms;
• accumulative. They can have a volume of up to 150 liters or more, with a capacity of 1–2 kW. The advantages are ease of use and availability. Disadvantages - increased heat loss. Even the most modern housing of IP 55 class allows insignificant losses of thermal energy; to maintain the water temperature in the required parameters, the boiler is periodically automatically switched on. If, in order to save unproductive energy losses, the boiler is turned on only before taking water procedures, then you need to wait several hours to heat the water, the specific amount depends on the volume of the boiler, and this is rather inconvenient.

Storage boilers are most often used in bathrooms, they are easy to install, which makes it possible to carry out the work yourself. Accumulative boilers with electric heating have many modifications, before buying, you should familiarize yourself with the differences and choose the best option for yourself, taking into account the characteristics of the premises and the number of family members.

Boiler characteristics	Short description
	They are distinguished by the highest performance indicators, universal use. The bathrooms use devices with a tank volume of up to 100 liters.
	The special position allows installation in rooms with low ceilings. Disadvantage - due to horizontal placement, the efficiency deteriorates somewhat.
	They have a small width, can be installed in confined spaces. By the principle of action, they do not differ from the first categories.
	The spiral is placed in a special heat-resistant flask, which excludes contact of conductive elements with water - increases the safety of use, it is allowed to connect to outdated electrical networks without grounding. In addition, scale does not form on the heating elements - the efficiency and service life increase.
	Risks of tank depressurization due to corrosion processes are completely eliminated. There is no need to mount a magnesium anode.
	Water heating is carried out by the heat carrier used to heat the room. Benefits - Possibility to save energy. Disadvantages - it works only during the heating season, the falsity of installation and maintenance increases. Almost never used for bathrooms.

Knowledge of the device and the principle of operation of the unit will allow you to avoid annoying mistakes during installation and operation, and this will increase the duration and safety of use.

electric boiler

What are the elements of an electric boiler?

1. Bracket for fixing the boiler to the supporting surface... Placed in the upper part of the device, it provides a secure mounting of the boiler. It is made of heavy plate steel, welded to the outer casing by resistance welding.
2. ... The cold water connection is short and has a jet diffuser. Due to this design, cold water is evenly distributed in the lower volume and the pressure of the jet does not mix with the heated one. The heated water rises due to the difference in density between cold and hot water. The hot water intake branch pipe has an increased length, the intake takes place in the upper most heated part of the volume.
3. Insulation layer... A very important element of the boiler, the heat saving indicators largely depend on it. It is made from various modifications of foam plastic.
4. Thermostat... Regulates temperature values, automatically turns on / off the power. It will be placed in the lower part, you need to remember this when adjusting the temperature of heating the water.
5. Inner tank... It can be made of stainless steel (expensive models) or ordinary sheet steel with an anti-corrosion coating.
6. ... Power 1.5-2.0 kW, can be "wet" or "dry".
7. Magnesium anode... Purpose - to reduce the corrosion processes of the inner tank. How does it function? Water contains oxygen, which oxidizes iron. Magnesium is highly active and is the first to react with oxygen, due to this, its concentration in water decreases, and steel rusts more slowly. The frequency of replacement of the magnesium anode depends on the frequency of using the boiler and is on average 5–8 years.

   The photo shows a new and used magnesium anode

8. ... An ordinary bimetallic thermometer is used, the reading accuracy is ± 2–3 ° С. Some modern models have electronic control units, but this does not affect the quality of operation. But the cost of the boiler increases significantly.
9. Indicator light... It turns on when voltage is applied to the heating element and turns off simultaneously with it.
10. Outer case... It is covered with durable powder paints that reliably protect the metal from the negative influence of external factors.
11. Safety and check valves... Manufactured in one housing, they control the pressure in the boiler and protect against excessive pressure build-up during water heating. The check valve performs two functions: it prevents emergency exposure of heating elements and prevents heated water from getting back into the water supply system. In the absence of a valve, heated water enters not only for its intended purpose, but also into the entire water supply system.

    Photo of the safety and non-return valves of the water heater

12. Plastic coupling... It is used when connecting the boiler to metal pipes, it reduces the voltage indicators during a short circuit of the heating element. But it cannot completely protect users, we will talk about this in the article below.

Most boilers are composed of such elements. Minor technical differences do not affect the installation process.

Step-by-step instructions for installing a boiler

It is better to work together, if there is no such possibility, then call an assistant at least just to hang the water heater.

Step 1. Decide on the location of the storage boiler, draw up a pipe layout. You will need to make a cold water supply and hot water outlet.

We recommend connecting using the simplest and most reliable circuit. There is a shut-off valve at the cold water inlet, followed by a safety valve complete with a return flow. A valve is not needed at the outlet of hot water; for repairs, it is enough to shut off one. If you wish, you can put valves at every turn and on every pipe, but the result from such work will only be negative. In addition to the fact that you will have to buy unnecessary elements, the installation time will increase and the number of places for possible leaks will increase. Practice shows that all other shut-off valves are never used, only one inlet is always closed.

Important. Try to install the unit as far as possible from the shower stall or bath. In these places, he will fog up, create inconvenience during the adoption of water procedures.

If you have a new construction and pipe sockets have already been made in the wall, then the work is much easier. And what if the boiler is installed in an existing bathroom? The water supply is best taken from the sink. Disassemble the connection at the cold water supply and install a tee there. Connect the hot water to the existing mixer with shower. You can perform these works quickly by using external piping and flexible hoses, or you can gouge walls and hide communications. The second option is much better, but requires additional effort. In addition, it is not always possible to restore the wall cladding with ceramic tiles in their original form. Decide for yourself which option to choose.

Step 2. Unpack the water heater and check the contents. What should be in the delivery is indicated in the manufacturer's instructions. By the way, there is also an approximate installation diagram. From this diagram, only one point is important for you - how to connect the safety valve. We have already mentioned that it is located in the same case with the opposite one.

Step 3. Purchase materials according to your connection diagram. Count their number and nomenclature, including corners and limit switches. Use FUM tape to seal the joints. It not only performs its tasks perfectly, but also prevents breakage of nuts or threaded unions of flexible hoses. Keep in mind that these elements are made of a beautiful, but very fragile alloy of silumin, it cracks at the slightest excess of the permissible forces.

Step 4. Prepare your tools. You will need a drill with a perforator, a set of locksmith keys or one adjustable wrench, a screwdriver, pliers, a tape measure, a level and a pencil. Most apartment owners have this tool at home, there is no need to buy anything.

Important. If you fix the water heater to a solid bearing wall made of brick or concrete - great, their physical strength indicators allow you to hang such heavy devices. And if for some reason the boiler needs to be hung on the interior partition made of foam concrete, then certain difficulties arise. How to solve them, we will tell you a little below in this article.

Step 5. If there is an assistant, lift the heater with him and lean it against the wall at the installation site, mark the location of the dowels with a pencil or felt-tip pen. Take it off and check the horizontal level with a level. Drill the holes and reinstall the hardware. You will have to hang the heater several times, it is difficult to guess the length of the fastener the first time. As soon as the device is fixed on the wall, you can let go of the assistant, all further work can be done alone without any problems. Be sure to check the reliability of the suspension. To do this, grab onto the top of the case, it must support your weight. No wobbling or large distances from the wall are allowed. Adjusting the distance from the wall is done by twisting the fasteners.

If there is no assistant, then you need to mark the center of the fixing bar (bracket). Draw a horizontal line on the wall below the level and set the distances between the technological holes on it. You will have to lift the boiler alone, which is quite difficult.

Step 6. Remove the plastic plugs from the branch pipes. Please note that it is blue on the cold water supply pipe, and red on the hot one.

Step 7. Start with a cold water connection. Wind about 6–8 turns of FUM tape on the threaded part of the outlet pipe, carefully press it with your fingers around the thread. You need to wind it clockwise, otherwise, while screwing on the tap, the tape will slip off and the thread will leak. Make sure the tape does not cover the inlet.

Important. When purchasing taps and adapters, pay attention that they are connected without additional couplings. The more couplings, the more problems.

For example, if there is a thread on the inlet pipe, then buy a valve that has a nut at one end and a fitting at the other. A valve is screwed onto the fitting; on the opposite side it also has an open threaded part. This means that one end of the flexible hose must have a nut, and the other must be selected depending on the pipe end. We have put this example so that you understand the principle of completing pipelines with shut-off and other valves. The more different adapters there are, the lower the qualifications of the master. Remember this during any installation work.

Step 8. Connect the valve to the stopcock. Control his position, this is very important. There is an arrow on the body indicating the direction of movement of water, observe this condition.

For a guarantee, before screwing in, check that the safety and non-return valves are working properly. Raise and lower the forced opening lever of the safety valve several times, check the actuation force of the shutoff valve with your finger.

Step 9. Connect the valve outlet to a cold water source according to your wiring diagram.

Step 10. Connect the hot water outlet to the mixer. If necessary, cold water from the boiler is also connected to it. To do this, put a tee at the inlet, after the tee, another shut-off valve, and connect cold water to the mixer from the valve with a hose or plastic pipe.

Step 11... The electrical part is assembled at the factory, there is no need to touch anything. Plug in the socket and plug into it. When carrying out work on connecting electrical equipment, always observe the PUE.

Photo in the process of connecting wires

Installation is complete, check the boiler's performance. First, open a hot water tap and turn on cold water. Air should come out of the mixer, when the container is full, close the tap. Carefully inspect the entire connection for leaks, if you find problem areas, eliminate them. Set the minimum water heating temperature and connect the power to the boiler. Check if the indicator light is on, if the temperature switch is activated as a thermometer behaves. After turning off the boiler, it is advisable to check the water temperature with an ordinary alcohol thermometer and compare its indicators with the one installed on the body. This will allow you to more accurately navigate the actual water heating.

Due to the skillful use of the boiler, it is possible to achieve significant savings in electrical energy, increase the reliability and duration of use.

What should consumers know about?

1. It is more profitable to install devices with a volume of 80-100 liters in bathrooms. This water, heated to + 50-60 ° C, is enough for 2-3 people to shower or fill one standard bath. In addition, such boilers keep the water warm for at least 12 hours, which makes it possible to turn on heating at night, when the cost of electricity is minimal, and take a shower in the morning and evening. The heater can be switched on manually or connected to a timer.

   Small storage water heater under the sink in the kitchen

2. Manufacturers complete the devices with all necessary safety fittings. Remember that the more you install additional valves, valves, etc., the more chances that any of them will fail. The axiom of all installation work: fewer components - higher reliability of the system.
3. Buy modern boilers. Manufacturers have provided for the possibility of an emergency water leak in them. It can occur in cases when the supply in the central water supply system stops, the water leaves the boiler and exposes the heating elements. For a device connected to the network, this means their burnout. Now the height of the pipe supplying cold water is always higher than the height of the heating element, the heater will always be in the water. There is no need to install additional protective fittings at your discretion. By the way, the non-return valve is always mounted in the safety valve, both of them are located in the same housing. A non-return valve is included in the delivery.
4. Check the function of the non-return valve periodically, the small hole may become clogged with calcium deposits over time.
5. Never install additional valves to drain water from the boiler. It can be removed through the safety valve - open it with a special lever and all the water will go away.
6. There is no need to install separate water pressure reducing reducers for boilers - all devices can withstand a pressure of at least 6 atm. What is 6 atm.? This is the pressure of a column of water 60 meters high. In all cities, the pressure in houses is not more than 3 atm., If the building is high-rise, then it has its own additional booster pumps, and reducers are already installed in the apartments. You don't need to be smart yourself.
7. If you have foam block partitions in the bathroom, then pay extra attention to fastening. The strength of the blocks does not guarantee reliable fixation, even special dowels may not support the large weight of the boiler. Professionals recommend first drilling tapered holes with an increased diameter in foam blocks, the base of the cone should be in the thickness of the block. Next, the hole is filled with a strong cement-sand mortar and brackets for hanging the boiler are fixed in it.
8. Use the utmost effort to connect to ground. In old buildings it is not, and it is very dangerous. Although some boilers are equipped with plastic couplings to break the metal pipe, they are of little help. The fact is that water in itself is considered a good conductor of current; if the heater breaks down, people will be inevitably damaged.

   

   Boiler plugged in

   The fact is that the water heater will consume maximum power for a long time, low-quality sockets heat up during this time, the plastic melts, the contacts are oxidized. In the best case, your boiler will stop working, in the worst case, a fire is possible with all the sad consequences. How to choose the right socket? The current limits are indicated on the socket housing in amperes. To find out what power of electrical appliances it can withstand, you need to multiply the indicated current strength by a voltage of 220 V. For example, a 10 A socket can withstand a power of 2.2 kW. If the heating element of your boiler is 1.5 kW, then such an outlet can be used. If the heating element is 2 kW, then it is better to buy a 16 A socket. Pay the same attention to the cross-section of the conductive cable.

Compliance with simple installation rules will make the use of the boiler long and safe. Find out the drainage channel for the shower under the tiles by the link.

Video - Installing a water heater in the bathroom