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The reason for the popularity of connecting an electric boiler to the heating system of a private home is the ease of installation and ease of calculation. Unlike gas devices, they can be embedded anywhere in the system, which is very convenient. In addition, electric boilers are environmentally friendly and effective method heating

Nuances of work

Electric heat generators have high efficiency, which means they are suitable for large areas. Electrode boilers are the most economical of all.

All electric boilers equipped with a regulation system for temperature control and a stabilizer that protects against power surges - the devices are almost always sensitive to them. By the way, the main problem in calculating an electric boiler is most often the load on the network, which, as a rule, is higher than normal.

Components

Correct connection of the electric boiler to the heating system ensures further trouble-free operation and efficiency. The electric boiler installation system consists of the following components:

    • apparatus;
    • temperature sensors;
    • radiators;
    • drain and shut-off valves;
    • expansion tank;
    • circulation pump and filter.

Choosing a place and rules

Installation of an electric boiler is only possible on a wall lined with non-flammable material and preferably in non-residential premises, although a kitchen would also work well. It is also necessary to provide for the possibility of water leakage: if such a place is located next to the boiler, this creates a danger of short circuit and fire.

Know for safety

According to established standards there must be a distance of at least 5 cm from the electric boiler to the walls, the free space in front of it is provided at 70 cm, at the top - at least 80 cm, at the bottom - at least 50 cm.

If the boiler consumes no more than 3.5 kW, it can be connected to a regular electrical outlet. Boilers with a power of 3.5-7 kW are connected directly to the panel with a dedicated cable. They can be powered by 220 V.

A separate cable is not a whim of the manufacturer: the safety instructions limit the maximum current at the socket to 16 A. But boilers with an electrical power of 7 kW or more are powered only by 380 V.


Useful features and disadvantages

It is also worth considering installing a universal solid fuel boiler with built-in electric heating elements. Some models even have hob, which will not require additional external finishing.

Electric boilers can easily withstand power outages for up to 6 months. It makes them good option in case of irregular use of the system or in case of interruptions in the supply of electricity necessary for heating a private home.


The disadvantage of using an electric boiler is the need for powerful supply cables with a large cross-section.

Installation procedures

To hang the device you need mounting plate, which is included in the delivery package: it is attached to the wall with four dowels or anchor bolts with mandatory horizontal and vertical alignment. If this is a floor-standing boiler, then it is installed on a special stand.

The device must be grounded, inspected and made sure that it is in the correct position, the water pressure in the system is normal, and all communications are connected.

Electric heating units must be connected with a wire whose cross-section is indicated in the documentation for the equipment. Wires are carried in special protective boxes.

Scheme options

There are various diagrams: a diagram for connecting an electric boiler with heating radiators, diagrams with the possibility of installing a cascade. The last option is used if it is necessary to heat large areas. To operate devices in a cascade, the terminals of the control unit are connected to the terminals of the controlled one. If the installation system is controlled by a room regulator, then its control contacts are connected to the terminals of the leading equipment.

Heating apparatus piping

Tying can be carried out using a direct or mixing scheme. The direct scheme involves adjusting the temperatures with a burner, the mixing scheme involves a mixer with a servo drive. The binding is carried out as follows.
The boiler manifold is installed, a pipe of the required diameter is connected to the boiler.


A three-way valve is installed at the inlet mixing valve which will regulate the temperature. A circulation pump is installed on the return line and a control unit is mounted. After piping, you can fill the system with coolant and test the operation of the equipment for correctness.

Do not underestimate this stage: in reality, it is not as simple and insignificant as it might seem. Normal piping allows you to use equipment without an automation system, and this greatly reduces costs. Therefore it must be performed on professional level and taking into account the design features of the system and boiler.

The wiring of an electric boiler must be done by a specialist. If you still have to do it yourself, then you need already assembled distribution units.
General diagram of the implementation of a heating system in a house.

A modern electric boiler is good decision issue with heating, as well as hot water supply to your home. Having a number of advantages compared to other boilers, they are increasingly becoming the choice of Russian buyers when it comes to autonomous system heating. However, the electric boiler still needs to be installed correctly, and although this is not the most difficult task, it nevertheless requires separate lighting.

Advantages of an electric boiler

How to install correctly

To make it easier for you to understand the main points related to the installation of an electric boiler, you should understand its essence. Namely, especially the design. It is such that electric boilers are mounted on the wall, while they are single-circuit and do not have a built-in boiler.

To provide a home hot water, you need to purchase a water heater, which is usually instantaneous or capacitive. In the case when the equipment is built into the system and serves as a backup heat supplier, while the main boiler runs on diesel, gas or solid fuel, it becomes possible to connect it to the boiler.

The rules for installing an electric boiler are described in the documents that come with it.

All electric boilers have a number of requirements:

— Installation must be carried out by a service center specialist who has permission to carry out electrical installation work;

— Before hanging the electric boiler on the wall, make sure that it can withstand its weight without various types of deformation;

— To facilitate access to the unit when carrying out repair work or maintenance, leave some free space on one or more sides.

Installation steps

Installation of an electric boiler is the simplest in comparison with the installation of other types of boilers. Since electricity will be involved in the heating process, the need for storage and supply of gas or liquid and solid fuel, there is no chimney creation. Installation of an electric boiler can be divided into several stages:

— The fastenings necessary for the boiler are installed on the wall, the brackets are leveled and care is taken to ensure that there are no distortions;

— It is necessary to create grounding;

— The boiler is connected to the heating system. Circulation pump and expansion tank, if not built into the boiler structure, must be installed separately;

— Start-up and commissioning of equipment is underway. The system is checked for leaks in all areas, after which excess air is removed and the operation of the unit is checked in all modes.

Before installing the equipment, you need to check that all tools are at hand. These include:

— Instructions included with the unit;

— Flanges and couplings;

— Pipes of suitable dimensions;

— Cable having a certain cross-section;

— Hardware with which the boiler is attached to the wall;

— Mounting plate;

— A diagram that shows correct installation electric boiler

Electric boiler installation diagram with instantaneous water heater

Installation process in the right order (video)

So, having checked the wall to which the boiler will be attached, and making sure that it can bear the required load, we leave a little free space for access to the boiler (usually it is indicated in the instructions) and install the unit, checking the evenness of its location using a level.

The wall on which the boiler is mounted must be made of non-combustible materials.

The mounting plate will be useful for you to proper installation boiler Pipelines should be selected based on which pump is installed in the system.

Basically, installing an electric boiler is not difficult, however, as in any business, there are some interesting aspects. Thus, boilers with low power always work well in a regular network with a voltage of 220V. Another thing is that if the model is powerful enough, it needs to be connected to a three-phase network. This is why it is so important to correctly calculate the cable cross-section. A properly selected cable can withstand the power of the unit and pass the required current without failure.

After the boiler is installed, the heating system and water supply system pipes are connected to it. This is where couplings and flanges come in handy.

The next step is to connect to the mains. RCDs and circuit breakers with the required ratings are pre-installed, and grounding work is carried out. The cable is equipped with a switch, the distance between the contacts of which is 3 mm. As soon as the device is connected to the system, you can draw water, start the unit and check it in action.

There is almost no difference between installing wall-mounted and floor-standing boilers, except that floor-standing boilers are installed on a special stand.

Features of boiler installation

If you feel the strength to self-installation electric boiler, take the advice of knowledgeable specialists. It is best if the electric heating source is used as a backup - this will allow the resulting heat to be spent more efficiently in the room.

A non-return safety valve, a pressure gauge and an air vent are the elements that you will become familiar with when installing the boiler electrode type.

If you have an open heating system, then a shut-off valve is installed on the section of the pipeline that comes from the expansion tank.

Used for grounding copper wire with a four-millimeter cross-section when connecting the conductor to the neutral terminal of the equipment. It can be found on the boiler body in its lower part.

It is best if the boiler is built into new system, and not into the existing circuit. Otherwise, the circuit must be rinsed thoroughly using the products intended for this purpose.

After installing the electric boiler, make sure that all the rules safe operation are met, and the boiler itself operates normally in all modes. In this case, the installation can be considered successful.

The use of electricity for heating a private home is gaining momentum. This is due, first of all, to the impossibility or high cost of installing a gas branch to a particular facility. But even without this, such heating has enough advantages.

Below we describe the principle of operation of the unit, calculation of the load on certain areas, and the actual installation of an electric heating boiler with your own hands. The work is not difficult, but requires precise execution of each step of the instructions.

Types of electric boilers

The assortment offered to the consumer is quite rich. Externally, the devices are very attractive - wall-mounted, floor-mounted. They can be powered from the mains or require a certain power load.

Single-circuit or double-circuit - the latter are suitable for generating hot water. However, to admire only the device and appearance, is impractical - it is important to determine the economic benefit of each unit, it is determined by the method of heating the medium. So:

Which one should I buy? The choice is up to the owner. However, you should not proceed only from the cost of the unit - buying a promising expensive model may provide greater monetary savings in the future.

Requirements for installing electric boilers

The regulations are less strict regarding the installation of electric heating units, however, this does not mean that the work can be treated negligently - an installation diagram for an electric heating boiler and permission from Energonadzor are required if the system is the only one in the house. Further:

  1. Wiring defects must be identified. An electric boiler, according to its power, requires high-quality power cable and grounding. If defects are found, the wiring is changed.
  2. The location for installing the boiler is selected carefully. It should not be less than 4 m² in area, damp or with occasional moisture, and be located next to windows. Usually a passage corridor - a wall or floor - is suitable.
  3. Depending on the location, the floors or wall should not have any defects. This applies to manifestations of fungus or mold that signal moisture.
  4. Socket and junction box must be in a single copy and only for installation. Ideally, if the owners provide a separate input specifically for the boiler, then short circuits or surges in the network are excluded.

Even the installation of an electric mini-heating boiler in a garage should only be carried out by an experienced electrician. Lack of knowledge will lead to disaster.

Boiler power calculation

To understand which unit will be the most acceptable in the house, you should calculate its power using the following formula: F=S*F1/10, where F is the boiler power, S is the area of ​​the room, F1 is the design parameter of the unit per 10 m². You should focus on the number found. In addition, the following factors should be taken into account:

  • Type of thermal insulation.
  • Number of premises.
  • Square window openings and doors - heat loss is most noticeable through them.
  • Additional rooms - attic and basement. Are they insulated, do they have ventilation, etc.
You can calculate and order a regime card with the help of professionals who will not only suggest the most appropriate solution, but also describe in detail the parameters for optimizing energy costs.

Self-installation of a wall-mounted electric boiler

When the model of the unit has been decided and a location for installation has been chosen, installation can begin. Naturally, with certain knowledge. So, you will need the following tools:

When the system is installed, each heating unit is checked separately - for leaks in the piping and the boiler itself, for correct connection cables - electrical panel. After pressure testing, the boiler can be put into operation at minimum mode, adding load gradually.

Electric boiler Evan

Recently domestic manufacturer offered to his consumer New Product– electric boiler Evan. The company has been around for quite a long time and is constantly modernizing its units, resulting in this heating system. The series of boilers produced under this brand can be divided into the following:

  • Economy
  • Standard.
  • Comfort.
  • Professional.
  • Luxury

But in general, even budget categories are not inferior in quality to VIP products. A feature of each unit was manual assembly, which eliminates stamped defects that plague mass production.

More advantages:

A big advantage of Evan products is the affordable prices for economy and standard class boilers. If the owners do not have luxurious mansions with areas exceeding 500 m², then any of the units will do an excellent job.

Owners must make a decision on installing a heating unit after they have completed the necessary economic calculations in terms of budget costs in the future. The high-quality operation of an electric boiler depends not only on the reputation of the manufacturer, but also on the conditions of the residential property for productive operation.

Heating a private home with electricity is considered one of the most convenient ways heating. Thermal units that consume electricity are environmentally friendly, quiet and highly efficient, and do not require constant attention from the homeowner. Thanks to this, many of them purchase electric heat generators as the main or additional source of heat. Our task is to tell you how to install an electric boiler and connect it to the utility networks of the house.

Many users are concerned about the room requirements for the heat generator. Existing normative base does not make any requirements regarding where the unit should be located and whether it needs separate room. However, there are Rules for the Construction of Electrical Installations (PUE), and they should be followed when installing this type of water heaters.

If you want to do everything right and ensure electrical safety in your home, it is recommended to follow following rules boiler installation:

The unit is best placed in a furnace or other technical room. Then no one living in the house (especially children) will be able to accidentally gain access to electrical power equipment. An exception is factory-made heating element boilers, which can be installed in the kitchen;

Do not lay power cables under water supply or heating pipes. In a situation where this cannot be avoided, all measures must be taken to protect the cable from water getting on it, for example, by enclosing it in special mounting boxes made of plastic or metal;

When connecting the boiler to the heating pipelines, do not allow the latter to load the body of the unit with their weight. Pipes must be securely fastened to the walls;

Observe the cross-section of the power cable cores corresponding to the power consumption and current strength. The body of the electric boiler must be connected to the ground loop.

It must be said that installation schemes for electric boilers vary depending on the type of unit used. On this moment The following types of electrical installations can be used to heat a house:

  • heating elements;
  • electrode;
  • induction

Boilers with traditional heating elements (heating elements) usually represent a real micro-boiler house enclosed in one housing. The device includes a circulation pump, automation and safety equipment, and in some models - a heating element for DHW. Thanks to this design, the installation of an electric boiler with heating elements is significantly simplified. In turn, electrode and induction heat generators are water heating elements that require external piping.

Connecting an electric boiler to the heating system

First you need to install the unit itself, securely attaching it to the wall. The heating element boiler is suspended at a level not lower than 1.5 m from the floor; the induction or electrode unit can be placed lower, as far as is convenient when piping. In this case, the last two types of heat generators are mounted in a vertical position.

Connect a heating element boiler equipped with circulation pump and automatic security, the heating system is quite simple. Below is an installation diagram according to which the piping must be performed:

The outlet pipes are connected to the pipelines through Ball Valves, equipped with American ones for convenience. A membrane expansion tank is connected to the return line, and a strainer- mud man. To make it convenient to clean it without emptying the entire system, an additional ball valve is placed in front of the dirt trap.

Note. The diagram does not show the location of the pipe for emptying the pipelines. Typically, this pipe, together with shut-off valves, cuts into the return pipeline near the heat generator.

The installation of induction and electrode type electric boilers is somewhat more complicated. The reason is that these units are not equipped with pumps, which must be used separately in the piping. In addition, the peculiarity of the operation of these boilers requires the inclusion of a safety group in the scheme. It consists of a pressure gauge, an automatic air vent and safety valve. The latter is adjusted to the response pressure, which is indicated in technical documentation supplied with the electric boiler. The wiring diagram is shown in the figure:

Note. The figure shows the connection of an induction heat generator, turning on electrode boiler will look identical.

Very often, homeowners install an electric boiler as an addition to a solid fuel boiler. This creates additional convenience in operation heating equipment, especially at night. When the firewood in the firebox burns out, and there is no one to make a new stack, the electric heater comes into operation, maintaining the temperature in the system until the morning. Besides, night rate for electricity is significantly lower than daily. In this case, the joint strapping scheme looks like this:

Note. The diagram shows a heating element boiler in use with a built-in pump. If you need to install an electrode or pump, you will have to buy the pump and install it separately on the return line.

Electrical connection

Before starting this work, you should carefully study the operating instructions for the heat generator. It indicates the minimum cross-section of the power cable that must be maintained, points and connection diagrams. In the event that for some reason this information is missing, you can use the table to determine the cross-section of the cores:

Another important point, which must be taken into account when connecting the heater to the electrical network with your own hands. In the circuit diagram for connecting the boiler power circuit to the home network, it is imperative to provide a device protective shutdown(RCD) and circuit breakers corresponding denominations. These are direct requirements of the PUE, the purpose of which is to protect equipment and people from damage electric shock. Typical scheme connection is shown in the figure:

In addition to connecting to the electrical network, when installing induction and electrode heat generators, you need to install a remote control unit and temperature sensors, and then lay wires between them. These works should be performed in accordance with the diagram in the technical data sheet of the heater.

Important! Do not forget to turn off the voltage in the home network before carrying out work!

Conclusion

In fact, installing an electric boiler in a private home is not very difficult. You need to be careful when tying the unit and monitor the quality of the connections. You also need to remember the Electrical Safety Rules and strictly follow the diagram that is presented in the product documentation.

An electric heating boiler consists of a heat exchanger, a metal container and a controller. Its feature is the conversion of electricity into heating the coolant (water, oil or antifreeze).

Such devices are widely used for heating offices, warehouses, garages, shops and private homes. Their advantages:

  1. The power control system allows you to adjust as accurately as possible temperature regime in the house.
  2. Silent.
  3. They operate only on electricity and are environmentally friendly.
  4. Safe due to the absence of open flame.
  5. Such boilers do not have mechanisms that directly affect each other, and therefore are resistant to wear.
  6. Compact.
  7. Does not require constant attention.
  8. Efficient (efficiency is 100%).
  9. Do not require special permission for self-installation.

The only negative is malfunctions during power outages or power surges.

Where to begin

In order to connect an electric boiler, you need to draw up a wiring diagram. Its type is determined by the power of the device and the type of system (single or double circuit).

Necessary the condition for installing such a heat generator is uninterrupted power supply.

Where to install and how


Connecting an electric boiler to the heating system is simple. Great importance has a voltage, based on which you need to correctly calculate the installation diagram and select the appropriate model.

In terms of power it stands out two types: floor and wall. The first has higher power - more than 60 kW.

For an electric generator of any type with a power of more than 12 kW, you need three-phase network. In other cases, two-phase is sufficient. When installing, the lower pipe should be located below the radiator so that water (oil or antifreeze) does not remain in the system.

For installation, most often they choose a kitchen or some kind. It is important that there are no flammable materials on the wall where the boiler will hang.

Preparing the electric boiler

Need to check:

  1. There is damage to the case (dents, scratches).
  2. Wiring condition. If any damage is detected, temporary twisting of the wires is allowed.
  3. No accumulation of dust.
  4. Operation of the RCD, which is necessary in case of power surges. A switch is mounted near the boiler in the wall of the house. Open access must be provided to it.

Read also: Manufacturing of an electrode boiler

Installation nuances

There are two types of electric heat generator systems:

  1. With natural pressure on the coolant (the electric boiler is located at the bottom of the circuit).
  2. WITH forced circulation. The device can be located at any point in the chain (except for the highest).

Many install not one, but two electric boilers. If the backup device does not operate at full power, then the device is installed in parallel, so that both generators operate with the same power.

Strapping scheme (“classic” version)

For strapping you need:

  1. Brackets.
  2. Filters.
  3. Shut-off valves.
  4. Valves (check and safety valves).
  5. Expansion tank.
  6. Pump (if required).
  7. Thermometer and pressure gauge.

Highlight following types strapping:

  1. With the installation of a hot water circuit (oil or antifreeze): before entering the tap, the coolant passes through an electric boiler.
  2. With connection to the underfloor heating system.
  3. Regular electrical connection.