How to properly install a boiler in an apartment with your own hands? Review + Video

How to properly install a boiler in an apartment with your own hands? Review + Video How to install a boiler with your own hands + video, photo and step-by-step instructions. For those who have suburban real estate, the installation of an autonomous water heating system is a necessity in all its senses. Agree, how can we talk about comfort if there is no heated water in the house? Electric type devices for heating water are very popular for equipping a house with an autonomous water heating device. It can also be used for apartments so that there are no problems with hot water, especially in the summer. Such pleasure is worth a lot, and therefore, installing a boiler with your own hands in an apartment or house will help to significantly reduce costs.

We will talk about what exactly are the rules for installing this device, how it works and what you should know before starting installation work. You will also find useful diagrams that make it possible to correctly install a storage water heater. For clarity, we have posted video tutorials on installation.

How everything works

Electric water heaters of storage type are very simple, and such devices are a hydraulic reservoir, inside which there is a heating element in the form of a powerful heating element. Since the device is required for storing hot water and is made like a thermos, if it is necessary to additionally insulate it.

There are two pipes inside - one at a time, cold water is taken from the water supply, and in the second, a stream heated to a certain temperature is supplied to the hot water supply circuit. To regulate the operation of the device, it is worth using a block with automatic control.

This complex device helps to control the intake of water, the temperature of its heating, turns off and on the heating element if necessary. The unit also has a module for automatic power off (electricity) in case there is no water inside the tank. Also, you cannot turn on the boiler if the heating element is not covered with a layer of water, because this can lead to a very quick breakdown of the device.

The above diagram helps to clearly demonstrate the operating procedure of the storage water heater, as well as the general procedure for connecting to the plumbing system of an apartment / house.

Procedure for installing water heaters

The simplest design helps to ensure the exceptional reliability of storage water heaters. Installing such a device is not so difficult, but here you need to take into account a number of important nuances. First you need to choose a place where you will install the heater. After that, install it, and also connect it to the water supply system and electrical power.

For domestic needs, relatively small wall models are usually enough. They are suspended on special brackets, and for vertical type models, two brackets are used, and for horizontal devices, exactly twice as much (i.e. 4) brackets are required.The attachment procedure is straightforward and usually requires only a screwdriver and suitable sized screws.

How to properly install a boiler in an apartment with your own hands? Review + Video The diagram shows all the norms and recommendations for hanging a water storage heater on the wall surface. Incorrect or loose fasteners can cause the device to break. There should be a distance of 18 cm between the mounts, on which vertical models are usually installed. Brackets with hinges are required for installing the horizontal model. In this case, it is worth maintaining the distance between the surfaces of different objects and the protective cover of at least 30 cm for devices with a volume of no more than 80 liters, and at least 50 cm for boilers with a capacity of 100 to 200 liters.

It is also better not to install vertical models in a horizontal position, or vice versa, lay a set of vertical devices. The fact is that this is a gross violation of the operating conditions and safety precautions of the device, which can lead not only to equipment breakdown, but even to dangerous accidents.

With the help of the building level, it is necessary to check the correct placement of the individual fasteners relative to each other. As for the places of installation of the boiler, it is better to choose as close to the point of analysis of hot water. This will make it possible to deliver heated water to the consumer even faster, namely to reduce heat losses during transportation.

How to install a boiler in an apartment with your own hands if you have little experience? To learn from the mistakes of others, namely, not to do as inexperienced craftsmen sin, attach the brackets to the drywall partitions. The load-bearing capacity of such structures is very small to support the weight. Even if the water heater installed in this way collapses on the same day, it can happen after filling with water.

A separate case is the installation of a storage water heater on a plaster base, behind which is a load-bearing wall. In this case, it is required to use special fasteners of the required size so that they can pass through the false wall and plunge into the thickness of the supporting type structure, which will bear the main load.

Naturally, the place where the storage-type heater is installed must be accessible for maintenance, repair, adjustments, and other things. The design of such devices is usually attractive, and therefore there should be no problems in the field of combination with other interior items.

Naturally, before starting installation work, you must carefully study the instructions from the manufacturer, so that you can take into account all the recommendations that are in the document. If a storage water heater is installed in a high-rise apartment, then if it breaks down, there is a danger of flooding the premises below you. For this reason, we recommend that you think about waterproofing the premises intended for this before installation work.

An alternative way of protecting against such troubles can be a special pallet, which is equipped with a drain hole and is connected to the sewer system. If the house has an automated leakage protection system, then it makes sense to install one of the sensors just under the water heater. Although this will not be able to fully save from flooding, it will definitely minimize the damage.

Since it is recommended to install the heating device as close to the hot water intake points as possible, it is worth making sure that the device is fully protected from moisture. If the heater is placed near a sink, bathtub or washbasin, splashes on the surface will be almost inevitable.

If the contact with water is more serious, then this is a danger to any electrical appliance. Before installing a storage water heater in an apartment, you should first pay attention to the marking of the boiler. The ability of the device to transfer external influences is reflected using a special index IPXX, where XX will be numbers.

Values ​​of the first indicator of the protection index IP:

  • 0 - there is no protection at all.
  • 1 - there is a degree of protection against hitting objects larger than 5 cm.

  • 2 - from objects of medium size (more than 1.25 cm).
  • 3 - there is a protection against small objects (more than 0.25 cm).
  • 4 - the degree of protection against small objects (more than 0.

    1 cm).

  • 5 - there is dust protection.
  • 6 - the device is completely sealed.

The first digit of the index will reflect the resistance of the electrical device to contact with foreign objects. The second will indicate the degree of protection of the device from moisture.

Values ​​of the second indicator of the protection index IP:

  • 0 - no protection.
  • How to properly install a boiler in an apartment with your own hands? Review + Video 1 - the degree of protection against vertically directed drops is set.
  • 2 - there is a degree of protection against drops that fall at an angle of no more than 15 degrees from the vertical.
  • 3 - from drops of rain and splashes at an angle not exceeding 60 degrees from the vertical.
  • 4 - in any direction from splashes.

  • 5 - protection against water jets.
  • 6 - from waves and a strong jet.
  • 7 - short-term immersion of the device to a depth of no more than 1 meter is permissible.
  • 8 - the device can be submerged to a depth of 1 meter for up to half an hour.

This information helps to assess the operational conditions of the water heater from a safety point of view.

This information is useful for installation and other electrical appliances. Most water heaters do not require an excessively high protective degree, for example, the same ability to work under water. Most often, appliances for home use are labeled as IP25. This level will satisfy all requests for home use.

Plumbing connection

The drain hole of this type of heater, regardless of the model, is usually located at the bottom.

For a start, it's worth building and installing the so-called security group. It is a set of valves and fittings that are needed to prevent various emergency situations that may arise during the operation of the device. At the top, an adapter should be installed, which is called "American", and then a bronze tee is screwed on. A check valve should be connected to the lower part, which will prevent water from flowing back into the water supply system. An additional tee must be connected to the side branch of the tee.

The diagram clearly shows how to connect a storage water heater - cold and hot water racks, water taps, shut-off valves, drain valve and check valve. Usually a 6 bar safety valve is attached to it, so that it is possible to automatically lower the pressure inside the tank if it has reached a critical level. A special compression fitting for the water pipe should be connected to this tee, and if there is overpressure from the accumulator, part of the water will be diverted into the sewer system.

There is also a diagram of the safety group for a storage type water heater. Such a set of devices helps to prevent dangerous emptying of devices and removes excess water if the pressure exceeds the norm.

After installing the device, make sure that the pressure valve opening remains open, otherwise the device will not work. All threaded connections must be sealed and sealed.

Professionals advise to give at least 4 hours for the sealant to dry. The photo shows clearly what the elements of the security group are. When installing the boiler, it is worth observing exactly the connection sequence.

To assemble the device with a cold water riser, you can use copper, steel, plastic or even metal-plastic pipes, but most often plastic pipes are used for self-assembly, because they are almost easy to solder. Some people use flexible hoses for this, but this solution does not justify itself, and as practice shows, such elements very quickly become unusable.

Some elements from the safety group of the storage water heater are connected by means of a thread. In accordance with the regulations, such places should be sealed and treated with a sealant. It is not difficult to correctly install the boiler with your own hands, the main thing is that the hot and cold water is shut off before the tie-in.

A shut-off valve should be installed between the risers with cold water and the boiler, so that, if necessary, the water that enters the device can be turned off, all connections should be carefully sealed.Next, it is worth bringing in an additional pipe that will connect the heater to the hot water supply system in the apartment. An additional shut-off valve is also required here, which will stand between the heater and the riser with hot water.

Such a tap must always be closed so that heated water from the boiler does not enter the common hot riser of the house. Check again that all connections are sealed and sealed.

A shut-off valve for cold water between the risers and the heating device must be installed so that, when closed, this does not interfere with the flow of water to the rest of the consumers, and only cut off the boiler. And the connection to the DHW system should be done in such a way that, if necessary, you can restore the flow of hot water from the main riser to the system in the apartment. At this point, the connection to the water supply system can be considered complete, and certain experts at this stage recommend performing a check - filling everything with water, and then draining and monitoring if a leak appears. Such a check can be carried out only after the sealant has completely dried on all joints.

Autonomous water supply and water heater

In private houses outside the city, not a centralized, but an autonomous heating system is usually used.

In such a situation, a storage water heater should be used, as this is justified, but in this case the connection diagram will be slightly different. In this case, the source of water is usually a tank, which is installed on the upper floor or in the attic. The diagram reflects the peculiarities of connecting a storage water heater to an autonomous water supply system if the vertical distance between the heating device and the water tank is less than 2 meters.

The vertical distance between the water heater and the tank should be measured, and if it is less than 2 meters, then a tee should be installed to divert some of the cold water to the heater so that the pipe is above the level at which the heater is installed. A tee with a non-return valve and a drainage branch should be installed at the inlet of the cold water pipe to the boiler.

If the distance is more than two meters, then the outlet is performed lower than the installation level of the heater. In this case, at the inlet of cold water to the device, a tee should be installed with the discharge of excess water into the sewer system, and a check valve should be connected below. Such a diagram helps to demonstrate the option of connecting a storage water heater in a house with an autonomous water supply system, if the vertical distance between the heater and the tank is more than 2 meters. Before installation, measure the water pressure in the autonomous house system. If it is higher than 6 bar, then the circuit should be supplemented with a special reduction gearbox, because the excessive water pressure that enters the heater can lead to damage to electrical equipment.

Electrical part of installation work

Connecting the boiler to the electrical power supply may seem a very simple task, since to start the device, you just need to plug the device into the socket, and Usually, domestic storage-type water heaters are designed for a normal voltage of 220 V. But anyone who is at least a little familiar with the operation of electrical networks understands that a standard outlet may not be suitable for such powerful devices. To begin with, it is worth assessing the state of the electrical wiring of a house or apartment, and then find out what maximum load it is designed for.

Connecting several devices to the same line at the same time (with high power) can be fatal for the entire system. For example, if you turn on a household electric stove / washing machine and a water heater at the same time, then the wiring can cause a fire, burn out, etc.

The safest and most reliable way would be to bring a separate cable from the electrical panel, and the cross-section of the electrical cable will be an important indicator of the situation. The minimum cross-section can be found using special tables. In this case, it is worth considering the operating voltage, the material of the cable, the phases, whether the wiring will be hidden, etc. For water heaters, an aluminum or copper two-core cable is usually used, with a voltage of 220 V, single-phase.

If the heater will be installed in a room with a high level of humidity (kitchen, bathroom), then it is worth using special waterproof sockets.

Moreover, for two-phase boilers, it is almost always required to install a residual current device, and the cable used must be protected from moisture, durable and elastic. Do not skimp on the cable, take it with a margin, the wire should never be taut. Remember to read the cable markings before connecting.


Accumulative water heaters are reliable and popular, they help to provide the house with hot water in the required amount. Their installation is not so difficult to carry out, but the recommendations of the manufacturer and safety equipment should be carefully followed.