Water heaters

How to connect the boiler correctly

Refusal to use centralized hot water supply is the exception rather than the rule. There are several reasons for this:

You do not depend on the state of the boiler room, pipelines, repair schedules.
There is no subscription fee.
You don't have to wait for hot water to get to your faucet (while the meter keeps spinning).

The cost of the water heater is not so high, the power consumption is also within reason. You can not overpay for installation, installing a boiler with your own hands is a completely affordable operation for a home master. There are also no problems with placement: the tank can be hung in any of the sanitary rooms.

Types of boilers that can be used in a residential area

It would seem that this is just a device for heating water. However, there are a huge number of designs that can be combined into several groups.

There are gas, liquid and solid fuel boilers. In our material, we consider an electric water heater.

Boilers differ in heating method

Differences in boilers by type of heater

Next, we will tell you how to properly install a boiler in residential premises of various types. Depending on the configuration of the object and the climatic zone, the connection diagram of the water heater differs significantly.

Installation of a water heater with storage

First of all, you need to choose a place where you will install the appliance. There are several criteria, we will distribute them in order of importance:

Presence of water pipes nearby. Installation of a storage water heater should not be complicated by laying long water supply systems.
Operational safety depends on how correctly the electric water heater is connected to a 220 volt network. It is advisable to allocate a separate power line on an individual group machine.
The possibility of tapping into the existing hot water supply system so that the heated water does not enter the common house system. This question does not apply to individual dwellings.
The presence of a solid wall on which it is possible to safely install the boiler with your own hands.

Most often, it is advisable to install a water heater in the bathroom. There, the water supply is laid, and the hot pipe, and the main point of consumption. This can lead to two problems:

Of course, if there is a capital wall - such a question is not worth it. We drive the anchor 120–150 mm long, and you can hang at least 300 kg.

Tees and valves to the boiler cut into the lines going from the risers to the consumer (faucet, mixer). Between the tie-in and the riser, a second shut-off valve is required. The system works as follows: close the valve after the hot riser, open the hot water shut-off valve. We use a boiler, heated water does not go into the general system.

If you need to use centralized hot water supply - we close the shut-off valves to the boiler, the taps from the riser are open.

Do-it-yourself instantaneous electric water heater installation

Heating devices without a storage tank solve 2 main problems:

Installation of a country instantaneous water heater does not provide for complex tie-ins into the system and the installation of several stopcocks. You connect the mini boiler to electricity, and start a source of water supply at the inlet.

The main thing is to ensure sufficient water pressure. In flow boilers, a powerful heating system is installed, with a weak flow, the water will boil inside, and the overheating protection will turn off the device.

How to connect instantaneous water heater in the apartment? The scheme is similar to a storage boiler.

Again, the water pressure must be sufficient for trouble-free heating. With such a scheme, it is required to install and connect a water heater with automatic control of switching on. That is, you opened the water - the heating went on. Close the tap - the boiler turned off. The only problem with such flow-throughs is that at least the minimum capacity of the heat exchanger is required. After shutting off the pressure, the water should cool down. This requires volume.

For flow boilers, the electrical connection diagram must necessarily include grounding and RCD. In fact, during operation, you use water that is in direct contact with the heater. In the event of an electrical breakdown, the security system must immediately de-energize the heater.

If you do not know how to install a boiler with your own hands, it is better to turn to professionals to install a flow heater. After installation, you will receive a safety certificate.

Installing an indirect heating boiler

Let's leave aside the hanging of heat exchangers on the heating main, it's still not 100% legal. We will figure out why and how to connect an indirect heating boiler to the general system of individual housing. First of all, this is not just indirect heating. This is a system for replacing the heat source, depending on external conditions. As a rule, the boiler capacity is at least 100 liters, and two heat exchange circuits. A traditional boiler (gas or any other) is connected to them, as well as a solar battery. Not the one that generates electric current, but the collector of solar heat.

As a result, during the operation of the boiler room (for space heating), or in the bright sun, the water in the common boiler always heats up. That is, you receive heat conditionally free of charge. Moreover, if the sun effectively heats water even in cold weather (and modern batteries work even at near zero temperatures), you can save on traditional water heating and use the boiler as a consumable container.

That is, the system “works” the other way around: through the first heat exchanger, the sun heats the water in the tank, and the second coil can supply it to the radiators or the “warm floor” system.