How to choose an electric boiler for heating?

How to choose an electric boiler for heating. Installation of an electric boiler.

It is widely believed that electric boilers are not cost-effective. In fact, this is far from the case. If they were not profitable, the world's leading manufacturers of heating systems would simply stop developing and releasing this type of equipment. In addition, gasification at home is not cheap. Therefore, if the house is not gasified, then there is no alternative to an electric water heater. So, we will buy. But the question is which one? What types of electric boilers are there at all and by what criteria should I make a choice? We will talk about this below.

All electric heating boilers on the market can be divided into 3 types: electrode, induction and heating elements. It is not advisable to consider the first two types as a purchase option. Briefly explain why:

Electrode boilers, despite a successful marketing campaign, contain a number of minuses that outline all the positive aspects. Judge for yourself, for the ionization process you need specially prepared water. It is necessary to constantly monitor the composition of the water, its characteristics will change, the currents consumed will change (you will pay more, but get less heat or none at all), you need a reliable grounding system, etc.

   Induction heating systems are usually difficult to attribute to electric boilers, in addition, they are not very cheap, and not everyone can afford a separate room for such an installation.

Therefore, let's focus on the proven boilers of "Thermogroup BG", TEN. The principle of operation of such electric boilers is simple. Electrical energy is converted into heat, ordinary water is used as a heat carrier. The simplest boiler of this type contains a heating tank and a heater. In its more complex version, it has an electronic boiler control system. Boilers produce two types: single-circuit and double-circuit. The difference between them is that electric heating boilers with two circuits also provide the user with hot water.

Electric boiler for heating, how to choose?

Choosing an electric water heater should not be based on advertising gimmicks. So, for example, the efficiency of all electric boilers is approximately equal to 95 98%. So, you should choose according to the necessary technical parameters of the boiler and the manufacturer's rating. Let's start with the technical parameters, there are only four of them:

Boiler power, the most important characteristic. Its selection is carried out according to the usual ratio of 10 m2, 1 kW is taken. I.e. to heat an area of 70 m2, we need a boiler with a power of at least 7 kW. If we need a boiler with a double circuit for hot water, the capacity must be at least 25% more. And in general, when heating a private house with an electric boiler, you need to take energy with a margin. This is due to a possible power outage. For example, a boiler with a power of 7.5, when the voltage drops to 190V, produces a maximum of 5.5 kW. This should also be taken into account.

​Having different power levels will save. For example, for a 6 kW boiler, these can be the following 2, 4 and 6 kW modes. We at "TERMOGRUP BG" are trying to reduce the amount of electricity consumed in a different way. This is usually achieved through the use of automation. So the easiest way is the thermostat in the boiler itself. After the coolant temperature rises to the value set by the user, the thermostat opens the supply circuit to the heater. The smoothest temperature control and, accordingly, maximum energy savings (up to 34%) are achieved in boilers with microprocessor control.

  Options. We, as manufacturers, provide a very rich package, it includes circulation pump, remote temperature sensors, etc. In fact, this is already an automatic mini-boiler. True, such a configuration is inherent only in the middle and highest price range.

   The last parameter is not directly related to the boiler, but it is extremely important to take into account. Before buying a boiler, you need to know exactly how much power the power line can provide. To do this, you will need to visit the local office of the company serving the electricity network.

Finally, a few more important nuances when choosing an electric water heater:

One of the main advantages of an electric heating boiler is the almost complete absence of special installation requirements. I.e. it is not necessary to equip a chimney, no coordination with the boiler supervision authorities is required, no specially allocated premises are required.

This greatly facilitates the installation. The only condition for installing an electric water heater is the presence of appropriate wiring. As already mentioned, before you buy, it is necessary to understand the available power of the electrical network. Next, you need to find out the power of the electricity meter, if it is less than the purchased boiler + other electrical appliances,