Electric boiler for heating a private house: prices, points of sale and rating of the best devices
Today it is impossible to imagine living in a room without heating. This is natural, because in this case there can be no question of any comfort. Of course, conventional wood-burning stoves are still used in many residential buildings today. But the increasing popularity is gained by an electric boiler for heating a private house, the prices of which are decreasing from year to year. Modern devices are capable not only of heating a room, but also, in the presence of a second circuit, provide a family with hot water supply, which is also important. Today we will try to consider the most famous brands and models electric boilers and their advantages over each other.
An electric boiler for heating can be quite compact
Heating can be tricky
The content of the article [Hide]
- 1 Electric boilers for heating private houses: what are they
- 2 Types of electric boilers: what is the difference between them
- 3 How to choose an electric boiler for a private house: the nuances that need to be considered
- 4 Review of the most popular manufacturers and their models among buyers
- 5 Electric boiler for heating a private house: prices and characteristics in the final review
- 6 Step-by-step instructions for connecting an electric boiler
- 7 Summarizing
- 8 Video: electric boiler TENKO mini 4.5 kW, a detailed overview, connection and installation in the heating system
Electric boilers for heating private houses: what are they
Electric boilers for heating are inherently water heaterscapable of circulating a hot coolant along pipes... Such water circulation can be made natural or forced (for this, a pump is installed).Most often, owners of private houses prefer double-circuit devices for the possibility of installing hot water supply. In this case, heating electric boilers can be both flow-through and cumulative.
Heating boilers can be of various shapes
Most often, electric boilers for heating are used where there is no possibility of providing gas, which is much cheaper. Many people install and solar panels... At the same time, if their power and battery capacity are correctly selected, it is quite beneficial. Indeed, in addition to using electricity for email. heating boiler in a private house, it becomes possible to illuminate the entire structure.
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The only inconvenience in this case is the rather high cost of solar equipment. Although, with proper operation, all costs are justified in a year or two, after which real savings appear.
Some boilers for heating fit perfectly into the interior
Types of electric boilers: what is the difference between them
By the type of heating elements, electric boilers for heating in a private house can be divided into 3 types:
Each of these types is good in its own way and has both its advantages and disadvantages, which cannot be overlooked. Moreover, one should not forget about the constructive differences. Now let's try to understand what they are, considering each of the types of heaters separately.
Heating elements for electric boilers for heating can be varied
Advantages and disadvantages of tubular heaters
The simplest and most common option, which is based on the principle of operation of a conventional electric kettle. This means that problems such as the formation of scale are also present here. But there is no getting away from it. The installation of the anode saves the situation a little, which takes its bulk onto itself. But we should not forget that such elements require periodic replacement.
A rather significant advantage of such boilers is their maintainability. If the heating element fails, it is easy to replace it - fortunately, the range of heating devices on the shelves is quite large. This means that there is always an opportunity to choose the one necessary for a particular model.
They often have this shape
Analyzing reviews of such equipment on the network, we found that quite a few of the buyers complain about the short life of the heating elements. You can also familiarize yourself with such opinions. We will give you one of the positive reviews from the South Urals.
Most likely, the problems in the operation of electric heating elements are associated not so much with the type of construction, but with the human factor and the greed of an unscrupulous manufacturer. After all, many of them want to make more profit at less cost. Hence, low-quality parts that quickly fail. You can buy a heating element for electric heating at a price of 3500 rubles.
Quite compact boiler for heating assembly
Imaginary and real features of the device of electrode water heaters
The principle of operation of such equipment is based on electrolysis. Surely many have come across homemade boilers (they are also called "army" or "student"), which boil water using two plates that are not in contact with each other. Water acts as a conductor here. Due to the fact that there are enough salts in it, a short circuit does not occur, but at the same time the resistance of the liquid is sufficient for the water to begin to heat up.
Let's try to understand the real advantages and disadvantages of such devices, as well as those that have not been confirmed.
Electrode heater for heating boiler
Table 1. Properties of electrode electric heating boiler
| Properties | Fact or fiction |
|---|---|
| Such devices are very compact | Indeed it is. Their size is much smaller than that of heating elements. |
| The efficiency of electrode electric boilers for heating is almost 100% | It's also true. But in this parameter, other species differ slightly |
| Very fast heating, which, coupled with a sharp increase in pressure, allows its use without an additional circulation pump | It's a delusion. The need for a pump is determined by the heating system circuit, both for electrode and heating elements. |
| Such equipment cannot overheat in the absence of a coolant | It's true. If there is no water in the system, the electrolysis process is impossible. |
| It is not sensitive to voltage surges | Delusion. The differences affect both heating elements and electrode devices in the same way. |
| It is necessary to use only special types of thermal sheets | Indeed, the requirements for the liquid poured into the system are quite high. |
| Separate requirements for the grounding system | This is certainly true, but any electrical appliance requires high-quality grounding. |
| Susceptibility to scale formation on electrodes | There are no significant differences from other species here. |
| Great difficulty in installation | Not confirmed. There are no special difficulties in installation |
Thus, we can conclude that the electrode devices, around which the controversy still does not subside, are quite good and reliable. But what do those who have already purchased and installed such a water heater say?
They are even so
Although many complain about the rather high power consumption during operation.
Positive and negative qualities of induction devices
The principle of operation of such equipment is fundamentally different from other devices. All the work is done here by a magnetic field, which is generated by the voltage in the network.The price of induction electric boilers for heating in a private house is slightly higher than for other types, but there are reasons for this.
And these are induction boilers for heating
The main advantages of such units are:
Among the shortcomings, one can note the rather large dimensions, high cost and the possible occurrence of hum during operation. You can buy an induction boiler at a price of 30,000 rubles.
Such equipment is produced in two types - VIN and SAV. Let's talk about them now.
What is the difference between SAV boilers and VIN
The main difference is the presence of a frequency converter in VIN boilers, which is absent in SAV. The main difference here is that in SAV heaters the role of the secondary winding is played by a closed pipe system. In a short video clip, you can learn more about SAV devices:
This is the induction boiler SAV
Some information about VIN boilers
How to choose an electric boiler for a private house: the nuances that need to be considered
It is not so easy to choose an electric heating boiler. In this case, it is necessary to take into account many parameters of the equipment, as well as the possibility of installation, safety and ease of use of one type or another. Do not forget about the preferences of the home craftsman or home owner.The main thing that you need to decide on before choosing a heating boiler for a private house is its type and the required power.
Such boilers for heating do not require periodic maintenance.
For example, if we take average values for the calculation, to heat a house of 100 square meters, an electric boiler should have a capacity of about 34 kW. Below we will try to figure out how such calculations are performed.
How is the required power of the device calculated for the area of \ u200b \ u200bthe premises
To ideally calculate the required power of the electric heater, it is necessary to make a lot of calculations. Usually taken as the required average. In order to make it clear how this is done, let's take an example of selecting an electric boiler for heating a house of 50-60 square meters. Knowing the height of the ceilings, we first calculate the volume of air in the premises. With this parameter of 2.7 m, the total volume will be 162 m3... Now you need to count the number of windows and doors, adding 100 and 200 watts per unit, respectively. Let there be 6 windows and 4 doors. We get 162 × 40 (average required power) + 6 × 100 + 4 × 200... We get a value of 7880 watts. Now all that remains is to multiply this value by the multiplying factor, which is different for the regions, as well as by 1.5 - the error for cooling from the floor and walls. 7880 × 1.3 × 1.5 = 15366.
Schematic representation of the operation of a heating boiler
In total, we get 19976, which means the required power of the electric heater for rooms with a similar area of 20 kW. In a similar way, you can calculate the power of the required electric boiler for heating a house of 200 square meters. But it is still better to use automated payment systems. We bring to your attention an online calculator designed for this purpose.
Online calculator for calculating the required power of an electric boiler for a home
Review of the most popular manufacturers and their models among buyers
Prices for electric heating boilers for private houses may differ not only depending on the brand, but also on the power supply. Such devices can operate from a single-phase network of 220 V or a three-phase network - 380 V. The question of efficiency must also be considered - electric boilers for heating operating on the principle of induction are more acceptable in this parameter, but their initial cost is quite high.
Let's take a look at the different options to get some idea of the cost of such equipment.
A 220 V heating boiler is rather small in size.
Single-phase boilers powered by 220V: popular models and their cost
The Russian manufacturer is quite popular. This is not accidental, because at a lower cost of such boilers, it is easier to purchase spare parts for them than for foreign models. For this reason, to begin with, we will consider such models as KVE, and already in the final review we will pay attention to the well-known models of foreign brands present on the Russian market.
Table 2. Single-phase boilers powered by 220 V
| Model | power, kWt | Average cost, rub. |
|---|---|---|
| KVE1 / 2 | 2 | 3100 |
| KVE1 / 3 | 3 | 3200 |
| KVE1 / 4 | 4 | 3300 |
| KVE1 / 5 | 5 | 3400 |
| KVE1 / 6 | 6 | 3500 |
| KVE1 / 7 | 7 | 3600 |
| KVE1 / 8 | 8 | 3800 |
| KVE1 / 9 | 9 | 4000 |
When compared with the cost for which you can buy an electric boiler for heating a house of 220 V. more famous foreign brands, the price is undoubtedly lower. Although not to say that this difference is too great. For example, an Ariston water heater, model ABS ANDRIS LUX 10 UR 3100605 with a power of 1.2 kW and a 10 liter tank can be purchased for 4300 rubles.As you can see, the difference is hardly noticeable.
The use of electric boilers for heating private houses 220 V is impossible if the areas of the premises are large. Such devices are not very powerful. So it is worth turning to models operating on a three-phase 380 V network.
But 380 V is a little larger
Three-phase electric boilers380Vfor heating large areas
Table 3. Model overview
| Model | power, kWt | Average cost, rub. |
|---|---|---|
| KVE3 × 1/3 | 9 | 6300 |
| KVE3 × 1/4 | 12 | 6600 |
| KVE3 × 1/5 | 15 | 6900 |
| KVE3 × 1/6 | 18 | 7200 |
| KVE3 × 1/7 | 21 | 7500 |
| KVE3 × 1/8 | 24 | 7800 |
| KVE3 × 1/9 | 27 | 8100 |
If we draw an analogy with similar products of foreign brands, their cost may be higher by 2000-3000 rubles. But for premium options, the cost can be 100,000-200,000 rubles.
The fact that the cost of three-phase boilers is higher is nothing special. The manufacturer understands that a single-phase boiler simply cannot cope with heating a house for 100-200 m2... In this case, there is simply no other way out but to buy an electric boiler for heating a house for 380 V.
But the question remains, what to do if not only heating is required, but also hot water supply in the home. In this case, the only right solution would be to buy a double-circuit water heater.
Double-circuit water heaters with the ability to connect hot water
Prices for double-circuit electric boilers for heating a private house are slightly higher. This is not surprising, because such devices are therefore called mini-boiler rooms. They enable hot water supply in the house. In this case, the coolant of the heating system does not come into contact with the hot water supply at all.
Consider the models of the same Russian brand.
Table 4. Double-circuit water heaters with the ability to connect hot water supply
| Model | power, kWt | Average cost, rub. |
|---|---|---|
| KVE3 × 1/6 - 2 | 36 | 10500 |
| KVE3 × 1/7 - 2 | 42 | 11000 |
| KVE3 × 1/8 - 2 | 48 | 12000 |
| KVE3 × 1/9 - 2 | 54 | 12500 |
| KVE3 × 1/7 - 3 | 63 | 16500 |
| KVE3 × 1/8 - 3 | 72 | 17100 |
| KVE3 × 1/9 - 3 | 81 | 18000 |
As you can understand, the power consumption of such devices is much higher. There are few reviews on such models on the network, but for the Korean counterpart Elsotherm B23Fi they are mostly negative. For example, one of them is from the cultural capital.
Double-circuit heating boilers are more expensive, but more convenient and functional
In general, the electric boiler providing hot water supply and heating is convenient and functional. You just need to choose it correctly, so as not to bite your elbows in the future.
Electric boiler for heating a private house: prices and characteristics in the final review
Let's move on from one specific brand to a general overview of the most famous brands that produce electric boilers for heating private houses, prices and reviews of foreign models, and also consider some general characteristics.
Table 5. Electric boiler for heating a private house
| Make and model | Maximum coolant temperature, degrees С | Tank volume, l | power, kWt | Average cost, rub. |
|---|---|---|---|---|
 "Ariston" ABS PRO ECO INOX PW 80 Slim | 80 | 80 | 2,5 | 10000 |
 "Ariston" BS PRO R 80 V | 80 | 75 | 1,5 | 7000 |
 "POLARIS" AQUA SLR 50 V | 50 | 75 | 1,5 | 11000 |
 PS 30V "POLARIS" | 30 | 75 | 1,5 | 4600 |
 EVAD DE LUXE W120V | 120 | 75 | 1,5 | 6300 |
 EVAD DE LUXE W50V | 50 | 70 | 2 | 4400 |
 Zerten VN 100 | 100 | 75 | 1,5 | 5700 |
 OASIS FN-15L | 15 | 70 | 1,5 | 4000 |
Looking at the rating of electric boilers for heating a private house, compiled by us on the basis of customer reviews on the Internet, one can be glad that the domestic manufacturer is not inferior to the foreign one in terms of price-quality ratio. And in order not to be unfounded, we suggest that you familiarize yourself with some of the opinions of buyers that we could find on major resources.
Such a boiler will provide a family not only with heating, but also with hot water.
Those of the readers who are already familiar with our articles know that we are not praising or denigrating any product, but are trying to approach the reviews comprehensively. That is why we will explain with the example of one of the reviews why the Gorenje brand was not included in our rating. We are talking about the GBFU 80 model.
It is possible that there are isolated cases, but the "best" should not have this.
Step-by-step instructions for connecting an electric boiler
To install an electric boiler for heating in a private house, you will need initial skills in working with electrical networks, namely the ability to hold a screwdriver in your hands and have your head on your shoulders.
Table 6. Installation of an electric boiler
| Photo example | Action being performed |
|---|---|
 | The first step is to turn off the power supply from the input machine. All work is performed with the voltage removed. If you are not sure that someone will not want to turn on the voltage again, it is better to put a person near the input automatic machine or hang a sign “Do not turn on! People are working! " |
 | Installation always starts with a ground wire |
 | After it we connect "zero" |
 | And only in the last place, the "phase |
 | After that, it is necessary to stretch all the contacts so that there is no heating.But this is when connected to a single-phase 220 V network. But what about the three-phase? |
 | The table shows which section you need to choose a wire depending on the power |
 | We disconnect the wires from the thermostat and from the bar |
 | Next, we connect the ground wire and zero core, by analogy with the previous installation |
 | The next step is to connect the three phase wires to the thermal relay. In this case, the sequence of their connection does not matter |
 | Something like this should look like |
The question of how to connect an electric boiler to the heating system is even easier.
Table 7. Connecting an electric boiler to the heating system
| Photo example | Action being performed |
|---|---|
 | We mount control pressure gauges and a safety valve to the heater |
 | The next step is to connect the expansion tank |
 | A circulation pump is mounted below ... |
 | ... which is connected to the entire heating circuit |
 | The supply is also mounted |
 | All connections are checked. The broach should not be weak, but you should not overtighten the nuts either |
 | It remains to connect the circulation pump to the special terminals that are inside the control unit |
As you can see, such work will not be particularly difficult, but it will require care and accuracy. Before starting such work, experts advise to draw up a piping diagram for an electric heating boiler, so that later installation is easier. The very same heating scheme for a private house with an electric boiler must be preserved after the end of the work - it may come in handy more than once in the repair and maintenance of highways.
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Summarizing
Of course, electric water heaters for heating systems are devices that sometimes cannot be done without. It is for this reason that it is worth approaching their choice very carefully and comprehensively. You should not chase too cheap models - they can ultimately cost many times more, due to the funds spent on repair and maintenance.
Some boilers for heating are already equipped with circulation pumps
We hope that the information presented by us today was useful to the dear reader. If you have any questions on the topic, ask them in the discussion. And we will try to answer them as fully and objectively as possible. We will also be glad to learn about your experience in purchasing or installing such equipment - it can help others to make the right choice.
And in conclusion, one more short video on the topic.
Video: electric boiler TENKO mini 4.5 kW, a detailed overview, connection and installation in the heating system
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