The boiler is the main element for any independent heating system. This element also serves as a generator for thermal energy, its performance is very good. From a number of factors depends on what will be the cost of installing the device and its purchase as a whole. Including the calculation should take into account the mode of residence and the location of the building, features of the building and size. And this list is far from complete. It is easy to understand what actions we will need. The choice of the devices themselves often also depends on the calculation.
Rice. one Modern model heating deviceThe type of fuel and the operability of the installation are selected precisely according to the results of the calculation, the boiler will only fully perform its function in this case. An electrical appliance will be the most convenient and relevant solution in houses with an area of up to 300 m2. Thanks to this, a reliable heating system is created, which does not cause almost any trouble in the future. An electric heating boiler gives an efficiency of up to 98 percent, the performance always maintains a fairly high level, the calculation is easy to make.
Extensive optimization options also make an electric boiler a very convenient acquisition, in addition to its other advantages. Installation is possible anywhere, the presence of electricity is sufficient. An electric boiler can become an additional source of heat for an existing system, or be used separately. The calculation must also take this into account.
Compared to devices powered by other sources, an electric heating boiler can be cheaper already at the stage of purchase. No need to contain a chimney to remove gases, the device is environmentally friendly. Power also does not affect overall safety, how much it can go away is an equally important issue.
Consumption of electrical energy. How to define it?
We will need some number of calculations to achieve the desired result.
In addition, the calculation requires taking into account a number of parameters:
- Average daily duration of work at maximum load;
- mode of residence;
- efficiency and productivity;
- Calculation of operating time in the heating season;
- The volume of the coolant in the heating circuit;
- The size of the tank at the heating device;
- Calculation of the heating area;
- Heating device voltage;
- Calculation of the cross section of the power cable;
- Calculation of the volume of heated rooms;
- The number of circuits in the equipment.
The calculation involves the use of average values. Several adjustments are required for factors such as the type of thermal insulation used, the thermal conductivity of the walls, temperature readings, and so on. Power must also be taken into account.
An electric heating boiler requires the use of a special cable. The main factor in choosing it is power. There is a simple empirical relationship here, which is not difficult to understand: no less than the heating power, expressed in kW, there should be a cable cross-sectional area in mm2 for a single-phase electric boiler. This makes the calculation easier. It is necessary to coordinate your actions with the authorities that control the use of resources if the indicator for the boiler is at the level of 10 kW or more.
Rice. 2 The device from the inside Calculation examples. The easiest ways
An efficiency close to 100 percent can only boast of an electric heating boiler. Throughout the life of the device, this indicator will remain stable, the numbers confirm this. The level may change, but the difference will remain small, it all depends on the specific conditions.
About 30-35 kW is the waste of electricity to heat one cubic meter. The thermal insulation of the structure can affect this parameter, but not to a significant extent. The power of the heating boiler should be 15 kW if the house is heated on 150 sq.m.2 and with a room height of three meters. Using this formula, it is easy to calculate the power of an electric heating boiler. When the device is just purchased, it is best to calculate in advance so that there is a small margin. The calculation is easy to do.
If there is not enough power, the temperature in the room will decrease. It is much more difficult to compensate for such a disadvantage than simply putting the device on a weak operating mode. And the calculation of the boiler will not help. You will either have to install additional equipment for heating, or insulate the building itself.
There are a number of important rules here:
- The power of an electric heating boiler must be known in order to calculate the annual need for electricity.
- The resource usage for a cauldron can be known for the entire season if the total price for its use is known.
- The calculation will be like this. The resulting value is divided by two. An electric boiler simply cannot work at full load all the time. The operation of the boiler is not so necessary during the thaw period.
- To get the same figure, but for a month, we simply multiply the final figure by 30. This process is not something very complicated.
It is generally accepted that we need heating with a boiler for seven months. Depending on climatic conditions, this information can be adjusted. The monthly electricity consumption must be multiplied by the duration of the heating period to get the result for the whole year. But you should not consider it as accurate as possible, the difference in reality can be up to 15-20 percent, even the most accurate approach will not save you from errors.
Often the calculation is made on the basis that each consumer needs about 3 kW. But in practice, such a power of boilers cannot cope with the loads. This is especially true for regions with a cold climate, where the energy consumption of the boiler may increase.
Rice. 3 Convenient parameter adjustment Is it possible to consume less electricity?
The calculation helps to understand to what extent electric heating can be beneficial.
The following tips are simple, but their implementation is enough to ensure that electricity is consumed in smaller quantities:
- The easiest way to start is by warming the house itself. If there are old windows inside, and they do not close tightly, then the losses can be very serious. Heating costs will decrease significantly if you install modern plastic windows, add air chambers in the amount of a couple of units. The electric boiler itself will help in this, the consumption of electricity is reduced immediately.
- It is necessary to insulate the foundation and roof. Power almost does not depend on this, but the result will definitely be different. The main thing is to see in advance in what quantities the material will be needed, what properties it should have. The expense depends on this not least.
- It is better to pay for the operation using multi-tariff accounting. Thanks to this, it is easy to calculate when the electric boiler will be most profitable to use.
- To speed up the movement of the coolant, you can install injection equipment. Characteristics in this mode will allow the heat source to operate longer, since the boiler walls and the hot coolant are in contact for a minimum time.
- One of the most affordable solutions is to mount other types of heating devices that use fuel for their work.
- It also uses ventilation with a recuperator. If during the ventilation of the premises a certain amount of heat is lost, then with the help of this device it will be returned. If the power is sufficient, then it will not be necessary to practically open the windows for ventilation.
Electricity will be spent in less quantity. And indicators of humidity and purity of air will maintain a normal level. Power continues to please for a long time.
You can use the simplest formula.
- W=S x Wsp.10m2.
In this formula: W- power of the device in kW, S- room area in square meters, Wud- specific power indicator, for each region it is determined separately.
For example, in middle lane this value is either 1 or 1.2. As a result of the calculation with such figures, we get 16 kW. If the model is double-circuit, knowledge of the DHW circuit will also be required.
Each manufacturer is now trying to provide the buyer with a complete set of equipment that he may need, power is also taken into account. The electric boiler is no exception. It comes with a programmer, a pump for coolant circulation, expansion tank. Thanks to this, it is easy to understand what the power indicator of an electric boiler should be. Even a novice user can handle it.
In addition, devices to protect equipment and special cables are mandatory. Thus, the installation can be completely done by hand. The power of the boiler does not matter.
But sometimes self-completion is required. For those who understand electrical models, this solution often becomes the most relevant. Including power. The power supply system can be used of the usual type if an electric boiler is installed, the power of which reaches 6 kW.
Recently, the electricity consumption of an electric boiler has become no less important than the installation of a special pump in the system. This solution also helps to understand how much electricity is wasted, and why. In this case, the consumption is significantly reduced. It will be possible to use pipes with a smaller diameter in the system than in a normal situation. A wet rotor pump is the main type of equipment that can most often be seen in private homes. Its power is quite adequate.
- The rotor is surrounded by a liquid that is never pumped by electrical equipment. Resource consumption becomes more profitable.
- No additional fan is required as the unit never overheats. Boiler power is sufficient for loads in normal mode.
- Due to the fact that there is no fan, the operation of the entire system becomes almost silent. In residential areas, this becomes especially relevant, the power does not suffer from this.
Such pumps themselves can support automatic or manual adjustment. Power in this case does not play a big role. The first option is the most preferable because it saves energy. Then the heating itself with an electric boiler becomes more profitable.
How much does his job cost? To make a calculation, it is enough to know about some features of operation. For example, what temperature is most often maintained indoors. Concerning general scheme for heating a house, it is better to choose forced circulation. This is also the best option that allows you to achieve maximum results with minimal investment.
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The purchase of equipment for home heating is preceded by the calculation of the power of the electric boiler and other elements of the system. This indicator is the main parameter of the device, according to which it is determined whether the model of the heating unit is suitable for heating a particular building or not.
Thus, before purchasing equipment, you should perform the calculation according to the passport data of electrical equipment.
Choosing the power of heating equipment
Knowing the required power of an electric boiler for heating a house, one should not forget that its permissible total value for a building is limited by the relevant district services serving the power grid. In case of exceeding the set value, a limiting machine is activated, disconnecting the premises from the power supply.Thus, when choosing equipment of a certain model, first of all, they find out how large the power consumption of the electric boiler is and then they calculate all the necessary parameters of the device.
Currently, manufacturers of heating units produce electric boilers not only with a fixed power, but also with a simulated one. Experts recommend giving preference to models with a constant value, which allows you to prevent power outages when the limits are exceeded, which occurs when using devices with a simulated indicator.
The amount of electricity consumed does not depend on the type of unit chosen. This value is affected by the amount of energy received heating system from the electric boiler.
What does power depend on?
The power of the boiler is provided by heating elements (tubular electric heaters) - they are located inside the heat exchanger of the device. During their operation, the coolant is heated, which is then, with the help of circulation pump is sent to the heating system.
The calculation of the power of the electric boiler is made in kW, and this parameter applies specifically to heating elements. It should be borne in mind that this indicator depends on how many heating elements are installed, and it can be 2-60 kW.
Features of carrying out calculations for an electric boiler
When calculating an electric boiler for heating a house, you need to consider that electrical devices have different performance characteristics, while one of the most important is the thermal indicator. It is necessary to replenish heat losses at home and ensure regular hot water supply. Many owners of private houses are interested in how to calculate the power of an electric heating boiler. See also: "".It is calculated for each specific case separately, taking into account:
- heating area;
- materials from which walls and ceilings are built;
- degree of thermal insulation of the building;
- glass area of the building.
All of the above values must be taken into account when carrying out heat engineering and to clarify the amount of energy needed to provide residents of the house hot water.
In order to install an electric boiler, the power calculation is performed according to the formula W = S x Wsp / 10 m², in which:
- W means the power of the device (kW);
- S - heated area (m²);
- Wsp - specific power of the unit, it is set separately for each region.
How to choose the right boiler power, look at the video:
Scope of application of modern electric boilers
There is an opinion that electric boilers are able to heat sufficiently only small-sized houses. Such a statement is erroneous, since manufacturers produce not only low-power electric boilers, but also units that provide a comfortable stay in buildings with an area of \u200b\u200bup to 1000 "squares". They are usually used as backup equipment if the main system fails because the cost of electricity is high.
Low-power boilers, which are three-phase and single-phase, are installed in small houses. Devices with a power of more than 6 kW are also produced in multistage, with their help you can significantly save on paying for electricity (read: "").
Serves as the basis for the heating system. It is its performance that has a direct impact on the ability of the communication network to provide the home with the required amount of heat. If you correctly and correctly calculate the power of the heating boiler, this will eliminate the need for extra costs associated with the purchase of additional devices and their operation. When carrying out preliminary calculations, the selection of equipment will be correct, that is, its heat transfer, laid down by the manufacturer, will help in maintaining its technical parameters.
Base for calculations
The calculation of the power of the heating boiler is a rather significant point. As a rule, this parameter can be compared with the total heat output of the heating system, which is designed to provide a house of a certain size, with a given number of floors, as well as the corresponding thermal properties. For the arrangement of a small private or country house there is no need to purchase a very powerful boiler.
Heating system and boiler power are calculated depending on the area - this is the main parameter if the heat engineering of the building is considered according to the regional climate. In this case, the most important parameter is the area of \u200b\u200bthe house.
What affects the calculation?
If you want to calculate the power of the heating boiler as accurately as possible, then for this you can use the method provided by SNiP II-3-79. In this case, when carrying out professional calculations, the following factors must be taken into account:
- average regional temperature in the winter season;
- properties used for the construction of enclosing structures of the house;
- type of wiring of the heating circuit;
- the ratio of the areas of load-bearing structures and openings;
- information for each room separately.
Subtleties of the calculation process
So, the calculation of the heating of the house should be made on the basis of the plan of the house, which serves as the most important document for the calculation. In order for the result to be as accurate as possible, it is required to use information such as data on the number of units of digital and household appliances, since it also releases heat into the room in a certain way. However, autonomous heating can be organized without the need for such accurate calculations, and everything can be purchased with a small margin. This will be the right decision. Most often, the power of heating boilers is rounded up to some value, so purchasing equipment 20-30% more powerful than necessary is the right solution to the problem.
Required parameters
The most primitive calculation method uses this approach: for every 10 square meters of a well-insulated building with a standard ceiling height, 1 kilowatt is required to organize heating. If the power of the heating boiler is calculated, which is also used for hot water supply, then for correct calculations it is necessary to add at least 20% more.
For an autonomous heating circuit with unstable pressure in the boiler, it is necessary to add a device, which will increase its power reserve in comparison with the calculated value by at least 15%.
Accounting for heat loss
Regardless of whether the calculation is made of the power of an electric heating boiler or a gas one, the operation of the entire system is associated with a certain percentage. Ventilation of the premises is necessary, and if the windows are constantly open, then 15% of the energy will be for everything. With poor wall insulation, approximately 35% will be required to compensate for this shortcoming. Window openings are made so that 10% of the heat goes out, and even more when using old window frames. In the absence of floor insulation, another 15% of valuable heat will go into the ground or basement. The roof is a heat loss of 25%. Before calculating the power of the heating boiler, it is necessary to take all this into account and display it in the calculations.
The simplest formula
In any case, it is required to round off and also increase the resulting value in order to provide a certain margin. That is why, to determine the required value, you can use a fairly simple formula:
- W \u003d S x W beats, where
S represents total area heated building, taking into account residential and household rooms in sq. m;
- W is the power of the heating boiler, kW;
- W beats. represents the average statistical specific power applied taking into account a specific climatic area (this characteristic is based on many years of experience in the operation of various heating systems in the regions).
By multiplying the area by the specified indicator, you can get the average power value. It is adjusted based on the features mentioned above.
Electric boilers
Before purchasing any equipment, you need to clarify its main characteristics and how they correspond to the features and requirements of your system. Calculating the power of an electric heating boiler is a complicated procedure, but you need to know this parameter, since it will tell you whether the device is suitable for your particular case or not. In the case of such equipment, power is a paramount parameter, since it is related to the limits set by district power plants. If this value is exceeded, then there is a high probability of operation of limiting machines, due to which the house can be disconnected from the supply of electrical energy. When choosing equipment of this class, you must be based on the allowable power, not trying to exceed it, and also correctly calculate the required boiler performance.
At the moment, on sale you can find equipment with a fixed and modulated power. Preferably, samples whose value is constant, so that you can avoid power outages due to exceeding the limit, which often happens with devices with modulated indicators. The choice of this type does not affect the economic indicators of energy consumption. This characteristic only affects the amount of energy that the heating system receives from the boiler.
The meaning of the results
In an electric heater, heating elements are used inside the heat exchanger. They are responsible for the power of the entire unit. Heating of the coolant is carried out during the operation of the heaters and then by means of a circulation pump, which supplies everything to the system. For such boilers, as well as other devices in this category, the power is calculated in kilowatts, while we are talking about the heating element parameter. Depending on the number, this parameter can be in the range of 2-60 kW.
What affects power?
The operating parameters of electrical devices can be different, among them one of the most important is the thermal characteristic necessary to replenish the heat loss of the building and provide hot water. The calculation of the power of the heating boiler in this case is based on such data as: the heated area, the thermal insulation qualities of the building, the materials of the floors and walls, the surface area with glazing. This set of parameters should definitely be taken into account when carrying out heat engineering calculations for each house, as well as specifying the energy required to prepare hot water.
Electric boiler only for small spaces?
Many are convinced that this type of apparatus can only be used to provide normal temperatures for small houses, so their power is very limited. But this is an erroneous assertion. At the moment, on sale you can find boilers that can provide heating for houses with an area of up to 1000 square meters. In this case, the question arises related to the appropriateness of using such equipment. In such cottages, they are most often installed as backup power sources that work when the main one fails. Small rooms allow the use of equipment characterized by low power. These are single-phase and three-phase boilers. Devices with a power of more than 6 kilowatts can be multi-stage. With their help, you can best save electricity, since you can not use them constantly in the autumn-spring period.
Such equipment has a whole range of advantages compared to electric. These are economical and highly efficient devices that provide the proper level of heat transfer. Until recently, the installation gas equipment required a special room - a boiler room. At the moment, this is no longer such an urgent requirement, since there are many models with closed camera combustion. The calculation of the power of a gas heating boiler is carried out taking into account the following significant parameters: the area of \u200b\u200bthe room; boiler specific power per 10 square meters, corresponding to the climate in the region. Calculation of heating by area is the most common practice. For specific power in zones with different climate conditions, there are established values: Moscow region 1.2-1.5 kW; northern regions 1.5-2.0 kW; southern regions 0.7-0.9 kW. Most often, for convenience, an average value is used, which is equal to 1. It turns out that a power equal to 1 kilowatt for every 10 square meters is usually preferred. m of premises.
conclusions
Usually, the calculation of the power of the heating boiler and the heat loss of the building is carried out at the design stage. To ensure the efficiency of the heating system, special conditions must be observed - the arrangement of an appropriate room, which will be equipped with ventilation and a chimney. Now you know how the heating of the house is calculated.
In the rather harsh conditions of most regions of our country, having a well-functioning heating system is an important task. And the heart of the whole system has always been a heat source or boiler. Today you can buy coolant heating devices of various designs. They will differ both in their functionality and in the fuel used. Which one to choose is the decision of the owner of the house. But here it is important to choose a device that is suitable in terms of power. This is what will be discussed in this article. Here we will talk about which electric boilers for heating houses with an area of one hundred square meters are better to choose.
Advantages and disadvantages of electric heating boilers
Many owners of private houses very often choose electric boilers for heating. This is facilitated by a number of advantages that these devices provide. Namely:
Advantages such as ease of installation and operation, low price, automation and high efficiency, make electric boilers quite popular for heating a private house. In addition, there is no need to worry about the purchase of fuel. But such high-tech equipment also has its drawbacks.
The disadvantages of electric boilers include:
- if electricity is supplied regularly, then the house will be warm. But the cost of this fuel is constantly growing. As a result, heating costs are also rising. Today, during the winter months, a 100-square-meter house can run into double digits for electricity bills;
- Another disadvantage is associated with power supply organizations. In many localities there is a limit on the amount of electricity supplied for one private household. Very often, these capacities simply may not be enough to maintain the desired temperature in the house;
- also to the minuses include the great depreciation of power grids, especially in rural areas.
But, if everything is in order with the supply of electricity, then using electric boilers for heating is the best option. And electricity costs will be high only in the cold months, besides you can control your consumption simply by reducing or increasing the power of the boiler.
Types of electric heating boilers
Before talking about the power of an electric boiler for heating a house of 100 square meters, it is worth learning about their varieties. Today on sale you can find a variety of models, which may differ in different parameters. Namely:
What equipment to choose is up to the owner of a private house. The main thing is that the power of the electric boiler is sufficient to maintain a normal temperature.
Calculation of the power of an electric boiler for heating a house with an area of 100 square meters
Making correct calculations of the power of heating boilers is an important task. Comfortable living in the house in the winter will depend on the correctness of her decision.
When calculating, it is necessary to study some parameters of the house. Namely:
- volume of all heated rooms. This is the most important indicator. According to the requirements of sanitary standards, 40 W of power should fall on one cubic meter of the room. heating appliances. Calculating the cubic capacity is quite simple. To do this, the area of \u200b\u200ball rooms is multiplied by the height of the ceiling. In our case, taking the standard floor-to-ceiling distance of 2.7 meters, we get 100 sq.m. * 2.7 m = 270 cubic meters;
- you need to know the number of windows and doors in the house. Through these elements, heat can leave the room. 100 watts of heating power are added to each window, and 200 watts to the door. Let's take (conditionally) that in a house with an area of 100 square meters there are 6 windows and the same number of internal doors. So, 1800 W should be added to the power;
- you also need to take into account the coefficient of your region. It is no secret that in our large country winter is not equally cold everywhere. That's why for the southern regions, a special coefficient is taken 0.7-0.9, for the central strip it will be 1.2-1.4, and in the northern regions, where winter is the most frosty, the coefficient is 1.7-1.9. For a house in central Russia, let's take an average value of 1.3;
- since the house is an individual structure, it is surrounded on all sides by unheated areas. To compensate for the cold coming from the floor, attic and external walls, it is necessary to apply another coefficient equal to 1.5;
- also worth adding 20 percent in case of abnormally severe frosts and the same amount if you have a double-circuit boiler (for heating water for plumbing).
Given all of the above, you can calculate the required power of an electric boiler for heating a house with an area of 100 square meters.
Before buying any heating equipment each client specifies Main characteristics devices and how they meet the required requirements. The main such indicator can be safely called the power of the electric boiler. Knowing it, everyone will immediately determine whether the model is suitable for his needs or not. In order to operate at least with approximate figures, you need to calculate them in advance. It is also important to understand what factors they depend on.
The simplest method is to calculate the required power of an electric boiler, based on the area of \u200b\u200bthe room that is planned to be heated. So, in areas where the climate is mild, it is necessary to use a proportion of 100 W per 1 sq. m. In the southern or northern regions, the indicators may differ by 20 units.
Of course, this approach is not correct. But in order not to freeze in winter, it is better to buy an installation with high performance. How to correctly calculate the power of an electric boiler, having only an area? Very simple. True, for this it is still necessary to know the specific coefficient in order to calculate the region. For warm latitudes, it is 0.7. Averages use 1.2. And northern - 2.
Important! Be sure to remember that in case of an incorrect definition, excess electricity will be consumed. This can significantly increase operating costs.
To calculate the power of the installation, you need to substitute the values \u200b\u200bin the formula: W \u003d S * K, where
W is the calculated parameter of the equipment;
S is the area of the room to be heated;
K is the coefficient.
The approach is not ideal. But at the same time, he takes into account the real climatic conditions, which directly affect the rate of cooling of the building.
Often there are situations when the owner of a house or apartment has installed a high-capacity boiler. And yet the room is still cold. Despite the fact that the use of what equipment is provided - an electric or gas boiler.
First of all, it depends on the impossibility of containing the energy inside the structure.
Power selection depending on heat loss
So, it is already clear that the power of the electric boiler is selected, not only based on the existing quadrature. Since this indicator does not cover the situation completely, for which the owner of the house or apartment may pay in the future.
When choosing a unit, it is necessary to take into account heat losses. So, for example, if a building has obvious elements through which energy escapes - panoramic windows are installed, there are gaps in the doors - it will be difficult to heat such a structure, regardless of the installation. Especially if low power electric boilers are used.
It is important to understand that the unit must generate more heat than the room loses. At the same time, it must be borne in mind that energy leaves the house constantly, which means that the equipment will always work. This is definitely unacceptable. Any heater must rest. Therefore, it is necessary to calculate the power of the boiler with a margin. The thing is that with constant work, the installation will quickly fail. And this is quite unpleasant, especially when it's cold outside.
Before buying a boiler, you need to determine the heat loss of the building, as this will directly affect the resource consumed, or rather, its quantity. You will need the following information:
- the material from which the walls and ceilings are made;
- their thickness;
- window area and number of chambers.
All raw materials have different thermal conductivity. It can be seen in the corresponding table:
In order to determine the numbers we need, it is necessary to take the thickness and divide by the thermal conductivity coefficient of a particular raw material. Each component is calculated separately. After that, all the numbers must be added.
Then, as we find out the individual elements, the calculated overall indicator is taken. To do this, you need to multiply the area of \u200b\u200bthe heated room by the temperature difference in the house and on the street. The result obtained is divided by the total thermal resistance. In this case, the delta is taken for maximum performance.
This approach will allow you to calculate the most accurate parameters for the equipment. Therefore, do not be lazy once again, but use this particular method. Of course, you need to spend much more time on it, but the result will be as close to the truth as possible.
Power selection depending on the coolant
In order to choose the right electric boiler, it is also important to remember the coolant with which the heating will be carried out. To calculate we need to know:
- its volume;
- what kind of liquid;
- wiring diagram.
It should be noted that the last factor can be called insignificant. Nevertheless, he is still able to slightly change the overall picture.
But the first - volume - is an important parameter. For example, when calculating the most accurate power that an electric boiler should have, the heat accumulator was not taken into account. And such a tank contains a lot of liquid - an average of at least 300 liters. As a result, the system will not perform well.
Important! To heat one liter of water, an electric boiler consumes 0.001 kW of energy per hour.
The unit raises the liquid temperature to a user-set level. Let's take 40 degrees as an example. So, in the case of the first start-up, the coolant will warm up to a maximum of 20 units Celsius. After reaching the set goal, the electrical installation will turn off automatically. Or an external sensor will do it. First of all, it depends on the "stuffing" and the model.
It should be understood that if there is a lot of liquid in the system, along with a heat accumulator, and at the same time the performance of the equipment turns out to be small, it will always have to work. And this is unacceptable. Be sure to know that the use of antifreeze in the heating system also creates unnecessary work for the unit. After all, such mixtures have a lower thermal conductivity. And this will increase energy consumption and duration of work, which is not a positive thing.
When calculating the power of the boiler, it is necessary to take into account heat losses. In addition, it is necessary to check with a specialist whether this or that model can cope with the available amount of coolant. Of course, all calculations can be carried out quickly and as simply as possible, but then problems will most likely appear during the use of the unit.