The heating boiler is the central device of the heating system. To work with maximum performance and to avoid energy recalculation, an accurate calculation of the power of the heating boiler is required. The heat generator, calculated at the proper level, will be able to maintain optimal functionality with much less costs for its maintenance.
Basic calculation
The power of the heating device requires uniform provision of thermal returns to the network. It is designed to supply warm buildings of various sizes, whether it is a multi-storey building or country house.
For optimal heating of a one-story cottage, it is not necessary to acquire an overlooking the powerful boiler, which is designed for heating a 3-4-storey house.
The basis for calculation is the area and dimensions of the building. How to calculate the power of the boiler taking into account other parameters?
What affects the calculation
The calculation method is specified in the construction norms and rules II-3-79 (SNiP). At the same time, it is necessary to take into account the following characteristics:
- Average territorial temperature in winter time;
- the level of thermal insulation of the structure and the quality of materials used for this;
- the end location of the room, the presence of windows, the number of battery sections, the thickness of the outer and interior walls, the height of the ceiling;
- proportional correspondence between the size of the openings and carrier structures;
- wiring form heating circuit.
For the most accurate calculations, the availability of household equipment is often taken into account (computer, TV, electric furnace, etc.) and internal lighting that can produce heat. But it does not have a practical meaning.
Information that needs to be considered mandatory
Each 10 m² of a private house with average thermal insulation, standard climatic conditions of the region and a typical level of ceiling levels (approximately 2.5-3 m) require about 1 kW for heating.
To the power of the heating boiler, which is designed for joint functioning in the heating system and water supply, it is necessary to add more than 20%.
Low-resistant pressure in the boiler and thermal highway will require equipment with a special device with a backup power, which exceeds the calculated indicators by about 15%.
The power of the heating boiler, which is connected to the heating system using the coolant (hot water), should also contain a reserve more than 15%.
The number of possible losses of heat in poor insulated rooms
Not enough high-quality thermal insulation leads to the loss of heat in the following volumes:
- poor isolated walls will pass up to 35% heat;
- regular ventilation of the room leads to a loss of up to 15% heat (temporary ventilation practically does not affect losses);
- insufficiently clogged slots in the windows are passed to 10% of thermal energy;
- a laptile roof will pull 25%.
The simplest formula for calculating the required heat for heating
For exemplary counting, there is an elementary formula: W \u003d S × Wood, where
W is the power of the unit;
S is the magnitude of the area of \u200b\u200bthe structure in m², taking into account all the premises under heating;
Wood is a standard specific rate indicator that is used when calculating in a particular climatic region.
The standard value of the specific power is based on the experience of using a variety of heating systems.
The average information is found to be at the Housing and utilities officer in your region. After that, multiply this value to the total area of \u200b\u200bthe structure, and you will receive the average for the required boiler power.
Forward calculation
Gas is the most common type of fuel. How to calculate the power of the gas boiler? Consider an example of the calculation for a building of 150 m², which is allegedly located in the Krasnoyarsk Territory. Counting is manufactured for a heating system with natural circulation without constant pressure from the pump. Specific power in the region under consideration is 0.90 kW / m².
150 m² / 10 m² \u003d 15 is an intermediate calculation coefficient in which it is implied that 1 kW of the thermal power of the unit is required to separate 10 m² of the area of \u200b\u200bthe heated room.
15 × 0.90 kW / m² \u003d 13.5 kW.
As a result, the average value of thermal energy required by a specific structure with average heat-insulating and climatic indicators was obtained.
If you take into account the use of hot water for the bathroom and kitchen, you will need to add at least 20% to power: 13.5 + 13.5 × 0.2 \u003d 16.2 kW.
It is worth paying attention to the fact that the pressure in the boiler and the heat line can be lowered, for this it is necessary to add another 15% to the power: 16.2 + 13.5 × 0.15 \u003d 18,225 kW.
Given the fact that a certain leakage of thermal energy cannot be avoided, it is necessary to round the result in the most side. It turns out that to ensure the heating of a particular structure with the help of a heating unit on gas fuel, a boiler with a minimum power of 19 kW will be required.
Calculations of power for aggregates on gas fuel are most often performed during the layout of the structure. The reason for this is the initial mark in the project of the arrangement of heating devices, openings for air exchange, chimney, as well as a separate room for heating installation.
If you need to consider heating in an existing structure that does not have the necessary conditions for the placement of the unit on gas fuel, it will be necessary to establish an alternative heating system. An electrical installation is well suited for its role, the counting of the power of which is made by similar calculations.
In addition to the above calculations, the calculation of the thermal power of the boiler can produce a specially created calculator. It is parameters such as the total area of \u200b\u200bthe room, its height, type of windows, etc. To learn thermal power, it is necessary to enter the required indicators to the program, after finding out their exact value.
The calculation of the required power to heat the private house is not such a difficult task, especially if you use the Calculator program. Anyone who wants to save money can cope with it and ensure optimal heating without excess costs of thermal energy.
One of the main conditions for comfort in the apartment is the heating system. And the appearance of this heating, along with the equipment for him, should be taken into account even at the initial stages of the construction of the house. In order, the heating in the house was as efficient as possible, it is necessary to correctly calculate the required boiler power depending on the heated area.
It is on how to make the cost of making the power of the boiler heating, and will be discussed in today's article. Heating systems are different, they all have their own characteristics that should be taken into account during computing.
Formulas and coefficients of calculation
Before proceeding directly to power calculations, let's first consider which indicators will be used.
- The power of the heater is 10 meters square, which is determined taking into account the climatic features of a particular region (Wood):
— for cities located in the north, it is approximately 1.5-2 kilowatta;
- for those, who Located in the south - 0.7-0.9 kilowatta;
- I. for cities in the Moscow region - 1.2-1.5 kilowatta. - The area of \u200b\u200bheated premises - denotes the letter S.
Below is the calculation formula:
Important! There is a simpler method for such calculations in which Wood will be equal to one. Consequently, the boiler power will become 10 kilowatt per 100 meters square. But if you do it all this way, then another 15% need to add to the final result in order to be more objective.
Power table and heating costs
Sample calculation
As we found out, the formula in order to make the calculation of the power of the boiler heating, very simple. But we still give one example of its practical use.
We have the following conditions. The area of \u200b\u200bthe room, which will need to drop, make up 100 square meters. Our region is Moscow, therefore, the specific capacity to make 1.2 kilowatta. If we put all this in our formula, then the following data will be obtained.
How to calculate the capacity of various types of boilers
The way how effective the heating system will be primarily dependent on what type it is. And, of course, it will affect the correctness of the calculations that concern the required power of the heating boiler will affect. If such calculations show the subjectual data, then in the near future you will be waiting for inevitable problems.
If the heat transfer of the device will be less than the required minimum, then in winter it will be cold in the house. If its performance is unnecessary, it will not lead to anything, except for excessive energy costs, and therefore, and your money.
In order to avoid similar troubles, you will need only knowledge of how the power of the boiler is calculated. Also consider the fact that there are various types of heating, depending on the fuel used. Here they are:
- On solid fuel.
- Electric.
- On liquid fuel.
- Gas.
When choosing a particular system, people are often based on the characteristics of a particular region, as well as at the cost of equipment.
Solid fuel boilers
- Relatively low popularity.
- The need for additional space in order to store fuel.
- Availability.
- The operation procedure passes quite economically.
- Such boilers can function autonomously, at least, most of the modern devices provide it.
In addition, another factor that needs to be considered by making the capacity of the heating boiler, is that the temperature is cyclically. In other words, in a room, heated by such a system, the temperature during the day can fluctuate with a gap of 5 degrees.
Important! It is for this reason that solid fuel boilers can hardly be called the best, and if there is an opportunity, then it is better to give up from their purchase. But if there is no such possibility, you have two ways to partially protect yourself from such problems.
- Use whose volume can reach 10 meters of cubic. They are connected to the heating system and significantly reduce heat loss, which positively affects the cost of heating.
- Construct the thermobalon necessary to control the air supply. Thanks to him, the combustion time increases, and the amount of firebox, therefore, decreases.
Thanks to all this, the productivity of the boiler is reduced. All this should be taken into account in the calculations.
Electric boilers
All boilers operating on electrical energy are characterized by the following features.
- They are compact.
- Fuel for them - electricity - it is expensive.
- It is extremely easy to manage them.
- When interruptions on the network, problems with their operation are possible.
- They are environmentally safe.
Actually, that's all you need to remember when calculating the required power for a boiler operating on electricity.
Boilers on liquid fuel
And now let's talk about liquid fuel boilers. In general, they are characterized by the following features.
- Such boilers are not environmentally friendly.
- They use a very expensive type of fuel.
- Another feature is an increased fire safety.
- When they are installed, you must take care of another room, in which the fuel will be stored in the future.
On this features of liquid fuel boilers ended.
Gas boilers
The last type of boilers, which we will talk about today are gas appliances. For most part, they are the most optimal option when installing the heating system. The calculation of the power of the boilers of the heating of this type is impossible to do, not taking into account its features.
- The operation of such boilers is characterized by simplicity and convenience.
- They are economical.
- They do not require additional space in order to store fuel.
- The cost of fuel itself for them (gas) is relatively low.
- Finally, their operation is characterized by increased security.
All, with boilers, we more or less figured out, now we are string about how to calculate the power for radiators in the heating system.
How the power of radiators is calculated
Let's write down that you, for example, intend to install heating radiators with your own hands. Of course, they should be pre-acquired. Moreover, when buying, you must choose exactly the model that is most suitable for you.
All calculations relating to radiators are also fairly simple. As an example, we will consider the room whose area will be 14 meters square, and the height is 3 meters.
As a conclusion
Here we are with you and found out how the power of the boiler of heating is performed correctly, capturing here and radiators. If you are clearly followed by these advice, in the end you will have a very effective heating system, which at the same time will not differ "wastefulness". That's all, good luck to you and warm winters!
Used as the basis for the heating system. It is its performance that has a direct impact on the possibilities of the communication network to provide a dwelling by the required amount of heat. If properly and competently calculate the power of the boiler of heating, it will eliminate the need for unnecessary costs associated with the acquisition of additional devices and their work. In the implementation of 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
Calculation of power boiler heating is a rather significant moment. As a rule, this parameter can be compared with all the heat transfer of the heating system, which is designed to provide homes of certain sizes, with a given number of floors, as well as appropriate heat engineering properties. To arrange a small private or country house there is no need to purchase a very powerful boiler.
Autonomous heating and boiler power are calculated depending on the area - this is the main parameter if the heat engineering of the building will be considered respectively 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 methodology provided by SNiP II-3-79. In this case, when conducting professional calculations, the following factors are required:
- average regional temperature in winter time;
- properties used to build enclosing house designs;
- type of wiring of the heating circuit;
- the ratio of areas of bearing structures and openings;
- details for each room separately.
Subtleties of the calculation process
So, the settlement of the home 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 resulting result as accurate as possible, it is required to use such information as data on the number of units of digital and home appliances, as it also highlights the heat to the room too. However, autonomous heating can be organized and without the need for such accurate calculations, and to acquire everything with a small margin. It will be the right decision. Most often, the power of boilers of heating is rounded to some value, so the acquisition of equipment is 20-30% more powerful than necessary, this is a correct solution to the problem.
Required parameters
In the most primitive method of calculation, this approach is used: for every 10 square meters of premises of a highly isolated structure with a standard ceiling height, 1 kilowatt is required for the organization of heating. If the power of the heating boiler is calculated, which is also used for hot water supply, then for the correct calculations, it is required to add at least 20%.
For an autonomous heating circuit having an unstable pressure in the boiler, it is necessary to add a device, which will increase its power supply in comparison with the estimated value of at least 15%.
Accounting heat loss
Regardless of whether the capacity of the electric boiler of heating or gas is calculated, the operation of the entire system is associated with a certain percentage of the premises of the premises are necessary, and if the windows are constantly open, then for the entire home the heat loss will be 15% of energy. With a weak insulation of the walls, approximately 35% will be required to compensate for this disadvantage. Window openings do so that 10% of heat leaves, and when using old window frames - even more. In the absence of insulation of floors to the ground or the basement will leave another 15% of the valuable heat. The roof is a heat loss of 25%. Before making the calculation of the power of the heating boiler, it is necessary to fully take into account and display in the calculations.
Simplest formula
In any case, it is required to roundage and also increase the value obtained to provide a certain stock. That is why it is possible to use a rather simple formula to determine the desired value:
- W \u003d s x w dd, where
S is the total area of \u200b\u200bheated building, taking into account residential and domestic rooms in a square. m;
- W is the power of the boiler heating, kW;
- W Ud. It is an average specific capacity applied with a specific climate territory (this characteristic is based on many years of experience in various heating systems in the regions).
When the area is multiplying, the average value of the power can be obtained to the specified indicator. It is adjusted on the basis of the features mentioned above.
Electric boilers
Before purchasing any equipment, it is required to clarify its main characteristics and how they correspond to the features and requirements of your system. Calculation of the power of the electric boiler heating is a complex procedure, but it is necessary to know this parameter, since it is he who prompts, the device is suitable for your specific case or not. In the case of such equipment, the power is a primary parameter, as this is due to the limits set by district power plants. If this value is exceeded, then the likelihood of the restrictive automata is large, which is why the house can turn off from the supply of electrical energy. When choosing the equipment of this class, you must be based on permissible power, not trying to exceed it, and also correctly calculate the required boiler indicators.
At the moment, you can find equipment with fixed and modulated power. Preferably, the samples in which the value is constant, due to which it is possible to avoid turning off the electricity due to the exceeding the limit, which often happens to the devices with modulated indicators. The choice of this species does not affect the economic indicators of energy consumption. This characteristic affects the amount of energy that is obtained by the heating system from the boiler.
The meaning of the results obtained
In the electrical heating machine, tanks are used inside the heat exchanger. They are responsible for the power of the entire unit. Heating the coolant is carried out during the operation of the Tan and then through the circulation pump, which supplies everything into the system. For such boilers, like other devices of this category, power is calculated in kilowatts, while it is coming about the parameter of the Tan. Depending on the number of heating elements, this parameter may be in the range of 2-60 kW.
What affects the power?
The operating parameters of electrical devices can be different, among them one of the most important is the thermal characteristic required to replenish the heat loss of the building and ensuring the WVS. Calculation of the power of the heating boiler in this case is made with a support for such data as: heated area, thermal insulation quality of the building, overlap materials and walls, surface area having glazing. This set of parameters must be considered when carrying out heat engineering calculations for each house, as well as clarify the energy that is required to prepare hot water.
Electrocotel only for small rooms?
Many are convinced that this type of apparatus can only be used to ensure normal temperature for small area houses, so their power is strongly limited. But this is an erroneous statement. At the moment, you can find boilers that are able to provide home heating with an area of \u200b\u200bup to 1000 square meters. In this case, the question arises related to the feasibility of using such equipment. In such cottages, they are most often installed as backup power supplies that work at the failure of the main one. Small premises allow the use of equipment characterized by a small power. These are single-phase and three-phase boilers. The machines whose power is more than 6 kilowatts, may be multistage. With their help, you can best save electricity, as you can not use them constantly in the autumn-spring period.
Such equipment has a whole complex of advantages compared to electric. These are economical and highly efficient devices that ensure the proper level of heat transfer. Until recently, the installation of gas equipment required the presence of a special room - boiler room. At the moment, this is no longer so current requirement, since there are many models with a closed combustion chamber. The calculation of the power of the gas boiler of heating is made taking into account the following significant parameters: the area of \u200b\u200bthe room; The specific power of the boiler for 10 square meters corresponding to the characteristics of the climate in the region. The calculation of heating in the area is the most common practice. For specific power in zones with different climate conditions, there are set 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, averaged value is used, which is equal to 1. It turns out that it is usually preferred with a power equal to 1 kilowatt for every 10 kV. m of the room.
conclusions
Usually the calculation of the power of the boiler of heating and the heat loss of the building is carried out at the design stage. To ensure the efficiency of the heating system, special conditions are required to observe - the arrangement of the appropriate premises, which will be equipped with ventilation and chimney. Now you know how home heating is being calculated.
One of the main components of comfortable housing is the presence of a well-thought-out heating system. At the same time, the choice of type of heating and the required equipment is one of the main issues to which you need to answer back at the design stage of the house. An objective calculation of the power of the boiler of heating through the area will eventually obtain a completely efficient heating system.
We will now tell you about the competent holding of this work. In this case, consider the features inherent in different types of heating. After all, they must be taken into account when conducting computing and subsequent decisions on the installation of a type of heating.
Basic rules of calculation
At the beginning of my story about how to calculate the power of the heating boiler, we will consider the values \u200b\u200bused in calculations:
- room Square (s);
- specific power of the heater to 10m² heated area - (W Ud.). This value is determined adjusted to the climatic conditions of the individual region.
This value (W Ud.) Is:
- for the Moscow region - from 1.2 kW to 1.5 kW;
- for the southern regions of the country - from 0.7 kW to 0.9 kW;
- for the northern regions of the country - from 1.5 kW to 2.0 kW.
Power calculation is carried out as follows:
W cat. \u003d (S * Wood.): 10
Tip! For simplicity, you can use a simplified version of this calculation. It is wed. \u003d 1. Therefore, the heat transfer of the boiler is defined as 10kW 100m² heated area. But with such calculations, it is necessary to add at least 15% to the resulting value to get a more objective number.
Example of calculations
As you can see, the instructions for calculating the intensity of heat transfer is easy. But, nevertheless, we accompany it with a specific example.
Conditions will be as follows. The area of \u200b\u200bheated premises in the house is 100m². Specific power for the Moscow region is 1.2kW. Substituting the existing values \u200b\u200bin the formula, we obtain the following:
W boiler \u003d (100x1.2) / 10 \u003d 12 kilowatt.
Calculation for different types of heating boilers
The degree of efficiency of the heating system depends primarily on the proper choice of its type. And of course, from the accuracy of the calculation of the required performance of the heating boiler. If the calculation of the thermal power of the heating system was not performed enough, then negative consequences will inevitably arise.
With the heat transfer of the boiler, less than the required, winter in the rooms will be cold. In the case of excessive performance there will be an overrunning of energy and, accordingly, money spent on the heating of the construction.
To avoid these and other problems, not enough knowledge of how to calculate the power of the heating boiler.
It is also necessary to take into account the features peculiar to systems using different types of heating (each of them you can see further by text):
- solid fuel;
- electric;
- liquid-fuel;
- gas.
The choice of one type or another largely depends on the region of residence and the level of infrastructure development. Important is the possibility of acquiring a certain type of fuel. And, of course, its cost.
Solid fuel boilers
The calculation of the power of a solid fuel boiler must be made with regard to the characteristics characterized by the following features of such heaters:
- low popularity;
- relative availability;
- the possibility of autonomous work - it is provided for in a number of modern models of these devices;
- efficiency during operation;
- the need to preserve additional fuel storage space.
Another characteristic feature that should be taken into account by producing the calculation of the power of heating with a solid fuel boiler is the cyclicality of the temperature obtained. That is, the rooms heated with it, the daily temperature will vary within 5ºС.
Therefore, such a system is far from the best. And if possible, it should refuse it. But, if, it is impossible, there are two ways to smooth out the existing shortcomings:
- The use of thermobalone, which is needed to adjust the air supply. This will increase the combustion time and reduce the number of furnaces;
- The use of water heat accumulators, having a capacity from 2 to 10 m². They are included in the heating system, allowing to reduce energy consumption and, thereby saving fuel.
All this will reduce the required performance. Consequently, the effect of the use of these measures should be taken into account by producing the calculation of the power of the heating system.
Electric boilers
Characterized by the following features:
- high cost of fuel - electricity;
- possible problems due to network interruptions;
- ecology;
- ease of control;
- compactness.
All these parameters should be taken into account by producing the calculation of the power of the electric boiler heating. After all, it is purchased for one year.
Liquid fuel boilers
They have the following characteristics:
- not ecologic;
- easy to operate;
- require additional fuel storage space;
- have increased fire hazard;
- use fuel, the price of which is quite large.
Gas boilers
In most cases, the most optimal option for organizing the heating system. Possess the following characteristic features that need to be considered by making the capacity of the heating boiler:
- ease of operation;
- do not require fuel storage space;
- safe in operation;
- low cost of fuel;
- efficiency.
Calculation for heating radiators
Suppose you decided to install the heating radiator with your own hands. But at first you need to purchase it. Moreover, choose exactly the one that is suitable for power.
- First, determine the size of the room. To do this, multiply the area of \u200b\u200bthe room at its height. As a result, we get 42m³.
- Further, you should know that the 1m³ area of \u200b\u200bthe room in the middle lane is required to spend 41 watts. Therefore, to find out the desired productivity of the radiator, we multiply this figure (41 W) to the volume of the room. In the end, we get 1722W.
- Now we consider how many sections should be from our radiator. Make it easy. Each element of the bimetallic or aluminum heat transfer radiator is 150W.
- Therefore, the productivity we received (1722W) we divide by 150. We get 11.48. Round up to 11.
- Now it is necessary to add another 15% to the figure. This will help smooth the growth of the required heat transfer in the most severe winters. 15% of 11 this is 1.68. Round up to 2.
- As a result, it is added to the existing number (11).
Now you know how to calculate the desired boiler performance, as well as heating radiator. Take advantage of our advice and ensure ourselves efficient and at the same time not a wasteful heating system. If you need more detailed information, you can easily find it in the appropriate video on our website.
How not to strangle and competently select the device so as not to freeze and not thinning the budget - read on. From the article, learn what technique will be correct and necessary for you.
Calculation of thermal loss of the house
We say immediately - there is no single method for calculating the coefficient. The parameter varies depending on your climate. More importantly, it is attentive to treat this stage of preparation. Even the specialist will not determine the eye, without calculations, information on the desired power of the boiler. Even low, such as, can heat the average apartment up to 65m². But what she should surely be - it will be known after filling in a special questionnaire - the document is in free access, anyone will fill it on the Internet.
For the compilation of the questionnaire, experts approached responsibly. Filling the fields, it will not be possible to make a mistake. The only exception is incorrect filling on-line form. All other boiler calculations for home will produce a program.
So, here to what questions you need to be prepared - check:
1. Heat loss through the walls
This parameter affects the area of \u200b\u200bthe facade and the ventilated layer (the walls are with it, and there are without it). The first wall covering is a primary criterion, without which to choose the heating boiler will be too risky. Reinforced concrete or foam concrete, minvata, plasterboard, plywood or wood - material affects the solution, which power to buy solid fuel equipment. The thickness of the first layer of the house is important. For thin-walled houses, buy a middle power boiler - for example,.
2. Heat loss through windows
Important condition. It is logical that with a single-chamber double-glazed window "will leave" more heat than with two-chamber. The area of \u200b\u200bwindows is also important when calculating the power of the boiler. Before filling out the questionnaire, measure it again.
3. Thermal losses through the ceiling and floor
As you understand, it is necessary to install powerful equipment into the room with an attic and unheated basement. Incorrectly chosen power of the device will spoil several winter months spent in a country house - heating is clearly not enough for a comfortable life.
Useful for familiarization:
If everything is done correctly - the efforts will be rewarded with a profitable investment. Consider what they coped with the task - most likely, get the best results for the price and quality.
Why is it important to accurately determine the power of the boiler
The first thing that comes to mind is to save money. Already for this it is worth spending a couple of hours to calculate. Given the good work and the efficient operation of the boiler - the calculation of the power of technology, especially becomes necessary.
Here are some unbelievable scenarios who will inevitably turn out if you do not take into account the foregoing.
Remember: The amendment to the region for our climate is a coefficient of 1.2.
Incorrect power calculation of not such popular, but still encountered a pellet device (for example) and boilers on firewood - the first parameter of the selection. To calculate the parameter - do not be lazy to spend time, otherwise it is not to avoid the above problems in the lack of heat (if we are talking about weak devices) or an irrational overcurrent of fuel (when you select a dear and too powerful boiler, as).
Determination of the boiler power - the most important stage of work
So you got acquainted with the theoretical part of the issue, having received information on the importance of calculating the power of boilers. Now it's time to go to the practical part - the most important. Alternatively, a specialist responsible for the calculation of parameters and installation. But you can find out what technique is really needed.
Pull up when calculating the power from the area of \u200b\u200bthe heated object - it is that it will help to evaluate performance. Consider that at the height of the room in 2.7 m (and such ceilings are almost in all houses), 1kW leaves 10m².
This coefficient is approximate. It affects the climate of the region and, again, the height of the ceilings, the presence of basement, etc.
Tip: in order to calculate the power of the perfect boiler for high ceilings, it is necessary to identify the correction factor, dividing the parameter to the standard 2.7 m.
Example:
- The ceilings are 3.1 m.
- We divide the parameter by 2.7 - we get 1.14.
- So, for high-quality heating of the house 200m² with a ceiling of 3.1 m, a boiler with a power of 200kW * 1,14 \u003d 22.8kW is useful.
- To accurately do not freeze, we recommend rounding the parameter to the biggest. Then get 23 kvt. We are suitable for 24 kW.
Note that this calculation is suitable for a single-mounted boiler. In the case, it is necessary to calculate what water temperature you want to receive in the cold, and select the technique in accordance with the parameter (+ 25%, power, if you like the carriage raging).
Step-by-step calculation of the capacity of the boiler (double-circuit) for apartments
The situation is somewhat different with apartments. Here the coefficient is less than in the house - there are no heat loss through the roof in the apartments (if it is not about the last floor) and losses across the floor (except for the first floor).
- if the apartment from above "warms" another room, the coefficient will be 0.7
- if your attic is on you - 1
To calculate the parameter, use the method described above, taking into account the coefficient.
Example:Apartment area 163m². Her ceilings are 2.9 m, the apartment is in our strip.
We determine the power of five steps:
- We divide the area to the coefficient: 163m² / 10m² \u003d 16.3 kW.
- Do not forget about the correction to the region: 16.3 kW * 1,2 \u003d 19.56 kW.
- Since the two-round boiler is designed for hot water, add 25% 7.56 kW * 1.25 \u003d 9.45 kW.
- And now you do not forget about the cold (experts advise add another 10%): 9.45 kW * 1,1 \u003d 24.45 kW.
- Rounded, and 25kvt comes out. It turns out, it will be suitable - a device that works on natural gas and interacts with solar collectors.
Note that in this way the capacity of the boilers occurs, on what kind of fuel they work - at least gas, even electricity, at least solid fuel. .
Step by step calculation of boiler power (single-mounted) for apartment
And what if you do not need a double-circuit boiler, and with tasks? We will make calculations, given another factor - the material of the house manufacturing. The heating rate established at the legislative level looks like this:
- Heating 1m³ in the panel house will require 41 watts.
- Heating 1m³ in a brick house will require 34 W.
We offer to familiarize yourself:
We remember the area of \u200b\u200bthe apartment, multiply it to the height of the ceilings, we get the volume. This indicator needs to multiply to normal - we obtain the power of the boiler.
Example:
- You live in an apartment with an area of \u200b\u200b120m², and the ceilings in it - 2.6m.
- Volume will be: 120m² * 2.6 m \u003d 192.4m³
- Multiply on the coefficient, we calculate the need for heat of 192.4m³ * 34W \u003d 106081W.
- We translate into kilowatts and rounded, we get 11kW. This is the power of the thermal single-circuit unit. Not bad option - model. A little "with a margin", the capacity of this technique with more than enough for a comfortable microclimate in your home.
As you can see, the task of selection of the boiler will not take more than an hour. Correctly choosing a heating device, you will be insufficient from uncomfortable cold for the whole winter, saving money for the purchase of boiler, utilities. It is true to calculate the parameter - it is equally important for all types of heaters: coal, on TT,