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How to calculate the heating batteries of your own apartment?

Calculation of the number of sections of heating radiators

Heating radiators are the most common heating device that is installed in residential, public and industrial premises. It is hollow inside elements filled with coolant. Through them, thermal energy enters the room to heat it. When choosing radiators, it is necessary first of all to pay attention to two technical indicators. This is the power of the device and the coolant pressure it can withstand. But in order to finally determine the temperature regime of the room, it is necessary to carry out an accurate calculation of heating radiators.

This includes not only the number of devices themselves and their sections, but also the material from which they are made. The modern market for heating equipment offers a huge range of batteries with different technical characteristics. The main thing you need to know is the capabilities of one section of the battery, namely, its ability to release the maximum amount of thermal energy. This indicator will form the basis of the ongoing.

Let's carry out the calculation

Knowing that 100 watts of heat is needed per 1 square meter of a room, it is easy to calculate the number of required radiators. Therefore, first you need to accurately determine the area of \u200b\u200bthe room where the batteries will be installed.

Be sure to take into account the height of the ceilings, as well as the number of doors and windows - after all, these are openings through which heat escapes the fastest. Therefore, the material from which doors and windows are made is also taken into account.

Now the lowest temperature in your region and the coolant temperature at the same time are determined. All the nuances are calculated using the coefficients that are listed in the SNiP. Given these coefficients, the heating power can also be calculated.

A quick calculation is made by simply multiplying the floor area by 100 watts. But it won't be accurate. Coefficients are used for correction.

Power correction factors

There are two of them: decrease and increase.

Power reduction factors are applied as follows:

If plastic multi-chamber double-glazed windows are installed on the windows, then the indicator is multiplied by 0.2.
If the ceiling height is less than the standard (3 m), then a reduction factor is applied. It is defined as the ratio of the actual height to the standard. Example - the ceiling height is 2.7 m. This means that the coefficient is calculated by the formula: 2.7 / 3 \u003d 0.9.
If the heating boiler operates with increased power, then every 10 degrees of heat energy generated by it reduces the power of heating radiators by 15%.

Power increase factors are taken into account in the following situations:

If the ceiling height is higher than the standard size, then the coefficient is calculated using the same formula.
If the apartment is a corner apartment, then a factor of 1.8 is applied to increase the power of the heating devices.
If the radiators have a bottom connection, then 8% is added to the calculated value.
If the heating boiler lowers the temperature of the coolant on the coldest days, then for every 10 degrees of decrease, an increase in battery power by 17% is necessary.
If sometimes the temperature outside reaches critical levels, then you will have to increase the heating power by 2 times.

Determine the number of sections of one radiator

Equipment sections

Experts offer several options for calculating the number of heating radiators and their sections.

The first is the so-called ordinary method. He is the simplest. Usually, the technical parameters are set in the passport or quality certificate, which is issued as an accompanying document for each product. Here you can find information about how much power one section of heating radiators has.

For example, it is equal to 200 watts. The power required to heat the room is calculated, taking into account the step-down and step-up factors. Let's assume that it is equal to 2400 watts.

Now purely mathematical calculations are made: 2400/200 = 12. This is the number of sections that need to be installed in this room. One 12 cell battery or two 6 cell batteries can be used.

The second option - the calculation is made taking into account the heating capacity of one section for a certain amount of space. To do this, the total volume of the room is calculated and divided by the volume heating index of the section.

Coloring of heating equipment

The third is an approximate calculation used by the masters, based on their personal experience. All heating batteries have almost the same dimensions. There are differences, but minor ones. So it was noticed that with a ceiling height of 2.7 meters, one section can heat an area equal to 1.8 square meters.

For example, a room has an area of 25 m2. We carry out the calculation: 25 / 1.8 = 13.8. That is, 14 sections will need to be installed.

As you can see, it is not so difficult to calculate heating batteries. Here it is important to take into account all the parameters that affect the system itself. True, sometimes it is difficult to do this.

Therefore, advice: involve professionals in this process - after all, a small mistake or a minimal flaw can lead to an undesirable situation. You will simply not be comfortable in an apartment or house in winter - when the air temperature does not reach room temperature.