Method of calculation sections radiators

when installing or replacing radiators usually raises the question: how to calculate the number of sections of the radiator to the apartment was cozy and warm even in the coldest time of the year?Make the calculation yourself quite easy, just need to know the parameters of space and power battery type selected.To the corner rooms and rooms with ceilings higher than 3 meters or panoramic windows, the calculation is slightly different.Consider all the methods of calculation.

rooms with standard height ceilings

Calculating the number of sections radiators for a typical home is conducted based on the size of rooms.The area of ​​the room in the house of typical building is calculated by multiplying the length of the room in its width.For heating one square meter requires 100 watts of power the heater, and to calculate the total power necessary to multiply the resulting area of ​​100 watts.The resulting value is the total capacity of the heater.The documentation on the heat sink is usually available thermal capacity of one section.To determine the number of sections, it is necessary to divide the total capacity on this value and round the result in a big way.

Calculation example:

room with a width of 3.5 meters and a length of 4 meters, with normal ceiling heights.The capacity of one section of the radiator - 160 watts.It is necessary to find a number of sections.

1. Determine the area of ​​the room by multiplying the length by its width: 3.5 x 4 = 14 m2.
2. find the total wattage heaters 14 * 100 = 1400 watts.
3. find the number of sections: 1400/160 = 8.75.Rounded to the higher value and obtain the 9 sections.

You can also use the table:

For rooms, located on side of the building, the estimated amount of the radiators should be increased by 20% ..

rooms with a ceiling height of more than 3 meters

Calculating the number of sections of the heaters for the rooms with a ceiling height of more than three meters is from the volume of the space.Size - this area multiplied by the height of the ceiling.For heating of 1 cubic meter of space required 40 watts of thermal power of the heater and its overall capacity is calculated by multiplying the volume of the room is 40 watts.To determine the number of sections, this value is divided by the power of one section of the passport.

Example calculation:

room with a width of 3.5 meters and a length of 4 meters, with a height of 3.5 m ceilings power a radiator section - 160 watts..It is necessary to find the number of sections of the radiators.

1. find the area of ​​the room by multiplying the length by its width: 3.5 x 4 = 14 m2.
2. find the volume of the room by multiplying the area and ceiling height: 14 · 3.5 = 49 m3.
3. find common radiator power: 49 · 40 = 1960 watts.
4. find the number of sections: 1960/160 = 12.25.We rounded up and obtain 13 sections.

You can also use the table:

As in the previous case, in the corner of the room, this figure should be multiplied by 1.2.It is also necessary to increase the number of sections in the case, if the room has one of the following factors:

• is located in a panel or poorly insulated house;
• Located on the ground floor or top floor;
• has more than one window;
• Located next to unheated rooms.

In this case it is necessary to multiply by a factor of 1.1 the value obtained for each of the factors.

Calculation example:

Corner room with a width of 3.5 meters and a length of 4 meters, with a ceiling height of 3.5 m is located in a panel building, on the ground floor, has two windows..The capacity of one section of the radiator - 160 watts.It is necessary to find the number of sections of the radiators.

1. find the area of ​​the room by multiplying the length by its width: 3.5 x 4 = 14 m2.
2. find the volume of the room by multiplying the area and ceiling height: 14 · 3.5 = 49 m3.
3. find common radiator power: 49 · 40 = 1960 watts.
4. find the number of sections: 1960/160 = 12.25.We rounded up and obtain 13 sections.
5. Multiply the resulting number by the factors:

Corner Room - coefficient 1.2;

Panel house - coefficient 1.1;

Two windows - coefficient 1.1;

First floor - a coefficient of 1.1.

Thus, we obtain: 13 · 1.2 × 1.1 × 1.1 × 1.1 = 20.76 sections.Rounding them up to a greater whole number - 21 section radiators.

the calculations should be understood that various types of radiators have different heat output.When choosing the number of radiator sections must be used exactly the values ​​that correspond to the selected battery type.

To heat from the radiators was the maximum, you must install them in accordance with the manufacturer's recommendations, following all the stipulated distance in the passport.This contributes to a better flow distribution and reduces convective heat losses.