How to calculate frigorías per m2. The definitive way – Discover and renovate with GroupSumi

How to calculate frigorías per m2. The definitive way

3 minutes of reading

By GroupSumi

April 11, 2023

Frigorías are a measure of the amount of energy needed to cool a space. It is important to calculate the necessary frigorías to select the appropriate air conditioning equipment and avoid unnecessary energy consumption.

Whether we are considering the purchase of a new air conditioner or if we have doubts about whether our current one will have enough power, we help you calculate the frigorías per square meter.

Formula to calculate the necessary frigorías per m2

The formula to calculate the necessary frigorías per square meter is as follows:

Chill hours = room area in square meters x insulation coefficient x temperature difference between the inside and the outside.

We know that this formula can be somewhat cumbersome, so if you do not wish to perform the calculation, we provide you with some estimates:

10-20 m2: 2,000 to 3,000 frigorías
20-30 m2: 3,000 to 4,000 frigorías
30-40 m2: 4,000 to 5,000 frigorías
40-50 m2: 5,000 to 6,000 frigorías
50-60 m2: 6,000 to 7,000 frigorías
60-70 m2: 7,000 to 8,000 frigorías
70-80 m2: 8,000 to 9,000 frigorías
80-90 m2: 9,000 to 10,000 frigorías
90-100 m2: 10,000 to 11,000 frigorías

Once the doubt about how many frigorías are needed per x square meters is cleared up, we will be able to know for sure what we need to buy.

Factors that influence the calculation of frigorías

However, despite having made the necessary calculations, we must take into account some of the factors that influence the calculation of the required frigorías are:

The geographical area where the space to be air-conditioned is located
The orientation of the room
The number of people who will occupy the space
The amount of electronic equipment that will be used in the room
The amount of natural light that enters the room

That is why if we have some of them, we should consider choosing a little more frigorías, so that we can ensure optimal air conditioning at all times.

When you think about how many frigorías you will need to climatize the square meters you want, you should consider different questions. In this article, we will clarify them all for you! ⬇️

Variables to consider in the calculation of frigorías per m2

Area to be air-conditioned

The area to be air-conditioned is one of the most important factors to consider in the calculation of cooling capacity. To calculate the area of the room, you must measure the length and width of the room and multiply them together.

Height of the room

The height of the room is also a factor to consider in calculating the necessary frigorías. To measure the height of the room, you should measure the distance from the floor to the ceiling.

Practical example of calculating frigorías per m2

Calculation of frigorías for a standard room

For a practical example, let's consider a standard room that is 4 meters long, 3 meters wide, and 2.5 meters high in Madrid, Spain. Let's assume the outside temperature is 35°C and the desired indoor temperature is 22°C.

Room area = 4 m x 3 m = 12 m²
Insulation coefficient = 40
Temperature difference = 35°C – 22°C = 13°C
Chill hours = 12 m² x 40 x 13 = 6,240 chill hours

Tips for maintaining air conditioning equipment

Some tips for the maintenance of air conditioning equipment are:

Regularly clean the air filters to maintain good airflow and reduce energy consumption.
Periodically check the condition of the electrical components to detect possible failures and avoid major damage.
Conduct an annual review of the equipment by a professional to ensure its proper functioning and prevent breakdowns.

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