Before you decide to install such a heating system in your home, fully calculate the benefits of using it in comparison with alternative heating options. Next, we will consider how to calculate the electricity consumption of a warm floor yourself and tell you how much the film coating, thermomat, heating cable consume.

Heating element power

The main ones are film (infrared), thermomat and heating cable. As for the film coating, it is customary to use it when laying the system under laminate and linoleum, mats and cables are used for heating ceramic tiles. Each of the listed heating elements has its own characteristics: power, thickness, heating temperature, etc. Now we will consider how much electricity each type of heated floor consumes.

So, the energy consumption of heating elements is as follows:

• film coating - from 150 to 400 W / m 2;
• heating cable - from 10 to 60 W / meter (30 W on average). Usually, about 5 turns of material are laid on 1 square meter of the surface, so that the total power is 120-150 W / m 2;
• thermomat - from 120 to 200 W / m 2 (the average consumption is taken according to the characteristics of DEVI and TEPLOLUX).

As you can see, the power of an electric underfloor heating is on average from 120 to 200 W / m 2, which makes it possible to make a system both for complete heating of the room and for an auxiliary one.

Video review of how much the heating system consumes

Cost calculation technology

To independently determine how much energy an electric warm floor takes, you must use the following formula:

W = S * P * 0.4,

• S is the area of ​​the room;
• P is the power of the system;
• 0.4 is a coefficient that takes into account how much of the floor surface in the room is covered with cable / film. In other words, 0.4 * S is the useful heating area.

W = 25 * 150 * 0.4 = 1500 W, which means consumption of 1.5 kW per hour.

Hourly consumption is known, but that's not all. Typically, the heating system works 8-9 hours a day when all residents are at home. In total, electricity costs per day will be approximately 12-13.5 kilowatts. Simple calculations can determine that the monthly consumption of a warm floor will be about 360-400 kW.

We immediately draw your attention to the fact that these calculations are very rough and, as a rule, the actual consumption is 2 times less. This is due to the fact that you can additionally use thermostats, which reduce energy consumption by another 40%. In total, the system will consume not 360 kW per month, but 216, besides, we have chosen a power of 150 W as an example, and you can use a cable with a characteristic of 90-120 W / m 2, which may also be enough in individual conditions!

The last thing you have to do is to multiply the power that the system consumes per month by the cost of one kilowatt of energy in your city. In total, you get the finished energy consumption of the system, on the basis of which you can analyze whether such heating is beneficial or not. As you can see, the calculation formula is pretty simple. Using this technology, you can easily calculate the energy consumption of a warm floor in any room: bedroom, kitchen, bathroom and even on the balcony, the main thing is to have a calculator at hand!

I would also like to note that for heating a house with infrared film material, the calculation of electricity consumption is made taking into account that about 60 watts of material power is needed per 1 square meter of unheated room. For a heated room, this value is reduced to 20-30 W. This is due to the fact that the film has a high efficiency and low power consumption, which is, in principle, any type!

How you can reduce costs

Above, you saw how much electricity the warm floor consumes. If you make a calculation for all rooms, you will get a decent amount "for light" at the end of the month. Of course, when you pay for the first receipt, you will think about how you can reduce consumption and make the heating system economical.