Frequently asked questions and answers | EKOSEN

Frequently asked questions and answers

1. Why are more and more people choosing IR heating?

  • Because we can save up to 65% of heating costs.

  • IR panels are affordable, the investment can be carried out step-by-step (equip your bathroom today, the living room tomorrow, etc.).

  • It prevents occurrence of mould and moisture.

  • It extends the life of the building.

  • Due to warmer surfaces of objects, it gives a more natural feeling of heat. 

  • It distributes heat evenly between the floor and ceiling and gives a feeling of floor heating.

  • IR heating panels do not have moving parts and therefore have a useful life that is three times longer than other heating systems.

  • They are an ecological product, since very little energy is consumed in production and recycling compared to conventional central heating systems.

  • No maintenance.

  • Management is easy.

  • There is no need for a boiler room and chimney.

  • Easy installation does not require any major work in the building.

  • The wonderful shape of the panels fits perfectly in the room.

  • Electricity (in the long term) is cheap, as it can be obtained from various sources.

  • In the event of an outage, the temperature in the room drops very slowly.

  • Temperature can be set in each room individually.

  • Saves time and worries.

  • Ideal heating for all generations.


2. Is the same amount of energy necessary for heating the same room to 22 °C, regardless of the source of heating?

Every individual understands something different under the term heating source: a heating device (convectors, radiators, hot air blowing, air conditioners), type of heating (central, local), energy (gas, solid fuels, electricity, etc.), or the mode of energy transfer (convection, conduction, radiation). 

What about the concept of ‘actual consumed energy’ and ‘theoretically consumed energy’? The answer to the question depends on the definition, and we provide an explanation for all of it.

We base our explanation on the foundation of the laws of nature. To change the temperature of any substance, we have to change the amount of heat of this substance. If substances are supplied with a certain amount of heat, the change in temperature depends on the properties of the substance and the amount of heat. Therefore, the source of heat received by the substance is not relevant, as the change in temperature will always be the same. However, if we are asked about the temperature in the space, the matter is much more complex, especially with regard to the influence of the source on the amount of energy transferred to this space. When we add an influence on the temperature increase and location of measurement, especially if we add a human variable that tells us when it’s warm, no matter what the thermostat says, the matter is even more complex.

Is there a change in the amount of energy required to increase the temperature of the same substance to a specific level? The answer is, no, it is not. Does the actual energy used change if we change the mode (source) of energy supply to a room where a thermostat deactivates heating? Of course.

We have to consider the relationship between bodies receiving heat and the place where we measure the temperature that will deactivate the source of heating. Let’s take, for example, a 100 kg ball that is heated from the inside or from the outside. The ball is in a room in which we want to have a temperature of 21 °C. The thermostat deactivates heating when the air is at 21 °C. In this room, we first set up an IR radiant that heats the surface of the ball and the room, and then place the heating element in the centre of the ball. We measure energy consumption and observe events throughout an ordinary year. It quickly becomes clear that the system with the heating body in the centre of the sphere will have a much higher energy consumption, that the room will often overheat, and that the temperature control will be quite difficult because the heater must first heat the whole mass of the ball and can only then heat the room – and often overheats it. In the first case, the room and the surface of the ball will be quickly warmed to just the right temperature. Also, there is no need to heat the whole ball but only the surface, and it will be equally warm to us. In heating, it is only important that the surfaces have a temperature where the heat flow is ideal, that is, at an average temperature of 21 °C, which includes everything around us, both air and objects. Therefore, in winter, the air must be hotter when using ordinary heating so that it does not get cold, and the heat can be felt if the walls are warmer in the summer at 21 °C. So the thermal needs of the rooms did not change, only the manner of energy supply changed, and that has changed everything. This, of course, is an extreme example, which only shows that we must always take into account the actual state, and not only the calculation of thermal losses and then replace them in any way we can.

Similar differences, although smaller, occur when comparing IR heating and conventional convection heating. Let’s ask ourselves what heats the hot air, how much air temperature affects the ventilation and other heat losses, what heats the IR panel and the amount of ventilation and heat losses. We can see significant differences right away. Different mass, different quantity of mass, different temperatures in different parts of the room, and, ultimately, different energy consumption with the same thermostat, which deactivates heating at the same temperature. Measurable differences in energy consumption are created if we fix the panel to the ceiling or a wall.

Take, for example, a 2 kW iron and place it on the outside wall in the middle of winter, or a 2 kW radiator or IR panel. Will it produce the same warmth? IR panels also effectively heat the rooms differently depending on whether they are on the wall or on the ceiling. Why? Why don’t high-temperature IR heaters heat the same rooms as effectively as low-temperature ones? So the mode of energy transfer affects actual consumption.

What about energy sources? Let’s ask ourselves: are there differences using the same heating system and the same efficiency of the energy source? Of course there aren’t. But if we change only the radiator location in this system, there will be changes in energy consumption. However, there are always differences in the energy efficiency of the energy product itself. Take fresh and dried wood, and the matter will be obvious. So we can’t even compare the same energy product to one another. What about a stove and the location of the stove? Does it matter if the stove is located in the building or 500 metres away? And also where the pipes are routed? Make no mistake, a heat pump can be a more expensive solution than oil if its location is 500 metres away from the heated object.

Local or central heating? Central heating is a very wasteful solution, especially during transition periods due to system losses and non-responsiveness. The impact also depends on your lifestyle. Once again, there is no comparison.

So, in theory, we always use the same amount of energy to raise the temperature of the same substance by a specific amount. However, how we do it and where the energy goes very much affects the amount of energy we actually use to raise the temperature in the room. In practice, it is not possible to compare even identical energy products, let alone different heating systems from the point of view of energy consumption. This is also demonstrated by the fact that IR heating systems consume on average 60% less electricity than central systems and about 30% less than local electrical systems. When comparing thermal comfort, the differences are even larger.


3. Is IR heating really the most economical?

Yes, IR heating is almost always the most economical heating – the savings can be exceptional. If you are currently heating using electricity with ordinary radiators, using oil or liquefied gas, or have an old stove using natural gas or wood, and do not use all living areas, then you can halve your annual heating bill –demonstrable savings reach up to 70% of previous spending for heating. If you are buying a new building, your savings can be even higher, as you can save 70% of your heating investment and all the maintenance costs of other systems. All this is a computable fact if we look at the total cost of heating systems that include maintenance, consumption, useful life and investment.


4. How do I calculate estimated consumption?

The SUNLIFE IR panel is on average activated only 4 to 6 hours per day, if the size and the location are appropriate.

Example: for an apartment of 60 m2, you need heating power of approximately 4 kW when using IR panels SUNLIFE. In this case, the consumption calculation is as follows: 4 kW x 0.12 €/kWh x 5 hours/day x 180 days = €432 per year. If you want additional savings per year, we recommend you choose a cheaper electricity provider.


5. What makes them so effective if they operate using electricity?

Consumers often wonder if these claims are false, since kilowatts of electricity are more expensive than kilowatts of other energy products. However, the different type of heat transfer results in completely different dynamics of heat transfer and smaller losses, and consequently fewer activations of the IR heating unit. This is a fact that becomes apparent to all users around the world. Scientific studies have also proven greater efficiency of IR heating in the replacement of heat losses. It is impossible to briefly describe all the reasons, because it is a complex situation. However, we can summarise the main causes:

  • Electricity is converted to heat for space heating with an almost 100% efficiency. Consequently, there are no losses through the chimney and pipes.

  • Less losses occur with ventilation, as more heat is stored in objects than in the air, so this energy is lost more slowly when the rooms are ventilated.

  • Because of its location, the system is extremely responsive, which becomes apparent primarily during transition periods or when the rooms are only used occasionally.

  • Increased insulation effect due to wall drying. Fact is that damp walls in some cases reduce the effect of insulation by up to 50%.

  • Each room is individually controlled and in each room the system consumes only as much energy as is needed. Each room also gets as much energy as it needs, without losses.

  • When the thermostat shows a specific temperature, for example, 21 °C, surrounding objects also have about the same temperature. So we feel real warmth because we no longer have cold walls that would drain heat from our body, as heat always moves from warm to cold. Therefore, there is no need to raise the temperature on the thermostat to make it pleasantly warm.


6. What are the effects on health?

SUNLIFE IR heating undoubtedly reduces the amount of dust and microorganisms in the air because it reduces the air circulation that naturally occurs when using ordinary radiators – traditional convection heating. Positive effects are therefore often reflected in the reduction of allergies and respiratory diseases, and users also report a general improvement of wellbeing. Serious studies also show the positive effects of IR heat on cell activity.

Furthermore, IR heat is emitted in the same form by everything in your surroundings, as well as you. Rub your palms and bring them close together. That is IR heat, the same as the heat emitted by SUNLIFE heating panels. According to scientific literature, IR heating has an overwhelmingly positive effect on our cells (that receive IR heat). There are also officially recognised and used therapies with IR heat. IR heating is also used in incubators, but it involves larger amounts of IR heat. In fact, using normal dimensions of SUNLIFE IR heating panels, an individual receives a negligible amount (if at all) of IR heat, which is almost no different from the amount received from the environment. Therefore, such heating is not intended as a therapeutic device, but primarily as an efficient heating body.


7. Who guarantees that there are no harmful effects and where is the evidence of positive effects?

You can find links to articles on IR heat and its effects on the organism on our website at The International Commission on Non-Ionising Radiation Protection (ICNIRP) states that long-lasting thermal waves do not represent any practical cause for concerns regarding health impacts (

Measurements were also carried out by the INIS Institute for non-ionising radiation. INIS is an independent and non-governmental organisation conducting research and development in an interdisciplinary field of non-ionising electromagnetic radiation. Within the framework of INIS, there is a team trained in the most demanding research and development tasks in the field of technical, administrative, legal and health control of non-ionising radiation. Learn more about tests at

Based on serious scientific studies and official opinions, everyone can understand that IR heat has almost universally positive effects, which we do not emphasise as we primarily sell economical and efficient heating, while leaving treatments and possible therapies to medicine.


8. Do Sunlife IR heating panels provide sufficient heating?

Yes. We can argue with certainty that IR heating achieves more favourable temperatures in the room, using less energy than convection heating. Most people believe that the feeling of heat depends on the heat of the air, which is incorrect, because thermal comfort depends on a number of factors, among which the main ones are average ambient temperature and presence of wind. Example: skiers and mountain climbers do not freeze even when surrounded by cold, freezing air. The reason for this is that they are surrounded by thermal IR waves originating directly from the sun (solar heat) and the environment that is capable of effectively reflecting these rays (snow, stone, earth, etc.). We can say with certainty that IR heating creates perfect thermal comfort, i.e. proper air and ambient temperature, regardless of the complexity of the situation.


9. Is it cold under the table?

It is by no means cold under the table, because infrared heat is reflected by all objects and indirectly warms up the whole space, which is confirmed by all users of IR heating. We all know that it is cold under the table when convection heating is used, as the warm air rises to the ceiling and remains cold at the floor. With IR heating, the heat is evenly distributed throughout the room. It’s just a little warmer under the heating panel.


10. Is the EKOSEN heating panel system different from other IR heating systems?

Yes, sometimes significantly. There are several types and manufacturers of IR heating elements. These differ in design, technology and quality, resulting in different useful life, safety, purpose of use and efficiency of products. Sellers often refer to exotic novelties, which are usually only theoretical improvements of already known solutions, while neglecting the basics: useful life, testing and appearance. IR heating panels were the first Slovenian IR heating brand to be created in collaboration with leading global manufacturers of IR heating panels, with a growing number of satisfied customers in the last six years. The products justifiably come with the longest warranty in Europe and a number of recommendations from satisfied customers. If a customer only wants a basic IR heating model, IR heating panels of the SUNLIFE brand are available.


11. What is the investment in EKOSEN IR heating system?

The range of the prices is quite wide. The price depends on several factors: the size of the rooms, the heat losses, the number of IR panels and regulators, the price range of IR panels. The investment in Ekosen's heating system is somewhere in between 25 and 55 EUR / m². Since this is a long-term investment, to ensure optimal calculations and high quality service we offer you a free tour of the building.


12. Why is convection heating not the best choice?

Dehumidified air causes dust rise, heat is unevenly distributed in the room (heat under the ceiling), etc. Heating systems mostly operate on the principle of air circulation. Heated air rises and cooler air descends, causing natural air circulation. In a room heated in this way, air temperature is higher, loss of air humidity is higher, and, additionally, dust is being lifted.

All of this can cause a dry and polluted atmosphere in the room, which has a negative impact on our health and wellbeing. Because of thermal differences between floors and ceilings, sometimes up to 10 °C, many people have a constant feeling of cold feet.

An inappropriate way to mitigate the negative consequences is to use a fan. Not only does a fan cause increased dust in the air and reduced air humidity, high temperature of the device can partially change regular domestic dust into soot, which is then distributed throughout the room.


13. Why is efficiency increased if Sunlife IR panels are installed on the ceiling as opposed to a wall?

In practice, this is not always the case. That is why an IR-heating specialist should view and provide advice regarding the ideal layout of IR panels. Distance between opposing walls is usually longer than 3 metres, while the distance between the ceiling and the floor is almost always about 2.5 metres. As outer walls often have a larger heat flow than the floor, infrared heat accumulates on the ground with less losses. Even if the panel is on the ceiling, this does not mean that all energy goes into the floor. The heat is spread throughout the room in the same way as light when a lamp is turned on. It is absorbed by objects and walls in such a way that the temperature is as even as possible. Finally, the entire space acts as a low-temperature radiator.

In some cases, it is more economical to install panels on walls. This is primarily the case in stairwells, corridors or as decoration in a living room. When IR panels are installed on walls, heating costs may be higher, or there might not be any noticeable differences if the appropriate layout is selected. Therefore, we recommend you consult an IR-heating specialist before making a decision.


14. How does power consumption of IR panels fluctuate?/strong>

Let’s examine fluctuations in consumption for heating a 150 m2 house with moderate insulation.

Savings over the transitional period are higher than in the main season. If, for example, consumption is €195 in January, then we should not multiply by 6 months. We need to consider factors between 3, 6 and 4. If we take into account the wrong factor (6), spending would be €1170 per year. In practice, the annual consumption is €807. Years ago, tests showed that savings in IR heating during the transition period are approximately 60%, or as high as 70% in Slovenia. During the main season, savings reach 30%, and about 35% in Slovenia. On average, savings in IR heating are between 50% and 60%. Research was carried out at Technical University Kaiserslautern (Germany) and can be viewed at

Furthermore, we must consider that power consumption during winter is €10 to €20 higher because lights are turned on for longer periods of time, we spend more time using a computer, watch more TV, and even cook more.


15. Do you install the panels?

The standards we set up at Ekosen ensure quality services at all stages of our operations. Ekosen’s references in Slovenia are far ahead of the competition. Ekosen provides comprehensive services, from expert advice to sales and quality installation throughout Slovenia. Installation is carried out by professionally trained electrician installers, using the best tools and fitting materials. By doing so, the customer will avoid unnecessary stress during the installation. Our installers leave behind a well-arranged environment and restore the facility to its original state (they also carry out the puttying). The warranty for the best IR heating panels are 15 years.


16. Can IR panels heat up water?

No. One possible solution is on OGB SMART water heater by Gorenje, which is very economical and has good insulation. For four family members, an 80-litre, 100-litre or 120litre water heater is sufficient. This will give you the best benefit for the lowest investments. In practice, power consumption for a family of four is between €8 and €10 per month. Another solution is an on-demand water heater, if you have a 3-phase electric current. On-demand water heaters are very popular in Germany and the UK. In any case, we can provide a comprehensive solution, including water heating. In many cases, a heat pump for water heating is not the best choice (except for really large consumers), because certain retailers fail to explain a few specifics.


17. Do I need a boiler room?

An IR heating system does not require any additional space, as the panels are mounted on the ceiling or wall. So there is no need for a boiler room and a fuel tank. Furthermore, there is also no need for a pipe system, radiators or a chimney.

Costs for the cellar are high. So if you already have a cellar, you can rearrange it into a room for wellbeing, relaxation or recreation. Install more panels in such a room and turn it into a hot wellness room with a sauna and recreation. This will result in less joint damage and a strengthened immune system. An example of such a room can be found at and


18. Why do you offer THERMOSUN energy-saving paint together with Sunlife IR panels?

Because they complement each other perfectly. THERMOSUN is a special thermo-ceramic coating (paint) – a top-of-the-line product in terms of quality. It is designed to take make natural IR heat more efficient, thus achieving even better results in IR heating, and vice versa. Thermal comfort improves considerably with the help of this paint, and the unpleasant sensation of cold walls becomes a thing of the past. Therefore, you do not need to increase the temperature on the thermostat, and your heating costs are immediately decreased.


19. How can I purchase your products?

It is simple. Contact an authorised representative for SUNLIFE heating systems. Their specialists will schedule a meeting provide basic information. You can also arrange a meeting at the showroom in Mengeš near Ljubljana or Miklavž na Dravskem polju near Maribor. After you check our products and decide on the purchase, you can make arrangements for the installation. The installation is usually completed within one to two days in average residential facilities.


20. What is your warranty?

The warranty depends on the product. For our best product, IR heating panel Sunlife, we offer the 15 years warranty.