In the past, we have dealt with the undeniable advantages and benefits of heating-cooling radiant systems in several articles. If you are interested in the general advantages of systems, read hereif you have a reconstruction of the house in front of you and are thinking about alternatives to heating and cooling your house, thisarticle, for example, can broaden your horizons. Heating-cooling radiant systems are the most efficient way of transferring heat. This is also why they are an ideal choice for energy-efficient buildings. In the following we will focus on system performance in relation to materials from which they can be installed.

Ceiling radiant systems can be purchased in several material variants. Material variants, or heat exchange surfaces, which serve as a heat exchanger in your interior (radiate heat or cold), have different performance properties and thermal conductivity due to their differentness. Before you start choosing a heating-cooling system, consider which material will be the most advantageous investment. For comparison, we have selected the most common ones that customers buy from us. It is a system made of plastic, copper and aluminum or a carbon (carbon) system. In addition to the common advantages of all, such as the invisibility of systems in the interior and comfortable functionality without any noise, they have different material properties, which we will focus on below.

Systemically, it is a plastic pipe in combination with a plasterboard. The cold/heat distribution pipe is either built-in or installed above the SDK plate. The system is designed for dry construction system with quick installation and is especially suitable for renovations. However, the disadvantage of the system is plastic pipes with problematic system life. This material is limited and temperature dependent. Usually the plastics from which ceiling exchangers are made do not have an oxygen barrier, so the systems are aeration and the metal parts in the hydraulic system corrode. Thus, the whole system must be separated by a heat exchanger, on which there are huge power losses, and the source must produce an even higher temperature for heating and an even lower temperature for cooling.

The system, which consists of an aluminum-copper structure hidden above the plasterboard ceiling, is suitable for any architectural solutions. It can also be used to create sleepless floor-to-ceiling or island ceilings. Thanks to the fact that we design the system tailored for a specific room, there is no problem with the installation of built-in ceiling components. We also combine the system with special plasterboards with increased thermal conductivity and the possibility of noise absorption. Thanks to its consisting of plasterboards and metal construction, this system guarantees better performance and thermal conductivity than a system with a plastic exchanger.

This advanced system for floor-to-ceiling ceilings takes advantage of the metal system described above and pushes the limits of performance even further. The advantage is its structural lightness combined with high performance and excellent acoustic properties. In this case, the ceiling ceiling is composed of a carbon plate, with a built-in copper pipe for heat and cold distribution. However, the fundamental difference from the system with the plastic exchanger is here in the wiring material. Copper pipes have a long service life and great conductivity, which is also supported by the great properties of the carbon plate.

If we would like to quantify the material characteristics of the system, we can briefly mention the performance and conductivity of the materials in the units in which these quantities are stated. The performance of the ceiling system, i.e. how it is able to transfer heat, is measured in Watts per m² (W/m²) and thermal conductivity in Watts per meter and kelvin. (W/mK)

In the table we can see that plastic has the least suitable properties of all materials for heat-change areas. Its performance is up to 60% smaller than the carbon exchanger system, which has copper pipes. Thermal conductivity (again compared to the carbon system) does not even reach 0.06% thermal conductivity of copper.

Surely you have experienced daily arguments in the workplace about opening and closing windows in a room where both sexes work. In short, women perceive temperatures differently from men, and there are several explanations why men and women feel comfortable at different temperatures.

A study conducted by two Dutch scientists offered an answer to a question that many employees and employers are still looking for an answer to. Why, in summer temperatures, when men vehemently turn on air conditioning units, do women immediately reach for a sweater? According to the study, women feel the cold faster and are more sensitive to it. This is also because the thermal sensors found in the skin are more sensitive to the female body. A sample conducted by the researchers suggests that women are well at 25°C and men at 24°C.

The result is also related to the speed of female and male metabolism. It is responsible for the production of energy, including heat. On average, women have a lower metabolic rate than men. An important factor is body weight. Because men have a higher proportion of body mass than women, the male body is more easily able to generate heat, making men less sensitive to colder air than the opposite sex. In the summer months, men have a lower tolerance to hot weather, since their body produces more, metabolism heats up and accelerates.

Since air conditioning units are already the standard in most jobs and buildings, the problem is again how to set the air conditioner so that the air temperature suits everyone. In the article, we described that we are unlikely to reach the temperature suitable for everyone very easily. For some, the air conditioning will blow less, on the other more, and the cycle continues. In Geocore, customers with a similar problem are usually advised to use a system of comfortable end elements – so-called heating-cooling ceiling structures. This system does not heat the air but radiates to objects and persons in the room, and unlike standard air conditioning, it does not work with unpleasant air blowing, which reduces comfort and can cause health problems.

The surface temperature of the ceiling is 18°C, which is an acceptable temperature difference for the body due to the desired room temperature of 26°C (when cooling). For radiant ceilings, this parameter is best compared to other cooling systems, which is why this system is most comfortable. The economic advantage is also that the end element serves both heating and cooling. Other pluses are predictive regulation, which saves time and money in the transition period, i.e. spring and autumn, and last but not least, the possibility of individual regulation using your smartphone. You can read more about the system here.

The hottest season of the year is here and with it the problems associated with air conditioning, which 'make' our hot working days more enjoyable. Have you ever encountered coming home from work after a busy day and having a cold the next day? In a summer where everyone would think it's almost impossible to get a cold? This summer cold usually comes from the sharply cooled office space in which we move. We have given you some explanations as to why this is the case and how to avoid it.

You probably always thought that the heat was rising and the cold was falling down. But the claim is not entirely correct. It is more correct to say that warm air rises upwards and cool air falls down. We'll explain it in a simple example. If we imagine a hot air balloon, we realize very quickly how the mechanism works. Warm air is steered into the sail, which immediately begins to lift the shell and float it. If we stop heating the air, the shell will begin to sink to the ground. This is a natural and immutable mechanism that works and is verified.

Let us now translate the like-up we used in our example to something we all know well. We spend our working day in a classic openpac, and from above the air conditioning blows on us, when the sharply cooled air falls directly to the ground (from there we know such an unpleasant phenomenon for ladies, cold from the feet). Now imagine that you are in a wine cellar, where you are pleasantly cooled by the cooled walls in the space. What's more pleasant? Air conditioning blowing or cooler radiation in the cellar? I'm sure we can all agree that B). On this principle, radiant cooling systems work, the bodies of which cool down and then radiate the cold evenly into the space and without temperature shocks.

Do you think if you turn on the air conditioning in the summer, in a room where it's hot, you'll feel better? Yes, if you let the classic air conditioning blow on you all day, you will feel colder, but it is very likely that after such a day at work, you can just lie down in bed with tea for a week. The healthiest and most natural way of cooling in this case is natural flow, which can be achieved with radiant technology that works with smaller temperature differences than conventional air conditioning.

Air conditioning cools the air with water, which has a very low temperature (6°C) compared to outdoor air, causing us to feel unassuged in air-conditioned areas, we have a cold and such sharply cooled dry air does not allow us to breathe comfortably. Radiant technology works with water at a significantly higher temperature (18°C) and is thus closer to summer temperatures. Thanks to the fact that the temperature shocks for the body are not so great, then we can then function all day without having a cold and breathing dry air all day.

Comfortable, quiet, economical, gentle... Words you probably hear a lot from clients. Increasing demands on environmental well-being, i.e. thermal comfort of people, are an increasingly common topic in society. Whether it is the design of a family house or office space, thermal comfort is obvious and hygienic aspects are the one that will surely interest your clients. Side effects? Noise and frequent diseases caused by drafts and swirls of dust? Both can influence the choice of heating-cooling system, which allows the adjustment of thermal comfort at low energy consumption. Of course, the emphasis is also on the appearance and unpretentiousness of maintenance. How to achieve such requirements?

The most common radiant cooling systems are cooling ceilings, which are given the most attention. And not in vain. The advantage of the system is its invisibility in the interior, high performance and comfortable functionality without any noise. Our systems replace any other unsightly heating or cooling units and rank among the very gentle, quiet and free-flowing cooling. For example, Carbon S boards with built-in copper heating-cooling equipment form a ceiling area and can be used to create sleepless floor-to-ceiling or island areas.

How is the system economically advantageous? From the point of view of thermal comfort, the system is economical mainly due to the fact that it works with the temperature that is most close to the temperature in the room and the power is thus distributed in the ceiling area and transmitted by radiation. Radiation is a physical process in which a substance emits energy into space in the form of electromagnetic radiation. It is precisely in conjunction with maintaining a lower air temperature that the systems are undeniably gentle. The reason for this is the low-potential effect, which is that it is not necessary to heat the water, which is usually driven into conventional radiators, to 60°C, but half the water temperature is enough to heat the room. The systems are especially suitable in combination with geothermia, where additional funds for operation can be saved.

As a rule, the disadvantage of the system is higher acquisition costs. On the other hand, the cost of replacing filters for conventional systems, for example, is falling away, and the unit is very comfortable precisely because it has one element that heats and cools. At the same time, the system is up to 60% lighter, achieves 35-50% higher performance, and the system response is 10 times faster (1-2 minutes). It is not possible to say unequivocally what the return is, since, as you know, each project has its own specifics according to which these figures are estimated. We will be happy to help you calculate these numbers and advise what system would be suitable for your project. Contact us and get advice from specialists.