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Heat invisibly, save noticeably – live with Underfloor Heating
Underfloor heating is one of the most efficient and pleasant heating systems—and has been for centuries: The Romans already heated their homes using the so-called hypocaust, a precursor to modern surface heating systems. Today, the system functions much more advanced, but the principle remains: Heat is distributed evenly over large areas in the floor, rather than at specific points like with traditional radiators.
This creates a particularly comfortable indoor climate, without air turbulence or cold corners. Underfloor heating uses radiant heat, which acts directly on bodies and objects—similar to sunlight. They operate efficiently with low flow temperatures, saving energy and making them ideal for heat pumps.
As part of a surface heating system, underfloor heating can also be combined with wall or ceiling heating. This makes it a flexible solution for both new constructions and renovations.
Heat invisibly, save noticeably – live with Underfloor Heating
The underfloor heating is one of the most efficient and pleasant heating systems – and has been for centuries: Even the Romans heated their houses using the so-called hypocaust, a precursor to modern surface heating systems. Today, the system functions much more advanced, but the principle remains: Heat is distributed evenly over large areas in the floor, instead of at specific points like with traditional radiators.
This creates a particularly comfortable indoor climate, without air turbulence or cold corners. Underfloor heating uses radiant heat, which acts directly on bodies and objects – similar to sunlight. They operate efficiently with low flow temperatures, saving energy and making them ideal for heat pumps.
As part of a surface heating system, underfloor heating can also be combined with wall or ceiling heating. This makes it a flexible solution for both new constructions and renovations.
How does an underfloor heating work?
An underfloor heating is a so-called surface heating – this means that it distributes the heat evenly over the entire floor. There are two main systems: the water-based and the electric underfloor heating.
How does an underfloor heating work?
An underfloor heating is a so-called surface heating – this means that it distributes the heat evenly over the entire floor. There are two main systems: the water-based and the electric underfloor heating.
Electric Underfloor Heating
Electric systems use heating mats or films that are installed under the flooring and convert electricity into heat. These are outdated technologies, as their operation is very inefficient and usually also requires radiators, making them very costly. Therefore, there are no official subsidies for this form of heating.
Electric Underfloor Heating
Electric systems use heating mats or films that are installed under the flooring and convert electricity into heat. These are outdated technologies, as their operation is very inefficient and therefore very costly in the long run. As a result, there are no official subsidies for this form of heating.
How is an underfloor heating constructed?
An underfloor heating system consists of several layers that are optimally coordinated to ensure efficient heat distribution: Directly above the base plate, an insulation layer is first laid to prevent heat from being lost downward. This is followed by the installed heating pipes to distribute the heat evenly.
Above the heating pipes is a screed layer, which stabilizes the pipes and serves as a heat storage. Finally, the floor covering such as tiles, laminate, or vinyl is laid, which evenly releases the stored heat into the room.
How is an underfloor heating constructed?
An underfloor heating system consists of several layers that are optimally coordinated to ensure efficient heat distribution: Directly above the base plate, an insulation layer is first laid to prevent heat from being lost downward. This is followed by the installed heating pipes to distribute the heat evenly.
Above the heating pipes lies a screed layer, which stabilizes the pipes and serves as a heat storage. Finally, the flooring such as tiles, laminate, or vinyl is laid, which evenly releases the stored heat into the room.
How is an underfloor heating installed?
When installing underfloor heating, experienced installers use two laying patterns: spiral or meander. With the spiral laying of the underfloor heating, an even surface temperature distribution is achieved because the supply line is placed right next to the return line. The meander-shaped laying is less even. This advantage is mainly utilized in so-called edge zones (e.g., in front of large glass surfaces).
How is an underfloor heating installed?
When installing underfloor heating, experienced installers use two laying patterns: spiral or meander. With the spiral laying of the underfloor heating, an even surface temperature distribution is achieved, as the supply line is placed right next to the return line. The meander-shaped laying is less even. This advantage is mainly utilized in so-called edge zones (e.g., in front of large glass surfaces).
An underfloor heating offers many advantages over traditional radiators. It distributes heat evenly throughout the room and reduces temperature fluctuations. The comfort of walking barefoot on a warm floor and the feeling of a consistent room temperature are not just comfort points – they also contribute to energy efficiency.
An underfloor heating offers many advantages over traditional radiators. It distributes heat evenly throughout the room and reduces temperature fluctuations. The comfort of walking barefoot on a warm floor and the feeling of a consistent room temperature are not just comfort points – they also contribute to energy efficiency.
An underfloor heating provides you with an even and gentle warmth. The entire floor area radiates the heat, making the room cozy and comfortable – without any cold corners. And a huge plus: you no longer have a radiator in the room. This means more space for furniture and a cleaner room design.
Another advantage is the high efficiency. Underfloor heating operates at lower temperatures than radiators, so it requires less energy. This saves real money in the long run. With a flow temperature of only 26-35°C, the heating can provide comparable or even more comfortable warmth than a conventional radiator.
Because the air circulates less, less dust is stirred up – ideal for allergy sufferers. Fewer air turbulences and a consistently pleasant room climate provide space to breathe.
A hidden heating system gives you the freedom to design your space without disruptive radiators. Especially in open living areas or modernly furnished rooms, underfloor heating unfolds its advantages in terms of room aesthetics and free space design.
Underfloor heating systems are more expensive to purchase than traditional radiators. The reason for this is the more complex materials, the large-scale installation, and the installation itself. However, you benefit in the long term from lower operating costs due to the high energy efficiency.
The installation of underfloor heating requires more planning and time, especially when retrofitting in older buildings. Once the system is installed, however, you will enjoy low-maintenance comfort for many years.
Types of Underfloor Heating
Dry screed vs Screed
The difference between underfloor heating in drywall construction and in screed lies mainly in the structure and installation method. In the drywall construction method, the heating pipes are laid in prefabricated compact panels without the use of screed. This allows for quick, clean installation with low construction weight and is ideal for renovations. In contrast, in the screed variant, the heating pipes are embedded directly in the screed, which serves as a heat storage. This method is particularly suitable for new buildings, offers high storage capacity, but requires a longer drying time.
Types of Underfloor Heating
Dry screed vs Screed
The difference between underfloor heating in drywall construction and in screed lies mainly in the structure and installation method. In the drywall construction method, the heating pipes are laid in prefabricated compact panels – without the use of screed. This allows for quick, clean installation with low construction weight and is ideal for renovations. In contrast, in the screed variant, the heating pipes are embedded directly in the screed, which serves as a heat storage. This method is particularly suitable for new buildings, offers high storage capacity, but requires a longer drying time.
What does an underfloor heating cost?
The cost of underfloor heating depends not only on the chosen system but also on installation, operation, and maintenance. Especially in renovations, the effort can be higher than in new constructions.
Careful cost planning in the early phase helps to avoid later surprises – both in terms of acquisition and ongoing operation.
Get advice from your trusted installer or heating engineer about the best option for you. A small tip: Pay particular attention to the energy efficiency of the underfloor heating – because in times of high energy prices, any higher acquisition costs for higher-quality heating systems quickly pay off thanks to lower operating costs!
What does an underfloor heating cost?
The costs of an underfloor heating system depend not only on the chosen system but also on installation, operation, and maintenance. Especially in renovations, the effort can be higher than in new constructions. Careful cost planning in the early phase helps to avoid later surprises – both in terms of acquisition and ongoing operation. Get advice from your trusted installer or heating engineer about the best option for you.
A small tip: Pay particular attention to the energy efficiency of the underfloor heating – because in times of high energy prices, any higher acquisition costs for higher-quality heating systems quickly pay off thanks to lower operating costs!
Is underfloor heating harmful to health?
Underfloor heating systems were operated at temperatures well above 30 °C back then, which may have negatively affected venous diseases.
Today, the surface temperatures of a well-adjusted underfloor heating system are significantly lower: 22 ° to 29 °C. From a medical perspective, this is harmless. On the contrary, evenly warm floors encourage walking barefoot – and that is healthy and good for the veins.
Is underfloor heating harmful to health?
Underfloor heating systems were operated at temperatures well above 30 °C back then, which may have negatively affected venous diseases.
Today, the surface temperatures of a well-adjusted underfloor heating system are significantly lower: 22 ° to 29 °C. From a medical perspective, this is harmless. On the contrary: Evenly warm floors encourage walking barefoot – and that is healthy and good for the veins.
Equip individual rooms with underfloor heating
Are you planning a bathroom renovation? Then think about the right heating system. Underfloor heating provides pleasant warmth in the bathroom – who likes stepping onto a cold floor after a warm shower or a relaxing bath?
Underfloor heating can also be installed in other rooms such as the bedroom, living room, or office – space-saving and without any disruptive radiators. Thanks to modern technology, a new low-temperature underfloor heating system can be easily integrated into an existing high-temperature system – even room by room during partial renovations.
Equip individual rooms with underfloor heating
Are you planning a bathroom renovation? Then think about the right heating system. Underfloor heating provides pleasant warmth in the bathroom – who likes stepping onto a cold floor after a warm shower or a relaxing bath?
Underfloor heating can also be installed in other rooms such as the bedroom, living room, or office – space-saving and without any disruptive radiators. Thanks to modern technology, a new low-temperature underfloor heating system can be easily integrated into an existing high-temperature system – even room by room during partial renovations.
Advice
Underfloor Heating systems operate at low temperatures. Nevertheless, they can easily be connected to existing high-temperature Heating systems (gas, biomass, etc.). This is made possible by special Manifolds from Variotherm.
Advice
Underfloor Heating systems operate at low temperatures. Nevertheless, they can easily be connected to existing high-temperature Heating systems (gas, biomass, etc.). This is made possible by special Manifolds from Variotherm.
IDEAL FLOOR COVERINGS FOR UNDERFLOOR HEATING
Allowed is what pleases – the important thing is that the chosen covering is suitable for use with underfloor heating. The basic rule is: the thicker the floor covering, the slower the heat transfer, as more time is needed to heat the covering. Materials such as tiles or natural stone are particularly suitable because they have high thermal conductivity.
IDEAL FLOOR COVERINGS FOR UNDERFLOOR HEATING
What is pleasing is allowed – the important thing is that the chosen covering is suitable for use with underfloor heating. The basic rule is: the thicker the floor covering, the slower the heat transfer, as more time is needed to heat the covering. Materials such as tiles or natural stone are particularly suitable because they have high thermal conductivity.
The most common questions about underfloor heating
Yes, underfloor heating is sufficient to heat the room on its own. However, the sizing must be adjusted to the room size and insulation standard.
The ideal temperature varies, but for living spaces it is usually between 20-23 °C. In bathrooms, it can be a bit warmer.
Yes, since underfloor heating does not cause dust turbulence when operated correctly, it is particularly suitable for allergy sufferers.
In principle, the maintenance effort is very low, which makes it particularly easy to care for. The lifespan of a water-based underfloor heating system is up to 50 years with proper installation.
Yes, special systems for renovations allow for easy installation even in old buildings. Often, attention is paid to a low construction height, easy installation, and low weight.
What pleases can be laid. Tiles and stone floors work best, but wood and vinyl are also suitable. The important thing is that the chosen covering is suitable for use with underfloor heating.