Graphene-based radiant floor heating: the next generation of underfloor heating

Underfloor heating is gaining popularity among homeowners in France and across Europe thanks to its unmatched thermal comfort and even heat distribution. However, traditional systems—whether hydronic or electric resistance-based—still suffer from well-known limitations: the thickness of the screed, slow heat-up times, high installation costs, and complex maintenance.

The arrival of graphene-printed heating films is a game-changer. Thinner, more responsive, and more energy-efficient, they are ushering in a new era for underfloor heating—in both new construction and renovation projects. Here’s a closer look.

How does a traditional heated floor work?

Before examining the benefits of graphene, let’s review the two main types of underfloor heating systems currently installed in homes.

Hydraulic floor heating

It consists of a network of cross-linked polyethylene (PER) pipes embedded in a concrete slab, through which hot water generated by a boiler, a heat pump, or a district heating system circulates. It is currently the most common solution in new construction.

Limitations: thick screed (often 6 to 10 cm), high thermal inertia (takes several hours to reach the set temperature), risk of leaks, high installation cost, not well suited for renovation.

Electric floor heating with resistance cables

It uses cables or heating mats installed beneath the flooring. Heat is generated by the Joule effect as electricity flows through them.

Limitations: often high power consumption, localized hot spots near the cables, limited service life due to mechanical stress, and lower energy efficiency compared to modern hydraulic solutions.

Graphene: A Paradigm Shift for Underfloor Heating

Graphene is a sheet of carbon atoms just one atom thick, arranged in a hexagonal lattice. Its exceptional thermal conductivity, which can reach 5,300 W/m·K, makes it an ideal candidate for the rapid and even distribution of heat over large areas—exactly what is required of a heated floor.

The principle of printed heating film

Instead of embedding cables in a screed or installing a complex hydraulic system, a graphene-based conductive ink is printed onto a thin, durable, flexible polymer substrate. The result is a heating mat just a few hundred microns thick that unrolls like a rug and heats evenly across its entire surface.

This is the principle behind the ABF® technology developed by Graphenaton, designed for use in electric radiators and, more broadly, in all large-surface heating systems—including heated floors, ceilings, and walls.

Infrared radiation transmission

Unlike traditional convection heaters, which heat the air in the room (causing it to rise toward the ceiling), graphene floor heating primarily emits heat through infrared radiation. This method of heat transfer directly warms the people and objects in the room, without any heat loss upward. This is precisely why it feels so much more comfortable even at a lower set temperature.

Five concrete benefits of graphene-based radiant floor heating

1. Unbeatable finesse

With a film just a few hundred microns thick laid directly under the floor covering (tile, hardwood, vinyl, laminate), the total thickness of the system remains very minimal. This makes the solution particularly well-suited for renovation projects, where ceiling height and the available subfloor thickness are often limited.

2. An almost instantaneous rise in temperature

Whereas a hydronic floor heating system takes several hours to reach its set temperature, graphene heating film achieves this in just a few minutes. There’s no longer any need to program the heating in advance: it’s now possible to heat on demand, room by room, without wasting energy.

3. A 30% to 40% reduction in energy consumption

According to data provided by Graphenaton in an interview with Pierre-Noël Formigé published on Sphere, graphene heating solutions reduce energy consumption by 30 to 40 percent while maintaining the same level of performance as existing systems—a significant savings on a household’s annual energy bill.

4. Consistent and quiet thermal comfort

No localized hot spots, no cold spots, no sound of water flowing, and no vibrations. The heat is distributed evenly across the entire surface, creating what heating engineers call an “ideal temperature curve”: warm feet, cool head.

5. Simplified installation and virtually no maintenance

No piping, no risk of leaks, no pumps or circulators. Installation is as simple as unrolling the film, connecting it to the power supply, and laying the flooring on top. Graphene, an extremely chemically stable material, has a lifespan that far exceeds that of traditional systems.

Performance Comparison: Graphene vs. Conventional Solutions

Here is a summary comparison to illustrate the differences:

• System thickness: graphene ≈ 1 to 5 mm | hydraulic ≈ 60 to 100 mm | resistive cables ≈ 10 to 30 mm
• Heating time: graphene ≈ 2 to 5 min | hydraulic ≈ 2 to 6 h | resistance cables ≈ 30 to 60 min
• Relative energy consumption: graphene = base 100 | hydraulic ≈ 130–140 | resistive cables ≈ 140–160
• Suitable for renovation: graphene = yes (ideal) | hydronic = difficult | resistive cables = yes
• Maintenance: graphene = virtually none | hydraulics = routine (bleeding, pressure, circulator) | resistance cables = low

What are the uses of graphene-based radiant floor heating?

Residential Energy-Efficiency Renovations

This is the most obvious application. In an older home or an apartment undergoing renovation, where the goal is to remove old convector heaters without undertaking major construction work, graphene heating film can be installed in just a few days, under hardwood or tile flooring.

High-performance new construction

For buildings aiming for BBC, RE2020, or passive certification, the energy efficiency of graphene, combined with advanced insulation, enables very low energy consumption, in line with national energy transition goals.

Commercial and industrial properties

Offices, retail spaces, workshops, gyms: wherever a large area needs to be heated quickly and evenly, graphene film is a highly attractive option, especially since it can be controlled on a zone-by-zone basis.

Specialized uses

Beyond residential heating, the same graphene heating film technology is used in applications such as de-icing wind turbines, preheating electric vehicle batteries, and ultra-thin heated car seats and windshields.

Financial assistance and certifications

High-performance electric heating solutions may be eligible, under certain conditions, for several government assistance programs in France:

• Energy Saving Certificates (CEE), provided the product meets the NF Électricité Performance standards.
• MaPrimeRénov' for certain comprehensive energy-efficiency renovation projects.
• A reduced VAT rate of 5.5% for energy-efficiency renovations in residential buildings that are more than two years old.

Radiators equipped with Active Building Film® are designed to meet the NF Électricité Performance 3-star standard, making them eligible for energy efficiency credits—a key selling point for both homeowners and contractors.

The challenges that remain

The initial cost

Although the cost of graphene has fallen sharply in recent years thanks to more efficient production methods such aselectrochemical exfoliation, the purchase price of a graphene-based system remains, to date, slightly higher than that of a standard resistive cable. The difference is quickly offset by energy savings, but the initial cost can be a deterrent.

Standardization

As with all graphene-based technologies, variations in properties across different suppliers remain a challenge. The ISO/TC 229 and IEC/TC 113 standards are making progress in this area, and reputable industry players are providing precise and reproducible technical data sheets.

The installation sector

The number of skilled installers for this type of system is growing, but the network of such professionals in France still needs to be expanded. This is a rapidly evolving sector as the technology becomes more widely available.

Conclusion: Underfloor heating is entering a new era

With graphene, underfloor heating is no longer a trade-off between comfort and installation complexity. It has become a simple, slim, energy-efficient, and high-performance solution, perfectly suited to the demands of the energy transition and modern comfort.

For homeowners planning renovations, as well as for developers and architectural firms working on new construction projects, the industrial maturity of printed heating films opens up a viable path toward homes that are both more comfortable and significantly more energy-efficient.

To learn more, check out our article on the thermal conductivity of graphene and electric heating, as well as our feature onoptimizing wind turbine de-icing with graphene.