Heating Film Systems for Indoor Underfloor Heating

Heating Film Systems ECOFILMUnderfloor heating

Heating Film Systems for Indoor Underfloor Heating

Heating film systems for indoor underfloor heating are slim electric heating elements installed directly beneath the floor covering. They deliver even heat distribution throughout the room, add negligible height to the floor build-up, and provide a cost-effective heating solution for both homes and offices.

I'm interested

FENIX systems are available in 70+ countries.
Need a local contact? Reach out and we’ll connect you.

Why choose ECOFILM heating films for underfloor heating?

Ultra-thin profile: installed in dry-construction systems with a minimal installation height, making them ideal for use under floating floors and carpets

Energy-efficient heating: each zone and room can be controlled independently

Fast thermal response: heat is generated significantly faster than with hot-water underfloor heating systems

Smart home compatible: integrates with systems such as Loxone and the FENIX Control app

Exceptional durability: when handled correctly during installation and any subsequent work, the heating film will last a lifetime

Heating Film systems

Topná fólie ECOFILM pro podlahové vytápění interiéru

Heating Film Systems Film sold by the metre

Set ECOFILM set

Ultra-thin profile

At just 0.4 mm thick, ECOFILM heating film can be installed without raising the floor level — making it particularly well suited to renovation projects. The film lays directly beneath the final floor covering with no impact on the floor's structure or appearance.

Heats the entire floor area

ECOFILM underfloor heating films heat the entire floor surface uniformly, even at low output levels of 40–80 W/m².

Temperature control via a smart home system

ECOFILM heating films are a modern underfloor heating solution fully compatible with smart home systems. When paired with compatible thermostats and controls, they enable precise temperature management — both locally and centrally — including remote control via the FENIX Control app.

ECOFILM films integrate seamlessly into smart home ecosystems, working alongside other home technologies to adapt heating to actual occupancy and energy management needs. The result is enhanced comfort, efficient energy use, and complete control over your heating — automated and intelligent.

Frequently asked questions about heating films for indoor underfloor heating

How do ECOFILM heating films work in underfloor heating systems?

ECOFILM heating films are thin electric heating elements installed directly beneath the final floor covering. Their key advantage is genuinely uniform heat distribution across the entire surface. They warm the room through even radiant heat from the floor, delivering a high level of thermal comfort and a pleasant sensation of warmth underfoot. Their minimal installation height makes them suitable for both new builds and renovation projects.

Tomáš Rovnaník

Technik podpory prodeje | Sales Support Technician

For which types of flooring are ECOFILM heating films suitable?

ECOFILM Heating Films systems are primarily designed for floating floors, such as laminate, timber or vinyl floor coverings. The system is designed to ensure safe operation and a long service life for both the floor and the heating films. Correct power rating and regulation settings are important for each type of flooring.

Josef Andrýsek

Technik podpory prodeje | Sales Support Technician

Is underfloor heating with ECOFILM heating films energy-efficient, and how is it controlled?

Yes. ECOFILM underfloor heating is an energy-efficient system. Operating at low temperatures with individual room control, it can be optimised to match actual heating needs at all times. When combined with smart controls, it becomes a genuinely economical heating solution. The system requires a thermostat that monitors both the room air temperature and the floor temperature via a dedicated floor sensor.

Josef Andrýsek

Technik podpory prodeje | Sales Support Technician

What is the warranty when combining a floating floor with ECOFILM underfloor heating film?

Heating films actually operate at very low temperatures of 23–27 °C, and changes in floor temperature occur within tens of minutes. A floating floor is therefore operated under virtually the same conditions as if it were laid on a concrete floor with hot-water underfloor heating. Heating films have also already been tested by several manufacturers, who have confirmed that, when using ECOFILM heating film with an output of up to 80 W/m² and controlled by a thermostat with a floor sensor, there is no reason for the warranty to be voided.

Miroslav PETR

Vedoucí tuzemského obchodu | Head of Domestic Sales

Can ECOFILM heating film be used under tiling? What power rating should be used?

ECOFILM heating films cannot be used under tiled floors; they are designed for use under floating floors and their construction does not meet the requirements of the standard for installation in damp areas. Furthermore, they would act as a separating layer, preventing the adhesive from bonding the underlay to the subfloor. We recommend using LDTS (160 W/m²) or LD (160 W/m²) heating mats in combination with F-board insulation panels. If you do not use thermal insulation, there will be significant heat loss into the subfloor and it will take an unnecessarily long time for the floor to heat up. With F-board panels, the floor will heat up within 30 minutes; without them, this may take between 1.5 and 2.5 hours.

Tomáš Rovnaník

Technik podpory prodeje | Sales Support Technician