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Heating Cables

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Heating cables

Indoor heating cables are used for a variety of applications, including indoor comfort floor heating and total heating, both for small houses as well as large commercial buildings. Heating cables are mostly used in connection with new build or larger renovation projects. Heating cables used in floor constructions are serial resistive cables, preferably twin conductor for easier installation. A range of single conductor cables are also available.

Check our application manuals via the links below to get the best recommendations for design and installation of floor heating systems.​

DEVI indoor application manual​
Danfoss indoor application manual​

Benefits of electric underfloor heating

A comfortable ambient temperature and quick response time are just a couple of the benefits electric heating offers. Learn more about these and other benefits of electric heating.

Learn more

Features and benefits using heating cables

Easy to install, flexible cable

Maximum performance and fast installation

Fast reaction time

Safe and robust

Invisible heat source

Ease of installation

Long life-time with up to 20-year full warranty

80 years of experience resulting in powerful products built with the highest standards of quality control.

Product catalog

80 years of experience resulting in powerful products built with the highest standards of quality control.

Open product catalog

Product range

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    DEVIflex™​

    DEVIflex™ is an extremely high quality, 360°, fully screened, twin conductor cable with a tough non-UV stable outer sheath. Its round profile and robust construction ensures a fast, simple and safe installation.

  • if (isSmallPicture) { ECFlex; } else if (isBigColumns) { ECFlex } else { ECFlex }
    ECflex

    ECflex is 360° fully screened twin conductor cable with a tough outer sheath (non UV stable) of an extremely high quality. It enables a fast, simple and safe installation due to its round profile and robust construction.

  • if (isSmallPicture) { DEVIbasic; } else if (isBigColumns) { DEVIbasic } else { DEVIbasic }
    DEVIbasic™

    DEVIbasic™ is a high-quality, braided screen, single conductor cable with a non-UV stable outer sheath. Its round profile and robust construction ensure a fast, simple and safe installation.

  • if (isSmallPicture) { ECbasic; } else if (isBigColumns) { ECbasic } else { ECbasic }
    ECbasic

    ECbasic is a single conductor cable of a high quality, with a non UV stable outer sheath and braided screen. Due to its round profile and robust construction it enables a fast, simple and safe installation in different applications.

  • if (isSmallPicture) { DEVIcomfort™; } else if (isBigColumns) { DEVIcomfort™ } else { DEVIcomfort™ }
    DEVIcomfort™

    DEVIcomfort™ is an extremely high quality, 360° fully screened, twin conductor cable with a tough red PVC outer sheath (non UV stable). Its round profile, robust construction and low height ensures a fast, simple and safe installation which is perfect for renovating existing floors. The cold lead has solid conductors ensuring fast installation.​

  • if (isSmallPicture) { Heating mats; } else if (isBigColumns) { Heating mats } else { Heating mats }
    Heating Mats

    The heating mats are used for installation in a thin layer of tile adhesive, self-leveling mixture, or similar. The standard minimum thickness of the floor layer is 5-8 mm while the thickness of electric heating mat is 3–4.5 mm. This minimizes the floor level increase. Electric heating mats consist of a thin cable securely fixed on self-adhesive glass-fiber mesh, usually of 50 cm width. Thin heating mats are manufactured as ready-made heating sections with a specific area (i.e. 0.5, 1, 1.5 … 12 m²) including a power supply cable (cold lead) and hermetically sealed connections.

  • if (isSmallPicture) { Digital Thermostats; } else if (isBigColumns) { Digital Thermostats } else { Digital Thermostats }
    Digital Thermostats

    Digital controllers have the unique features allowing you to reduce energy waste. Some thermostats are fitted with Wi-Fi allowing remote control of heating systems via mobile application.

  • if (isSmallPicture) { Analogue Thermostats; } else if (isBigColumns) { Analogue Thermostats } else { Analogue Thermostats }
    Analogue Thermostats

    Analogue thermostats are electronic control units allowing setting the heating system type and adjustment of control parameters.​

Relevant accessories

Relevant accessories

Find relevant accessories by following this link

Accessories in Product Store
Elements of electric heating cable​
Elements of electric heating cable​

1. Heating cable​

2. Suply cable​

3. Connecting muff​

4. Connection to power supply​

5. End of the heating cable​

Electric heating cable construction​
Electric heating cable construction​

1. Outer PVC coating​

2. Protective screen foil (Aluminium)​

3. Protective conductor​

4. Internal insulation (XLPE)​

5. Heating element (resistance thread)​

Videos

DEVIflex™​
Best practices for DEVIflex electric heating cable installation

Find out how to get the most out of your electric heating cable system and set a comfortable floor surface temperature. Learn about the optimal cable to cable distance, the right output per square meter and the ideal depth for cable installation.

ECflex​
Comfort floor heating with ECflex heating cables

Heating cables are mostly used in connection with new building or with larger renovation projects, where a completely new floor construction is laid out.

installation
Step-by-step installation of electric heating cables

See how to install heating cables with temperature sensors and find out how to calculate:

  • the heated floor area,
  • the appropriate C-C distance, and
  • the fixing strip length.
DEVI

Electric heating knowledge on YouTube

You can see all our videos about Electric Heating on a dedicated playlist on YouTube. Follow the link below.

Go to the Electric Heating playlist on YouTube

Documents

Documents
Type Name Language Valid for Updated Download File type
Application guide Danfoss Indoor Cable Floor Heating Systems Application manual English Multiple 20 Aug, 2018 3.6 MB .pdf
Catalog Danfoss Product catalogue Romanian, Moldavian, Moldovan Romania 18 Jul, 2017 418.0 KB .pdf
Catalog Danfoss Product catalogue English Multiple 05 Dec, 2022 25.7 MB .pdf
Application guide DEVI Indoor Application manual Danish Denmark 03 Jun, 2021 4.8 MB .pdf
Application guide DEVI Indoor Application manual English Multiple 04 Nov, 2016 23.6 MB .pdf
Application guide DEVI Indoor Application manual Romanian, Moldavian, Moldovan Romania 26 May, 2022 21.2 MB .pdf
Application guide DEVI Indoor Application manual Russian Central Asia Unit 15 Sep, 2020 21.2 MB .pdf
Application guide DEVI Indoor Application manual Swedish Sweden 22 Jun, 2022 20.8 MB .pdf
Catalog DEVI Product Catalogue Finnish Finland 25 Jan, 2023 30.6 MB .pdf
Catalog DEVI Product Catalogue English Multiple 05 Dec, 2022 38.3 MB .pdf
Catalog DEVI Product Catalogue Norwegian Bokmål Norway 28 Jun, 2022 13.6 MB .pdf
Catalog DEVI Product Catalogue 2022 Latvian Latvia 29 Mar, 2022 3.1 MB .pdf
Data sheet DEVIbasic™ 20S (DSIG) Ukrainian Ukraine 24 Dec, 2021 64.5 KB .pdf
Data sheet DEVIbasic™ 20S (DSIG) - 230V English Multiple 09 Jun, 2022 443.1 KB .pdf
Data sheet DEVIcomfort™ 10T (DTIR) English Multiple 03 Oct, 2022 353.6 KB .pdf
Data sheet DEVIcomfort™ 10T (DTIR) Danish Denmark 19 Oct, 2022 196.1 KB .pdf
Data sheet DEVIflex 10T/18T German Multiple 18 Mar, 2021 357.5 KB .pdf
Data sheet DEVIflex™ 10T Polish Poland 17 Jan, 2020 70.2 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Slovenian Slovenia 05 Sep, 2013 150.7 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Serbian (RS) Serbia 05 Sep, 2013 151.6 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Slovak Slovakia 05 Sep, 2013 152.3 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) French France 31 Jan, 2014 152.0 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Russian Central Asia Unit 30 Aug, 2019 450.8 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Finnish Finland 05 Sep, 2013 150.5 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Croatian Croatia 05 Sep, 2013 151.2 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Hungarian Hungary 05 Sep, 2013 153.2 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Spanish, Castilian Spain 05 Sep, 2013 151.4 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Lithuanian Lithuania 05 Sep, 2013 151.1 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Latvian Latvia 05 Sep, 2013 151.4 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Kazakh Kazakhstan 05 Sep, 2013 211.3 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Bulgarian Bulgaria 30 Aug, 2013 156.0 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Estonian Estonia 05 Sep, 2013 148.2 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Czech Czech Republic 05 Sep, 2013 153.4 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Portuguese Portugal 05 Sep, 2013 151.8 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Romanian, Moldavian, Moldovan Romania 05 Sep, 2013 151.3 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Norwegian Bokmål Norway 17 Nov, 2020 165.4 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Turkish Turkey 05 Sep, 2013 152.3 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Ukrainian Ukraine 24 Dec, 2021 69.0 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Danish Denmark 19 Oct, 2022 216.9 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) English Multiple 09 Jun, 2022 396.7 KB .pdf
Data sheet DEVIflex™ 10T (DTIP) Swedish Sweden 05 Sep, 2013 151.1 KB .pdf
Data sheet DEVIflex™ 18T Danish Denmark 19 Oct, 2022 210.3 KB .pdf
Data sheet DEVIflex™ 18T Polish Poland 17 Jan, 2020 68.9 KB .pdf
Data sheet DEVIflex™ 18T (DTIP) Slovenian Slovenia 05 Sep, 2013 149.8 KB .pdf
Data sheet DEVIflex™ 18T (DTIP) Croatian Croatia 05 Sep, 2013 150.4 KB .pdf
Data sheet DEVIflex™ 18T (DTIP) Lithuanian Lithuania 05 Sep, 2013 150.4 KB .pdf
Data sheet DEVIflex™ 18T (DTIP) Hungarian Hungary 05 Sep, 2013 152.4 KB .pdf
Data sheet DEVIflex™ 18T (DTIP) Bulgarian Bulgaria 30 Aug, 2013 155.3 KB .pdf
Data sheet DEVIflex™ 18T (DTIP) Estonian Estonia 05 Sep, 2013 149.7 KB .pdf
Data sheet DEVIflex™ 18T (DTIP) Czech Czech Republic 05 Sep, 2013 152.8 KB .pdf
Data sheet DEVIflex™ 18T (DTIP) Finnish Finland 05 Sep, 2013 149.7 KB .pdf
Data sheet DEVIflex™ 18T (DTIP) Latvian Latvia 05 Sep, 2013 150.5 KB .pdf
Data sheet DEVIflex™ 18T (DTIP) Kazakh Kazakhstan 05 Sep, 2013 210.6 KB .pdf
Data sheet DEVIflex™ 18T (DTIP) Spanish, Castilian Spain 05 Sep, 2013 150.5 KB .pdf
Data sheet DEVIflex™ 18T (DTIP) Norwegian Bokmål Norway 05 Sep, 2013 149.5 KB .pdf
Data sheet DEVIflex™ 18T (DTIP) Portuguese Portugal 05 Sep, 2013 150.9 KB .pdf
Data sheet DEVIflex™ 18T (DTIP) Serbian (RS) Serbia 05 Sep, 2013 150.8 KB .pdf
Data sheet DEVIflex™ 18T (DTIP) Slovak Slovakia 05 Sep, 2013 151.6 KB .pdf
Data sheet DEVIflex™ 18T (DTIP) Turkish Turkey 05 Sep, 2013 151.6 KB .pdf
Data sheet DEVIflex™ 18T (DTIP) Romanian, Moldavian, Moldovan Romania 05 Sep, 2013 150.4 KB .pdf
Data sheet DEVIflex™ 18T (DTIP) Ukrainian Ukraine 24 Dec, 2021 63.9 KB .pdf
Data sheet DEVIflex™ 18T (DTIP) English Multiple 09 Jun, 2022 391.5 KB .pdf
Data sheet DEVIflex™ 6T Polish Poland 10 Jan, 2020 67.9 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) English Multiple 09 Jun, 2022 388.7 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Danish Denmark 19 Oct, 2022 208.6 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Norwegian Bokmål Norway 17 Nov, 2020 164.3 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Ukrainian Ukraine 24 Dec, 2021 64.1 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Croatian Croatia 04 Sep, 2013 150.1 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Finnish Finland 05 Sep, 2013 149.7 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Kazakh Kazakhstan 04 Sep, 2013 225.7 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Turkish Turkey 04 Sep, 2013 151.5 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Serbian (RS) Serbia 04 Sep, 2013 150.6 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Russian Central Asia Unit 04 Sep, 2013 154.0 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Slovak Slovakia 04 Sep, 2013 151.4 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Swedish Sweden 04 Sep, 2013 150.1 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Slovenian Slovenia 04 Sep, 2013 149.8 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Lithuanian Lithuania 04 Sep, 2013 150.2 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Czech Czech Republic 04 Sep, 2013 153.3 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Estonian Estonia 04 Sep, 2013 146.1 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Spanish, Castilian Spain 04 Sep, 2013 150.4 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Bulgarian Bulgaria 30 Aug, 2013 154.2 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Hungarian Hungary 04 Sep, 2013 152.0 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Romanian, Moldavian, Moldovan Romania 04 Sep, 2013 150.4 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Portuguese Portugal 04 Sep, 2013 150.9 KB .pdf
Data sheet DEVIflex™ 6T (DTIP) Latvian Latvia 04 Sep, 2013 150.4 KB .pdf
Data sheet ECflex 6T English Multiple 23 Jul, 2020 438.2 KB .pdf
Data sheet ECflex™ 10T (EFTCP) Romanian, Moldavian, Moldovan Romania 24 Sep, 2013 212.9 KB .pdf
Data sheet ECflex™ 10T (EFTCP) Swedish Sweden 25 Jun, 2015 713.6 KB .pdf
Data sheet ECflex™ 10T (EFTCP) Chinese (CN) China 05 Sep, 2013 477.5 KB .pdf
Data sheet ECflex™ 10T (EFTCP) Dutch, Flemish Netherlands 05 Sep, 2013 198.8 KB .pdf
Data sheet ECflex™ 10T (EFTCP) English Multiple 10 Nov, 2021 480.6 KB .pdf
Data sheet ECflex™ 18T (EFTCP) Romanian, Moldavian, Moldovan Romania 24 Sep, 2013 213.5 KB .pdf
Data sheet ECflex™ 18T (EFTCP) Dutch, Flemish Netherlands 05 Sep, 2013 199.3 KB .pdf
Data sheet ECflex™ 18T (EFTCP) Chinese (CN) China 05 Sep, 2013 324.9 KB .pdf
Data sheet ECflex™ 18T (EFTCP) English Multiple 10 Nov, 2021 489.6 KB .pdf
Data sheet ECflex™ 20T (EFTCP) Dutch, Flemish Netherlands 05 Sep, 2013 199.1 KB .pdf
Data sheet ECflex™ 20T (EFTCP) Romanian, Moldavian, Moldovan Romania 24 Sep, 2013 296.7 KB .pdf
Data sheet ECflex™ 20T (EFTCP) Chinese (CN) China 05 Sep, 2013 326.5 KB .pdf
Data sheet ECflex™ 20T (EFTCP) English Multiple 10 Nov, 2021 477.8 KB .pdf
Catalog Електричні кабельні нагрівальні системи DEVI Ukrainian Ukraine 14 Sep, 2022 5.0 MB .pdf

Tools and apps

EH Plugin for AutoCAD
EH Plugin for AutoCAD

The Plugin supports your engineering and design journey by making your work faster due to simple functionalities in calculating all lengths, dimensions and product data of cables and mats. It covers all applications within Electric Heating projects: Electric floor heating, Ice & Snow melting systems, Pipe tracing, Cold stores, Sport fields, Vineyards etc.
By utilizing Plugin, you will reduce design time for the project, provide all necessary information for installers in HTML/PDF format: BoM, resistance value check list, warranty list format. It means all project information can be consolidated in one file.

Plugin can be used with AutoCAD 2017-2023.

Heat Selector
Heat Selector

The Danfoss Heat Selector is a best-in-class online selection tool that optimizes planning process for heating application experts. The Heat Selector saves time in calculation for product selection and guides you to the recommended product mix for the application at hand. At the same time, the Heat Selector provides you with easy access to all required documentation.

80 years of DEVI Electric Heating

80 years of energy efficient and environmentally friendly electric heating innovation

Read more

FAQ

Yes, all cables can be repaired. Electric heating offers a comprehensive and accurate fault (location) finding service. Contact your electrical installer for more details. 
 

Cold tails can be extended based on wire length, specific output, cross sections, but it needs a separate calculation. Please contact your local technical support. 

In the case of a broken cold lead an equal length of the same cross section and type cold lead can be used as a replacement when mounted by authorized personnel.  

Sensor cable can be extended up to 100 m without contacting local support, using the same cross sections of wires (e.g. 0,75 mm2). For longer lengths please contact local technical support. 
 

This will depend upon the finish specified. For timber surfaces: 20mm for soft wood; 30mm for hard wood; most wood laminates are OK, but may need to be treated on merit. Talk to your floor covering supplier. Most vinyl floor coverings are suitable as long as you adhere to the manufacturer’s temperature limits and the elements are encased within the floor or a surface screed/FLC. Most carpets and underlays are suitable. 

This will depend upon the area being heated and the density of electric heating cable installed. Typically, we install at approx. 140 to 150 W/m² of heated floor area. Contact an installer recommended by DEVI / Danfoss Electric Heating for advice. 

Yes, provided the cables are first covered with latex floor leveling compound, and the carpet used with a floor heating system is certified, approved, and confirmed by its manufacturer. 
 

DOs and DON’Ts for Indoor Electric Heating

DOs and DON’Ts for Indoor Electric Heating

Electric Heating is an energy-efficient and environmentally friendly floor heating solution. You can use it for either newly constructed or renovated homes.

Read more

Warranty

Warranty

At Danfoss, it is important for us to deliver high-quality products with long-lasting effects. Should you, against all expectations, experience a problem with your product, Danfoss offers a warranty for electric heating products valid from the date of purchase that was no later than 2 years from production date.
 
Depending on the product, the product guarantee is valid for two years, five years, or twenty years.
 
Product warranty covers costs for:

  • product replacement with a new comparable product or repair of the product
  • transportation costs
Warranty terms
electric heating

How to register for an electric heating warranty

Learn how to properly check cables or mats, do a resistance test and take all the necessary steps to get a warranty.

Learning

Danfoss learning - online training free of charge

Visit our Learning Center

Danfoss offers online training materials for technicians and designers working with electric heating. There are 3 e-lessons available free and on-demand through Danfoss Learning portal. For more information, register in our support section by following the link or find the overview of available relevant trainings in the table below.

Register here

Case stories

Floor Heating Levi Village Lapland
Romantic surroundings in Lapland multiplied by comfort of electric heating.

40 igloos - Aurora cabins – are located in the wintry forest. They are glass-roofed so that guests can wrap up in a blanket and enjoy the breathtaking views of the Milky Way, the North star and the Northern lights.

Electric Floor Heating Timber Building NO
Electric heating in the world’s tallest timber building in Norway

Officially the world's tallest timber building at 85.4 m (280 ft) tall, Mjøstårnet translates as “the tower of lake Mjøsa”. The building is named after Norway’s biggest lake, which it is located beside.

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    As a leading supplier within commercial refrigeration our extensive product range enables us to support solutions for anything from transport refrigeration to speciality cooling.

  • if (isSmallPicture) { Danfoss Smart Store demonstrates the journey towards a zero-energy supermarket; } else if (isBigColumns) { Danfoss Smart Store demonstrates the journey towards a zero-energy supermarket } else { Danfoss Smart Store demonstrates the journey towards a zero-energy supermarket }
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    The need for supermarkets to improve energy efficiency, reduce food loss and minimize carbon footprint is higher than ever before. In cooperation with a Danish supermarket Danfoss has installed all the lasted technologies and solutions to achieve one of the most energy efficient supermarkets possible.

  • if (isSmallPicture) { hotel room; } else if (isBigColumns) { hotel room } else { hotel room }
    Hotels

    The hotel industry is a highly competitive sector where margins are constantly under pressure. The service towards guests must remain on a high level to hold the hotels' reputation. Saving energy is a key-differentiator. Danfoss offers comfort increasing HVAC solutions which help reduce the energy consumption.

  • if (isSmallPicture) { Multi-family buildings; } else if (isBigColumns) { Multi-family buildings } else { Multi-family buildings }
    Multi-family buildings

    Modern heating technology gives property owners and managers numerous ways to improve energy efficiency in their buildings. Whether planning a new build, renovation or refurbishment.

  • if (isSmallPicture) { Office building; } else if (isBigColumns) { Office building } else { Office building }
    Offices

    The ways office buildings are used is changing fast. Trends such as smart offices, digitalization and flexible work stations require adaptations in the technical aspects as well. Optimal indoor comfort for workers is essential. Danfoss offers comfort-increasing and energy-saving HVAC solutions.

  • if (isSmallPicture) { Single family house; } else if (isBigColumns) { Single family house } else { Single family house }
    Single family houses

    Heating accounts for most of the energy used in 1- and 2-family houses. Most existing houses have the potential to realize significant energy savings, by improving the heating system and optimizing control of heating operations.

Contact us

For further information, please contact us for technical support