Electric Underfloor Heating

What is Electric Underfloor Heating?

Electric underfloor heating systems can sit beneath stone, tile, wood or even carpeted surfaces. A series of electric wires installed beneath or within the floor finish provide the heating element. There are a number of product types available, including loose-fit wiring, modular systems and heating mats.

The design of the installation will depend on the space size and dimensions, how well insulated it is, the nature of the flooring structure and the type of flooring covering. Generally, on new-build projects, cables or electric heating sheets are fitted beneath the floor finish on a layer of screed and insulation which ensure the floor is level and that the heat travels upwards into the space.


Pros & Cons of Electric Underfloor Heating


  • Saves Space – The main advantage of electric underfloor heating is that it is very slimline and space saving. That’s compared to both standard radiators and standard underfloor heating. The electric mesh lies under flooring completely flat, unlike traditional piped underfloor heating. This means that floors don’t need to be sunk or raised to accommodate bulky pipes, saving a huge amount of space.
  • Even Heat Distribution – Like with any underfloor heating system, the heating elements are distributed underneath the entirety of your floor, you will get a much more even heat in the room. It won’t just keep your feet warm in the winter, but it will ensure there are no cold or super hot spots in your rooms.


  • Longer Heat Up Time – Unlike piped heating or electric radiators, electric underfloor heating takes a long time to heat up fully. This means that you either need to turn on your heating hours before you need it or leave it on permanently through the colder months, both of which mean higher bills.
  • Complex Installation – The installation of electric underfloor heating is not simple even for professionals . Not only do they need to be placed on properly insulated bases (see above), but they also come with a series of controls and mats, which make installation itself time-consuming, complicated, expensive and very disruptive.
  • More Expensive Running Costs – The running costs of Electric Underfloor Heating is more expensive than water systems due to tariff prices. However, it is cheaper to install the system. If you’d like a quote then please contact us today!
  • We Do Not Install It – At Radiant we only supply and install water based Underfloor Heating systems but if you’d like Electric Underfloor then please look elsewhere.

How Does Electric Underfloor Heating Work?

Electric underfloor heating is usually placed on top of a layer of floor insulation, to ensure the heat travels upwards rather than down. This is first laid on a layer of screed (made of sand and cement) or suspended timber (floorboards on joists), to ensure the surface is completely flat.

The heating wires are then connected to your mains supply and it will also include a sensor to help regulate the temperature. You can then use a thermostat to control the temperature and pre-set the system to turn on or off.