Opening hours: Mon - Sat: 8.30am To 9.00pm

Underfloor Heating Guide

What is Underfloor Heating

Nothing beats stepping onto a heated floor during the winter. Underfloor heating is becoming increasingly popular as a modern and effective way to keep houses warm while also giving comfort and luxury underfoot. This blog post will go over all you need to know about underfloor heating, including its types, benefits, working mechanism, installation costs, and the finest floor coverings to complement this revolutionary heating system.

What is Underfloor Heating?

As the name implies, underfloor heating is a heating system placed beneath the floor surface. It radiates heat upward from the ground, evenly warming the room from the floor level. Unlike traditional radiators or forced-air systems, underfloor heating provides a more efficient and consistent approach to heating living rooms.

Underfloor Heating System Working

Underfloor heating systems function by producing heat and allowing it to rise naturally from the floor, distributing heat evenly throughout the space. Electric systems generate heat by electrical resistance, whereas water-based systems move hot water through pipes to achieve the needed temperature.

The heat released by the floor directly heats the objects and provides warmth to the people in the space, resulting in a more comfortable and pleasant living environment. This heating method is considered preferable to standard radiators or heaters, which primarily heat the air, resulting in inconsistent temperatures and heat loss.

Types Underfloor Heating System

Underfloor heating systems are classified into two types: electric underfloor heating and water-based underfloor heating.

Electric Underfloor Heating System

Electric underfloor heating is a technology that installs electric cables under the floor surface. It is a popular choice for retrofitting in existing homes or smaller areas such as bathrooms because it is significantly easier and less expensive to install.

Water-Based Underfloor Heating

This system comprises a network of pipes through which hot water moves, resulting in heating the floor. Hydronic or water-based underfloor heating is extremely efficient, making it appropriate for bigger spaces or new buildings. It is necessary to use a water heater or a heat pump to heat the water, which increases the installation cost when compared to electric systems.

Table of Contents

If you have any question feel free to contact us!

Underfloor Heating System Installations

Underfloor Heating System Installation

Both types of underfloor heating systems have different installation procedures,

Water-Based Underfloor Heating Installation

Installation of the water-based underfloor heating system involves the following steps:

Assessment and Planning

  • Determine the suitability of the property for underfloor heating.
  • Calculate the heat requirements based on room sizes and insulation levels.
  • Plan the layout of the system, considering pipe spacing and manifold location.

Floor Preparation

  • Remove existing flooring, if necessary, to expose the subfloor.
  • Ensure the subfloor is debris-free, level, and clean.

Insulation Installation

  • Lay down thermal insulation boards or panels to diminish heat loss and enhance system efficiency.

Pipework Installation

  • Install the underfloor heating pipes in accordance with the planned design.
  • Connect the pipes to the manifold, which will distribute the water flow.

Pressure Testing

  • Pressure test the pipework to identify any leaks or issues before proceeding.

Floor Screeding/Pouring

  • Cover the pipework with a self-levelling screed or concrete layer to encase the pipes securely.

System Integration

  • Connect the underfloor heating system to the central heating source (boiler, heat pump, etc.).
  • Install the thermostat and controls to manage the heating system effectively.

Flooring Installation

  • Once the screed has cured, lay the desired flooring material on top of the underfloor heating system.

Testing and Commissioning

  • Test the underfloor heating system to ensure it operates correctly.
  • Balance the system to ensure even heat distribution across all rooms.

Electric Underfloor Heating Installation

Follow the first three steps of water-based underfloor heating installation and then follow these:

Underfloor Heating Mat Installation

  • Roll out the electric heating mats with embedded heating cables onto the subfloor.
  • Ensure the mats cover the designated heating areas and cut the mat to fit if necessary.
  • Connection and Insulation
  • Connect the heating mats to the thermostat and power supply.
  • Insulate the floor using suitable materials to reduce heat loss.

Thermostat Installation

  • Mount the thermostat in a convenient place and wire it to the system.

After placing the system, install the flooring and test the system as you did with the water-based underflooring system.

Remember, both installations may require electrical or plumbing expertise depending on the specific system being installed, and it’s essential to follow manufacturer guidelines and local building codes. If you’re not experienced in these installations, seeking professional help is recommended to ensure a safe and efficient underfloor heating system.

If you have any question feel free to contact us!

The Advantages of an Underfloor Heating System

There are various advantages of installing underfloor heating in your home:

Comfort: Underfloor heating delivers even and gentle heating, preventing cold patches and breezes. Winter walks on a warm floor are a delightful experience.

Energy-Efficient: Water-based underfloor heating is particularly efficient since it operates at lower temperatures than traditional heaters, lowering energy consumption and utility expenditures.

Space-Saving: Underfloor heating eliminates the need for large radiators, and wall space is freed up, providing more space for arrangements and interior designs.

Healthier Environment: Underfloor heating does not circulate dust and particles, making it a healthier alternative to regular heaters.

No Noise: Underfloor heating operates quietly, producing a pleasant and peaceful ambience in your house.

Underfloor Heating System Installation Cost

Underfloor heating installation costs vary based on the type of system used, the amount of space to be heated, and the complexity of the installation. Electric underfloor heating is often less expensive to install, making it a cost-effective alternative for smaller rooms. On the other hand, water-based systems have higher upfront expenses due to the necessity for a water heater or heat pump as well as substantial pipes. While water-based systems may require a larger initial investment, their energy efficiency can result in long-term savings on heating expenditures.

What is the Best Floor Covering for Underfloor Heating?

Considering thermal conductivity and insulation properties is critical when selecting a floor covering for your underfloor heating system. Here are some common floor coverings and their compatibility with underfloor heating:

Timber: Hardwood and engineered wood floors are excellent solutions for underfloor heating. Their high thermal conductivity allows the heat to move through effectively.

Natural stone and ceramic: These tiles are also quite compatible with underfloor heating. They retain heat efficiently and can help keep the room at a constant temperature.

Laminate and Vinyl: They can function with underfloor heating but should be carefully chosen. Confirming compatibility with the manufacturer is critical because they have lesser thermal conductivity than other materials.

How is underfloor heating controlled?

Thermostats in underfloor heating systems often control the temperature in each room or zone. These thermostats can be programmable or smart, allowing users to set heating schedules and modify temperatures remotely using mobile apps. Some systems also include floor sensors that measure the real floor temperature, allowing for more precise control. This degree of control ensures effective and comfortable heating by allowing occupants to adjust the temperature in various regions of the building as needed.

Suitability of Buildings for an Underfloor Heating System

Several elements influence a building’s suitability for an underfloor heating system. The building’s construction materials and floor type are important in deciding whether it can efficiently distribute and retain heat. Furthermore, the structure’s insulation and thermal efficiency have an impact on the system’s overall effectiveness. Proper space planning and room layout are essential to provide equal heating throughout the structure. Also, the availability of acceptable energy sources and the overall heating requirements of the building are critical considerations in determining the viability of implementing an underfloor heating system.

Underfloor Heating System Myths

Myth: Underfloor Heating is Dangerous and Can Cause Leaks

Modern underfloor heating systems are built with safety in mind. To prevent leaks, the pipes or electric heating elements utilised in these systems are composed of robust materials such as cross-linked polyethene (PEX) or have protective coatings. A competent professional’s installation ensures that the system is secure and leak-free. Regular maintenance and inspections lower the danger of leakage even further.

Myth: It Takes Too Long to Heat a Room

While underfloor heating takes longer to achieve its maximum temperature than standard radiators, this does not imply that it is ineffective. Once at the right temperature, underfloor heating systems are designed to maintain a steady and comfortable temperature. They provide equal heat distribution throughout the room, increasing comfort and lowering energy use.

Myth: Underfloor Heating is Costly to Install and Maintain

While the initial installation cost of underfloor heating may be more than that of typical heating systems such as radiators, the long-term benefits must be considered. Because underfloor heating systems are particularly energy-efficient because they distribute heat more evenly and run at lower water temperatures (for water-based systems) or use electricity more efficiently (for electric systems). This increased efficiency may result in cheaper energy expenses over time, more than offsetting the initial outlay.

If you have any question feel free to contact us!

Underfloor Heating System Myths

Frequently Asked Questions

An underfloor heating system takes more time to heat up a floor as it works at low temperatures. It makes you wait longer for the space to reach a comfortable temperature.

The underfloor heating system is more energy efficient than other heating systems, so it will not significantly increase your electricity bills.


Underfloor heating is a contemporary, energy-efficient, and luxurious solution to warm your home during winter. Underfloor heating is a customisable solution appropriate for both new constructions and existing homes, with the option of electric or water-based systems and a number of floor coverings to complement the setup. Accept the pleasant comfort and efficiency of underfloor heating and change how you feel warm in your living areas.