Everything You Need to Know About Underfloor Heating Supplies

Underfloor heating has become a popular choice for homeowners and property developers looking for efficient, comfortable, and modern heating solutions. Not only does it offer an even distribution of warmth throughout your living space, but it also eliminates the need for bulky radiators, allowing for more freedom in interior design.

If you’re planning to install an underfloor heating system, it’s essential to understand the key supplies involved. From heating mats to thermostats, each component plays a crucial role in ensuring optimal performance and efficiency. In this blog, we’ll walk you through everything you need to know about underfloor heating supplies, whether you’re going for electric or water-based systems.

1. Types of Underfloor Heating Systems

Before diving into the supplies, let’s briefly cover the two main types of underfloor heating systems:

a) Electric Underfloor Heating

Also known as dry systems, electric underfloor heating uses heating cables or mats installed beneath the floor surface. It’s best suited for smaller areas like bathrooms or kitchens and is relatively easier and quicker to install.

b) Water Underfloor Heating

Wet systems involve pumping warm water through pipes beneath the floor. This is more suitable for larger areas or whole-house systems and is often connected to a boiler or heat pump.

Each system requires different supplies, so it’s important to choose based on your needs, space, and budget.

2. Key Underfloor Heating Supplies

Here’s a comprehensive list of the most common underfloor heating supplies and what they do:

a) Heating Mats or Cables (Electric Systems)

Electric systems require either loose cables or pre-spaced mats. Mats are easier to install and ideal for regular-shaped rooms, while loose cables offer more flexibility for awkward layouts. These elements are the main heat source, laid under tiles, laminate, or other flooring materials.

b) Pipes (Water Systems)

In water-based systems, pipes made from materials like PEX or multi-layer composites carry heated water throughout the floor. These are laid in loops and fixed securely before the flooring is applied.

c) Insulation Boards

Insulation boards are crucial for reducing heat loss and improving the efficiency of your system. By preventing downward heat transfer, they ensure that more warmth goes upwards into your room. They also help to speed up warm-up times.

d) Thermostats

No underfloor heating system is complete without a thermostat. These can range from basic manual controls to advanced smart thermostats that allow for precise temperature settings and scheduling. Some models even offer smartphone connectivity.

e) Manifolds (Water Systems)

A manifold is a central control unit that distributes water evenly to different loops of piping. It also helps to regulate flow and temperature in various zones. This component is essential in multi-room or large-scale systems.

f) Screed or Levelling Compound

After laying the pipes or mats, a layer of screed or levelling compound is usually applied to secure the system and create a smooth surface for flooring. This also helps with even heat distribution.

g) Edge Insulation Strips

These are placed around the perimeter of the room, especially in water systems, to allow for expansion and prevent heat loss through walls.

h) Fixing Systems

Depending on the type of underfloor heating, you may need fixing supplies such as clips, rails, or staples to secure the heating cables or pipes in place.

3. Choosing the Right Supplies

When selecting your underfloor heating supplies, consider the following:

• Floor Type: Some flooring materials, like tile or stone, conduct heat better and may influence your choice of heating system.

• Room Size and Shape: For smaller or irregularly shaped rooms, electric systems with loose cables might be more suitable.

• Budget: Electric systems are generally cheaper to install, while water systems offer better long-term efficiency.

• Installation Method: DIY installations are possible with electric systems, but water systems usually require professional help.

• Insulation: Don’t overlook the importance of good insulation—it makes a significant difference in running costs and system performance.

4. Maintenance and Efficiency

One of the benefits of underfloor heating is that it requires very little maintenance. However, choosing quality supplies from trusted manufacturers is essential for long-term reliability. Make sure all components are compatible and meet safety standards.

Regular checks on thermostats and manifolds, especially in water systems, can help prevent potential issues. It’s also wise to bleed the system occasionally to remove air pockets from water pipes.

5. Installation Tips

• Plan the layout carefully before starting—avoid placing heating elements under fixed furniture.

• Test the system before laying flooring to ensure it’s working correctly.

• Hire professionals for water-based systems unless you have experience in plumbing and heating.

• Always follow manufacturer guidelines for installation and spacing of cables or pipes.

Final Thoughts

Underfloor heating offers a sleek, energy-efficient alternative to traditional heating systems, and understanding the right supplies is key to getting it right. Whether you choose electric or water-based underfloor heating, make sure you invest in high-quality materials, proper insulation, and a reliable control system.

With the right preparation and components, you’ll enjoy a warm and cosy home with lower energy bills and a touch of modern comfort.