What is Underfloor Heating?
Underfloor heating (UFH) stands as one of the most popular and energy-efficient ways to heat modern buildings. For UK tradespeople, understanding how UFH works is essential to confidently specify and install systems that deliver comfort, efficiency, and long-term value. So, what exactly is underfloor heating? In simple terms, it’s a system that distributes heat through pipes or electric cables installed beneath the floor surface. This method transforms the entire floor into a large, low-temperature heat emitter, providing even warmth across the entire room without the cold spots or draughts found with radiators.
Main Types of Underfloor Heating
There are two primary UFH system types that tradespeople encounter: wet (hydronic) and electric (dry) systems.
- Wet Underfloor Heating: This system circulates warm water through durable plastic pipes (typically PEX or Pert) connected to a central manifold. A boiler or a renewable energy source such as a heat pump supplies the heated water. Wet UFH systems are ideal for new builds and larger renovations, as they deliver excellent long-term energy savings and operate at lower temperatures than radiators.
- Electric Underfloor Heating: These systems use electric heating mats or loose cables installed directly beneath the floor finish. Installation is quicker and simpler, making them perfect for retrofits or smaller rooms like bathrooms and kitchens. While electric UFH has higher running costs than wet systems, it provides faster heat-up times and easy integration in tight spaces.
Benefits of Underfloor Heating
From both a technical and client perspective, underfloor heating offers many benefits:
- Even Heat Distribution: Radiant heat rises from the floor evenly, reducing cold spots and improving thermal comfort throughout the room.
- Energy Efficiency: UFH systems run at lower water temperatures than radiators, improving efficiency and lowering energy bills—especially when paired with heat pumps.
- Aesthetics & Space Saving: With no visible radiators, clients enjoy more flexible room layouts and a clean, uncluttered look.
- Improved Air Quality: UFH reduces air circulation, minimising the movement of dust—particularly beneficial for allergy sufferers.
As a tradesperson, mastering UFH means understanding not only the system types but also the components that ensure performance. From manifolds and thermostats to insulation boards and mixing valves, every part plays a role in system success. Whether you’re managing a full new-build installation or retrofitting a single room, offering UFH enhances your project’s appeal and value. By embracing these systems, you position yourself at the forefront of modern heating technology in the UK.