With energy efficiency at the forefront of homeowners’ minds and industry regulations driving change, underfloor heating (UFH) is becoming an increasingly popular choice. The recently announced Future Homes Standard requires new homes to produce at least 75% less carbon emissions, accelerating the transition to low-carbon heating solutions. UFH is emerging as a key player, offering superior energy efficiency by operating at lower temperatures while still delivering consistent, comfortable warmth.
For installers, the rise in UFH demand presents both opportunities and challenges. While it offers clear benefits, incorrect installation can lead to inefficiency, uneven heating, and costly call backs. Expertise is essential – not only for ensuring a trouble-free installation but also for guiding homeowners in choosing the right system for their property.
In this blog, we'll provide a practical guide to help installers get UFH installation right the first time - covering everything from system selection to best practices for performance and efficiency.
Choosing the right UFH system
Selecting the correct UFH system is a crucial first step in any installation. There are two primary types: hydronic underfloor systems, like Wavin’s Comfia, which use a network of pipes to distribute warm water beneath the floor, and electric systems, which rely on heating cables.
Hydronic (water-based systems) are the recommended solution in most cases, being highly efficient, operating at lower temperatures than traditional radiators while providing even, long-lasting warmth. Running at around 30–50°C compared to radiators at 60–70°C, they reduce energy consumption and help lower heating bills over time. While installation is more complex and suited to new builds or extensions, their compatibility with renewable heating systems, such as heat pumps and solar thermal panels, makes them a compelling choice for homeowners looking to future-proof their heating with sustainable, energy-efficient solutions.
Electric UFH has traditionally been used where there are structural constraints, such as in upstairs spaces where floor height or access is restricted. However, new solutions like Wavin’s WarmDeck now offer a water-based alternative that delivers the same low build height, with greater energy efficiency and long-term performance.
WarmDeck is a low-profile, overlay panel system that supports hydronic UFH with minimal impact on floor height and can be laid over existing chipboard floors, making it a practical choice for both new builds and renovations where space or drying time is limited. These innovations have made it possible to install energy-efficient, low-profile hydronic systems in upper floors - eliminating the need to rely on electric matting in areas previously considered challenging for water-based UFH.
Practice makes perfect
Once you’ve chosen a UFH system, the key to successful installation lies in careful planning and attention to detail. In new builds, where hydronic UFH is the preferred choice due to its efficiency and seamless integration into construction, installation is straightforward. Full access to the subfloor during the build allows for a bespoke UFH system tailored to the property layout. As these systems connect to a boiler or heat pump via a manifold, incorporating them early on in the construction phase makes for a smooth and efficient setup.
For retrofit projects, space constraints and existing floor structures present unique challenges. Unlike new builds, where floors can be designed around UFH, renovations often require adapting to pre-existing layouts, which may complicate installation; this is where low profile floating floor systems can be used in situations where preserving floor heights is critical. Solutions like Wavin’s “WarmDeck” allow for seamless integration without compromising performance. It’s important here to choose the right product if you want the best results, balancing energy efficiency with practicality.
Ultimately, it’s critical for installers to have sufficient knowledge of all of the technologies available to ensure that they can make sure the job is done right first time. This is why manufacturers have created dedicated installer networks to support professionals with bespoke training.
The Wavin Installer Network (WIN) is a free to join initiative that provides practical and technical support for underfloor heating, ventilation, and heat recovery installers. Members gain access to expert guidance, bespoke training, and priority technical support alongside increased visibility, as homeowners and developers can search for accredited professionals in their area through the platform.
Maximising performance with smarter solutions
As the demand for sustainable heating solutions grows, it’s crucial for installers to have the knowledge and confidence to work with the latest UFH systems. A correctly designed system is key to enhancing efficiency, ensuring even heat distribution, and reducing energy costs – creating long-term value for homeowners.
As UFH continues to gain traction, installers must stay ahead of the curve. Networks, like WIN, provide access to essential guidance, training, and resources to help professionals refine their UFH expertise. By equipping installers with the right knowledge, we can ensure UFH systems are installed correctly the first time - reducing call backs, increasing homeowner satisfaction, and driving the industry toward a more energy-efficient future.
For more information on Wavin’s underfloor heating offering, click here.