11 Tips for New Underfloor Heating Installers
Starting on any new venture can be daunting, and these days there is so much information around that it can become overwhelming. So to keep things simple when it comes to starting out with underfloor heating installations here’s our top 11 tips!
1. You’re Not On Your Own
You’re not on your own! While Multipipe’s friendly team is always on hand with helpful advice, the best way to gain confidence and ensure flawless installations is through expert training.
Our comprehensive Underfloor Heating Training Course is designed specifically for new installers like you. Get hands-on experience, learn industry best practices, and receive certification. It’s the ultimate foundation for becoming a reliable UFH professional. Check out our Training Course here or call us on 01245 227 630 to discuss your training needs.
2. Consider Heat Output
It’s vital to consider the fabric of the building as this will affect the heat output required by your UFH system. The needs for a well-insulated new extension are very different to those of a room with several windows and high ceilings.
3. Renovating?
Select a low profile system. Traditionally installing underfloor heating in a renovation project has meant high levels of disruption as the floor needed to be dug out and doors and skirting boards adjusted. However, modern solutions like Multipipe’s Altis range have a build height of just 18mm. The Altis range can often be fitted with minimal disruption to existing fittings.
4. Be Mindful of the Final Floor Covering and Maximum Temperatures
All flooring laid over the UFH system will have a top temperature restriction, so it’s important to consider what will be used. For example, Vinyl flooring has a maximum temperature limit of 27°C. Most carpet, wood and laminates have similar temperature restrictions too.
5. Plan & Measure
Zoning areas, room stat positions and types of controls are vital for best performance. In addition, the heat source can be crucial in achieving desired heat outputs, especially on older, poorly insulated, exposed properties.
When supplying details to us to create your system drawing, ensure you have accurately accounted for all the fixtures and fittings installed. We always recommend that UFH runs under kitchen units and islands as the system is likely to be in place longer than the original kitchen design – this will ensure the customer is not left with cold spots at a later date. In addition, running UFH under units will not cause any issues with stored items.
Feeling overwhelmed by the precision required in planning or the intricacies of system testing? These are common challenges for new installers. Our Underfloor Heating Training Course dives deep into these critical areas, providing the practical skills and theoretical knowledge to handle every aspect with confidence. Learn directly from our experts and avoid common pitfalls.
6. Use Appropriate Insulation to Improve Efficiency
Insulation is key to ensuring that the system runs effectively and minimises heat loss. Therefore, you should lay insulation before installing the manifold or pipework.
Building Regulations currently state that users must use at least 100mm of insulation and 50mm for retrofit projects for new builds. Properly insulating the system will decrease the amount of time needed to heat the system leading to energy savings and lower running costs.
7. Ensure the Subfloor is Clean Before Installing the Pipe
Multipipe MLCP is tough and durable, but you must ensure that the subfloor is clean so that nothing remains that could cause damage to the pipework. If it’s a wooden subfloor, check that there are no squeaky floorboards, as fixing this afterwards will not be easy. Remember that the maximum length of pipe that can be used in any one room is about 100m and should be set between 150-200mm apart. Your Multipipe drawing will specify this detail.
8. Select Your Manifold Location With Care
Ensure you place the manifold in a central, easy to access location. By choosing a central location, you can limit the chances of running pipe circuits across multiple rooms. This central location will help to reduce the overall length of pipe needed and save cost and time. In addition, reducing pipework lengths increases energy efficiency, as the water won’t run through multiple zones before reaching its intended destination. Find out more about the importance of manifold location in our blog.
9. Label Your Pipework
Labelling your flow and return pipework is a helpful tip for future maintenance. If pipes are not marked and subsequently get mixed up (e.g. the flow is fitted to the return network), the system will not operate efficiently.
10. Fill the System Carefully
To maximise the lifespan of the UFH system, it’s best to fill it with demineralised water. We recommend the Elysator Purotap. Once filled, you will need to pressure test the pipework before laying the screed. This is so you can check there are no air bubbles. The best practice is to fill one circuit at a time to minimise the possibility of air bubbles, which will reduce the system’s performance. Airlocks can stop the system from circulating and ultimately mean less heat is transmitted in the floor space.
11. Test the Complete System
Before the screed and final flooring go down, test the system again to ensure it operates as expected. Here are our top tips for a foolproof system test;
- Pressure test at 2 bar for ten minutes
- If everything appears okay, then continue the test at 10 bar for another ten minutes.
- If after 10 minutes the system is still okay, reduce the pressure down to between 3-5 bars until the screed is in place
- After the screed is laid, you can reduce the pressure to the standard working pressure (usually between 1-2 bars)
Beyond these tips and our helpful YouTube videos, the most impactful step you can take to accelerate your career is formal training. Our Underfloor Heating Training Course provides unparalleled practical experience, certification, and the confidence to tackle any UFH project. Join other professional installers across the country who have already mastered UFH installation with Multipipe. Invest in your future – secure your spot on our next course today!
