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New radiant heating system: Lower than ever - for the fastest comfort

Uponor Siccus Mini is an innovative underfloor heating system for renovation that offers benefits for installers, building contractors and end users alike. Quick and easy to install, it also scores highly in terms of energy efficiency.
  • Thin – a low-construction height makes Siccus Mini ideal for renovation projects
  • Sustainable – the system is ideal for combination with heat pumps, supporting energy efficiency and CO2  reduction
  • Convenient – Siccus Mini delivers comfort temperatures very fast due to its close-to-flooring design
  • Beneficial - 34 percent higher capacity compare to conventional dry systems

Finding arguments in favour of radiant heating isn’t difficult. But for renovation in existing buildings opting for underfloor heating isn’t an easy decision. The floor structure has to be adapted, which is a dirty and a very time-consuming process. It also changes the floor’s construction height. The new Siccus Mini from Uponor is an underfloor heating system with impressively low construction height of just 15 millimetres. The system is installed on the existing floor – which means less dirt – and dry installation eliminates long screed drying times. That makes Siccus Mini an easy and efficient heating solution. On top of that, this new underfloor heating system achieves a 34 percent higher heating capacity than conventional dry systems and uses 31 percent less heat energy than radiators in dynamic building operation.

Renovation of existing buildings

The new Siccus Mini underfloor heating system offers multiple benefits, particularly for renovation projects. Installers can fit it on their own without any interruptions, as there is no need for coordination with service providers from other trades. Following installation, the new top surface can be laid immediately, without having to factor in any screed drying time. Further argument for dry installation systems is that they are lighter than wet systems, an essential factor in the structural analysis of some projects. The low construction height of Siccus Mini is a big advantage for modernisation projects. After all, if the height of the floor structure changes, this also affects the height of windows, doorways, door handles, light switches, sockets and all other fixtures in the room. Minor changes caused by ultra-thin underfloor heating systems like Siccus Mini can be effortlessly accommodated, while substantial modifications would necessitate additional adjustments or even be unfeasible. Uponor offers Siccus Mini for all floorings – as the most optimal and easy to handle solution with laminate or parquet, and also suitable for all known flooring types - natural stone or tiles, and vinyl or carpet.

Feel the heat faster

The advantages of Siccus Mini extend beyond the scope of the renovation work itself. The way the underfloor heating system operates is highly convenient, too. The proximity to the top surface means the system achieves desired comfort temperatures inside the room much faster. It delivers a desired heating capacity of 90 percent in 50 minutes. Conventional dry systems need over two hours and wet systems - over three hours.

Lower emissions and  energy demand

Solutions such as Siccus Mini also help tackle climate change and reduce greenhouse gas emissions. The EU has set itself the target of being climate neutral by 2050 and achieving a 55 percent reduction in emissions by 2030 compared with the figure for 1990. This also affects the building sector, which is responsible for around 36 percent of emissions in the EU.[1] One possible strategy is installing underfloor heating systems, which consume less energy thanks to their lower flow temperatures and their use of the radiant heating principle. Cutting-edge solutions offer excellent potential for a much better energy footprint, especially in old buildings. Equipping these buildings with  low-temperature underfloor heating systems and an individual room control function can cut emissions by up to 39 percent.[2] Heat pumps are recommended as a sustainable source of energy. Siccus Mini is perfectly applicable for combination with heat pumps due to its low-temperature operation. Source: European Commission Source: Integral building services engineering – energy refurbishment concept student research project/model calculation, HBC Biberach University of Applied Sciences, WS 20/21

1.Source: European Commission
2.Source: Integral building services engineering – energy refurbishment concept student research project/model calculation, HBC Biberach University of Applied Sciences, WS 20/21