UFH Animation. Underfloor Heating systems from REHAU UK. The REHAU Underfloor heating systems are currently providing cost-effective comfort and safety in a variety of installations across the world, including offices, factories, hospitals and schools. Wherever you install it, the system you choose is tailored to suit the space and its occupants. REHAU Underfloor heating provides the right amount of heat in the right place at the right time. REHAU BUILDING SOLUTIONS has a reputation for excellence. It has been earned by providing the building and construction industry with high quality products, expertise and customer support for over 40 years. It's a reputation we aim to maintain.