DTIE 9.04 "Radiant Floor System" is the new technical paper edited by ATECYR. Currently one of the most used systems to supply heating, radiant floor heating/cooling can provide heating during the winter and cooling during the summer as it usually includes a heat pump system capable of producing hot or cold water, and ceiling cooling for refrigeration. The advantages presented by these systems include low space needs, ability to use low level thermal fluids through more environmentally friendly thermal generation systems or the reduction of energy use according to the local thermal needs.