As part of the project, the forced ventilation system will be installed with waste heat recovery. This is a complementary project to the project "Reduction of energy intensity of the primary school and kindergartens Association, object Družstevní ochoz 1308, Praha 4 – k.ú. Nusle', which was approved for funding under the 19th OPE call with the condition of forced ventilation (regeneration). A separate ventilation system is designed for each class, a total of four air handling units with a total power of 5000 m³/h will be installed.