• measurement campaigns
• energy simulation
• microclimate comfort
• thermal comfort

The building studied in this work is called “Exeter Street Hall” (Brighton, UK) and it was built during the Victorian Age. Due to the inefficient constructive mode, its indoor thermal performance were very poor. A new heating system was therefore chosen to be installed by the Hall's managers. The aim of this work was therefore to test the efficiency this system by using energetical dynamic simulations, measurement campaigns and user surveys. The performances of this new heating system were seen to be not ideal. In fact, the obtained results highlighted that the thermal levels were still too low. It was proved that it is difficult to optimize the efficiency of historic buildings that are protected by the cultural heritage.In the last part of the study, some different types of heating systems were studied. For each scenario some analyses were developed, in order to compare them in terms of yearly costs and CO2 emissions into the environment. The results showed that the radiant ceiling panels were not the best option, but considering the cultural heritage of the building, it could be the only possibility.
Despite this fact, some habits could be done in order to improve the performance of radiant ceiling panels: the building’s timetable should be organized in a better way, concentrating similar activities during the same days. Another expedient is to put reflecting surfaces behind the panels, in order to reflect their irradiation, so to enhance the thermal performances of the radiant panels.