Aluval offers new ENERGY ALUVAL a tool to calculate savings in euros you get the customer to replace old windows with Aluprom series made with the application. The old windows allow heat and cold obtained through gas or electricity (heating and cooling) is lost. With new windows, that energy is conserved so that significant energy savings are obtained with this application that translates directly into euros. A clear and real way to appreciate the money we saved by replacing old windows with made with Aluprom series.