Watts Water Technologies, a manufacturer of water handling devices, broke ground on a new addition to their foundry in Franklin, NH, in late 2012. This new metalcasting center required three new dust and fume collection systems - one to handle sand, one to handle fumes, and one to handle grinding dust. This video case study shows how these three systems handle and clean up the air so that it can be exhausted to atmosphere in the summer, or returned back into the facility in the winter to heat the building at Watts Water Technologies.