Dear all, We are studying the possibility to control the temperature of our optical hutch room at MX beam line (length ~ 15 m, width ~ 3 m, height ~ 2,2 m). If somebody already had experience in the subject, I would like to know the adopted solution and have a notion of its cost. Thanks. Fernando de Mattos ([log in to unmask]) - Physicist Brazilian Sychrotron Light Laboratory - Center for Structural Molecular Biology