Viessmann will host its annual Open House Event on Thursday, September 10, 2015 from 9:00 AM to 4:00 PM at its iconic facility in Warwick, RI. This year marks Viessmann’s 25th year in the US and kicks off the 2015 heating season with state-of-the-art technical training, product information and demonstrations, networking, tasty Texas BBQ and Read more