The Viessmann Group is one of the leading international manufacturers of heating, cooling and climate control technology. Founded in 1917, the family business maintains a staff of approximately 12,000 employees and generates 2.5 billion Euro in annual group turnover. For more information about Viessmann please visit, 'like'? and follow: Web: www.viessmann.com & heizung.de Facebook: www.facebook.com/viessmann Instagram: www.instagram.com/viessmann Twitter: www.twitter.com/Viessmann YouTube: www.Youtube.com/ViessmannDE