Subscribe to our Newsletter

Subscribe to follow us via email. Fill in your first and last name, your country and city, your company and your email to receive latest news (daily/weekly/monthly updates), information about new events (seminars, webinars and videos) and notifications about our newest Swegon Air Academy Case Studies straight to your mailbox. Please use English names for your country and city.

Select list(s):

History of ventilation: enhancing chimney draft!
October 13, 2015

History of ventilation: enhancing chimney draft!

In 12th century  the “dancers” started to be used to enhance chimney draft. The dancer was placed usually at the top of the chimney. It was a hood that was twisted by the wind so that the smoke outlet always ended up on the leeward side, which created a stronger draft from chimney when passers wind drew the chimney smoke.