۳ meters, however forced flue models do not have any restriction.
https://butaneindustrial.com/wp-content/uploads/2016/04/Butane-Logo1-300x185.png00adminhttps://butaneindustrial.com/wp-content/uploads/2016/04/Butane-Logo1-300x185.pngadmin2014-07-05 11:24:352014-07-05 11:24:35What is the minimum chimney pipe height?
