siLe906 years ago-404how does that work exactly? Where is the hot exhaust air discharged? is there a hose?Show in original language (German)Christian Walker6 years ago+110An exhaust hose and a sliding bracket for the window are included in the scope of delivery. Here you can find detailed instructions starting on page 44: https://cdn.competec.ch/documents...Show in original language (German)Commentst.maeder6 years ago000Good day. Is it absolutely necessary to use the hose? We have a Velux roof window, hence the question...Show in original language (German)Comment