A Lev Doorway or convection doorway is an inner flooring-to-ceiling (whole top) door, consisting of an ordinary door leaf and an upper leaf rather than the usual header wall. The leaves may or may not be separated by a transom. The doors enable helpful convection of heat air. A doorway https://bookmarksfocus.com/story5442501/5-tips-about-professional-moving-services-kuwait-you-can-use-today