Heavy will be the debut studio album from the rock band Iron Butterfly, produced in early 1968. The majority of the tunes are strikingly simple, based upon two or three riffs. Models 0110DOW, 0120DOW, 0110GOW and 0120GOW are "away from wall or floor" integral sleeve static curtain type hearth dampers.  https://heavydutystainlesssteelda35567.blogspothub.com/35868681/heavy-duty-stainless-steel-damper-manufacturers-an-overview