Never thought of doing it myself, but why not? What do you mean by an "open ceiling"? If you mean can I see the roof joists from the ground, then it's open.
The ceiling height is roughly 18 feet and slopes down to 16 feet over 50 feet in length (roughly). I'm in about 2500 sq.' of the shop. The entire shop is a little over 10,000 sq. ' I don't know what that would be in cubic feet.
70% of what I do is mig mild steel and aluminium, 15% plasma cutting the same things, 10% tig mild steel and aluminium, 5% arc welding. Sometimes I do galvanized but it's rare. Stainless is rarely, too. Nothing exotic either. Sometimes I have a need to anneal some aluminium, but thats not too often.
Hope that helps.
Welding☞Syncrowave 250,Millermatic 252,30a Spoolgun Cutting☞12" Hi-speed Cutoff Saw, 9x 12 Horizontal Bandsaw Milling☞Gorton 8d Vertical Mill Turning☞Monarch EE Precision Lathe Grinding ☞Brown & Sharpe #5 Surface Grinder