You guys are definitly right about the heated floor being the best way to go,wish I had that in my shop.However I am looking at a hanging gas heater,as a second choice.I had one years ago in a big garage and it worked out very good.The only heat I have now is a kerosene torpedo type heater.you have to be right in front of it to feel any heat,and after a couple hours you get a headache from the darn fumes.