I have a Miller 250 Bobcat that I use primarily in the garage. It's kind of a pain to move that thing outside everytime I use it. Has anyone had any luck creating a venting system so I could use a welder like this indoors? What are the potential problems (you know, like dying of asphyxiation or something crappy like that) or concerns I should have. Any images of how someone has done this would be great. Thanks!