How do you vent it? My grandpa, when he was living fixed up a shooting house the same way. He would go sit in that box stand for hours and be warm and toasty. The only problem is he wanted to sleep all the time. His face would be all red every weekend when we were hunting and all he would want to do is sleep all day. When we would get back from the club it would last into Mon and sometimes Tues and the rest of the week he would be fine. Come the weekend though he could barely keep his eyes open again.

He wasn't the lazy type and was a go getter until the day he died. I have no doubt in my mind that the fumes from that little propane stove was affecting him.