I've been using a Mr. Buddy heater in my travel trailer for years, and I'm not dead yet. Hooked to a 20 lb tank it will run nonstop for 3 days (All that proves is that I'm not dead...make your own decision). If I were doing a tent of that type, I'd get the Little Buddy unless you're going out in teens or colder. then I'd go with Mr. Buddy. Use your head & crack a window, and make some type of stand for it to avoid a fire. The generator/electric setup would work fine but I'd rather not mess with gasoline for any reason while big-game hunting. Good Luck and hunt safe.