When I was in my 20's and 30's I use to tent with a sunflower heater in 0 degrees, then hunt all day, then come back and ate warm soup cooked on the sunflower heater and a sandwhich, no shower for 10 days. Now I am in my 50's, and I like it all. Internet, only so I can work and not lose money, otherwise I could be without internet. Hell, my main enclosed deer stand, is about75 yards from my house, I have thought about running power out to it, dry electric heat with no moisture to fog windows. But that would be a project for another time.