I'm not kidding. I was around 12 when I saw Deliverance with my parents at a drive in. I remember asking my mom if that banjo kid was Tommy Smother's son. I knew he played a banjo too and swore they looked alike. She just laughed and said no.
Mr Heater on Amazon.
70 bucks runs on 1 lb propane cans. Auto shutoff protection from oxygen depletion. Rated indoor safe, minimum ventilationneeded (4 sq in.) . 100 sq ft coverage.
3 hours avg run time per canister. 5.6 hours on low heat, 2 on high.
Plenty of others on that site running off...