Mr. Heater Big Buddy Indoor/Outdoor Propane Heater #MH18B
Product Review (submitted on July 16, 2012):
We had one of these during the Ice Storm in February 2011. Lost power for two and a half days. Was perfect to heat about a 200 Sq Ft room kept that room at about 60 on the lowest setting (4000 btu) while the house dropped to the mid-thirties. Could get the room well into the eighties if I turned it up. On the lowest setting the two small tanks lasted about 12 Hrs.