Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Junk right from the start

I bought this heater just before my girlfriend and I went camping. I had heard the temp was going to get into the upper 30's and wanted it to take the edge off the chilly air in my 10 X 10 tent. It wouldn't even do that. I had heard from someone that I needed to break it in before it would start working well. I burned about 1/2 bottle of propane through it and you would still have to put your hand within 6 inches of the top of the heater before you could really feel the heat.