I had bought this heater initially to put into my shop to make it more comfortable to work in during the winter months. In the latest freeze though, we had a bit of an emergency when our pool pump went out. To avoid the pool equipment pumps and pipes from freezing I "stole" the heater from my shop and put a tarp over my equipment including the filter and pumps and set the heater down in the middle of it all. I set the temperature at the lowest setting and started it up. I was expecting that with having to run continuously the heater would run out of fuel after 8 hours or so. The heater ran for about 12 hours, and still was going when I went to put fuel into it.
The only con that I can think of is that the fuel pump is not obnoxiously loud, but you would be able to hear it if you had it in a tent.
Rick 
Jeffrey 
