I tried it at the house yesterday morning before going out. The noise is much like that of a microphone screaching and it is for more like 2 seconds. In the deer stand apparently it just SEEMS like 10 seconds, or maybe it actually was the other morning. But I'm sure now that it is not a vibration, because I held it from vibrating. It must just be the whistling of the air going through the jet swirls on the bottom, apparently it stops once they heat up to a certain point, just a hypothesis that I am unable to be sure of...

The stove is awesome though. Anyone else notice this noise? I wonder if it depends on which brand of gas you use?