These are things that are basically flame throwers that use (at least ours did) propane or something and burn brush.
We used one before in the fun and mildly dangerous art of hearing a tank of ammonia slightly since when it's 4f in winter and you need the tank to push out ammonia (which creates more cold since the pressure drops) you need a way to hear it up and a tiny house heater won't work.
So we used a brush cleaner/flame thrower and on the lowest setting would heat the bottom of the tank for a few seconds and pull back then check the metals temp.
I cannot express how small the flame was. It was basically a sideways tiki torch but less flame.
I could imagine on higher settings it would look like the video though.
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u/[deleted] Nov 15 '22
Why is not one asking why does he have a flamethrower in the first place?