I have my propane torch now and we have even had a few days w/out dangerous winds. However, I have a problem with the smaller nozzles in that the flame goes out when turned to the ground. This is because the new 20# grill tanks were all manufactured with a highly restictive control valve in it. I need to buy a different kind of tank and probably a 40 pounder is better than a 20. [this is what I was told] I was also told that to actually get the 500,000 btus out of a torch you would need the pressure and volume supplied by 2 - 100# tanks, in tandem.