Hi Guys,
So, I am in the middle of a long day of heat treating, second round of work coming to an end, nearly lunchtime. I picked up my heat gun, switched on, nothing, thermal cut-out right? Time for lunch. Put the gun down on my cluttered wooden bench, checked the stave was tied down right and started to depart. Heat gun switched itself back on. Imagine if I hadn't stopped to check the tie-downs. I hadn't put the switch back to off, and I hadn't turned the power off at the wall. An hours lunch break with the heat gun playing onto a wooden bench top, you do the math.