I have gone through 2 heat guns from Harbor freight. It seems that if I have it on for >10 min something in the switch gives out. The gun will work great till I turn it off, than it will never turn on again. These were the orange ones from harbor for $9.99. I have looked at other guns but the cheapest I could find was one at wally world for $70. So I went and got a propane torch for $12, I will see how that works.