>>1592484

None. A far more useful tool can be found, for weed control, almost anywhere.

Real flamethrowers project a stream of flammable liquid, coating the target. These don't project anything with enough force to even overcome the upward curving of the flame due to heat rising. They'll take your hair off...

https://www.northerntool.com/shop/tools/product_200584783_200584783