Heat guns can burn the weeds completely, but this method is inefficient. The 3 main reasons include: Long treatment session: Users need to invest time using a heat gun because it eradicates weeds at a slow speed. This results in a large operating cost in the long run. Moreover, users will experience uncomfortable hand fatigue and back pain. Damage to the soil: The power from heat guns is hard to control, which will decrease the soil quality after the weed-killing process. When treating short weeds, the flame may also damage nearby plants. Low safety level: Weed torch hose is the most recommended benefit from weed torch reviews. This hose keeps users at a safe distance from the flame. Heat guns, on the contrary, provide only a small space from the handle to the tip.