Backpack leaf blowers have larger engines, which means in turn, they tend to be the most powerful. They quickly move a large quantity of heavier debris and scattered leaves, so if there is a large area to cover, a petrol backpack leaf blower would be a good choice for you. This isn’t to say that Stihl’s handheld leaf blowers aren’t powerful, because they certainly are, however backpack leaf blowers are more efficient for large areas and heavier debris. Backpack leaf blowers also have a longer run time, again, making them well suited to large projects.