Flamethrowers typically set fire to a stream of flammable liquid, like gasoline (as a trivial example). Torches use gas, or gas mixtures.
The inherent range differences are a meter (maybe 2) for torches, and flamethrowers do 50-100 m (source: Wikipedia). Just in case that isn’t clear, those aren’t the same category of device.
Flamethrowers typically set fire to a stream of flammable liquid, like gasoline (as a trivial example). Torches use gas, or gas mixtures.
The inherent range differences are a meter (maybe 2) for torches, and flamethrowers do 50-100 m (source: Wikipedia). Just in case that isn’t clear, those aren’t the same category of device.