Flamethrower is broken

[Silvercloud29]

I made a flamethrower with the intent to use it against a very nasty blob. While the flamethrower was lit, I left clicked and it only shot fire one tile in front of me. Doing pretty much nothing. I am pretty sure it's supposed to shoot a line of flame at least 5 tiles long. Did it get nerfed? Did some badmin break it?