Count it in rockets before you craft it. The flamethrower takes more metal pipes than the rocket launcher itself, the pipes of three plain rockets, and it only burns wood. If your group sits on a few pipes before Level 3, ask whether the wooden compound next door is worth what a stone raid would need.
The rest of the bill is friendly. The low grade fuel comes out of the queue in whole batches, so nothing is left over, and the empty propane tanks are a cheap Level 2 blueprint of their own or barrel loot.
Watch out
Don't pour the whole fuel box into the craft. The weapon fires the same low grade fuel and drinks it fast, so a flamethrower built from your last fuel walks up to the wooden wall empty.
For a single wooden door, a Molotov costs no pipes at all.
Questions
Flame Thrower ×10: how many resources?
High Quality Metal ×150, Cloth ×250, Animal Fat ×750, Empty Propane Tank ×20, Metal Pipe ×60.
Which workbench does Flame Thrower need?
Workbench level 2.
How long does Flame Thrower take to craft?
2 min 30 s for one, every step included.
How much scrap does researching Flame Thrower take?
