From Gamer Escape's FFXIV Wiki, the free Final Fantasy XIV encyclopedia
Eaduuard has come into possession of what he believes to be an oven. Though he would like to use it to prepare hot meals, the device appears to be broken and unusable. The boy asks you to show it to Marques, who has demonstrated an aptitude for repairing similar contraptions.
- Marques identifies the oven as an alchemist's alembic, and states that while he can modify it for Eaduuard's purposes, he requires a bronze ornamental hammer, which can be purchased from the merchants at Camp Drybone.
- According to Marques, the makeshift oven should take no longer than a day to prepare-- a truly amazing feat of engineering. Just how the refugee acquired such advanced skills is a mystery to all, including the man himself...