Fire goes out too quickly

As a workaround if you want/need a normal fire; you can use fuel like lamp oil, diesel or gasoline, as well as ethanol and strong alcoholic beverages (and more) as a long lasting fuel for a fire.
Other than in real life, just one drop (1 cl) will burn a very, very long time (about a day for diesel and ethanol, a (few) hours for vodka).

Also, you can find the other discussion on this topic as well as the link to the GitHub issue here: