During the bear in the cabin scene, after Chet puts the door back up, shortly after, you'll see the door is on the floor while Roman is fighting the bear with the oar from the steps. (Also, note in that same shot, you'll see the bookshelf was destroyed to pieces with its books all over the floor. That scene was never shown and must have been cut from the movie).
When Roman is proposing his investment deal to Chet there's "instant wood fire starter" on the mantle behind Chet. The scene before this, where they had the blowout, Chet was trying and failing to make a fire using wrinkled up newspaper.