Free images results:

Bonfire pictures, stock photos and images


Woodpile Royalty Free Stock Photography
Author: Ever
Fire Stock Photography
Author: Laukas

Also, here are some commercial RF-licensed images that match your search criteria:  
Bonfire Stock Images
Author: Gadagj
Bonfire Stock Photo
Author: Dedmazay
Bonfire Royalty Free Stock Images
Author: Mircala