I think the strength of this image is exactly what others have said as a flaw...lacking a specific subject. I think the colors and movement of the flames give it a real abstract feel. I would crop more into the part on the left of the photo, leaving out most of the bottom and all of the trees on the right....focus on the fire.
Not sure what BTU is and can't make the connection with the image. I've heard this acronym before somewhere...hmmm. As an image it's a good fire image overall, although somewhat busy and non-engaging for me as a viewer (no place to settle in with it). Good luck.