Got my new Big E today. Besides a ripped box and big scrape on the bottom edge of the left side, it looks OK. But I did notice in the firebox, where the grate sits in that metal box which has the two pipes coming out of it, once I fit and slide the box into those two pipes, it's not perfectly square. It's slanted to the right a bit. Anything wrong with this? The grate where the pellets fall into and box that the grate sits in not being perfectly level once I slide it onto the pipes? Thanks for any info. FG.