It doesn't really matter much, I'm not going to take my brand new stove back because of it, but I'm wondering how cubic feet is measured? Is it the total box dimensions, without the firebrick? Unless I'm not converting things correctly, I measured my firebox and it's 17.5 inches wide, 13 inches deep (a little more, maybe another 1/4 inch or so) and about 7.5 inches to the top of the firebricks on the side. My stove supposedly has a 1.8 cubic ft firebox, but using my measurements I only get about a 1 cube ft space? Is this pretty common among manufacturers? Related question: this is my first stove that's used firebricks. Do I generally want to limit the height of the wood to below the firebrick level? In other words, I don't want to stack the wood above the highest point of the bricks?