You certainly seemed to have an interesting work day, @Damien Darkside...
Yes I did and I am going to bring it up in the next few videos! I just personally have a thing where I want the drain to be at the lowest section of the structure, because when TC first came out that is how it worked. I also don't like unsupported blocks in my TC structure, and this way my tables aren't in the ground. Because we have other mods like Thermal Expansion and Buildcraft in the pack, I am not going to be making this MASSIVE smelter. Sometimes sacrificing that 3-block space is fine. Plus I plan on raiding a few of the villages to the west for free bricks.