Personally I would just use and Insertion pipe and make a loop with BC pipes.
Also, I'm not sure why everyone is saying the stuff needs to go in the top, but I have a Coke Oven making Charcoal and I feed it wood from the side and pull out charcoal on another side. So I'm guessing BC pipes don't care about what side they're stuck on and will work fine on any side, just like with Forestry machines.
btw, the outside of the "Mega Oven" is just Sandy Bricks from the looks of it, the cheaper and decorative version of the Coke Oven bricks. On the inside you can see how the Coke Ovens are inset 1 block into the ground (which are also Sandy Bricks from the looks of it). Or maybe a combination of full Sandy Bricks and facades ^^
Also, I'm not sure why everyone is saying the stuff needs to go in the top, but I have a Coke Oven making Charcoal and I feed it wood from the side and pull out charcoal on another side. So I'm guessing BC pipes don't care about what side they're stuck on and will work fine on any side, just like with Forestry machines.
btw, the outside of the "Mega Oven" is just Sandy Bricks from the looks of it, the cheaper and decorative version of the Coke Oven bricks. On the inside you can see how the Coke Ovens are inset 1 block into the ground (which are also Sandy Bricks from the looks of it). Or maybe a combination of full Sandy Bricks and facades ^^