Ribbon burners are nice.....but I just don't think they are the correct choice for Bladesmithing. I have a close friend whom I tried to tell that to....but he was so cranked up about a ribbon burner/forge that he went ahead and built it. That was about a year ago, and every time I'm at his shop, he tells me how he wishes he'd listen to me. He used that ribbon burner forge about 1/2 dozen times, and has since gone back to his single burner/blown forge for Bladesmithing, siting the cost of running it in fuel, the time it takes to heat up, and that it doesn't heat as evenly as his round/single burner blown forge.
All that being said, having a background in ornamental Blacksmithing, prior to my Bladesmithing career, I can tell you that a ribbon burner/forge is great for large/ornamental work, it just has more drawbacks when it comes to forging blade steels versus a fully round/blown single burner forge. Not that it can't be used for such, it's just not ideal. It just take more of everything to run it.
To compliment Peppie..... that forge is one of the better built, and more well thought out ribbon burner forges I've seen.....NICE JOB!! I like the "dam" in front of the burner, and where/how the burner enters. I do have one question..... are those little pipes coming out before use? If not, I suspect they will be eroded/burned off after a few used/firings.