Here's an interesting observation hive. http://www.beecar.com/indoor.html
I wonder if he will have to take it outside to work it?
I've never understood why people want a mixture of frames since the queen may lay in any and you eventually have to take some out to prevent overcrowding. Nor why you'd build one so big you can't lift it. You WILL have to take it outside to work it.
Otherwise it's interesting. IMO I think the fans are unecessary and may work against him. But I guess he will find out one way or the other.