I bought this a couple of years ago with a mind to gradually swap my national bee hives over to these but just haven’t had the time or motivation, so I’m staying old school. The fella I bought this from had two flow hives already, and kept them indoors. He just had a tube going from the side to an outside port, and he’s converted this one to do the same (as seen in the last two photos). It seemed to work well! I’ve left it in case a new owner wants to do the same, but it would be no problem to block that hole and just leave the main entrance as normal. Just don’t forget to block the main entrance if you do use it indoors, unless you want a house full of bees! It comes with all the tubes, feeder, instructions etc. I’ve listed it as new (other) as it’s obviously never been used. It’s too cumbersome to post, so I’ve listed it for collection, but I can deliver if your local.