It's a new thing, came with the last upgrade.I have never used the 'insert article' function and I think this was perhaps the first time I have seen it used in any of the threads I have been following. If you hover the mouse over the title, you see the title change to a link. But I did not know that and only read what was on the screen.
Not many know about it or use it.
It take up a bit of space, I used it here it due to the pic it showed.
Will note that it's a link in the future.
I blow it off with the air compressor when I take it out in the fall.More importantly, since you do use an ordinary house box fan, how often do you have to clean it out? If it works good for you, and is safe, that would certainly be a lot cheaper than buying a barn fan. Especially if you only need to use it occasionally.
It doesn't get any dirtier than when used in the house to blow cooler air inside.
Only run it for about 4 hours on the hot days,
and never leave it on overnight due to fire fears.
It's an ancient fan, gotta be at least 20, maybe 25 years old.
It moves much more air than the newer 20" house fans which are not deep in housing and blade angle.