Dogie is wrong that it is not cooler at least in my case. It is cooler this way with 1 unit in a 12 by 12 by 7.5 very well insulated room.
That's not what I was saying. Given a homogeneous environment its not going to make any difference. If you take it to an extreme of a single 600W unit in a unit with a window open, of course the floor is going to be cooler.
My only issue is Dogie; he was helpful with the wiring diagram for using two PSUs with 3 miners; but more often then not he seems misinformed on a lot of different topics. I am not even 100% convinced he actually works for Bitmain or just self appointed himself. But that's a whole other issue.
So because I suggested you should add a "this will void your warranty" disclaimer, you take it personally? Either way I'd rather you not like me then customers' ability to use their warranty be damaged, should they need it.
Bitmain has still made ZERO comment on the warranty - or lack there of. So I take your claim with a grain of salt - as it was written by you and only appears burried in some obscure forum on some wiki - where ever that is.