I think Jamphone is probably referring to Cooling. Nobody really talked about cooling much, but this warehouse is in an environment high north in latitude, so it's winters most of the time with a modest summer. Also, these aren't high-end servers/computers, but bitcoin miners. I think they can operate in less-than-typical "data-center" friendly environments. This isn't Texas or California, even though some have been able to host there as well. Some have suggested that I may be able to do away with HVAC completely, or at a very bare minimum as long as I set up the racks properly and have smart ventilation. Are they bsing me? I don't think so, but maybe.
Having lived in Wenatchee most of my life(where this building in question is located), i can tell you that it gets hotter here in the summer then it does in LA. despite being fairly far north, we are a high desert region and frequently spend weeks in the summer with daily highs of 100+. There is no way you would be able to operate 24/7 from mid/late may to about October without some kind of cooling. I would even question the viability of running at night, as our nightly lows can stay 70+ for weeks as well.