And that's assuming the air is vented directly from the machine to the fan. It would actually rise by convection, spread over the whole ceiling, and lose a lot of heat through the roof.
I think this puts it WAY below the "fatal" level. From: "Daniel Rocha" <danieldi...@gmail.com> To: "vortex-l" <vortex-l@eskimo.com> Sent: Saturday, May 21, 2016 12:29:44 PM Subject: Re: [Vo]:1 MW of heat in a 6,500 sq. ft. facility without industrial ventilation would be fatal That's a surprisingly small volume. The machine has one of its smaller dimensions 3 meters. So, even 1.5m/s per second at one end would cool the device.