Does a "suitcase" case exist?
Lets get serious. Really.
* This is about 1500 to 2000 watt heat. It wont heat you feet, it will heat most smaller rooms.
* It is LOUD. And no, you can not isolate this - unless you get LARGE for the noice cancellation. It will not be humming, it will be screaming away. I suggest trying out one 6990 before having obviously ridiculous ideas.
* At the end, it is theft. It WILL be found, you WILL be fired, you WILL be fined. Abnd it is quite a lot of theft - about 1.x megawatthours (1500-2000 kilowatthours).
I wish peiople would stop having outright stupid ideas. And maybe put some integrity back into their life.