Not to mention the three separate dedicated 15A circuits you would need to have installed in order to run the 3x 2000W power supplies running ideally at no more than 1400W sustained load each. And definitely would need 200A service to the house if you have a family living there with you.
But hey you could save on heating?
That’s a uniquely US issue - in NZ you can get a 100A single phase at 230V nominal without any issue. 23kw, straight to your door.
A single circuit using 10mm TPS would technically be enough to run what you’re describing. Might be pricey though, I’d probably take the excuse to get 3 phase installed so I could get access to the stock of used 3 phase machinery.
Not so sure about that. 200amp @ 240v is pretty standard for modern houses in the US. My house in Japan was only 40amps, so there are plenty of countries where this would be an issue.