I'd love to have 20 but sadly I'm in Houston and summers here are brutal!  My garage is 3000 sq ft with 10 tons of AC (built in 2019 with plenty of insulation) but can only do so much here lol.  When we had our BTC farm back in 2015 we basically were screwed come Summer because ~100A @ 220V worth of power was not easy to even keep up with a 5ton unit and very very crappy insulation in a building built with new tin, but original structure/slab/etc from 1975 lol.

Hopefully going to order another chassis on Monday, going to just get the 1400W PSU version this time because I've finally got 240 up there.