Dude, nobody should run datacenter grade miners on 120V circuits.
Most countries in the world don´t have such an exotic voltage anyway so please, stop whining about it.
Use some proper wiring and have your electrician run 220V/240V circuits for your miners.
These miners aren´t originally designed for home use so please, act with common sense.
I am also quite sure you don´t want to have 3kW of heat in your home during the summer.
But this guy said...
Please trim your quotations.
The person who said that ("hosted in an industrial environment... not home miners") was grn, not spondoolies-tech. I suggest you not take it too seriously. Running one or maybe two at home is reasonable and feasible. The design is optimized for datacenters, but that's not the only place you can run them.
As for consulting an electrician, that's advice for if you need to add circuits or outlets for the miner to run on. If your existing electrical infrastructure is sufficient (e.g. at least one 20A 220V circuit available, or two 15A 110V circuits), an electrician is not necessary.