Also could you please ellaborate on:
"Please realize these miners are built to be hosted in an industrial environment. Before you plug these in consult an electrician and make sure to get permits/inspection for any work done...
...These are not home miners like bitmain are, they really need to be in a data centre. A cost you must have calculated on your pre-purchase ROI analysis. "
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.