In my own home, I'd do this wiring myself, assuming I had panel space. Getting an electrician can be useful for liability purposes, but 240V/85A isn't scary if

In my own home, I'd do this wiring myself, assuming I had panel space. Getting an electrician can be useful for liability purposes, but 240V/85A isn't scary if you do some research on how to do it safely, minimum wire gauge, etc. ahead of time. This is a much higher amperage than any residential circuit requires, though, and will have trouble fitting on many 150A residential service panels.